goctl add stdin flag (#170)

* add stdin flag to use stdin receive api doc and use stdout output formatted result

* optimize code and output error through stderr

* fix mistake

* add dir parameter legality verify

.codecov.yml

@@ -1,4 +1,4 @@
 ignore:
   - "doc"
   - "example"
-  - "tools"
+  - "tools"

.github/workflows/go.yml

@@ -7,7 +7,6 @@ on:
     branches: [ master ]
 
 jobs:
-
   build:
     name: Build
     runs-on: ubuntu-latest

.golangci.yml

@@ -1,36 +0,0 @@
-run:
-  #  concurrency: 6
-  timeout: 5m
-  skip-dirs:
-    - core
-    - doc
-    - example
-    - rest
-    - rpcx
-    - tools
-
-
-linters:
-  disable-all: true
-  enable:
-    - bodyclose
-    - deadcode
-    - errcheck
-    - gosimple
-    - govet
-    - ineffassign
-    - staticcheck
-    - structcheck
-    - typecheck
-    - unused
-    - varcheck
-#    - dupl
-
-
-linters-settings:
-
-issues:
-  exclude-rules:
-    - linters:
-        - staticcheck
-      text: 'SA1019: (baseresponse.BoolResponse|oldresponse.FormatBadRequestResponse|oldresponse.FormatResponse)|SA5008: unknown JSON option ("optional"|"default=|"range=|"options=)'

core/bloom/bloom.go

@@ -13,15 +13,13 @@ const (
 	// maps as k in the error rate table
 	maps      = 14
 	setScript = `
-local key = KEYS[1]
 for _, offset in ipairs(ARGV) do
-	redis.call("setbit", key, offset, 1)
+	redis.call("setbit", KEYS[1], offset, 1)
 end
 `
 	testScript = `
-local key = KEYS[1]
 for _, offset in ipairs(ARGV) do
-	if tonumber(redis.call("getbit", key, offset)) == 0 then
+	if tonumber(redis.call("getbit", KEYS[1], offset)) == 0 then
 		return false
 	end
 end
@@ -39,7 +37,6 @@ type (
 
 	BloomFilter struct {
 		bits   uint
-		maps   uint
 		bitSet BitSetProvider
 	}
 )

core/bloom/bloom_test.go

@@ -2,18 +2,18 @@ package bloom
 
 import (
 	"testing"
+	"time"
 
 	"github.com/alicebob/miniredis"
 	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/lang"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 )
 
 func TestRedisBitSet_New_Set_Test(t *testing.T) {
-	s, err := miniredis.Run()
-	if err != nil {
-		t.Error("Miniredis could not start")
-	}
-	defer s.Close()
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
 
 	store := redis.NewRedis(s.Addr(), redis.NodeType)
 	bitSet := newRedisBitSet(store, "test_key", 1024)
@@ -46,11 +46,9 @@ func TestRedisBitSet_New_Set_Test(t *testing.T) {
 }
 
 func TestRedisBitSet_Add(t *testing.T) {
-	s, err := miniredis.Run()
-	if err != nil {
-		t.Error("Miniredis could not start")
-	}
-	defer s.Close()
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
 
 	store := redis.NewRedis(s.Addr(), redis.NodeType)
 	filter := New(store, "test_key", 64)
@@ -60,3 +58,22 @@ func TestRedisBitSet_Add(t *testing.T) {
 	assert.Nil(t, err)
 	assert.True(t, ok)
 }
+
+func createMiniRedis() (r *miniredis.Miniredis, clean func(), err error) {
+	r, err = miniredis.Run()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return r, func() {
+		ch := make(chan lang.PlaceholderType)
+		go func() {
+			r.Close()
+			close(ch)
+		}()
+		select {
+		case <-ch:
+		case <-time.After(time.Second):
+		}
+	}, nil
+}

core/breaker/breaker.go

@@ -5,17 +5,12 @@ import (
 	"fmt"
 	"strings"
 	"sync"
-	"time"
 
 	"github.com/tal-tech/go-zero/core/mathx"
 	"github.com/tal-tech/go-zero/core/proc"
 	"github.com/tal-tech/go-zero/core/stat"
 	"github.com/tal-tech/go-zero/core/stringx"
-)
-
-const (
-	StateClosed State = iota
-	StateOpen
+	"github.com/tal-tech/go-zero/core/timex"
 )
 
 const (
@@ -27,11 +22,10 @@ const (
 var ErrServiceUnavailable = errors.New("circuit breaker is open")
 
 type (
-	State      = int32
 	Acceptable func(err error) bool
 
 	Breaker interface {
-		// Name returns the name of the netflixBreaker.
+		// Name returns the name of the Breaker.
 		Name() string
 
 		// Allow checks if the request is allowed.
@@ -40,34 +34,34 @@ type (
 		// If not allow, ErrServiceUnavailable will be returned.
 		Allow() (Promise, error)
 
-		// Do runs the given request if the netflixBreaker accepts it.
-		// Do returns an error instantly if the netflixBreaker rejects the request.
-		// If a panic occurs in the request, the netflixBreaker handles it as an error
+		// Do runs the given request if the Breaker accepts it.
+		// Do returns an error instantly if the Breaker rejects the request.
+		// If a panic occurs in the request, the Breaker handles it as an error
 		// and causes the same panic again.
 		Do(req func() error) error
 
-		// DoWithAcceptable runs the given request if the netflixBreaker accepts it.
-		// Do returns an error instantly if the netflixBreaker rejects the request.
-		// If a panic occurs in the request, the netflixBreaker handles it as an error
+		// DoWithAcceptable runs the given request if the Breaker accepts it.
+		// DoWithAcceptable returns an error instantly if the Breaker rejects the request.
+		// If a panic occurs in the request, the Breaker handles it as an error
 		// and causes the same panic again.
 		// acceptable checks if it's a successful call, even if the err is not nil.
 		DoWithAcceptable(req func() error, acceptable Acceptable) error
 
-		// DoWithFallback runs the given request if the netflixBreaker accepts it.
-		// DoWithFallback runs the fallback if the netflixBreaker rejects the request.
-		// If a panic occurs in the request, the netflixBreaker handles it as an error
+		// DoWithFallback runs the given request if the Breaker accepts it.
+		// DoWithFallback runs the fallback if the Breaker rejects the request.
+		// If a panic occurs in the request, the Breaker handles it as an error
 		// and causes the same panic again.
 		DoWithFallback(req func() error, fallback func(err error) error) error
 
-		// DoWithFallbackAcceptable runs the given request if the netflixBreaker accepts it.
-		// DoWithFallback runs the fallback if the netflixBreaker rejects the request.
-		// If a panic occurs in the request, the netflixBreaker handles it as an error
+		// DoWithFallbackAcceptable runs the given request if the Breaker accepts it.
+		// DoWithFallbackAcceptable runs the fallback if the Breaker rejects the request.
+		// If a panic occurs in the request, the Breaker handles it as an error
 		// and causes the same panic again.
 		// acceptable checks if it's a successful call, even if the err is not nil.
 		DoWithFallbackAcceptable(req func() error, fallback func(err error) error, acceptable Acceptable) error
 	}
 
-	BreakerOption func(breaker *circuitBreaker)
+	Option func(breaker *circuitBreaker)
 
 	Promise interface {
 		Accept()
@@ -95,7 +89,7 @@ type (
 	}
 )
 
-func NewBreaker(opts ...BreakerOption) Breaker {
+func NewBreaker(opts ...Option) Breaker {
 	var b circuitBreaker
 	for _, opt := range opts {
 		opt(&b)
@@ -133,7 +127,7 @@ func (cb *circuitBreaker) Name() string {
 	return cb.name
 }
 
-func WithName(name string) BreakerOption {
+func WithName(name string) Option {
 	return func(b *circuitBreaker) {
 		b.name = name
 	}
@@ -195,23 +189,23 @@ type errorWindow struct {
 
 func (ew *errorWindow) add(reason string) {
 	ew.lock.Lock()
-	ew.reasons[ew.index] = fmt.Sprintf("%s %s", time.Now().Format(timeFormat), reason)
+	ew.reasons[ew.index] = fmt.Sprintf("%s %s", timex.Time().Format(timeFormat), reason)
 	ew.index = (ew.index + 1) % numHistoryReasons
 	ew.count = mathx.MinInt(ew.count+1, numHistoryReasons)
 	ew.lock.Unlock()
 }
 
 func (ew *errorWindow) String() string {
-	var builder strings.Builder
+	var reasons []string
 
 	ew.lock.Lock()
-	for i := ew.index + ew.count - 1; i >= ew.index; i-- {
-		builder.WriteString(ew.reasons[i%numHistoryReasons])
-		builder.WriteByte('\n')
+	// reverse order
+	for i := ew.index - 1; i >= ew.index-ew.count; i-- {
+		reasons = append(reasons, ew.reasons[(i+numHistoryReasons)%numHistoryReasons])
 	}
 	ew.lock.Unlock()
 
-	return builder.String()
+	return strings.Join(reasons, "\n")
 }
 
 type promiseWithReason struct {

core/breaker/breaker_test.go

@@ -2,7 +2,9 @@ package breaker
 
 import (
 	"errors"
+	"fmt"
 	"strconv"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -33,6 +35,84 @@ func TestLogReason(t *testing.T) {
 	assert.Equal(t, numHistoryReasons, errs.count)
 }
 
+func TestErrorWindow(t *testing.T) {
+	tests := []struct {
+		name    string
+		reasons []string
+	}{
+		{
+			name: "no error",
+		},
+		{
+			name:    "one error",
+			reasons: []string{"foo"},
+		},
+		{
+			name:    "two errors",
+			reasons: []string{"foo", "bar"},
+		},
+		{
+			name:    "five errors",
+			reasons: []string{"first", "second", "third", "fourth", "fifth"},
+		},
+		{
+			name:    "six errors",
+			reasons: []string{"first", "second", "third", "fourth", "fifth", "sixth"},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			var ew errorWindow
+			for _, reason := range test.reasons {
+				ew.add(reason)
+			}
+			var reasons []string
+			if len(test.reasons) > numHistoryReasons {
+				reasons = test.reasons[len(test.reasons)-numHistoryReasons:]
+			} else {
+				reasons = test.reasons
+			}
+			for _, reason := range reasons {
+				assert.True(t, strings.Contains(ew.String(), reason), fmt.Sprintf("actual: %s", ew.String()))
+			}
+		})
+	}
+}
+
+func TestPromiseWithReason(t *testing.T) {
+	tests := []struct {
+		name   string
+		reason string
+		expect string
+	}{
+		{
+			name: "success",
+		},
+		{
+			name:   "success",
+			reason: "fail",
+			expect: "fail",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			promise := promiseWithReason{
+				promise: new(mockedPromise),
+				errWin:  new(errorWindow),
+			}
+			if len(test.reason) == 0 {
+				promise.Accept()
+			} else {
+				promise.Reject(test.reason)
+			}
+
+			assert.True(t, strings.Contains(promise.errWin.String(), test.expect))
+		})
+	}
+}
+
 func BenchmarkGoogleBreaker(b *testing.B) {
 	br := NewBreaker()
 	for i := 0; i < b.N; i++ {
@@ -41,3 +121,12 @@ func BenchmarkGoogleBreaker(b *testing.B) {
 		})
 	}
 }
+
+type mockedPromise struct {
+}
+
+func (m *mockedPromise) Accept() {
+}
+
+func (m *mockedPromise) Reject() {
+}

core/breaker/breakers.go

@@ -41,10 +41,13 @@ func GetBreaker(name string) Breaker {
 	}
 
 	lock.Lock()
-	defer lock.Unlock()
+	b, ok = breakers[name]
+	if !ok {
+		b = NewBreaker(WithName(name))
+		breakers[name] = b
+	}
+	lock.Unlock()
 
-	b = NewBreaker()
-	breakers[name] = b
 	return b
 }
 
@@ -55,20 +58,5 @@ func NoBreakFor(name string) {
 }
 
 func do(name string, execute func(b Breaker) error) error {
-	lock.RLock()
-	b, ok := breakers[name]
-	lock.RUnlock()
-	if ok {
-		return execute(b)
-	}
-
-	lock.Lock()
-	b, ok = breakers[name]
-	if !ok {
-		b = NewBreaker(WithName(name))
-		breakers[name] = b
-	}
-	lock.Unlock()
-
-	return execute(b)
+	return execute(GetBreaker(name))
 }

core/breaker/googlebreaker.go

@@ -2,7 +2,6 @@ package breaker
 
 import (
 	"math"
-	"sync/atomic"
 	"time"
 
 	"github.com/tal-tech/go-zero/core/collection"
@@ -21,7 +20,6 @@ const (
 // see Client-Side Throttling section in https://landing.google.com/sre/sre-book/chapters/handling-overload/
 type googleBreaker struct {
 	k     float64
-	state int32
 	stat  *collection.RollingWindow
 	proba *mathx.Proba
 }
@@ -32,7 +30,6 @@ func newGoogleBreaker() *googleBreaker {
 	return &googleBreaker{
 		stat:  st,
 		k:     k,
-		state: StateClosed,
 		proba: mathx.NewProba(),
 	}
 }
@@ -43,15 +40,9 @@ func (b *googleBreaker) accept() error {
 	// https://landing.google.com/sre/sre-book/chapters/handling-overload/#eq2101
 	dropRatio := math.Max(0, (float64(total-protection)-weightedAccepts)/float64(total+1))
 	if dropRatio <= 0 {
-		if atomic.LoadInt32(&b.state) == StateOpen {
-			atomic.CompareAndSwapInt32(&b.state, StateOpen, StateClosed)
-		}
 		return nil
 	}
 
-	if atomic.LoadInt32(&b.state) == StateClosed {
-		atomic.CompareAndSwapInt32(&b.state, StateClosed, StateOpen)
-	}
 	if b.proba.TrueOnProba(dropRatio) {
 		return ErrServiceUnavailable
 	}

core/breaker/googlebreaker_test.go

@@ -2,7 +2,6 @@ package breaker
 
 import (
 	"errors"
-	"math"
 	"math/rand"
 	"testing"
 	"time"
@@ -27,7 +26,6 @@ func getGoogleBreaker() *googleBreaker {
 	return &googleBreaker{
 		stat:  st,
 		k:     5,
-		state: StateClosed,
 		proba: mathx.NewProba(),
 	}
 }
@@ -158,7 +156,7 @@ func TestGoogleBreakerSelfProtection(t *testing.T) {
 	t.Run("total request > 100, total < 2 * success", func(t *testing.T) {
 		b := getGoogleBreaker()
 		size := rand.Intn(10000)
-		accepts := int(math.Ceil(float64(size))) + 1
+		accepts := size + 1
 		markSuccess(b, accepts)
 		markFailed(b, size-accepts)
 		assert.Nil(t, b.accept())

core/cmdline/input_test.go

@@ -0,0 +1,80 @@
+package cmdline
+
+import (
+	"fmt"
+	"os"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/iox"
+	"github.com/tal-tech/go-zero/core/lang"
+)
+
+func TestEnterToContinue(t *testing.T) {
+	restore, err := iox.RedirectInOut()
+	assert.Nil(t, err)
+	defer restore()
+
+	var wg sync.WaitGroup
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		fmt.Println()
+	}()
+	go func() {
+		defer wg.Done()
+		EnterToContinue()
+	}()
+
+	wait := make(chan lang.PlaceholderType)
+	go func() {
+		wg.Wait()
+		close(wait)
+	}()
+
+	select {
+	case <-time.After(time.Second):
+		t.Error("timeout")
+	case <-wait:
+	}
+}
+
+func TestReadLine(t *testing.T) {
+	r, w, err := os.Pipe()
+	assert.Nil(t, err)
+	ow := os.Stdout
+	os.Stdout = w
+	or := os.Stdin
+	os.Stdin = r
+	defer func() {
+		os.Stdin = or
+		os.Stdout = ow
+	}()
+
+	const message = "hello"
+	var wg sync.WaitGroup
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		fmt.Println(message)
+	}()
+	go func() {
+		defer wg.Done()
+		input := ReadLine("")
+		assert.Equal(t, message, input)
+	}()
+
+	wait := make(chan lang.PlaceholderType)
+	go func() {
+		wg.Wait()
+		close(wait)
+	}()
+
+	select {
+	case <-time.After(time.Second):
+		t.Error("timeout")
+	case <-wait:
+	}
+}

core/codec/dh_test.go

@@ -71,3 +71,12 @@ func TestDiffieHellmanMiddleManAttack(t *testing.T) {
 	assert.Nil(t, err)
 	assert.Equal(t, string(src), string(decryptedSrc))
 }
+
+func TestKeyBytes(t *testing.T) {
+	var empty DhKey
+	assert.Equal(t, 0, len(empty.Bytes()))
+
+	key, err := GenerateKey()
+	assert.Nil(t, err)
+	assert.True(t, len(key.Bytes()) > 0)
+}

core/codec/gzip.go

@@ -6,6 +6,8 @@ import (
 	"io"
 )
 
+const unzipLimit = 100 * 1024 * 1024 // 100MB
+
 func Gzip(bs []byte) []byte {
 	var b bytes.Buffer
 
@@ -24,8 +26,7 @@ func Gunzip(bs []byte) ([]byte, error) {
 	defer r.Close()
 
 	var c bytes.Buffer
-	_, err = io.Copy(&c, r)
-	if err != nil {
+	if _, err = io.Copy(&c, io.LimitReader(r, unzipLimit)); err != nil {
 		return nil, err
 	}
 

core/codec/hmac_test.go

@@ -0,0 +1,19 @@
+package codec
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestHmac(t *testing.T) {
+	ret := Hmac([]byte("foo"), "bar")
+	assert.Equal(t, "f9320baf0249169e73850cd6156ded0106e2bb6ad8cab01b7bbbebe6d1065317",
+		fmt.Sprintf("%x", ret))
+}
+
+func TestHmacBase64(t *testing.T) {
+	ret := HmacBase64([]byte("foo"), "bar")
+	assert.Equal(t, "+TILrwJJFp5zhQzWFW3tAQbiu2rYyrAbe7vr5tEGUxc=", ret)
+}

core/codec/rsa_test.go

@@ -0,0 +1,58 @@
+package codec
+
+import (
+	"encoding/base64"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/fs"
+)
+
+const (
+	priKey = `-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----`
+	pubKey = `-----BEGIN PUBLIC KEY-----
+MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4TJk3onpqb2RYE3wwt23J9SHL
+FstHGSkUYFLe+nl1dEKHbD+/Zt95L757J3xGTrwoTc7KCTxbrgn+stn0w52BNjj/
+kIE2ko4lbh/v8Fl14AyVR9msfKtKOnhe5FCT72mdtApr+qvzcC3q9hfXwkyQU32p
+v7q5UimZ205iKSBmgQIDAQAB
+-----END PUBLIC KEY-----`
+	testBody = `this is the content`
+)
+
+func TestCryption(t *testing.T) {
+	enc, err := NewRsaEncrypter([]byte(pubKey))
+	assert.Nil(t, err)
+	ret, err := enc.Encrypt([]byte(testBody))
+	assert.Nil(t, err)
+
+	file, err := fs.TempFilenameWithText(priKey)
+	assert.Nil(t, err)
+	dec, err := NewRsaDecrypter(file)
+	assert.Nil(t, err)
+	actual, err := dec.Decrypt(ret)
+	assert.Nil(t, err)
+	assert.Equal(t, testBody, string(actual))
+
+	actual, err = dec.DecryptBase64(base64.StdEncoding.EncodeToString(ret))
+	assert.Nil(t, err)
+	assert.Equal(t, testBody, string(actual))
+}
+
+func TestBadPubKey(t *testing.T) {
+	_, err := NewRsaEncrypter([]byte("foo"))
+	assert.Equal(t, ErrPublicKey, err)
+}

core/collection/cache.go

@@ -29,7 +29,6 @@ type (
 		name           string
 		lock           sync.Mutex
 		data           map[string]interface{}
-		evicts         *list.List
 		expire         time.Duration
 		timingWheel    *TimingWheel
 		lruCache       lru
@@ -82,12 +81,7 @@ func (c *Cache) Del(key string) {
 }
 
 func (c *Cache) Get(key string) (interface{}, bool) {
-	c.lock.Lock()
-	value, ok := c.data[key]
-	if ok {
-		c.lruCache.add(key)
-	}
-	c.lock.Unlock()
+	value, ok := c.doGet(key)
 	if ok {
 		c.stats.IncrementHit()
 	} else {
@@ -113,12 +107,25 @@ func (c *Cache) Set(key string, value interface{}) {
 }
 
 func (c *Cache) Take(key string, fetch func() (interface{}, error)) (interface{}, error) {
-	val, fresh, err := c.barrier.DoEx(key, func() (interface{}, error) {
+	if val, ok := c.doGet(key); ok {
+		c.stats.IncrementHit()
+		return val, nil
+	}
+
+	var fresh bool
+	val, err := c.barrier.Do(key, func() (interface{}, error) {
+		// because O(1) on map search in memory, and fetch is an IO query
+		// so we do double check, cache might be taken by another call
+		if val, ok := c.doGet(key); ok {
+			return val, nil
+		}
+
 		v, e := fetch()
 		if e != nil {
 			return nil, e
 		}
 
+		fresh = true
 		c.Set(key, v)
 		return v, nil
 	})
@@ -137,6 +144,18 @@ func (c *Cache) Take(key string, fetch func() (interface{}, error)) (interface{}
 	return val, nil
 }
 
+func (c *Cache) doGet(key string) (interface{}, bool) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	value, ok := c.data[key]
+	if ok {
+		c.lruCache.add(key)
+	}
+
+	return value, ok
+}
+
 func (c *Cache) onEvict(key string) {
 	// already locked
 	delete(c.data, key)
@@ -258,18 +277,15 @@ func (cs *cacheStat) statLoop() {
 	ticker := time.NewTicker(statInterval)
 	defer ticker.Stop()
 
-	for {
-		select {
-		case <-ticker.C:
-			hit := atomic.SwapUint64(&cs.hit, 0)
-			miss := atomic.SwapUint64(&cs.miss, 0)
-			total := hit + miss
-			if total == 0 {
-				continue
-			}
-			percent := 100 * float32(hit) / float32(total)
-			logx.Statf("cache(%s) - qpm: %d, hit_ratio: %.1f%%, elements: %d, hit: %d, miss: %d",
-				cs.name, total, percent, cs.sizeCallback(), hit, miss)
+	for range ticker.C {
+		hit := atomic.SwapUint64(&cs.hit, 0)
+		miss := atomic.SwapUint64(&cs.miss, 0)
+		total := hit + miss
+		if total == 0 {
+			continue
 		}
+		percent := 100 * float32(hit) / float32(total)
+		logx.Statf("cache(%s) - qpm: %d, hit_ratio: %.1f%%, elements: %d, hit: %d, miss: %d",
+			cs.name, total, percent, cs.sizeCallback(), hit, miss)
 	}
 }

core/collection/cache_test.go

@@ -1,6 +1,7 @@
 package collection
 
 import (
+	"errors"
 	"strconv"
 	"sync"
 	"sync/atomic"
@@ -10,6 +11,8 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+var errDummy = errors.New("dummy")
+
 func TestCacheSet(t *testing.T) {
 	cache, err := NewCache(time.Second*2, WithName("any"))
 	assert.Nil(t, err)
@@ -63,6 +66,54 @@ func TestCacheTake(t *testing.T) {
 	assert.Equal(t, int32(1), atomic.LoadInt32(&count))
 }
 
+func TestCacheTakeExists(t *testing.T) {
+	cache, err := NewCache(time.Second * 2)
+	assert.Nil(t, err)
+
+	var count int32
+	var wg sync.WaitGroup
+	for i := 0; i < 100; i++ {
+		wg.Add(1)
+		go func() {
+			cache.Set("first", "first element")
+			cache.Take("first", func() (interface{}, error) {
+				atomic.AddInt32(&count, 1)
+				time.Sleep(time.Millisecond * 100)
+				return "first element", nil
+			})
+			wg.Done()
+		}()
+	}
+	wg.Wait()
+
+	assert.Equal(t, 1, cache.size())
+	assert.Equal(t, int32(0), atomic.LoadInt32(&count))
+}
+
+func TestCacheTakeError(t *testing.T) {
+	cache, err := NewCache(time.Second * 2)
+	assert.Nil(t, err)
+
+	var count int32
+	var wg sync.WaitGroup
+	for i := 0; i < 100; i++ {
+		wg.Add(1)
+		go func() {
+			_, err := cache.Take("first", func() (interface{}, error) {
+				atomic.AddInt32(&count, 1)
+				time.Sleep(time.Millisecond * 100)
+				return "", errDummy
+			})
+			assert.Equal(t, errDummy, err)
+			wg.Done()
+		}()
+	}
+	wg.Wait()
+
+	assert.Equal(t, 0, cache.size())
+	assert.Equal(t, int32(1), atomic.LoadInt32(&count))
+}
+
 func TestCacheWithLruEvicts(t *testing.T) {
 	cache, err := NewCache(time.Minute, WithLimit(3))
 	assert.Nil(t, err)

core/collection/ring.go

@@ -6,6 +6,10 @@ type Ring struct {
 }
 
 func NewRing(n int) *Ring {
+	if n < 1 {
+		panic("n should be greater than 0")
+	}
+
 	return &Ring{
 		elements: make([]interface{}, n),
 	}

core/collection/ring_test.go

@@ -6,6 +6,12 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func TestNewRing(t *testing.T) {
+	assert.Panics(t, func() {
+		NewRing(0)
+	})
+}
+
 func TestRingLess(t *testing.T) {
 	ring := NewRing(5)
 	for i := 0; i < 3; i++ {

core/collection/rollingwindow.go

@@ -22,6 +22,10 @@ type (
 )
 
 func NewRollingWindow(size int, interval time.Duration, opts ...RollingWindowOption) *RollingWindow {
+	if size < 1 {
+		panic("size must be greater than 0")
+	}
+
 	w := &RollingWindow{
 		size:     size,
 		win:      newWindow(size),

core/collection/rollingwindow_test.go

@@ -11,6 +11,13 @@ import (
 
 const duration = time.Millisecond * 50
 
+func TestNewRollingWindow(t *testing.T) {
+	assert.NotNil(t, NewRollingWindow(10, time.Second))
+	assert.Panics(t, func() {
+		NewRollingWindow(0, time.Second)
+	})
+}
+
 func TestRollingWindowAdd(t *testing.T) {
 	const size = 3
 	r := NewRollingWindow(size, duration)
@@ -81,7 +88,7 @@ func TestRollingWindowReduce(t *testing.T) {
 	for _, test := range tests {
 		t.Run(stringx.Rand(), func(t *testing.T) {
 			r := test.win
-			for x := 0; x < size; x = x + 1 {
+			for x := 0; x < size; x++ {
 				for i := 0; i <= x; i++ {
 					r.Add(float64(i))
 				}

core/collection/set.go

@@ -15,6 +15,7 @@ const (
 	stringType
 )
 
+// Set is not thread-safe, for concurrent use, make sure to use it with synchronization.
 type Set struct {
 	data map[interface{}]lang.PlaceholderType
 	tp   int
@@ -182,10 +183,7 @@ func (s *Set) add(i interface{}) {
 }
 
 func (s *Set) setType(i interface{}) {
-	if s.tp != untyped {
-		return
-	}
-
+	// s.tp can only be untyped here
 	switch i.(type) {
 	case int:
 		s.tp = intType

core/collection/set_test.go

@@ -5,8 +5,13 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/logx"
 )
 
+func init() {
+	logx.Disable()
+}
+
 func BenchmarkRawSet(b *testing.B) {
 	m := make(map[interface{}]struct{})
 	for i := 0; i < b.N; i++ {
@@ -147,3 +152,51 @@ func TestCount(t *testing.T) {
 	// then
 	assert.Equal(t, set.Count(), 3)
 }
+
+func TestKeysIntMismatch(t *testing.T) {
+	set := NewSet()
+	set.add(int64(1))
+	set.add(2)
+	vals := set.KeysInt()
+	assert.EqualValues(t, []int{2}, vals)
+}
+
+func TestKeysInt64Mismatch(t *testing.T) {
+	set := NewSet()
+	set.add(1)
+	set.add(int64(2))
+	vals := set.KeysInt64()
+	assert.EqualValues(t, []int64{2}, vals)
+}
+
+func TestKeysUintMismatch(t *testing.T) {
+	set := NewSet()
+	set.add(1)
+	set.add(uint(2))
+	vals := set.KeysUint()
+	assert.EqualValues(t, []uint{2}, vals)
+}
+
+func TestKeysUint64Mismatch(t *testing.T) {
+	set := NewSet()
+	set.add(1)
+	set.add(uint64(2))
+	vals := set.KeysUint64()
+	assert.EqualValues(t, []uint64{2}, vals)
+}
+
+func TestKeysStrMismatch(t *testing.T) {
+	set := NewSet()
+	set.add(1)
+	set.add("2")
+	vals := set.KeysStr()
+	assert.EqualValues(t, []string{"2"}, vals)
+}
+
+func TestSetType(t *testing.T) {
+	set := NewUnmanagedSet()
+	set.add(1)
+	set.add("2")
+	vals := set.Keys()
+	assert.ElementsMatch(t, []interface{}{1, "2"}, vals)
+}

core/conf/config_test.go

@@ -0,0 +1,58 @@
+package conf
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/hash"
+)
+
+func TestConfigJson(t *testing.T) {
+	tests := []string{
+		".json",
+		".yaml",
+		".yml",
+	}
+	text := `{
+	"a": "foo",
+	"b": 1
+}`
+	for _, test := range tests {
+		test := test
+		t.Run(test, func(t *testing.T) {
+			t.Parallel()
+
+			tmpfile, err := createTempFile(test, text)
+			assert.Nil(t, err)
+			defer os.Remove(tmpfile)
+
+			var val struct {
+				A string `json:"a"`
+				B int    `json:"b"`
+			}
+			MustLoad(tmpfile, &val)
+			assert.Equal(t, "foo", val.A)
+			assert.Equal(t, 1, val.B)
+		})
+	}
+}
+
+func createTempFile(ext, text string) (string, error) {
+	tmpfile, err := ioutil.TempFile(os.TempDir(), hash.Md5Hex([]byte(text))+"*"+ext)
+	if err != nil {
+		return "", err
+	}
+
+	if err := ioutil.WriteFile(tmpfile.Name(), []byte(text), os.ModeTemporary); err != nil {
+		return "", err
+	}
+
+	filename := tmpfile.Name()
+	if err = tmpfile.Close(); err != nil {
+		return "", err
+	}
+
+	return filename, nil
+}

core/conf/properties.go

@@ -30,12 +30,12 @@ type mapBasedProperties struct {
 	lock       sync.RWMutex
 }
 
-// Loads the properties into a properties configuration instance. May return the
-// configuration itself along with an error that indicates if there was a problem loading the configuration.
+// Loads the properties into a properties configuration instance.
+// Returns an error that indicates if there was a problem loading the configuration.
 func LoadProperties(filename string) (Properties, error) {
 	lines, err := iox.ReadTextLines(filename, iox.WithoutBlank(), iox.OmitWithPrefix("#"))
 	if err != nil {
-		return nil, nil
+		return nil, err
 	}
 
 	raw := make(map[string]string)

core/conf/properties_test.go

@@ -41,3 +41,8 @@ func TestSetInt(t *testing.T) {
 	props.SetInt(key, value)
 	assert.Equal(t, value, props.GetInt(key))
 }
+
+func TestLoadBadFile(t *testing.T) {
+	_, err := LoadProperties("nosuchfile")
+	assert.NotNil(t, err)
+}

core/contextx/deadline_test.go

@@ -10,8 +10,10 @@ import (
 
 func TestShrinkDeadlineLess(t *testing.T) {
 	deadline := time.Now().Add(time.Second)
-	ctx, _ := context.WithDeadline(context.Background(), deadline)
-	ctx, _ = ShrinkDeadline(ctx, time.Minute)
+	ctx, cancel := context.WithDeadline(context.Background(), deadline)
+	defer cancel()
+	ctx, cancel = ShrinkDeadline(ctx, time.Minute)
+	defer cancel()
 	dl, ok := ctx.Deadline()
 	assert.True(t, ok)
 	assert.Equal(t, deadline, dl)
@@ -19,8 +21,10 @@ func TestShrinkDeadlineLess(t *testing.T) {
 
 func TestShrinkDeadlineMore(t *testing.T) {
 	deadline := time.Now().Add(time.Minute)
-	ctx, _ := context.WithDeadline(context.Background(), deadline)
-	ctx, _ = ShrinkDeadline(ctx, time.Second)
+	ctx, cancel := context.WithDeadline(context.Background(), deadline)
+	defer cancel()
+	ctx, cancel = ShrinkDeadline(ctx, time.Second)
+	defer cancel()
 	dl, ok := ctx.Deadline()
 	assert.True(t, ok)
 	assert.True(t, dl.Before(deadline))

core/contextx/valueonlycontext_test.go

@@ -12,7 +12,8 @@ func TestContextCancel(t *testing.T) {
 	c := context.WithValue(context.Background(), "key", "value")
 	c1, cancel := context.WithCancel(c)
 	o := ValueOnlyFrom(c1)
-	c2, _ := context.WithCancel(o)
+	c2, cancel2 := context.WithCancel(o)
+	defer cancel2()
 	contexts := []context.Context{c1, c2}
 
 	for _, c := range contexts {
@@ -35,7 +36,8 @@ func TestContextCancel(t *testing.T) {
 }
 
 func TestContextDeadline(t *testing.T) {
-	c, _ := context.WithDeadline(context.Background(), time.Now().Add(10*time.Millisecond))
+	c, cancel := context.WithDeadline(context.Background(), time.Now().Add(10*time.Millisecond))
+	cancel()
 	o := ValueOnlyFrom(c)
 	select {
 	case <-time.After(100 * time.Millisecond):
@@ -43,9 +45,11 @@ func TestContextDeadline(t *testing.T) {
 		t.Fatal("ValueOnlyContext: context should not have timed out")
 	}
 
-	c, _ = context.WithDeadline(context.Background(), time.Now().Add(10*time.Millisecond))
+	c, cancel = context.WithDeadline(context.Background(), time.Now().Add(10*time.Millisecond))
+	cancel()
 	o = ValueOnlyFrom(c)
-	c, _ = context.WithDeadline(o, time.Now().Add(20*time.Millisecond))
+	c, cancel = context.WithDeadline(o, time.Now().Add(20*time.Millisecond))
+	defer cancel()
 	select {
 	case <-time.After(100 * time.Millisecond):
 		t.Fatal("ValueOnlyContext+Deadline: context should have timed out")

core/discov/clients.go

@@ -8,7 +8,7 @@ import (
 )
 
 const (
-	indexOfKey = iota
+	_ = iota
 	indexOfId
 )
 

core/discov/internal/listener.go

@@ -1,4 +1,3 @@
-//go:generate mockgen -package internal -destination listener_mock.go -source listener.go Listener
 package internal
 
 type Listener interface {

core/discov/internal/listener_mock.go

@@ -1,45 +0,0 @@
-// Code generated by MockGen. DO NOT EDIT.
-// Source: listener.go
-
-// Package internal is a generated GoMock package.
-package internal
-
-import (
-	gomock "github.com/golang/mock/gomock"
-	reflect "reflect"
-)
-
-// MockListener is a mock of Listener interface
-type MockListener struct {
-	ctrl     *gomock.Controller
-	recorder *MockListenerMockRecorder
-}
-
-// MockListenerMockRecorder is the mock recorder for MockListener
-type MockListenerMockRecorder struct {
-	mock *MockListener
-}
-
-// NewMockListener creates a new mock instance
-func NewMockListener(ctrl *gomock.Controller) *MockListener {
-	mock := &MockListener{ctrl: ctrl}
-	mock.recorder = &MockListenerMockRecorder{mock}
-	return mock
-}
-
-// EXPECT returns an object that allows the caller to indicate expected use
-func (m *MockListener) EXPECT() *MockListenerMockRecorder {
-	return m.recorder
-}
-
-// OnUpdate mocks base method
-func (m *MockListener) OnUpdate(keys, values []string, newKey string) {
-	m.ctrl.T.Helper()
-	m.ctrl.Call(m, "OnUpdate", keys, values, newKey)
-}
-
-// OnUpdate indicates an expected call of OnUpdate
-func (mr *MockListenerMockRecorder) OnUpdate(keys, values, newKey interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "OnUpdate", reflect.TypeOf((*MockListener)(nil).OnUpdate), keys, values, newKey)
-}

core/discov/kubernetes/etcd.yaml

@@ -40,6 +40,7 @@ spec:
         - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
         - --initial-cluster-state
         - new
+        - --auto-compaction-retention=1
       image: quay.io/coreos/etcd:latest
       name: etcd0
       ports:
@@ -111,6 +112,7 @@ spec:
         - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
         - --initial-cluster-state
         - new
+        - --auto-compaction-retention=1
       image: quay.io/coreos/etcd:latest
       name: etcd1
       ports:
@@ -182,6 +184,7 @@ spec:
         - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
         - --initial-cluster-state
         - new
+        - --auto-compaction-retention=1
       image: quay.io/coreos/etcd:latest
       name: etcd2
       ports:
@@ -253,6 +256,7 @@ spec:
         - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
         - --initial-cluster-state
         - new
+        - --auto-compaction-retention=1
       image: quay.io/coreos/etcd:latest
       name: etcd3
       ports:
@@ -324,6 +328,7 @@ spec:
         - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
         - --initial-cluster-state
         - new
+        - --auto-compaction-retention=1
       image: quay.io/coreos/etcd:latest
       name: etcd4
       ports:

core/discov/publisher_test.go

@@ -111,6 +111,10 @@ func TestPublisher_keepAliveAsyncQuit(t *testing.T) {
 	defer ctrl.Finish()
 	const id clientv3.LeaseID = 1
 	cli := internal.NewMockEtcdClient(ctrl)
+	cli.EXPECT().ActiveConnection()
+	cli.EXPECT().Close()
+	defer cli.Close()
+	cli.ActiveConnection()
 	restore := setMockClient(cli)
 	defer restore()
 	cli.EXPECT().Ctx().AnyTimes()

core/errorx/atomicerror.go

@@ -1,21 +1,18 @@
 package errorx
 
-import "sync"
+import "sync/atomic"
 
 type AtomicError struct {
-	err  error
-	lock sync.Mutex
+	err atomic.Value // error
 }
 
 func (ae *AtomicError) Set(err error) {
-	ae.lock.Lock()
-	ae.err = err
-	ae.lock.Unlock()
+	ae.err.Store(err)
 }
 
 func (ae *AtomicError) Load() error {
-	ae.lock.Lock()
-	err := ae.err
-	ae.lock.Unlock()
-	return err
+	if v := ae.err.Load(); v != nil {
+		return v.(error)
+	}
+	return nil
 }

core/errorx/atomicerror_test.go

@@ -2,6 +2,8 @@ package errorx
 
 import (
 	"errors"
+	"sync"
+	"sync/atomic"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -19,3 +21,53 @@ func TestAtomicErrorNil(t *testing.T) {
 	var err AtomicError
 	assert.Nil(t, err.Load())
 }
+
+func BenchmarkAtomicError(b *testing.B) {
+	var aerr AtomicError
+	wg := sync.WaitGroup{}
+
+	b.Run("Load", func(b *testing.B) {
+		var done uint32
+		go func() {
+			for {
+				if atomic.LoadUint32(&done) != 0 {
+					break
+				}
+				wg.Add(1)
+				go func() {
+					aerr.Set(errDummy)
+					wg.Done()
+				}()
+			}
+		}()
+		b.ResetTimer()
+		for i := 0; i < b.N; i++ {
+			_ = aerr.Load()
+		}
+		b.StopTimer()
+		atomic.StoreUint32(&done, 1)
+		wg.Wait()
+	})
+	b.Run("Set", func(b *testing.B) {
+		var done uint32
+		go func() {
+			for {
+				if atomic.LoadUint32(&done) != 0 {
+					break
+				}
+				wg.Add(1)
+				go func() {
+					_ = aerr.Load()
+					wg.Done()
+				}()
+			}
+		}()
+		b.ResetTimer()
+		for i := 0; i < b.N; i++ {
+			aerr.Set(errDummy)
+		}
+		b.StopTimer()
+		atomic.StoreUint32(&done, 1)
+		wg.Wait()
+	})
+}

core/errorx/callchain.go

@@ -0,0 +1,11 @@
+package errorx
+
+func Chain(fns ...func() error) error {
+	for _, fn := range fns {
+		if err := fn(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

core/errorx/callchain_test.go

@@ -0,0 +1,27 @@
+package errorx
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestChain(t *testing.T) {
+	var errDummy = errors.New("dummy")
+	assert.Nil(t, Chain(func() error {
+		return nil
+	}, func() error {
+		return nil
+	}))
+	assert.Equal(t, errDummy, Chain(func() error {
+		return errDummy
+	}, func() error {
+		return nil
+	}))
+	assert.Equal(t, errDummy, Chain(func() error {
+		return nil
+	}, func() error {
+		return errDummy
+	}))
+}

core/executors/bulkexecutor_test.go

@@ -86,9 +86,7 @@ func TestBuldExecutorFlushSlowTasks(t *testing.T) {
 		time.Sleep(time.Millisecond * 100)
 		lock.Lock()
 		defer lock.Unlock()
-		for _, i := range tasks {
-			result = append(result, i)
-		}
+		result = append(result, tasks...)
 	}, WithBulkTasks(1000))
 	for i := 0; i < total; i++ {
 		assert.Nil(t, exec.Add(i))

core/fx/fn.go

@@ -68,6 +68,7 @@ func Range(source <-chan interface{}) Stream {
 }
 
 // Buffer buffers the items into a queue with size n.
+// It can balance the producer and the consumer if their processing throughput don't match.
 func (p Stream) Buffer(n int) Stream {
 	if n < 0 {
 		n = 0
@@ -84,6 +85,14 @@ func (p Stream) Buffer(n int) Stream {
 	return Range(source)
 }
 
+// Count counts the number of elements in the result.
+func (p Stream) Count() (count int) {
+	for range p.source {
+		count++
+	}
+	return
+}
+
 // Distinct removes the duplicated items base on the given KeyFunc.
 func (p Stream) Distinct(fn KeyFunc) Stream {
 	source := make(chan interface{})
@@ -151,6 +160,10 @@ func (p Stream) Group(fn KeyFunc) Stream {
 }
 
 func (p Stream) Head(n int64) Stream {
+	if n < 1 {
+		panic("n must be greater than 0")
+	}
+
 	source := make(chan interface{})
 
 	go func() {
@@ -235,7 +248,37 @@ func (p Stream) Sort(less LessFunc) Stream {
 	return Just(items...)
 }
 
+// Split splits the elements into chunk with size up to n,
+// might be less than n on tailing elements.
+func (p Stream) Split(n int) Stream {
+	if n < 1 {
+		panic("n should be greater than 0")
+	}
+
+	source := make(chan interface{})
+	go func() {
+		var chunk []interface{}
+		for item := range p.source {
+			chunk = append(chunk, item)
+			if len(chunk) == n {
+				source <- chunk
+				chunk = nil
+			}
+		}
+		if chunk != nil {
+			source <- chunk
+		}
+		close(source)
+	}()
+
+	return Range(source)
+}
+
 func (p Stream) Tail(n int64) Stream {
+	if n < 1 {
+		panic("n should be greater than 0")
+	}
+
 	source := make(chan interface{})
 
 	go func() {

core/fx/fn_test.go

@@ -49,6 +49,36 @@ func TestBufferNegative(t *testing.T) {
 	assert.Equal(t, 10, result)
 }
 
+func TestCount(t *testing.T) {
+	tests := []struct {
+		name     string
+		elements []interface{}
+	}{
+		{
+			name: "no elements with nil",
+		},
+		{
+			name:     "no elements",
+			elements: []interface{}{},
+		},
+		{
+			name:     "1 element",
+			elements: []interface{}{1},
+		},
+		{
+			name:     "multiple elements",
+			elements: []interface{}{1, 2, 3},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			val := Just(test.elements...).Count()
+			assert.Equal(t, len(test.elements), val)
+		})
+	}
+}
+
 func TestDone(t *testing.T) {
 	var count int32
 	Just(1, 2, 3).Walk(func(item interface{}, pipe chan<- interface{}) {
@@ -139,6 +169,14 @@ func TestHead(t *testing.T) {
 	assert.Equal(t, 3, result)
 }
 
+func TestHeadZero(t *testing.T) {
+	assert.Panics(t, func() {
+		Just(1, 2, 3, 4).Head(0).Reduce(func(pipe <-chan interface{}) (interface{}, error) {
+			return nil, nil
+		})
+	})
+}
+
 func TestHeadMore(t *testing.T) {
 	var result int
 	Just(1, 2, 3, 4).Head(6).Reduce(func(pipe <-chan interface{}) (interface{}, error) {
@@ -245,6 +283,22 @@ func TestSort(t *testing.T) {
 	})
 }
 
+func TestSplit(t *testing.T) {
+	assert.Panics(t, func() {
+		Just(1, 2, 3, 4, 5, 6, 7, 8, 9, 10).Split(0).Done()
+	})
+	var chunks [][]interface{}
+	Just(1, 2, 3, 4, 5, 6, 7, 8, 9, 10).Split(4).ForEach(func(item interface{}) {
+		chunk := item.([]interface{})
+		chunks = append(chunks, chunk)
+	})
+	assert.EqualValues(t, [][]interface{}{
+		{1, 2, 3, 4},
+		{5, 6, 7, 8},
+		{9, 10},
+	}, chunks)
+}
+
 func TestTail(t *testing.T) {
 	var result int
 	Just(1, 2, 3, 4).Tail(2).Reduce(func(pipe <-chan interface{}) (interface{}, error) {
@@ -256,6 +310,14 @@ func TestTail(t *testing.T) {
 	assert.Equal(t, 7, result)
 }
 
+func TestTailZero(t *testing.T) {
+	assert.Panics(t, func() {
+		Just(1, 2, 3, 4).Tail(0).Reduce(func(pipe <-chan interface{}) (interface{}, error) {
+			return nil, nil
+		})
+	})
+}
+
 func TestWalk(t *testing.T) {
 	var result int
 	Just(1, 2, 3, 4, 5).Walk(func(item interface{}, pipe chan<- interface{}) {

core/iox/pipe.go

@@ -0,0 +1,23 @@
+package iox
+
+import "os"
+
+// RedirectInOut redirects stdin to r, stdout to w, and callers need to call restore afterwards.
+func RedirectInOut() (restore func(), err error) {
+	var r, w *os.File
+	r, w, err = os.Pipe()
+	if err != nil {
+		return
+	}
+
+	ow := os.Stdout
+	os.Stdout = w
+	or := os.Stdin
+	os.Stdin = r
+	restore = func() {
+		os.Stdin = or
+		os.Stdout = ow
+	}
+
+	return
+}

core/iox/pipe_test.go

@@ -0,0 +1,13 @@
+package iox
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRedirectInOut(t *testing.T) {
+	restore, err := RedirectInOut()
+	assert.Nil(t, err)
+	defer restore()
+}

core/limit/tokenlimit.go

@@ -153,13 +153,10 @@ func (lim *TokenLimiter) waitForRedis() {
 		lim.rescueLock.Unlock()
 	}()
 
-	for {
-		select {
-		case <-ticker.C:
-			if lim.store.Ping() {
-				atomic.StoreUint32(&lim.redisAlive, 1)
-				return
-			}
+	for range ticker.C {
+		if lim.store.Ping() {
+			atomic.StoreUint32(&lim.redisAlive, 1)
+			return
 		}
 	}
 }

core/load/adaptiveshedder_test.go

@@ -135,6 +135,7 @@ func TestAdaptiveShedderShouldDrop(t *testing.T) {
 		passCounter:     passCounter,
 		rtCounter:       rtCounter,
 		windows:         buckets,
+		dropTime:        syncx.NewAtomicDuration(),
 		droppedRecently: syncx.NewAtomicBool(),
 	}
 	// cpu >=  800, inflight < maxPass
@@ -160,6 +161,40 @@ func TestAdaptiveShedderShouldDrop(t *testing.T) {
 	}
 	shedder.avgFlying = 80
 	assert.False(t, shedder.shouldDrop())
+
+	// cpu >=  800, inflight < maxPass
+	systemOverloadChecker = func(int64) bool {
+		return true
+	}
+	shedder.avgFlying = 80
+	shedder.flying = 80
+	_, err := shedder.Allow()
+	assert.NotNil(t, err)
+}
+
+func TestAdaptiveShedderStillHot(t *testing.T) {
+	logx.Disable()
+	passCounter := newRollingWindow()
+	rtCounter := newRollingWindow()
+	for i := 0; i < 10; i++ {
+		if i > 0 {
+			time.Sleep(bucketDuration)
+		}
+		passCounter.Add(float64((i + 1) * 100))
+		for j := i*10 + 1; j <= i*10+10; j++ {
+			rtCounter.Add(float64(j))
+		}
+	}
+	shedder := &adaptiveShedder{
+		passCounter:     passCounter,
+		rtCounter:       rtCounter,
+		windows:         buckets,
+		dropTime:        syncx.NewAtomicDuration(),
+		droppedRecently: syncx.ForAtomicBool(true),
+	}
+	assert.False(t, shedder.stillHot())
+	shedder.dropTime.Set(-coolOffDuration * 2)
+	assert.False(t, shedder.stillHot())
 }
 
 func BenchmarkAdaptiveShedder_Allow(b *testing.B) {

core/load/sheddergroup_test.go

@@ -13,3 +13,8 @@ func TestGroup(t *testing.T) {
 		assert.NotNil(t, limiter)
 	})
 }
+
+func TestShedderClose(t *testing.T) {
+	var nop nopCloser
+	assert.Nil(t, nop.Close())
+}

core/logx/durationlogger.go

@@ -8,55 +8,60 @@ import (
 	"github.com/tal-tech/go-zero/core/timex"
 )
 
-const customCallerDepth = 3
+const durationCallerDepth = 3
 
-type customLog logEntry
+type durationLogger logEntry
 
 func WithDuration(d time.Duration) Logger {
-	return customLog{
+	return &durationLogger{
 		Duration: timex.ReprOfDuration(d),
 	}
 }
 
-func (l customLog) Error(v ...interface{}) {
+func (l *durationLogger) Error(v ...interface{}) {
 	if shouldLog(ErrorLevel) {
-		l.write(errorLog, levelError, formatWithCaller(fmt.Sprint(v...), customCallerDepth))
+		l.write(errorLog, levelError, formatWithCaller(fmt.Sprint(v...), durationCallerDepth))
 	}
 }
 
-func (l customLog) Errorf(format string, v ...interface{}) {
+func (l *durationLogger) Errorf(format string, v ...interface{}) {
 	if shouldLog(ErrorLevel) {
-		l.write(errorLog, levelError, formatWithCaller(fmt.Sprintf(format, v...), customCallerDepth))
+		l.write(errorLog, levelError, formatWithCaller(fmt.Sprintf(format, v...), durationCallerDepth))
 	}
 }
 
-func (l customLog) Info(v ...interface{}) {
+func (l *durationLogger) Info(v ...interface{}) {
 	if shouldLog(InfoLevel) {
 		l.write(infoLog, levelInfo, fmt.Sprint(v...))
 	}
 }
 
-func (l customLog) Infof(format string, v ...interface{}) {
+func (l *durationLogger) Infof(format string, v ...interface{}) {
 	if shouldLog(InfoLevel) {
 		l.write(infoLog, levelInfo, fmt.Sprintf(format, v...))
 	}
 }
 
-func (l customLog) Slow(v ...interface{}) {
+func (l *durationLogger) Slow(v ...interface{}) {
 	if shouldLog(ErrorLevel) {
 		l.write(slowLog, levelSlow, fmt.Sprint(v...))
 	}
 }
 
-func (l customLog) Slowf(format string, v ...interface{}) {
+func (l *durationLogger) Slowf(format string, v ...interface{}) {
 	if shouldLog(ErrorLevel) {
 		l.write(slowLog, levelSlow, fmt.Sprintf(format, v...))
 	}
 }
 
-func (l customLog) write(writer io.Writer, level, content string) {
+func (l *durationLogger) WithDuration(duration time.Duration) Logger {
+	l.Duration = timex.ReprOfDuration(duration)
+	return l
+}
+
+func (l *durationLogger) write(writer io.Writer, level, content string) {
 	l.Timestamp = getTimestamp()
 	l.Level = level
 	l.Content = content
-	outputJson(writer, logEntry(l))
+	outputJson(writer, logEntry(*l))
 }

core/logx/durationlogger_test.go

@@ -0,0 +1,52 @@
+package logx
+
+import (
+	"log"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestWithDurationError(t *testing.T) {
+	var builder strings.Builder
+	log.SetOutput(&builder)
+	WithDuration(time.Second).Error("foo")
+	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+}
+
+func TestWithDurationErrorf(t *testing.T) {
+	var builder strings.Builder
+	log.SetOutput(&builder)
+	WithDuration(time.Second).Errorf("foo")
+	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+}
+
+func TestWithDurationInfo(t *testing.T) {
+	var builder strings.Builder
+	log.SetOutput(&builder)
+	WithDuration(time.Second).Info("foo")
+	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+}
+
+func TestWithDurationInfof(t *testing.T) {
+	var builder strings.Builder
+	log.SetOutput(&builder)
+	WithDuration(time.Second).Infof("foo")
+	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+}
+
+func TestWithDurationSlow(t *testing.T) {
+	var builder strings.Builder
+	log.SetOutput(&builder)
+	WithDuration(time.Second).Slow("foo")
+	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+}
+
+func TestWithDurationSlowf(t *testing.T) {
+	var builder strings.Builder
+	log.SetOutput(&builder)
+	WithDuration(time.Second).WithDuration(time.Hour).Slowf("foo")
+	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+}

core/logx/logs.go

@@ -15,6 +15,7 @@ import (
 	"strings"
 	"sync"
 	"sync/atomic"
+	"time"
 
 	"github.com/tal-tech/go-zero/core/iox"
 	"github.com/tal-tech/go-zero/core/sysx"
@@ -42,6 +43,7 @@ const (
 	consoleMode = "console"
 	volumeMode  = "volume"
 
+	levelAlert  = "alert"
 	levelInfo   = "info"
 	levelError  = "error"
 	levelSevere = "severe"
@@ -96,6 +98,7 @@ type (
 		Infof(string, ...interface{})
 		Slow(...interface{})
 		Slowf(string, ...interface{})
+		WithDuration(time.Duration) Logger
 	}
 )
 
@@ -119,6 +122,10 @@ func SetUp(c LogConf) error {
 	}
 }
 
+func Alert(v string) {
+	output(errorLog, levelAlert, v)
+}
+
 func Close() error {
 	if writeConsole {
 		return nil

core/logx/logs_test.go

@@ -6,8 +6,10 @@ import (
 	"io"
 	"io/ioutil"
 	"log"
+	"os"
 	"runtime"
 	"strings"
+	"sync"
 	"sync/atomic"
 	"testing"
 	"time"
@@ -21,10 +23,13 @@ var (
 )
 
 type mockWriter struct {
+	lock    sync.Mutex
 	builder strings.Builder
 }
 
 func (mw *mockWriter) Write(data []byte) (int, error) {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
 	return mw.builder.Write(data)
 }
 
@@ -32,12 +37,22 @@ func (mw *mockWriter) Close() error {
 	return nil
 }
 
+func (mw *mockWriter) Contains(text string) bool {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
+	return strings.Contains(mw.builder.String(), text)
+}
+
 func (mw *mockWriter) Reset() {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
 	mw.builder.Reset()
 }
 
-func (mw *mockWriter) Contains(text string) bool {
-	return strings.Contains(mw.builder.String(), text)
+func (mw *mockWriter) String() string {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
+	return mw.builder.String()
 }
 
 func TestFileLineFileMode(t *testing.T) {
@@ -69,6 +84,14 @@ func TestFileLineConsoleMode(t *testing.T) {
 	assert.True(t, writer.Contains(fmt.Sprintf("%s:%d", file, line+1)))
 }
 
+func TestStructedLogAlert(t *testing.T) {
+	doTestStructedLog(t, levelAlert, func(writer io.WriteCloser) {
+		errorLog = writer
+	}, func(v ...interface{}) {
+		Alert(fmt.Sprint(v...))
+	})
+}
+
 func TestStructedLogInfo(t *testing.T) {
 	doTestStructedLog(t, levelInfo, func(writer io.WriteCloser) {
 		infoLog = writer
@@ -85,6 +108,46 @@ func TestStructedLogSlow(t *testing.T) {
 	})
 }
 
+func TestStructedLogSlowf(t *testing.T) {
+	doTestStructedLog(t, levelSlow, func(writer io.WriteCloser) {
+		slowLog = writer
+	}, func(v ...interface{}) {
+		Slowf(fmt.Sprint(v...))
+	})
+}
+
+func TestStructedLogStat(t *testing.T) {
+	doTestStructedLog(t, levelStat, func(writer io.WriteCloser) {
+		statLog = writer
+	}, func(v ...interface{}) {
+		Stat(v...)
+	})
+}
+
+func TestStructedLogStatf(t *testing.T) {
+	doTestStructedLog(t, levelStat, func(writer io.WriteCloser) {
+		statLog = writer
+	}, func(v ...interface{}) {
+		Statf(fmt.Sprint(v...))
+	})
+}
+
+func TestStructedLogSevere(t *testing.T) {
+	doTestStructedLog(t, levelSevere, func(writer io.WriteCloser) {
+		severeLog = writer
+	}, func(v ...interface{}) {
+		Severe(v...)
+	})
+}
+
+func TestStructedLogSeveref(t *testing.T) {
+	doTestStructedLog(t, levelSevere, func(writer io.WriteCloser) {
+		severeLog = writer
+	}, func(v ...interface{}) {
+		Severef(fmt.Sprint(v...))
+	})
+}
+
 func TestStructedLogWithDuration(t *testing.T) {
 	const message = "hello there"
 	writer := new(mockWriter)
@@ -135,6 +198,68 @@ func TestMustNil(t *testing.T) {
 	Must(nil)
 }
 
+func TestSetup(t *testing.T) {
+	MustSetup(LogConf{
+		ServiceName: "any",
+		Mode:        "console",
+	})
+	MustSetup(LogConf{
+		ServiceName: "any",
+		Mode:        "file",
+		Path:        os.TempDir(),
+	})
+	MustSetup(LogConf{
+		ServiceName: "any",
+		Mode:        "volume",
+		Path:        os.TempDir(),
+	})
+	assert.NotNil(t, setupWithVolume(LogConf{}))
+	assert.NotNil(t, setupWithFiles(LogConf{}))
+	assert.Nil(t, setupWithFiles(LogConf{
+		ServiceName: "any",
+		Path:        os.TempDir(),
+		Compress:    true,
+		KeepDays:    1,
+	}))
+	setupLogLevel(LogConf{
+		Level: levelInfo,
+	})
+	setupLogLevel(LogConf{
+		Level: levelError,
+	})
+	setupLogLevel(LogConf{
+		Level: levelSevere,
+	})
+	_, err := createOutput("")
+	assert.NotNil(t, err)
+	Disable()
+}
+
+func TestDisable(t *testing.T) {
+	Disable()
+
+	var opt logOptions
+	WithKeepDays(1)(&opt)
+	WithGzip()(&opt)
+	assert.Nil(t, Close())
+	writeConsole = false
+	assert.Nil(t, Close())
+}
+
+func TestWithGzip(t *testing.T) {
+	fn := WithGzip()
+	var opt logOptions
+	fn(&opt)
+	assert.True(t, opt.gzipEnabled)
+}
+
+func TestWithKeepDays(t *testing.T) {
+	fn := WithKeepDays(1)
+	var opt logOptions
+	fn(&opt)
+	assert.Equal(t, 1, opt.keepDays)
+}
+
 func BenchmarkCopyByteSliceAppend(b *testing.B) {
 	for i := 0; i < b.N; i++ {
 		var buf []byte
@@ -232,7 +357,7 @@ func doTestStructedLog(t *testing.T, level string, setup func(writer io.WriteClo
 		t.Error(err)
 	}
 	assert.Equal(t, level, entry.Level)
-	assert.Equal(t, message, entry.Content)
+	assert.True(t, strings.Contains(entry.Content, message))
 }
 
 func testSetLevelTwiceWithMode(t *testing.T, mode string) {
@@ -252,4 +377,10 @@ func testSetLevelTwiceWithMode(t *testing.T, mode string) {
 	atomic.StoreUint32(&initialized, 1)
 	Info(message)
 	assert.Equal(t, 0, writer.builder.Len())
+	Infof(message)
+	assert.Equal(t, 0, writer.builder.Len())
+	ErrorStack(message)
+	assert.Equal(t, 0, writer.builder.Len())
+	ErrorStackf(message)
+	assert.Equal(t, 0, writer.builder.Len())
 }

core/logx/rotatelogger.go

@@ -192,14 +192,16 @@ func (l *RotateLogger) init() error {
 }
 
 func (l *RotateLogger) maybeCompressFile(file string) {
-	if l.compress {
-		defer func() {
-			if r := recover(); r != nil {
-				ErrorStack(r)
-			}
-		}()
-		compressLogFile(file)
+	if !l.compress {
+		return
 	}
+
+	defer func() {
+		if r := recover(); r != nil {
+			ErrorStack(r)
+		}
+	}()
+	compressLogFile(file)
 }
 
 func (l *RotateLogger) maybeDeleteOutdatedFiles() {

core/logx/rotatelogger_test.go

@@ -0,0 +1,119 @@
+package logx
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/fs"
+)
+
+func TestDailyRotateRuleMarkRotated(t *testing.T) {
+	var rule DailyRotateRule
+	rule.MarkRotated()
+	assert.Equal(t, getNowDate(), rule.rotatedTime)
+}
+
+func TestDailyRotateRuleOutdatedFiles(t *testing.T) {
+	var rule DailyRotateRule
+	assert.Empty(t, rule.OutdatedFiles())
+	rule.days = 1
+	assert.Empty(t, rule.OutdatedFiles())
+	rule.gzip = true
+	assert.Empty(t, rule.OutdatedFiles())
+}
+
+func TestDailyRotateRuleShallRotate(t *testing.T) {
+	var rule DailyRotateRule
+	rule.rotatedTime = time.Now().Add(time.Hour * 24).Format(dateFormat)
+	assert.True(t, rule.ShallRotate())
+}
+
+func TestRotateLoggerClose(t *testing.T) {
+	filename, err := fs.TempFilenameWithText("foo")
+	assert.Nil(t, err)
+	if len(filename) > 0 {
+		defer os.Remove(filename)
+	}
+	logger, err := NewLogger(filename, new(DailyRotateRule), false)
+	assert.Nil(t, err)
+	assert.Nil(t, logger.Close())
+}
+
+func TestRotateLoggerGetBackupFilename(t *testing.T) {
+	filename, err := fs.TempFilenameWithText("foo")
+	assert.Nil(t, err)
+	if len(filename) > 0 {
+		defer os.Remove(filename)
+	}
+	logger, err := NewLogger(filename, new(DailyRotateRule), false)
+	assert.Nil(t, err)
+	assert.True(t, len(logger.getBackupFilename()) > 0)
+	logger.backup = ""
+	assert.True(t, len(logger.getBackupFilename()) > 0)
+}
+
+func TestRotateLoggerMayCompressFile(t *testing.T) {
+	filename, err := fs.TempFilenameWithText("foo")
+	assert.Nil(t, err)
+	if len(filename) > 0 {
+		defer os.Remove(filename)
+	}
+	logger, err := NewLogger(filename, new(DailyRotateRule), false)
+	assert.Nil(t, err)
+	logger.maybeCompressFile(filename)
+	_, err = os.Stat(filename)
+	assert.Nil(t, err)
+}
+
+func TestRotateLoggerMayCompressFileTrue(t *testing.T) {
+	filename, err := fs.TempFilenameWithText("foo")
+	assert.Nil(t, err)
+	logger, err := NewLogger(filename, new(DailyRotateRule), true)
+	assert.Nil(t, err)
+	if len(filename) > 0 {
+		defer func() {
+			os.Remove(filename)
+			os.Remove(filepath.Base(logger.getBackupFilename()) + ".gz")
+		}()
+	}
+	logger.maybeCompressFile(filename)
+	_, err = os.Stat(filename)
+	assert.NotNil(t, err)
+}
+
+func TestRotateLoggerRotate(t *testing.T) {
+	filename, err := fs.TempFilenameWithText("foo")
+	assert.Nil(t, err)
+	logger, err := NewLogger(filename, new(DailyRotateRule), true)
+	assert.Nil(t, err)
+	if len(filename) > 0 {
+		defer func() {
+			os.Remove(filename)
+			os.Remove(logger.getBackupFilename())
+			os.Remove(filepath.Base(logger.getBackupFilename()) + ".gz")
+		}()
+	}
+	err = logger.rotate()
+	assert.Nil(t, err)
+}
+
+func TestRotateLoggerWrite(t *testing.T) {
+	filename, err := fs.TempFilenameWithText("foo")
+	assert.Nil(t, err)
+	rule := new(DailyRotateRule)
+	logger, err := NewLogger(filename, rule, true)
+	assert.Nil(t, err)
+	if len(filename) > 0 {
+		defer func() {
+			os.Remove(filename)
+			os.Remove(logger.getBackupFilename())
+			os.Remove(filepath.Base(logger.getBackupFilename()) + ".gz")
+		}()
+	}
+	logger.write([]byte(`foo`))
+	rule.rotatedTime = time.Now().Add(-time.Hour * 24).Format(dateFormat)
+	logger.write([]byte(`bar`))
+}

core/logx/syslog_test.go

@@ -15,7 +15,7 @@ const testlog = "Stay hungry, stay foolish."
 func TestCollectSysLog(t *testing.T) {
 	CollectSysLog()
 	content := getContent(captureOutput(func() {
-		log.Printf(testlog)
+		log.Print(testlog)
 	}))
 	assert.True(t, strings.Contains(content, testlog))
 }
@@ -33,10 +33,10 @@ func captureOutput(f func()) string {
 	writer := new(mockWriter)
 	infoLog = writer
 
-	prevLevel := logLevel
-	logLevel = InfoLevel
+	prevLevel := atomic.LoadUint32(&logLevel)
+	SetLevel(InfoLevel)
 	f()
-	logLevel = prevLevel
+	SetLevel(prevLevel)
 
 	return writer.builder.String()
 }

core/logx/tracelog_test.go

@@ -1,49 +0,0 @@
-package logx
-
-import (
-	"context"
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/trace/tracespec"
-)
-
-const (
-	mockTraceId = "mock-trace-id"
-	mockSpanId  = "mock-span-id"
-)
-
-var mock tracespec.Trace = new(mockTrace)
-
-func TestTraceLog(t *testing.T) {
-	var buf strings.Builder
-	ctx := context.WithValue(context.Background(), tracespec.TracingKey, mock)
-	WithContext(ctx).(tracingEntry).write(&buf, levelInfo, testlog)
-	assert.True(t, strings.Contains(buf.String(), mockTraceId))
-	assert.True(t, strings.Contains(buf.String(), mockSpanId))
-}
-
-type mockTrace struct{}
-
-func (t mockTrace) TraceId() string {
-	return mockTraceId
-}
-
-func (t mockTrace) SpanId() string {
-	return mockSpanId
-}
-
-func (t mockTrace) Finish() {
-}
-
-func (t mockTrace) Fork(ctx context.Context, serviceName, operationName string) (context.Context, tracespec.Trace) {
-	return nil, nil
-}
-
-func (t mockTrace) Follow(ctx context.Context, serviceName, operationName string) (context.Context, tracespec.Trace) {
-	return nil, nil
-}
-
-func (t mockTrace) Visit(fn func(key string, val string) bool) {
-}

core/logx/tracelogger.go

@@ -4,54 +4,61 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"time"
 
+	"github.com/tal-tech/go-zero/core/timex"
 	"github.com/tal-tech/go-zero/core/trace/tracespec"
 )
 
-type tracingEntry struct {
+type traceLogger struct {
 	logEntry
-	Trace string          `json:"trace,omitempty"`
-	Span  string          `json:"span,omitempty"`
-	ctx   context.Context `json:"-"`
+	Trace string `json:"trace,omitempty"`
+	Span  string `json:"span,omitempty"`
+	ctx   context.Context
 }
 
-func (l tracingEntry) Error(v ...interface{}) {
+func (l *traceLogger) Error(v ...interface{}) {
 	if shouldLog(ErrorLevel) {
-		l.write(errorLog, levelError, formatWithCaller(fmt.Sprint(v...), customCallerDepth))
+		l.write(errorLog, levelError, formatWithCaller(fmt.Sprint(v...), durationCallerDepth))
 	}
 }
 
-func (l tracingEntry) Errorf(format string, v ...interface{}) {
+func (l *traceLogger) Errorf(format string, v ...interface{}) {
 	if shouldLog(ErrorLevel) {
-		l.write(errorLog, levelError, formatWithCaller(fmt.Sprintf(format, v...), customCallerDepth))
+		l.write(errorLog, levelError, formatWithCaller(fmt.Sprintf(format, v...), durationCallerDepth))
 	}
 }
 
-func (l tracingEntry) Info(v ...interface{}) {
+func (l *traceLogger) Info(v ...interface{}) {
 	if shouldLog(InfoLevel) {
 		l.write(infoLog, levelInfo, fmt.Sprint(v...))
 	}
 }
 
-func (l tracingEntry) Infof(format string, v ...interface{}) {
+func (l *traceLogger) Infof(format string, v ...interface{}) {
 	if shouldLog(InfoLevel) {
 		l.write(infoLog, levelInfo, fmt.Sprintf(format, v...))
 	}
 }
 
-func (l tracingEntry) Slow(v ...interface{}) {
+func (l *traceLogger) Slow(v ...interface{}) {
 	if shouldLog(ErrorLevel) {
 		l.write(slowLog, levelSlow, fmt.Sprint(v...))
 	}
 }
 
-func (l tracingEntry) Slowf(format string, v ...interface{}) {
+func (l *traceLogger) Slowf(format string, v ...interface{}) {
 	if shouldLog(ErrorLevel) {
 		l.write(slowLog, levelSlow, fmt.Sprintf(format, v...))
 	}
 }
 
-func (l tracingEntry) write(writer io.Writer, level, content string) {
+func (l *traceLogger) WithDuration(duration time.Duration) Logger {
+	l.Duration = timex.ReprOfDuration(duration)
+	return l
+}
+
+func (l *traceLogger) write(writer io.Writer, level, content string) {
 	l.Timestamp = getTimestamp()
 	l.Level = level
 	l.Content = content
@@ -61,7 +68,7 @@ func (l tracingEntry) write(writer io.Writer, level, content string) {
 }
 
 func WithContext(ctx context.Context) Logger {
-	return tracingEntry{
+	return &traceLogger{
 		ctx: ctx,
 	}
 }

core/logx/tracelogger_test.go

@@ -0,0 +1,115 @@
+package logx
+
+import (
+	"context"
+	"log"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/trace/tracespec"
+)
+
+const (
+	mockTraceId = "mock-trace-id"
+	mockSpanId  = "mock-span-id"
+)
+
+var mock tracespec.Trace = new(mockTrace)
+
+func TestTraceLog(t *testing.T) {
+	var buf mockWriter
+	ctx := context.WithValue(context.Background(), tracespec.TracingKey, mock)
+	WithContext(ctx).(*traceLogger).write(&buf, levelInfo, testlog)
+	assert.True(t, strings.Contains(buf.String(), mockTraceId))
+	assert.True(t, strings.Contains(buf.String(), mockSpanId))
+}
+
+func TestTraceError(t *testing.T) {
+	var buf mockWriter
+	atomic.StoreUint32(&initialized, 1)
+	errorLog = newLogWriter(log.New(&buf, "", flags))
+	ctx := context.WithValue(context.Background(), tracespec.TracingKey, mock)
+	l := WithContext(ctx).(*traceLogger)
+	SetLevel(InfoLevel)
+	l.WithDuration(time.Second).Error(testlog)
+	assert.True(t, strings.Contains(buf.String(), mockTraceId))
+	assert.True(t, strings.Contains(buf.String(), mockSpanId))
+	buf.Reset()
+	l.WithDuration(time.Second).Errorf(testlog)
+	assert.True(t, strings.Contains(buf.String(), mockTraceId))
+	assert.True(t, strings.Contains(buf.String(), mockSpanId))
+}
+
+func TestTraceInfo(t *testing.T) {
+	var buf mockWriter
+	atomic.StoreUint32(&initialized, 1)
+	infoLog = newLogWriter(log.New(&buf, "", flags))
+	ctx := context.WithValue(context.Background(), tracespec.TracingKey, mock)
+	l := WithContext(ctx).(*traceLogger)
+	SetLevel(InfoLevel)
+	l.WithDuration(time.Second).Info(testlog)
+	assert.True(t, strings.Contains(buf.String(), mockTraceId))
+	assert.True(t, strings.Contains(buf.String(), mockSpanId))
+	buf.Reset()
+	l.WithDuration(time.Second).Infof(testlog)
+	assert.True(t, strings.Contains(buf.String(), mockTraceId))
+	assert.True(t, strings.Contains(buf.String(), mockSpanId))
+}
+
+func TestTraceSlow(t *testing.T) {
+	var buf mockWriter
+	atomic.StoreUint32(&initialized, 1)
+	slowLog = newLogWriter(log.New(&buf, "", flags))
+	ctx := context.WithValue(context.Background(), tracespec.TracingKey, mock)
+	l := WithContext(ctx).(*traceLogger)
+	SetLevel(InfoLevel)
+	l.WithDuration(time.Second).Slow(testlog)
+	assert.True(t, strings.Contains(buf.String(), mockTraceId))
+	assert.True(t, strings.Contains(buf.String(), mockSpanId))
+	buf.Reset()
+	l.WithDuration(time.Second).Slowf(testlog)
+	assert.True(t, strings.Contains(buf.String(), mockTraceId))
+	assert.True(t, strings.Contains(buf.String(), mockSpanId))
+}
+
+func TestTraceWithoutContext(t *testing.T) {
+	var buf mockWriter
+	atomic.StoreUint32(&initialized, 1)
+	infoLog = newLogWriter(log.New(&buf, "", flags))
+	l := WithContext(context.Background()).(*traceLogger)
+	SetLevel(InfoLevel)
+	l.WithDuration(time.Second).Info(testlog)
+	assert.False(t, strings.Contains(buf.String(), mockTraceId))
+	assert.False(t, strings.Contains(buf.String(), mockSpanId))
+	buf.Reset()
+	l.WithDuration(time.Second).Infof(testlog)
+	assert.False(t, strings.Contains(buf.String(), mockTraceId))
+	assert.False(t, strings.Contains(buf.String(), mockSpanId))
+}
+
+type mockTrace struct{}
+
+func (t mockTrace) TraceId() string {
+	return mockTraceId
+}
+
+func (t mockTrace) SpanId() string {
+	return mockSpanId
+}
+
+func (t mockTrace) Finish() {
+}
+
+func (t mockTrace) Fork(ctx context.Context, serviceName, operationName string) (context.Context, tracespec.Trace) {
+	return nil, nil
+}
+
+func (t mockTrace) Follow(ctx context.Context, serviceName, operationName string) (context.Context, tracespec.Trace) {
+	return nil, nil
+}
+
+func (t mockTrace) Visit(fn func(key string, val string) bool) {
+}

core/mapping/fieldoptions_test.go

@@ -0,0 +1,31 @@
+package mapping
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type Bar struct {
+	Val string `json:"val"`
+}
+
+func TestFieldOptionOptionalDep(t *testing.T) {
+	var bar Bar
+	rt := reflect.TypeOf(bar)
+	for i := 0; i < rt.NumField(); i++ {
+		field := rt.Field(i)
+		val, opt, err := parseKeyAndOptions(jsonTagKey, field)
+		assert.Equal(t, "val", val)
+		assert.Nil(t, opt)
+		assert.Nil(t, err)
+	}
+
+	// check nil working
+	var o *fieldOptions
+	check := func(o *fieldOptions) {
+		assert.Equal(t, 0, len(o.optionalDep()))
+	}
+	check(o)
+}

core/mapping/unmarshaler.go

@@ -23,6 +23,7 @@ const (
 var (
 	errTypeMismatch     = errors.New("type mismatch")
 	errValueNotSettable = errors.New("value is not settable")
+	errValueNotStruct   = errors.New("value type is not struct")
 	keyUnmarshaler      = NewUnmarshaler(defaultKeyName)
 	cacheKeys           atomic.Value
 	cacheKeysLock       sync.Mutex
@@ -80,6 +81,10 @@ func (u *Unmarshaler) unmarshalWithFullName(m Valuer, v interface{}, fullName st
 	}
 
 	rte := reflect.TypeOf(v).Elem()
+	if rte.Kind() != reflect.Struct {
+		return errValueNotStruct
+	}
+
 	rve := rv.Elem()
 	numFields := rte.NumField()
 	for i := 0; i < numFields; i++ {
@@ -345,7 +350,7 @@ func (u *Unmarshaler) processNamedFieldWithValue(field reflect.StructField, valu
 			options := opts.options()
 			if len(options) > 0 {
 				if !stringx.Contains(options, mapValue.(string)) {
-					return fmt.Errorf(`error: value "%s" for field "%s" is not defined in opts "%v"`,
+					return fmt.Errorf(`error: value "%s" for field "%s" is not defined in options "%v"`,
 						mapValue, key, options)
 				}
 			}

core/mapping/unmarshaler_test.go

@@ -14,6 +14,13 @@ import (
 // so we only can test to 62 bits.
 const maxUintBitsToTest = 62
 
+func TestUnmarshalWithFullNameNotStruct(t *testing.T) {
+	var s map[string]interface{}
+	content := []byte(`{"name":"xiaoming"}`)
+	err := UnmarshalJsonBytes(content, &s)
+	assert.Equal(t, errValueNotStruct, err)
+}
+
 func TestUnmarshalWithoutTagName(t *testing.T) {
 	type inner struct {
 		Optional bool `key:",optional"`
@@ -2380,6 +2387,13 @@ func TestUnmarshalNestedMapSimpleTypeMatch(t *testing.T) {
 	assert.Equal(t, "1", c.Anything["id"])
 }
 
+func TestUnmarshalValuer(t *testing.T) {
+	unmarshaler := NewUnmarshaler(jsonTagKey)
+	var foo string
+	err := unmarshaler.UnmarshalValuer(nil, foo)
+	assert.NotNil(t, err)
+}
+
 func BenchmarkUnmarshalString(b *testing.B) {
 	type inner struct {
 		Value string `key:"value"`

core/mathx/int_test.go

@@ -31,6 +31,7 @@ func TestMaxInt(t *testing.T) {
 	}
 
 	for _, each := range cases {
+		each := each
 		t.Run(stringx.Rand(), func(t *testing.T) {
 			actual := MaxInt(each.a, each.b)
 			assert.Equal(t, each.expect, actual)

core/mr/mapreduce.go

@@ -16,7 +16,10 @@ const (
 	minWorkers     = 1
 )
 
-var ErrCancelWithNil = errors.New("mapreduce cancelled with nil")
+var (
+	ErrCancelWithNil  = errors.New("mapreduce cancelled with nil")
+	ErrReduceNoOutput = errors.New("reduce not writing value")
+)
 
 type (
 	GenerateFunc    func(source chan<- interface{})
@@ -76,7 +79,7 @@ func Map(generate GenerateFunc, mapper MapFunc, opts ...Option) chan interface{}
 	collector := make(chan interface{}, options.workers)
 	done := syncx.NewDoneChan()
 
-	go mapDispatcher(mapper, source, collector, done.Done(), options.workers)
+	go executeMappers(mapper, source, collector, done.Done(), options.workers)
 
 	return collector
 }
@@ -93,7 +96,14 @@ func MapReduceWithSource(source <-chan interface{}, mapper MapperFunc, reducer R
 	collector := make(chan interface{}, options.workers)
 	done := syncx.NewDoneChan()
 	writer := newGuardedWriter(output, done.Done())
+	var closeOnce sync.Once
 	var retErr errorx.AtomicError
+	finish := func() {
+		closeOnce.Do(func() {
+			done.Close()
+			close(output)
+		})
+	}
 	cancel := once(func(err error) {
 		if err != nil {
 			retErr.Set(err)
@@ -102,19 +112,24 @@ func MapReduceWithSource(source <-chan interface{}, mapper MapperFunc, reducer R
 		}
 
 		drain(source)
-		done.Close()
-		close(output)
+		finish()
 	})
 
 	go func() {
 		defer func() {
 			if r := recover(); r != nil {
 				cancel(fmt.Errorf("%v", r))
+			} else {
+				finish()
 			}
 		}()
 		reducer(collector, writer, cancel)
+		drain(collector)
 	}()
-	go mapperDispatcher(mapper, source, collector, done.Done(), cancel, options.workers)
+
+	go executeMappers(func(item interface{}, w Writer) {
+		mapper(item, w, cancel)
+	}, source, collector, done.Done(), options.workers)
 
 	value, ok := <-output
 	if err := retErr.Load(); err != nil {
@@ -122,13 +137,14 @@ func MapReduceWithSource(source <-chan interface{}, mapper MapperFunc, reducer R
 	} else if ok {
 		return value, nil
 	} else {
-		return nil, nil
+		return nil, ErrReduceNoOutput
 	}
 }
 
 func MapReduceVoid(generator GenerateFunc, mapper MapperFunc, reducer VoidReducerFunc, opts ...Option) error {
 	_, err := MapReduce(generator, mapper, func(input <-chan interface{}, writer Writer, cancel func(error)) {
 		reducer(input, cancel)
+		drain(input)
 		// We need to write a placeholder to let MapReduce to continue on reducer done,
 		// otherwise, all goroutines are waiting. The placeholder will be discarded by MapReduce.
 		writer.Write(lang.Placeholder)
@@ -213,20 +229,6 @@ func executeMappers(mapper MapFunc, input <-chan interface{}, collector chan<- i
 	}
 }
 
-func mapDispatcher(mapper MapFunc, input <-chan interface{}, collector chan<- interface{},
-	done <-chan lang.PlaceholderType, workers int) {
-	executeMappers(func(item interface{}, writer Writer) {
-		mapper(item, writer)
-	}, input, collector, done, workers)
-}
-
-func mapperDispatcher(mapper MapperFunc, input <-chan interface{}, collector chan<- interface{},
-	done <-chan lang.PlaceholderType, cancel func(error), workers int) {
-	executeMappers(func(item interface{}, writer Writer) {
-		mapper(item, writer, cancel)
-	}, input, collector, done, workers)
-}
-
 func newOptions() *mapReduceOptions {
 	return &mapReduceOptions{
 		workers: defaultWorkers,

core/mr/mapreduce_test.go

@@ -378,6 +378,22 @@ func TestMapReduceVoidCancelWithRemains(t *testing.T) {
 	assert.True(t, done.True())
 }
 
+func TestMapReduceWithoutReducerWrite(t *testing.T) {
+	uids := []int{1, 2, 3}
+	res, err := MapReduce(func(source chan<- interface{}) {
+		for _, uid := range uids {
+			source <- uid
+		}
+	}, func(item interface{}, writer Writer, cancel func(error)) {
+		writer.Write(item)
+	}, func(pipe <-chan interface{}, writer Writer, cancel func(error)) {
+		drain(pipe)
+		// not calling writer.Write(...), should not panic
+	})
+	assert.Equal(t, ErrReduceNoOutput, err)
+	assert.Nil(t, res)
+}
+
 func BenchmarkMapReduce(b *testing.B) {
 	b.ReportAllocs()
 

core/proc/goroutines_test.go

@@ -0,0 +1,16 @@
+package proc
+
+import (
+	"log"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDumpGoroutines(t *testing.T) {
+	var buf strings.Builder
+	log.SetOutput(&buf)
+	dumpGoroutines()
+	assert.True(t, strings.Contains(buf.String(), ".dump"))
+}

core/proc/profile.go

@@ -26,10 +26,6 @@ var started uint32
 
 // Profile represents an active profiling session.
 type Profile struct {
-	// path holds the base path where various profiling files are  written.
-	// If blank, the base path will be generated by ioutil.TempDir.
-	path string
-
 	// closers holds cleanup functions that run after each profile
 	closers []func()
 

core/proc/profile_test.go

@@ -0,0 +1,21 @@
+package proc
+
+import (
+	"log"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestProfile(t *testing.T) {
+	var buf strings.Builder
+	log.SetOutput(&buf)
+	profiler := StartProfile()
+	// start again should not work
+	assert.NotNil(t, StartProfile())
+	profiler.Stop()
+	// stop twice
+	profiler.Stop()
+	assert.True(t, strings.Contains(buf.String(), ".pprof"))
+}

core/proc/shutdown.go

@@ -32,7 +32,7 @@ func AddWrapUpListener(fn func()) (waitForCalled func()) {
 	return wrapUpListeners.addListener(fn)
 }
 
-func SetTimeoutToForceQuit(duration time.Duration) {
+func SetTimeToForceQuit(duration time.Duration) {
 	delayTimeBeforeForceQuit = duration
 }
 

core/service/servicegroup_test.go

@@ -27,7 +27,7 @@ func newMockedService(multiplier int) *mockedService {
 
 func (s *mockedService) Start() {
 	mutex.Lock()
-	number = number * s.multiplier
+	number *= s.multiplier
 	mutex.Unlock()
 	done <- struct{}{}
 	<-s.quit

core/stat/alert.go

@@ -11,6 +11,7 @@ import (
 	"time"
 
 	"github.com/tal-tech/go-zero/core/executors"
+	"github.com/tal-tech/go-zero/core/logx"
 	"github.com/tal-tech/go-zero/core/proc"
 	"github.com/tal-tech/go-zero/core/sysx"
 	"github.com/tal-tech/go-zero/core/timex"
@@ -23,7 +24,7 @@ const (
 )
 
 var (
-	reporter     func(string)
+	reporter     = logx.Alert
 	lock         sync.RWMutex
 	lessExecutor = executors.NewLessExecutor(time.Minute * 5)
 	dropped      int32

core/stat/alert_test.go

@@ -0,0 +1,22 @@
+// +build linux
+
+package stat
+
+import (
+	"strconv"
+	"sync/atomic"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestReport(t *testing.T) {
+	var count int32
+	SetReporter(func(s string) {
+		atomic.AddInt32(&count, 1)
+	})
+	for i := 0; i < 10; i++ {
+		Report(strconv.Itoa(i))
+	}
+	assert.Equal(t, int32(1), count)
+}

core/stat/internal/cpu_linux.go

@@ -22,19 +22,30 @@ var (
 	cores     uint64
 )
 
+// if /proc not present, ignore the cpu calcuation, like wsl linux
 func init() {
 	cpus, err := perCpuUsage()
-	logx.Must(err)
-	cores = uint64(len(cpus))
+	if err != nil {
+		logx.Error(err)
+		return
+	}
 
+	cores = uint64(len(cpus))
 	sets, err := cpuSets()
-	logx.Must(err)
+	if err != nil {
+		logx.Error(err)
+		return
+	}
+
 	quota = float64(len(sets))
 	cq, err := cpuQuota()
 	if err == nil {
 		if cq != -1 {
 			period, err := cpuPeriod()
-			logx.Must(err)
+			if err != nil {
+				logx.Error(err)
+				return
+			}
 
 			limit := float64(cq) / float64(period)
 			if limit < quota {
@@ -44,10 +55,16 @@ func init() {
 	}
 
 	preSystem, err = systemCpuUsage()
-	logx.Must(err)
+	if err != nil {
+		logx.Error(err)
+		return
+	}
 
 	preTotal, err = totalCpuUsage()
-	logx.Must(err)
+	if err != nil {
+		logx.Error(err)
+		return
+	}
 }
 
 func RefreshCpu() uint64 {

core/stat/internal/cpu_linux_test.go

@@ -1,6 +1,14 @@
 package internal
 
-import "testing"
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRefreshCpu(t *testing.T) {
+	assert.True(t, RefreshCpu() >= 0)
+}
 
 func BenchmarkRefreshCpu(b *testing.B) {
 	for i := 0; i < b.N; i++ {

core/stat/metrics_test.go

@@ -0,0 +1,37 @@
+package stat
+
+import (
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMetrics(t *testing.T) {
+	counts := []int{1, 5, 10, 100, 1000, 1000}
+	for _, count := range counts {
+		m := NewMetrics("foo")
+		m.SetName("bar")
+		for i := 0; i < count; i++ {
+			m.Add(Task{
+				Duration:    time.Millisecond * time.Duration(i),
+				Description: strconv.Itoa(i),
+			})
+		}
+		m.AddDrop()
+		var writer mockedWriter
+		SetReportWriter(&writer)
+		m.executor.Flush()
+		assert.Equal(t, "bar", writer.report.Name)
+	}
+}
+
+type mockedWriter struct {
+	report *StatReport
+}
+
+func (m *mockedWriter) Write(report *StatReport) error {
+	m.report = report
+	return nil
+}

core/stat/remotewriter_test.go

@@ -0,0 +1,30 @@
+package stat
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"gopkg.in/h2non/gock.v1"
+)
+
+func TestRemoteWriter(t *testing.T) {
+	defer gock.Off()
+
+	gock.New("http://foo.com").Reply(200).BodyString("foo")
+	writer := NewRemoteWriter("http://foo.com")
+	err := writer.Write(&StatReport{
+		Name: "bar",
+	})
+	assert.Nil(t, err)
+}
+
+func TestRemoteWriterFail(t *testing.T) {
+	defer gock.Off()
+
+	gock.New("http://foo.com").Reply(503).BodyString("foo")
+	writer := NewRemoteWriter("http://foo.com")
+	err := writer.Write(&StatReport{
+		Name: "bar",
+	})
+	assert.NotNil(t, err)
+}

core/stores/cache/cache.go

@@ -1,4 +1,4 @@
-package internal
+package cache
 
 import (
 	"fmt"

core/stores/cache/cache_test.go

@@ -1,4 +1,4 @@
-package internal
+package cache
 
 import (
 	"encoding/json"
@@ -8,7 +8,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/alicebob/miniredis"
 	"github.com/stretchr/testify/assert"
 	"github.com/tal-tech/go-zero/core/errorx"
 	"github.com/tal-tech/go-zero/core/hash"
@@ -76,12 +75,12 @@ func (mc *mockedNode) TakeWithExpire(v interface{}, key string, query func(v int
 
 func TestCache_SetDel(t *testing.T) {
 	const total = 1000
-	r1 := miniredis.NewMiniRedis()
-	assert.Nil(t, r1.Start())
-	defer r1.Close()
-	r2 := miniredis.NewMiniRedis()
-	assert.Nil(t, r2.Start())
-	defer r2.Close()
+	r1, clean1, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean1()
+	r2, clean2, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean2()
 	conf := ClusterConf{
 		{
 			RedisConf: redis.RedisConf{
@@ -111,6 +110,45 @@ func TestCache_SetDel(t *testing.T) {
 		assert.Nil(t, c.GetCache(fmt.Sprintf("key/%d", i), &v))
 		assert.Equal(t, i, v)
 	}
+	assert.Nil(t, c.DelCache())
+	for i := 0; i < total; i++ {
+		assert.Nil(t, c.DelCache(fmt.Sprintf("key/%d", i)))
+	}
+	for i := 0; i < total; i++ {
+		var v int
+		assert.Equal(t, errPlaceholder, c.GetCache(fmt.Sprintf("key/%d", i), &v))
+		assert.Equal(t, 0, v)
+	}
+}
+
+func TestCache_OneNode(t *testing.T) {
+	const total = 1000
+	r, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
+	conf := ClusterConf{
+		{
+			RedisConf: redis.RedisConf{
+				Host: r.Addr(),
+				Type: redis.NodeType,
+			},
+			Weight: 100,
+		},
+	}
+	c := NewCache(conf, syncx.NewSharedCalls(), NewCacheStat("mock"), errPlaceholder)
+	for i := 0; i < total; i++ {
+		if i%2 == 0 {
+			assert.Nil(t, c.SetCache(fmt.Sprintf("key/%d", i), i))
+		} else {
+			assert.Nil(t, c.SetCacheWithExpire(fmt.Sprintf("key/%d", i), i, 0))
+		}
+	}
+	for i := 0; i < total; i++ {
+		var v int
+		assert.Nil(t, c.GetCache(fmt.Sprintf("key/%d", i), &v))
+		assert.Equal(t, i, v)
+	}
+	assert.Nil(t, c.DelCache())
 	for i := 0; i < total; i++ {
 		assert.Nil(t, c.DelCache(fmt.Sprintf("key/%d", i)))
 	}
@@ -188,6 +226,25 @@ func TestCache_Balance(t *testing.T) {
 	assert.Equal(t, total/10, count)
 }
 
+func TestCacheNoNode(t *testing.T) {
+	dispatcher := hash.NewConsistentHash()
+	c := cacheCluster{
+		dispatcher:  dispatcher,
+		errNotFound: errPlaceholder,
+	}
+	assert.NotNil(t, c.DelCache("foo"))
+	assert.NotNil(t, c.DelCache("foo", "bar", "any"))
+	assert.NotNil(t, c.GetCache("foo", nil))
+	assert.NotNil(t, c.SetCache("foo", nil))
+	assert.NotNil(t, c.SetCacheWithExpire("foo", nil, time.Second))
+	assert.NotNil(t, c.Take(nil, "foo", func(v interface{}) error {
+		return nil
+	}))
+	assert.NotNil(t, c.TakeWithExpire(nil, "foo", func(v interface{}, duration time.Duration) error {
+		return nil
+	}))
+}
+
 func calcEntropy(m map[int]int, total int) float64 {
 	var entropy float64
 

core/stores/cache/cacheconf.go

@@ -1,5 +1,3 @@
 package cache
 
-import "github.com/tal-tech/go-zero/core/stores/internal"
-
-type CacheConf = internal.ClusterConf
+type CacheConf = ClusterConf

core/stores/cache/cachenode.go

@@ -1,13 +1,13 @@
-package internal
+package cache
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"math/rand"
 	"sync"
 	"time"
 
+	"github.com/tal-tech/go-zero/core/jsonx"
 	"github.com/tal-tech/go-zero/core/logx"
 	"github.com/tal-tech/go-zero/core/mathx"
 	"github.com/tal-tech/go-zero/core/stat"
@@ -79,7 +79,7 @@ func (c cacheNode) SetCache(key string, v interface{}) error {
 }
 
 func (c cacheNode) SetCacheWithExpire(key string, v interface{}, expire time.Duration) error {
-	data, err := json.Marshal(v)
+	data, err := jsonx.Marshal(v)
 	if err != nil {
 		return err
 	}
@@ -168,7 +168,7 @@ func (c cacheNode) doTake(v interface{}, key string, query func(v interface{}) e
 			}
 		}
 
-		return json.Marshal(v)
+		return jsonx.Marshal(v)
 	})
 	if err != nil {
 		return err
@@ -181,11 +181,11 @@ func (c cacheNode) doTake(v interface{}, key string, query func(v interface{}) e
 		c.stat.IncrementHit()
 	}
 
-	return json.Unmarshal(val.([]byte), v)
+	return jsonx.Unmarshal(val.([]byte), v)
 }
 
 func (c cacheNode) processCache(key string, data string, v interface{}) error {
-	err := json.Unmarshal([]byte(data), v)
+	err := jsonx.Unmarshal([]byte(data), v)
 	if err == nil {
 		return nil
 	}

core/stores/cache/cachenode_test.go

@@ -0,0 +1,206 @@
+package cache
+
+import (
+	"errors"
+	"fmt"
+	"math/rand"
+	"strconv"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/alicebob/miniredis"
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/logx"
+	"github.com/tal-tech/go-zero/core/mathx"
+	"github.com/tal-tech/go-zero/core/stat"
+	"github.com/tal-tech/go-zero/core/stores/redis"
+	"github.com/tal-tech/go-zero/core/syncx"
+)
+
+var errTestNotFound = errors.New("not found")
+
+func init() {
+	logx.Disable()
+	stat.SetReporter(nil)
+}
+
+func TestCacheNode_DelCache(t *testing.T) {
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
+
+	cn := cacheNode{
+		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
+		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+		lock:           new(sync.Mutex),
+		unstableExpiry: mathx.NewUnstable(expiryDeviation),
+		stat:           NewCacheStat("any"),
+		errNotFound:    errTestNotFound,
+	}
+	assert.Nil(t, cn.DelCache())
+	assert.Nil(t, cn.DelCache([]string{}...))
+	assert.Nil(t, cn.DelCache(make([]string, 0)...))
+	cn.SetCache("first", "one")
+	assert.Nil(t, cn.DelCache("first"))
+	cn.SetCache("first", "one")
+	cn.SetCache("second", "two")
+	assert.Nil(t, cn.DelCache("first", "second"))
+}
+
+func TestCacheNode_InvalidCache(t *testing.T) {
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
+
+	cn := cacheNode{
+		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
+		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+		lock:           new(sync.Mutex),
+		unstableExpiry: mathx.NewUnstable(expiryDeviation),
+		stat:           NewCacheStat("any"),
+		errNotFound:    errTestNotFound,
+	}
+	s.Set("any", "value")
+	var str string
+	assert.NotNil(t, cn.GetCache("any", &str))
+	assert.Equal(t, "", str)
+	_, err = s.Get("any")
+	assert.Equal(t, miniredis.ErrKeyNotFound, err)
+}
+
+func TestCacheNode_Take(t *testing.T) {
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
+
+	cn := cacheNode{
+		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
+		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+		barrier:        syncx.NewSharedCalls(),
+		lock:           new(sync.Mutex),
+		unstableExpiry: mathx.NewUnstable(expiryDeviation),
+		stat:           NewCacheStat("any"),
+		errNotFound:    errTestNotFound,
+	}
+	var str string
+	err = cn.Take(&str, "any", func(v interface{}) error {
+		*v.(*string) = "value"
+		return nil
+	})
+	assert.Nil(t, err)
+	assert.Equal(t, "value", str)
+	assert.Nil(t, cn.GetCache("any", &str))
+	val, err := s.Get("any")
+	assert.Nil(t, err)
+	assert.Equal(t, `"value"`, val)
+}
+
+func TestCacheNode_TakeNotFound(t *testing.T) {
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
+
+	cn := cacheNode{
+		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
+		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+		barrier:        syncx.NewSharedCalls(),
+		lock:           new(sync.Mutex),
+		unstableExpiry: mathx.NewUnstable(expiryDeviation),
+		stat:           NewCacheStat("any"),
+		errNotFound:    errTestNotFound,
+	}
+	var str string
+	err = cn.Take(&str, "any", func(v interface{}) error {
+		return errTestNotFound
+	})
+	assert.Equal(t, errTestNotFound, err)
+	assert.Equal(t, errTestNotFound, cn.GetCache("any", &str))
+	val, err := s.Get("any")
+	assert.Nil(t, err)
+	assert.Equal(t, `*`, val)
+
+	s.Set("any", "*")
+	err = cn.Take(&str, "any", func(v interface{}) error {
+		return nil
+	})
+	assert.Equal(t, errTestNotFound, err)
+	assert.Equal(t, errTestNotFound, cn.GetCache("any", &str))
+
+	s.Del("any")
+	var errDummy = errors.New("dummy")
+	err = cn.Take(&str, "any", func(v interface{}) error {
+		return errDummy
+	})
+	assert.Equal(t, errDummy, err)
+}
+
+func TestCacheNode_TakeWithExpire(t *testing.T) {
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
+
+	cn := cacheNode{
+		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
+		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+		barrier:        syncx.NewSharedCalls(),
+		lock:           new(sync.Mutex),
+		unstableExpiry: mathx.NewUnstable(expiryDeviation),
+		stat:           NewCacheStat("any"),
+		errNotFound:    errors.New("any"),
+	}
+	var str string
+	err = cn.TakeWithExpire(&str, "any", func(v interface{}, expire time.Duration) error {
+		*v.(*string) = "value"
+		return nil
+	})
+	assert.Nil(t, err)
+	assert.Equal(t, "value", str)
+	assert.Nil(t, cn.GetCache("any", &str))
+	val, err := s.Get("any")
+	assert.Nil(t, err)
+	assert.Equal(t, `"value"`, val)
+}
+
+func TestCacheNode_String(t *testing.T) {
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
+
+	cn := cacheNode{
+		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
+		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+		barrier:        syncx.NewSharedCalls(),
+		lock:           new(sync.Mutex),
+		unstableExpiry: mathx.NewUnstable(expiryDeviation),
+		stat:           NewCacheStat("any"),
+		errNotFound:    errors.New("any"),
+	}
+	assert.Equal(t, s.Addr(), cn.String())
+}
+
+func TestCacheValueWithBigInt(t *testing.T) {
+	s, clean, err := createMiniRedis()
+	assert.Nil(t, err)
+	defer clean()
+
+	cn := cacheNode{
+		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
+		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+		barrier:        syncx.NewSharedCalls(),
+		lock:           new(sync.Mutex),
+		unstableExpiry: mathx.NewUnstable(expiryDeviation),
+		stat:           NewCacheStat("any"),
+		errNotFound:    errors.New("any"),
+	}
+
+	const (
+		key         = "key"
+		value int64 = 323427211229009810
+	)
+
+	assert.Nil(t, cn.SetCache(key, value))
+	var val interface{}
+	assert.Nil(t, cn.GetCache(key, &val))
+	assert.Equal(t, strconv.FormatInt(value, 10), fmt.Sprintf("%v", val))
+}

core/stores/cache/cacheopt.go

@@ -1,21 +1,45 @@
 package cache
 
-import (
-	"time"
+import "time"
 
-	"github.com/tal-tech/go-zero/core/stores/internal"
+const (
+	defaultExpiry         = time.Hour * 24 * 7
+	defaultNotFoundExpiry = time.Minute
 )
 
-type Option = internal.Option
+type (
+	Options struct {
+		Expiry         time.Duration
+		NotFoundExpiry time.Duration
+	}
+
+	Option func(o *Options)
+)
+
+func newOptions(opts ...Option) Options {
+	var o Options
+	for _, opt := range opts {
+		opt(&o)
+	}
+
+	if o.Expiry <= 0 {
+		o.Expiry = defaultExpiry
+	}
+	if o.NotFoundExpiry <= 0 {
+		o.NotFoundExpiry = defaultNotFoundExpiry
+	}
+
+	return o
+}
 
 func WithExpiry(expiry time.Duration) Option {
-	return func(o *internal.Options) {
+	return func(o *Options) {
 		o.Expiry = expiry
 	}
 }
 
 func WithNotFoundExpiry(expiry time.Duration) Option {
-	return func(o *internal.Options) {
+	return func(o *Options) {
 		o.NotFoundExpiry = expiry
 	}
 }

core/stores/cache/cachestat.go

@@ -1,4 +1,4 @@
-package internal
+package cache
 
 import (
 	"sync/atomic"
@@ -48,20 +48,17 @@ func (cs *CacheStat) statLoop() {
 	ticker := time.NewTicker(statInterval)
 	defer ticker.Stop()
 
-	for {
-		select {
-		case <-ticker.C:
-			total := atomic.SwapUint64(&cs.Total, 0)
-			if total == 0 {
-				continue
-			}
-
-			hit := atomic.SwapUint64(&cs.Hit, 0)
-			percent := 100 * float32(hit) / float32(total)
-			miss := atomic.SwapUint64(&cs.Miss, 0)
-			dbf := atomic.SwapUint64(&cs.DbFails, 0)
-			logx.Statf("dbcache(%s) - qpm: %d, hit_ratio: %.1f%%, hit: %d, miss: %d, db_fails: %d",
-				cs.name, total, percent, hit, miss, dbf)
+	for range ticker.C {
+		total := atomic.SwapUint64(&cs.Total, 0)
+		if total == 0 {
+			continue
 		}
+
+		hit := atomic.SwapUint64(&cs.Hit, 0)
+		percent := 100 * float32(hit) / float32(total)
+		miss := atomic.SwapUint64(&cs.Miss, 0)
+		dbf := atomic.SwapUint64(&cs.DbFails, 0)
+		logx.Statf("dbcache(%s) - qpm: %d, hit_ratio: %.1f%%, hit: %d, miss: %d, db_fails: %d",
+			cs.name, total, percent, hit, miss, dbf)
 	}
 }

core/stores/cache/cleaner.go

@@ -1,4 +1,4 @@
-package internal
+package cache
 
 import (
 	"fmt"

core/stores/cache/cleaner_test.go

@@ -0,0 +1,56 @@
+package cache
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNextDelay(t *testing.T) {
+	tests := []struct {
+		name   string
+		input  time.Duration
+		output time.Duration
+		ok     bool
+	}{
+		{
+			name:   "second",
+			input:  time.Second,
+			output: time.Second * 5,
+			ok:     true,
+		},
+		{
+			name:   "5 seconds",
+			input:  time.Second * 5,
+			output: time.Minute,
+			ok:     true,
+		},
+		{
+			name:   "minute",
+			input:  time.Minute,
+			output: time.Minute * 5,
+			ok:     true,
+		},
+		{
+			name:   "5 minutes",
+			input:  time.Minute * 5,
+			output: time.Hour,
+			ok:     true,
+		},
+		{
+			name:   "hour",
+			input:  time.Hour,
+			output: 0,
+			ok:     false,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			next, ok := nextDelay(test.input)
+			assert.Equal(t, test.ok, ok)
+			assert.Equal(t, test.output, next)
+		})
+	}
+}

core/stores/cache/config.go

@@ -1,4 +1,4 @@
-package internal
+package cache
 
 import "github.com/tal-tech/go-zero/core/stores/redis"
 

core/stores/cache/util.go

@@ -1,4 +1,4 @@
-package internal
+package cache
 
 import "strings"
 

core/stores/cache/util_test.go

@@ -0,0 +1,48 @@
+package cache
+
+import (
+	"testing"
+	"time"
+
+	"github.com/alicebob/miniredis"
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/lang"
+)
+
+func TestFormatKeys(t *testing.T) {
+	assert.Equal(t, "a,b", formatKeys([]string{"a", "b"}))
+}
+
+func TestTotalWeights(t *testing.T) {
+	val := TotalWeights([]NodeConf{
+		{
+			Weight: -1,
+		},
+		{
+			Weight: 0,
+		},
+		{
+			Weight: 1,
+		},
+	})
+	assert.Equal(t, 1, val)
+}
+
+func createMiniRedis() (r *miniredis.Miniredis, clean func(), err error) {
+	r, err = miniredis.Run()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return r, func() {
+		ch := make(chan lang.PlaceholderType)
+		go func() {
+			r.Close()
+			close(ch)
+		}()
+		select {
+		case <-ch:
+		case <-time.After(time.Second):
+		}
+	}, nil
+}

core/stores/clickhouse/clickhouse.go

@@ -1,7 +1,7 @@
 package clickhouse
 
 import (
-	_ "github.com/kshvakov/clickhouse"
+	_ "github.com/ClickHouse/clickhouse-go"
 	"github.com/tal-tech/go-zero/core/stores/sqlx"
 )
 

core/stores/internal/cachenode_test.go

@@ -1,65 +0,0 @@
-package internal
-
-import (
-	"errors"
-	"math/rand"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/alicebob/miniredis"
-	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/mathx"
-	"github.com/tal-tech/go-zero/core/stat"
-	"github.com/tal-tech/go-zero/core/stores/redis"
-)
-
-func init() {
-	logx.Disable()
-	stat.SetReporter(nil)
-}
-
-func TestCacheNode_DelCache(t *testing.T) {
-	s, err := miniredis.Run()
-	assert.Nil(t, err)
-	defer s.Close()
-
-	cn := cacheNode{
-		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
-		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
-		lock:           new(sync.Mutex),
-		unstableExpiry: mathx.NewUnstable(expiryDeviation),
-		stat:           NewCacheStat("any"),
-		errNotFound:    errors.New("any"),
-	}
-	assert.Nil(t, cn.DelCache())
-	assert.Nil(t, cn.DelCache([]string{}...))
-	assert.Nil(t, cn.DelCache(make([]string, 0)...))
-	cn.SetCache("first", "one")
-	assert.Nil(t, cn.DelCache("first"))
-	cn.SetCache("first", "one")
-	cn.SetCache("second", "two")
-	assert.Nil(t, cn.DelCache("first", "second"))
-}
-
-func TestCacheNode_InvalidCache(t *testing.T) {
-	s, err := miniredis.Run()
-	assert.Nil(t, err)
-	defer s.Close()
-
-	cn := cacheNode{
-		rds:            redis.NewRedis(s.Addr(), redis.NodeType),
-		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
-		lock:           new(sync.Mutex),
-		unstableExpiry: mathx.NewUnstable(expiryDeviation),
-		stat:           NewCacheStat("any"),
-		errNotFound:    errors.New("any"),
-	}
-	s.Set("any", "value")
-	var str string
-	assert.NotNil(t, cn.GetCache("any", &str))
-	assert.Equal(t, "", str)
-	_, err = s.Get("any")
-	assert.Equal(t, miniredis.ErrKeyNotFound, err)
-}

core/stores/internal/cacheopt.go

@@ -1,33 +0,0 @@
-package internal
-
-import "time"
-
-const (
-	defaultExpiry         = time.Hour * 24 * 7
-	defaultNotFoundExpiry = time.Minute
-)
-
-type (
-	Options struct {
-		Expiry         time.Duration
-		NotFoundExpiry time.Duration
-	}
-
-	Option func(o *Options)
-)
-
-func newOptions(opts ...Option) Options {
-	var o Options
-	for _, opt := range opts {
-		opt(&o)
-	}
-
-	if o.Expiry <= 0 {
-		o.Expiry = defaultExpiry
-	}
-	if o.NotFoundExpiry <= 0 {
-		o.NotFoundExpiry = defaultNotFoundExpiry
-	}
-
-	return o
-}

core/stores/kv/config.go

@@ -1,5 +1,7 @@
 package kv
 
-import "github.com/tal-tech/go-zero/core/stores/internal"
+import (
+	"github.com/tal-tech/go-zero/core/stores/cache"
+)
 
-type KvConf = internal.ClusterConf
+type KvConf = cache.ClusterConf

core/stores/kv/store.go

@@ -6,7 +6,7 @@ import (
 
 	"github.com/tal-tech/go-zero/core/errorx"
 	"github.com/tal-tech/go-zero/core/hash"
-	"github.com/tal-tech/go-zero/core/stores/internal"
+	"github.com/tal-tech/go-zero/core/stores/cache"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 )
 
@@ -73,6 +73,7 @@ type (
 		ZrevrangebyscoreWithScores(key string, start, stop int64) ([]redis.Pair, error)
 		ZrevrangebyscoreWithScoresAndLimit(key string, start, stop int64, page, size int) ([]redis.Pair, error)
 		Zscore(key string, value string) (int64, error)
+		Zrevrank(key, field string) (int64, error)
 	}
 
 	clusterStore struct {
@@ -81,7 +82,7 @@ type (
 )
 
 func NewStore(c KvConf) Store {
-	if len(c) == 0 || internal.TotalWeights(c) <= 0 {
+	if len(c) == 0 || cache.TotalWeights(c) <= 0 {
 		log.Fatal("no cache nodes")
 	}
 
@@ -635,6 +636,15 @@ func (cs clusterStore) ZrevrangebyscoreWithScoresAndLimit(key string, start, sto
 	return node.ZrevrangebyscoreWithScoresAndLimit(key, start, stop, page, size)
 }
 
+func (cs clusterStore) Zrevrank(key, field string) (int64, error) {
+	node, err := cs.getRedis(key)
+	if err != nil {
+		return 0, err
+	}
+
+	return node.Zrevrank(key, field)
+}
+
 func (cs clusterStore) Zscore(key string, value string) (int64, error) {
 	node, err := cs.getRedis(key)
 	if err != nil {

core/stores/kv/store_test.go

@@ -6,7 +6,8 @@ import (
 
 	"github.com/alicebob/miniredis"
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stores/internal"
+	"github.com/tal-tech/go-zero/core/hash"
+	"github.com/tal-tech/go-zero/core/stores/cache"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 	"github.com/tal-tech/go-zero/core/stringx"
 )
@@ -15,6 +16,10 @@ var s1, _ = miniredis.Run()
 var s2, _ = miniredis.Run()
 
 func TestRedis_Exists(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Exists("foo")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		ok, err := client.Exists("a")
 		assert.Nil(t, err)
@@ -27,6 +32,10 @@ func TestRedis_Exists(t *testing.T) {
 }
 
 func TestRedis_Eval(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Eval(`redis.call("EXISTS", KEYS[1])`, "key1")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		_, err := client.Eval(`redis.call("EXISTS", KEYS[1])`, "notexist")
 		assert.Equal(t, redis.Nil, err)
@@ -41,6 +50,12 @@ func TestRedis_Eval(t *testing.T) {
 }
 
 func TestRedis_Hgetall(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	err := store.Hset("a", "aa", "aaa")
+	assert.NotNil(t, err)
+	_, err = store.Hgetall("a")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		assert.Nil(t, client.Hset("a", "aa", "aaa"))
 		assert.Nil(t, client.Hset("a", "bb", "bbb"))
@@ -54,6 +69,10 @@ func TestRedis_Hgetall(t *testing.T) {
 }
 
 func TestRedis_Hvals(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Hvals("a")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		assert.Nil(t, client.Hset("a", "aa", "aaa"))
 		assert.Nil(t, client.Hset("a", "bb", "bbb"))
@@ -64,6 +83,10 @@ func TestRedis_Hvals(t *testing.T) {
 }
 
 func TestRedis_Hsetnx(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Hsetnx("a", "dd", "ddd")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		assert.Nil(t, client.Hset("a", "aa", "aaa"))
 		assert.Nil(t, client.Hset("a", "bb", "bbb"))
@@ -80,6 +103,12 @@ func TestRedis_Hsetnx(t *testing.T) {
 }
 
 func TestRedis_HdelHlen(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Hdel("a", "aa")
+	assert.NotNil(t, err)
+	_, err = store.Hlen("a")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		assert.Nil(t, client.Hset("a", "aa", "aaa"))
 		assert.Nil(t, client.Hset("a", "bb", "bbb"))
@@ -96,6 +125,10 @@ func TestRedis_HdelHlen(t *testing.T) {
 }
 
 func TestRedis_HIncrBy(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Hincrby("key", "field", 3)
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		val, err := client.Hincrby("key", "field", 2)
 		assert.Nil(t, err)
@@ -107,6 +140,10 @@ func TestRedis_HIncrBy(t *testing.T) {
 }
 
 func TestRedis_Hkeys(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Hkeys("a")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		assert.Nil(t, client.Hset("a", "aa", "aaa"))
 		assert.Nil(t, client.Hset("a", "bb", "bbb"))
@@ -117,6 +154,10 @@ func TestRedis_Hkeys(t *testing.T) {
 }
 
 func TestRedis_Hmget(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Hmget("a", "aa", "bb")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		assert.Nil(t, client.Hset("a", "aa", "aaa"))
 		assert.Nil(t, client.Hset("a", "bb", "bbb"))
@@ -130,6 +171,12 @@ func TestRedis_Hmget(t *testing.T) {
 }
 
 func TestRedis_Hmset(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	err := store.Hmset("a", map[string]string{
+		"aa": "aaa",
+	})
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		assert.Nil(t, client.Hmset("a", map[string]string{
 			"aa": "aaa",
@@ -142,6 +189,10 @@ func TestRedis_Hmset(t *testing.T) {
 }
 
 func TestRedis_Incr(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Incr("a")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		val, err := client.Incr("a")
 		assert.Nil(t, err)
@@ -153,6 +204,10 @@ func TestRedis_Incr(t *testing.T) {
 }
 
 func TestRedis_IncrBy(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Incrby("a", 2)
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		val, err := client.Incrby("a", 2)
 		assert.Nil(t, err)
@@ -164,6 +219,20 @@ func TestRedis_IncrBy(t *testing.T) {
 }
 
 func TestRedis_List(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Lpush("key", "value1", "value2")
+	assert.NotNil(t, err)
+	_, err = store.Rpush("key", "value3", "value4")
+	assert.NotNil(t, err)
+	_, err = store.Llen("key")
+	assert.NotNil(t, err)
+	_, err = store.Lrange("key", 0, 10)
+	assert.NotNil(t, err)
+	_, err = store.Lpop("key")
+	assert.NotNil(t, err)
+	_, err = store.Lrem("key", 0, "val")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		val, err := client.Lpush("key", "value1", "value2")
 		assert.Nil(t, err)
@@ -202,6 +271,14 @@ func TestRedis_List(t *testing.T) {
 }
 
 func TestRedis_Persist(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Persist("key")
+	assert.NotNil(t, err)
+	err = store.Expire("key", 5)
+	assert.NotNil(t, err)
+	err = store.Expireat("key", time.Now().Unix()+5)
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		ok, err := client.Persist("key")
 		assert.Nil(t, err)
@@ -225,8 +302,16 @@ func TestRedis_Persist(t *testing.T) {
 }
 
 func TestRedis_Sscan(t *testing.T) {
+	key := "list"
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Sadd(key, nil)
+	assert.NotNil(t, err)
+	_, _, err = store.Sscan(key, 0, "", 100)
+	assert.NotNil(t, err)
+	_, err = store.Del(key)
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
-		key := "list"
 		var list []string
 		for i := 0; i < 1550; i++ {
 			list = append(list, stringx.Randn(i))
@@ -254,6 +339,20 @@ func TestRedis_Sscan(t *testing.T) {
 }
 
 func TestRedis_Set(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Scard("key")
+	assert.NotNil(t, err)
+	_, err = store.Sismember("key", 2)
+	assert.NotNil(t, err)
+	_, err = store.Srem("key", 3, 4)
+	assert.NotNil(t, err)
+	_, err = store.Smembers("key")
+	assert.NotNil(t, err)
+	_, err = store.Srandmember("key", 1)
+	assert.NotNil(t, err)
+	_, err = store.Spop("key")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		num, err := client.Sadd("key", 1, 2, 3, 4)
 		assert.Nil(t, err)
@@ -290,6 +389,14 @@ func TestRedis_Set(t *testing.T) {
 }
 
 func TestRedis_SetGetDel(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	err := store.Set("hello", "world")
+	assert.NotNil(t, err)
+	_, err = store.Get("hello")
+	assert.NotNil(t, err)
+	_, err = store.Del("hello")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		err := client.Set("hello", "world")
 		assert.Nil(t, err)
@@ -303,6 +410,16 @@ func TestRedis_SetGetDel(t *testing.T) {
 }
 
 func TestRedis_SetExNx(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	err := store.Setex("hello", "world", 5)
+	assert.NotNil(t, err)
+	_, err = store.Setnx("newhello", "newworld")
+	assert.NotNil(t, err)
+	_, err = store.Ttl("hello")
+	assert.NotNil(t, err)
+	_, err = store.SetnxEx("newhello", "newworld", 5)
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		err := client.Setex("hello", "world", 5)
 		assert.Nil(t, err)
@@ -337,6 +454,16 @@ func TestRedis_SetExNx(t *testing.T) {
 }
 
 func TestRedis_SetGetDelHashField(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	err := store.Hset("key", "field", "value")
+	assert.NotNil(t, err)
+	_, err = store.Hget("key", "field")
+	assert.NotNil(t, err)
+	_, err = store.Hexists("key", "field")
+	assert.NotNil(t, err)
+	_, err = store.Hdel("key", "field")
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		err := client.Hset("key", "field", "value")
 		assert.Nil(t, err)
@@ -356,6 +483,50 @@ func TestRedis_SetGetDelHashField(t *testing.T) {
 }
 
 func TestRedis_SortedSet(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Zadd("key", 1, "value1")
+	assert.NotNil(t, err)
+	_, err = store.Zscore("key", "value1")
+	assert.NotNil(t, err)
+	_, err = store.Zcount("key", 6, 7)
+	assert.NotNil(t, err)
+	_, err = store.Zincrby("key", 3, "value1")
+	assert.NotNil(t, err)
+	_, err = store.Zrank("key", "value2")
+	assert.NotNil(t, err)
+	_, err = store.Zrem("key", "value2", "value3")
+	assert.NotNil(t, err)
+	_, err = store.Zremrangebyscore("key", 6, 7)
+	assert.NotNil(t, err)
+	_, err = store.Zremrangebyrank("key", 1, 2)
+	assert.NotNil(t, err)
+	_, err = store.Zcard("key")
+	assert.NotNil(t, err)
+	_, err = store.Zrange("key", 0, -1)
+	assert.NotNil(t, err)
+	_, err = store.Zrevrange("key", 0, -1)
+	assert.NotNil(t, err)
+	_, err = store.ZrangeWithScores("key", 0, -1)
+	assert.NotNil(t, err)
+	_, err = store.ZrangebyscoreWithScores("key", 5, 8)
+	assert.NotNil(t, err)
+	_, err = store.ZrangebyscoreWithScoresAndLimit("key", 5, 8, 1, 1)
+	assert.NotNil(t, err)
+	_, err = store.ZrevrangebyscoreWithScores("key", 5, 8)
+	assert.NotNil(t, err)
+	_, err = store.ZrevrangebyscoreWithScoresAndLimit("key", 5, 8, 1, 1)
+	assert.NotNil(t, err)
+	_, err = store.Zrevrank("key", "value")
+	assert.NotNil(t, err)
+	_, err = store.Zadds("key", redis.Pair{
+		Key:   "value2",
+		Score: 6,
+	}, redis.Pair{
+		Key:   "value3",
+		Score: 7,
+	})
+	assert.NotNil(t, err)
+
 	runOnCluster(t, func(client Store) {
 		ok, err := client.Zadd("key", 1, "value1")
 		assert.Nil(t, err)
@@ -471,6 +642,33 @@ func TestRedis_SortedSet(t *testing.T) {
 				Score: 5,
 			},
 		}, pairs)
+		rank, err = client.Zrevrank("key", "value1")
+		assert.Nil(t, err)
+		assert.Equal(t, int64(1), rank)
+		val, err = client.Zadds("key", redis.Pair{
+			Key:   "value2",
+			Score: 6,
+		}, redis.Pair{
+			Key:   "value3",
+			Score: 7,
+		})
+		assert.Nil(t, err)
+		assert.Equal(t, int64(2), val)
+	})
+}
+
+func TestRedis_HyperLogLog(t *testing.T) {
+	store := clusterStore{dispatcher: hash.NewConsistentHash()}
+	_, err := store.Pfadd("key")
+	assert.NotNil(t, err)
+	_, err = store.Pfcount("key")
+	assert.NotNil(t, err)
+
+	runOnCluster(t, func(cluster Store) {
+		_, err := cluster.Pfadd("key")
+		assert.NotNil(t, err)
+		_, err = cluster.Pfcount("key")
+		assert.NotNil(t, err)
 	})
 }
 
@@ -478,7 +676,7 @@ func runOnCluster(t *testing.T, fn func(cluster Store)) {
 	s1.FlushAll()
 	s2.FlushAll()
 
-	store := NewStore([]internal.NodeConf{
+	store := NewStore([]cache.NodeConf{
 		{
 			RedisConf: redis.RedisConf{
 				Host: s1.Addr(),

core/stores/mongo/collection.go

@@ -7,6 +7,7 @@ import (
 	"github.com/globalsign/mgo"
 	"github.com/tal-tech/go-zero/core/breaker"
 	"github.com/tal-tech/go-zero/core/logx"
+	"github.com/tal-tech/go-zero/core/stores/mongo/internal"
 	"github.com/tal-tech/go-zero/core/timex"
 )
 
@@ -29,8 +30,9 @@ type (
 	}
 
 	decoratedCollection struct {
-		*mgo.Collection
-		brk breaker.Breaker
+		name       string
+		collection internal.MgoCollection
+		brk        breaker.Breaker
 	}
 
 	keepablePromise struct {
@@ -41,7 +43,8 @@ type (
 
 func newCollection(collection *mgo.Collection) Collection {
 	return &decoratedCollection{
-		Collection: collection,
+		name:       collection.FullName,
+		collection: collection,
 		brk:        breaker.NewBreaker(),
 	}
 }
@@ -54,7 +57,7 @@ func (c *decoratedCollection) Find(query interface{}) Query {
 
 	startTime := timex.Now()
 	return promisedQuery{
-		Query: c.Collection.Find(query),
+		Query: c.collection.Find(query),
 		promise: keepablePromise{
 			promise: promise,
 			log: func(err error) {
@@ -73,7 +76,7 @@ func (c *decoratedCollection) FindId(id interface{}) Query {
 
 	startTime := timex.Now()
 	return promisedQuery{
-		Query: c.Collection.FindId(id),
+		Query: c.collection.FindId(id),
 		promise: keepablePromise{
 			promise: promise,
 			log: func(err error) {
@@ -92,7 +95,7 @@ func (c *decoratedCollection) Insert(docs ...interface{}) (err error) {
 			c.logDuration("insert", duration, err, docs...)
 		}()
 
-		return c.Collection.Insert(docs...)
+		return c.collection.Insert(docs...)
 	}, acceptable)
 }
 
@@ -104,7 +107,7 @@ func (c *decoratedCollection) Pipe(pipeline interface{}) Pipe {
 
 	startTime := timex.Now()
 	return promisedPipe{
-		Pipe: c.Collection.Pipe(pipeline),
+		Pipe: c.collection.Pipe(pipeline),
 		promise: keepablePromise{
 			promise: promise,
 			log: func(err error) {
@@ -123,7 +126,7 @@ func (c *decoratedCollection) Remove(selector interface{}) (err error) {
 			c.logDuration("remove", duration, err, selector)
 		}()
 
-		return c.Collection.Remove(selector)
+		return c.collection.Remove(selector)
 	}, acceptable)
 }
 
@@ -135,7 +138,7 @@ func (c *decoratedCollection) RemoveAll(selector interface{}) (info *mgo.ChangeI
 			c.logDuration("removeAll", duration, err, selector)
 		}()
 
-		info, err = c.Collection.RemoveAll(selector)
+		info, err = c.collection.RemoveAll(selector)
 		return err
 	}, acceptable)
 
@@ -150,7 +153,7 @@ func (c *decoratedCollection) RemoveId(id interface{}) (err error) {
 			c.logDuration("removeId", duration, err, id)
 		}()
 
-		return c.Collection.RemoveId(id)
+		return c.collection.RemoveId(id)
 	}, acceptable)
 }
 
@@ -162,7 +165,7 @@ func (c *decoratedCollection) Update(selector, update interface{}) (err error) {
 			c.logDuration("update", duration, err, selector, update)
 		}()
 
-		return c.Collection.Update(selector, update)
+		return c.collection.Update(selector, update)
 	}, acceptable)
 }
 
@@ -174,7 +177,7 @@ func (c *decoratedCollection) UpdateId(id, update interface{}) (err error) {
 			c.logDuration("updateId", duration, err, id, update)
 		}()
 
-		return c.Collection.UpdateId(id, update)
+		return c.collection.UpdateId(id, update)
 	}, acceptable)
 }
 
@@ -186,7 +189,7 @@ func (c *decoratedCollection) Upsert(selector, update interface{}) (info *mgo.Ch
 			c.logDuration("upsert", duration, err, selector, update)
 		}()
 
-		info, err = c.Collection.Upsert(selector, update)
+		info, err = c.collection.Upsert(selector, update)
 		return err
 	}, acceptable)
 
@@ -200,17 +203,17 @@ func (c *decoratedCollection) logDuration(method string, duration time.Duration,
 	} else if err != nil {
 		if duration > slowThreshold {
 			logx.WithDuration(duration).Slowf("[MONGO] mongo(%s) - slowcall - %s - fail(%s) - %s",
-				c.FullName, method, err.Error(), string(content))
+				c.name, method, err.Error(), string(content))
 		} else {
 			logx.WithDuration(duration).Infof("mongo(%s) - %s - fail(%s) - %s",
-				c.FullName, method, err.Error(), string(content))
+				c.name, method, err.Error(), string(content))
 		}
 	} else {
 		if duration > slowThreshold {
 			logx.WithDuration(duration).Slowf("[MONGO] mongo(%s) - slowcall - %s - ok - %s",
-				c.FullName, method, string(content))
+				c.name, method, string(content))
 		} else {
-			logx.WithDuration(duration).Infof("mongo(%s) - %s - ok - %s", c.FullName, method, string(content))
+			logx.WithDuration(duration).Infof("mongo(%s) - %s - ok - %s", c.name, method, string(content))
 		}
 	}
 }

core/stores/mongo/collection_test.go

@@ -5,10 +5,20 @@ import (
 	"testing"
 
 	"github.com/globalsign/mgo"
+	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/breaker"
+	"github.com/tal-tech/go-zero/core/logx"
+	"github.com/tal-tech/go-zero/core/stores/mongo/internal"
 	"github.com/tal-tech/go-zero/core/stringx"
 )
 
+var errDummy = errors.New("dummy")
+
+func init() {
+	logx.Disable()
+}
+
 func TestKeepPromise_accept(t *testing.T) {
 	p := new(mockPromise)
 	kp := keepablePromise{
@@ -56,6 +66,206 @@ func TestKeepPromise_keep(t *testing.T) {
 	}
 }
 
+func TestNewCollection(t *testing.T) {
+	col := newCollection(&mgo.Collection{
+		Database: nil,
+		Name:     "foo",
+		FullName: "bar",
+	})
+	assert.Equal(t, "bar", col.(*decoratedCollection).name)
+}
+
+func TestCollectionFind(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	var query mgo.Query
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().Find(gomock.Any()).Return(&query)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	actual := c.Find(nil)
+	switch v := actual.(type) {
+	case promisedQuery:
+		assert.Equal(t, &query, v.Query)
+		assert.Equal(t, errDummy, v.promise.keep(errDummy))
+	default:
+		t.Fail()
+	}
+	c.brk = new(dropBreaker)
+	actual = c.Find(nil)
+	assert.Equal(t, rejectedQuery{}, actual)
+}
+
+func TestCollectionFindId(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	var query mgo.Query
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().FindId(gomock.Any()).Return(&query)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	actual := c.FindId(nil)
+	switch v := actual.(type) {
+	case promisedQuery:
+		assert.Equal(t, &query, v.Query)
+		assert.Equal(t, errDummy, v.promise.keep(errDummy))
+	default:
+		t.Fail()
+	}
+	c.brk = new(dropBreaker)
+	actual = c.FindId(nil)
+	assert.Equal(t, rejectedQuery{}, actual)
+}
+
+func TestCollectionInsert(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().Insert(nil, nil).Return(errDummy)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	err := c.Insert(nil, nil)
+	assert.Equal(t, errDummy, err)
+	c.brk = new(dropBreaker)
+	err = c.Insert(nil, nil)
+	assert.Equal(t, errDummy, err)
+}
+
+func TestCollectionPipe(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	var pipe mgo.Pipe
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().Pipe(gomock.Any()).Return(&pipe)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	actual := c.Pipe(nil)
+	switch v := actual.(type) {
+	case promisedPipe:
+		assert.Equal(t, &pipe, v.Pipe)
+		assert.Equal(t, errDummy, v.promise.keep(errDummy))
+	default:
+		t.Fail()
+	}
+	c.brk = new(dropBreaker)
+	actual = c.Pipe(nil)
+	assert.Equal(t, rejectedPipe{}, actual)
+}
+
+func TestCollectionRemove(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().Remove(gomock.Any()).Return(errDummy)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	err := c.Remove(nil)
+	assert.Equal(t, errDummy, err)
+	c.brk = new(dropBreaker)
+	err = c.Remove(nil)
+	assert.Equal(t, errDummy, err)
+}
+
+func TestCollectionRemoveAll(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().RemoveAll(gomock.Any()).Return(nil, errDummy)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	_, err := c.RemoveAll(nil)
+	assert.Equal(t, errDummy, err)
+	c.brk = new(dropBreaker)
+	_, err = c.RemoveAll(nil)
+	assert.Equal(t, errDummy, err)
+}
+
+func TestCollectionRemoveId(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().RemoveId(gomock.Any()).Return(errDummy)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	err := c.RemoveId(nil)
+	assert.Equal(t, errDummy, err)
+	c.brk = new(dropBreaker)
+	err = c.RemoveId(nil)
+	assert.Equal(t, errDummy, err)
+}
+
+func TestCollectionUpdate(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().Update(gomock.Any(), gomock.Any()).Return(errDummy)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	err := c.Update(nil, nil)
+	assert.Equal(t, errDummy, err)
+	c.brk = new(dropBreaker)
+	err = c.Update(nil, nil)
+	assert.Equal(t, errDummy, err)
+}
+
+func TestCollectionUpdateId(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().UpdateId(gomock.Any(), gomock.Any()).Return(errDummy)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	err := c.UpdateId(nil, nil)
+	assert.Equal(t, errDummy, err)
+	c.brk = new(dropBreaker)
+	err = c.UpdateId(nil, nil)
+	assert.Equal(t, errDummy, err)
+}
+
+func TestCollectionUpsert(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	col := internal.NewMockMgoCollection(ctrl)
+	col.EXPECT().Upsert(gomock.Any(), gomock.Any()).Return(nil, errDummy)
+	c := decoratedCollection{
+		collection: col,
+		brk:        breaker.NewBreaker(),
+	}
+	_, err := c.Upsert(nil, nil)
+	assert.Equal(t, errDummy, err)
+	c.brk = new(dropBreaker)
+	_, err = c.Upsert(nil, nil)
+	assert.Equal(t, errDummy, err)
+}
+
 type mockPromise struct {
 	accepted bool
 	reason   string
@@ -68,3 +278,31 @@ func (p *mockPromise) Accept() {
 func (p *mockPromise) Reject(reason string) {
 	p.reason = reason
 }
+
+type dropBreaker struct {
+}
+
+func (d *dropBreaker) Name() string {
+	return "dummy"
+}
+
+func (d *dropBreaker) Allow() (breaker.Promise, error) {
+	return nil, errDummy
+}
+
+func (d *dropBreaker) Do(req func() error) error {
+	return nil
+}
+
+func (d *dropBreaker) DoWithAcceptable(req func() error, acceptable breaker.Acceptable) error {
+	return errDummy
+}
+
+func (d *dropBreaker) DoWithFallback(req func() error, fallback func(err error) error) error {
+	return nil
+}
+
+func (d *dropBreaker) DoWithFallbackAcceptable(req func() error, fallback func(err error) error,
+	acceptable breaker.Acceptable) error {
+	return nil
+}

core/stores/mongo/internal/collection.go

@@ -0,0 +1,17 @@
+//go:generate mockgen -package internal -destination collection_mock.go -source collection.go
+package internal
+
+import "github.com/globalsign/mgo"
+
+type MgoCollection interface {
+	Find(query interface{}) *mgo.Query
+	FindId(id interface{}) *mgo.Query
+	Insert(docs ...interface{}) error
+	Pipe(pipeline interface{}) *mgo.Pipe
+	Remove(selector interface{}) error
+	RemoveAll(selector interface{}) (*mgo.ChangeInfo, error)
+	RemoveId(id interface{}) error
+	Update(selector, update interface{}) error
+	UpdateId(id, update interface{}) error
+	Upsert(selector, update interface{}) (*mgo.ChangeInfo, error)
+}

core/stores/mongo/internal/collection_mock.go

@@ -0,0 +1,180 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: collection.go
+
+// Package internal is a generated GoMock package.
+package internal
+
+import (
+	mgo "github.com/globalsign/mgo"
+	gomock "github.com/golang/mock/gomock"
+	reflect "reflect"
+)
+
+// MockMgoCollection is a mock of MgoCollection interface
+type MockMgoCollection struct {
+	ctrl     *gomock.Controller
+	recorder *MockMgoCollectionMockRecorder
+}
+
+// MockMgoCollectionMockRecorder is the mock recorder for MockMgoCollection
+type MockMgoCollectionMockRecorder struct {
+	mock *MockMgoCollection
+}
+
+// NewMockMgoCollection creates a new mock instance
+func NewMockMgoCollection(ctrl *gomock.Controller) *MockMgoCollection {
+	mock := &MockMgoCollection{ctrl: ctrl}
+	mock.recorder = &MockMgoCollectionMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (m *MockMgoCollection) EXPECT() *MockMgoCollectionMockRecorder {
+	return m.recorder
+}
+
+// Find mocks base method
+func (m *MockMgoCollection) Find(query interface{}) *mgo.Query {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Find", query)
+	ret0, _ := ret[0].(*mgo.Query)
+	return ret0
+}
+
+// Find indicates an expected call of Find
+func (mr *MockMgoCollectionMockRecorder) Find(query interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Find", reflect.TypeOf((*MockMgoCollection)(nil).Find), query)
+}
+
+// FindId mocks base method
+func (m *MockMgoCollection) FindId(id interface{}) *mgo.Query {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "FindId", id)
+	ret0, _ := ret[0].(*mgo.Query)
+	return ret0
+}
+
+// FindId indicates an expected call of FindId
+func (mr *MockMgoCollectionMockRecorder) FindId(id interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "FindId", reflect.TypeOf((*MockMgoCollection)(nil).FindId), id)
+}
+
+// Insert mocks base method
+func (m *MockMgoCollection) Insert(docs ...interface{}) error {
+	m.ctrl.T.Helper()
+	varargs := []interface{}{}
+	for _, a := range docs {
+		varargs = append(varargs, a)
+	}
+	ret := m.ctrl.Call(m, "Insert", varargs...)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Insert indicates an expected call of Insert
+func (mr *MockMgoCollectionMockRecorder) Insert(docs ...interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Insert", reflect.TypeOf((*MockMgoCollection)(nil).Insert), docs...)
+}
+
+// Pipe mocks base method
+func (m *MockMgoCollection) Pipe(pipeline interface{}) *mgo.Pipe {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Pipe", pipeline)
+	ret0, _ := ret[0].(*mgo.Pipe)
+	return ret0
+}
+
+// Pipe indicates an expected call of Pipe
+func (mr *MockMgoCollectionMockRecorder) Pipe(pipeline interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Pipe", reflect.TypeOf((*MockMgoCollection)(nil).Pipe), pipeline)
+}
+
+// Remove mocks base method
+func (m *MockMgoCollection) Remove(selector interface{}) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Remove", selector)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Remove indicates an expected call of Remove
+func (mr *MockMgoCollectionMockRecorder) Remove(selector interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Remove", reflect.TypeOf((*MockMgoCollection)(nil).Remove), selector)
+}
+
+// RemoveAll mocks base method
+func (m *MockMgoCollection) RemoveAll(selector interface{}) (*mgo.ChangeInfo, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RemoveAll", selector)
+	ret0, _ := ret[0].(*mgo.ChangeInfo)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// RemoveAll indicates an expected call of RemoveAll
+func (mr *MockMgoCollectionMockRecorder) RemoveAll(selector interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RemoveAll", reflect.TypeOf((*MockMgoCollection)(nil).RemoveAll), selector)
+}
+
+// RemoveId mocks base method
+func (m *MockMgoCollection) RemoveId(id interface{}) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RemoveId", id)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RemoveId indicates an expected call of RemoveId
+func (mr *MockMgoCollectionMockRecorder) RemoveId(id interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RemoveId", reflect.TypeOf((*MockMgoCollection)(nil).RemoveId), id)
+}
+
+// Update mocks base method
+func (m *MockMgoCollection) Update(selector, update interface{}) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Update", selector, update)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Update indicates an expected call of Update
+func (mr *MockMgoCollectionMockRecorder) Update(selector, update interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Update", reflect.TypeOf((*MockMgoCollection)(nil).Update), selector, update)
+}
+
+// UpdateId mocks base method
+func (m *MockMgoCollection) UpdateId(id, update interface{}) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "UpdateId", id, update)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// UpdateId indicates an expected call of UpdateId
+func (mr *MockMgoCollectionMockRecorder) UpdateId(id, update interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UpdateId", reflect.TypeOf((*MockMgoCollection)(nil).UpdateId), id, update)
+}
+
+// Upsert mocks base method
+func (m *MockMgoCollection) Upsert(selector, update interface{}) (*mgo.ChangeInfo, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Upsert", selector, update)
+	ret0, _ := ret[0].(*mgo.ChangeInfo)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// Upsert indicates an expected call of Upsert
+func (mr *MockMgoCollectionMockRecorder) Upsert(selector, update interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Upsert", reflect.TypeOf((*MockMgoCollection)(nil).Upsert), selector, update)
+}

core/stores/mongo/model.go

@@ -22,8 +22,8 @@ type (
 	}
 )
 
-func MustNewModel(url, database, collection string, opts ...Option) *Model {
-	model, err := NewModel(url, database, collection, opts...)
+func MustNewModel(url, collection string, opts ...Option) *Model {
+	model, err := NewModel(url, collection, opts...)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -31,15 +31,16 @@ func MustNewModel(url, database, collection string, opts ...Option) *Model {
 	return model
 }
 
-func NewModel(url, database, collection string, opts ...Option) (*Model, error) {
+func NewModel(url, collection string, opts ...Option) (*Model, error) {
 	session, err := getConcurrentSession(url)
 	if err != nil {
 		return nil, err
 	}
 
 	return &Model{
-		session:    session,
-		db:         session.DB(database),
+		session: session,
+		// If name is empty, the database name provided in the dialed URL is used instead
+		db:         session.DB(""),
 		collection: collection,
 		opts:       opts,
 	}, nil

core/stores/mongoc/cachedcollection.go

@@ -2,7 +2,7 @@ package mongoc
 
 import (
 	"github.com/globalsign/mgo"
-	"github.com/tal-tech/go-zero/core/stores/internal"
+	"github.com/tal-tech/go-zero/core/stores/cache"
 	"github.com/tal-tech/go-zero/core/stores/mongo"
 	"github.com/tal-tech/go-zero/core/syncx"
 )
@@ -12,7 +12,7 @@ var (
 
 	// can't use one SharedCalls per conn, because multiple conns may share the same cache key.
 	sharedCalls = syncx.NewSharedCalls()
-	stats       = internal.NewCacheStat("mongoc")
+	stats       = cache.NewCacheStat("mongoc")
 )
 
 type (
@@ -20,11 +20,11 @@ type (
 
 	cachedCollection struct {
 		collection mongo.Collection
-		cache      internal.Cache
+		cache      cache.Cache
 	}
 )
 
-func newCollection(collection mongo.Collection, c internal.Cache) *cachedCollection {
+func newCollection(collection mongo.Collection, c cache.Cache) *cachedCollection {
 	return &cachedCollection{
 		collection: collection,
 		cache:      c,

core/stores/mongoc/cachedcollection_test.go

@@ -16,7 +16,7 @@ import (
 	"github.com/globalsign/mgo/bson"
 	"github.com/stretchr/testify/assert"
 	"github.com/tal-tech/go-zero/core/stat"
-	"github.com/tal-tech/go-zero/core/stores/internal"
+	"github.com/tal-tech/go-zero/core/stores/cache"
 	"github.com/tal-tech/go-zero/core/stores/mongo"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 )
@@ -33,7 +33,7 @@ func TestStat(t *testing.T) {
 	}
 
 	r := redis.NewRedis(s.Addr(), redis.NodeType)
-	cach := internal.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
+	cach := cache.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
 	c := newCollection(dummyConn{}, cach)
 
 	for i := 0; i < 10; i++ {
@@ -56,7 +56,7 @@ func TestStatCacheFails(t *testing.T) {
 	defer log.SetOutput(os.Stdout)
 
 	r := redis.NewRedis("localhost:59999", redis.NodeType)
-	cach := internal.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
+	cach := cache.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
 	c := newCollection(dummyConn{}, cach)
 
 	for i := 0; i < 20; i++ {
@@ -79,7 +79,7 @@ func TestStatDbFails(t *testing.T) {
 	}
 
 	r := redis.NewRedis(s.Addr(), redis.NodeType)
-	cach := internal.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
+	cach := cache.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
 	c := newCollection(dummyConn{}, cach)
 
 	for i := 0; i < 20; i++ {
@@ -103,7 +103,7 @@ func TestStatFromMemory(t *testing.T) {
 	}
 
 	r := redis.NewRedis(s.Addr(), redis.NodeType)
-	cach := internal.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
+	cach := cache.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
 	c := newCollection(dummyConn{}, cach)
 
 	var all sync.WaitGroup

core/stores/mongoc/cachedmodel.go

@@ -5,19 +5,18 @@ import (
 
 	"github.com/globalsign/mgo"
 	"github.com/tal-tech/go-zero/core/stores/cache"
-	"github.com/tal-tech/go-zero/core/stores/internal"
 	"github.com/tal-tech/go-zero/core/stores/mongo"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 )
 
 type Model struct {
 	*mongo.Model
-	cache              internal.Cache
+	cache              cache.Cache
 	generateCollection func(*mgo.Session) *cachedCollection
 }
 
-func MustNewNodeModel(url, database, collection string, rds *redis.Redis, opts ...cache.Option) *Model {
-	model, err := NewNodeModel(url, database, collection, rds, opts...)
+func MustNewNodeModel(url, collection string, rds *redis.Redis, opts ...cache.Option) *Model {
+	model, err := NewNodeModel(url, collection, rds, opts...)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -25,8 +24,8 @@ func MustNewNodeModel(url, database, collection string, rds *redis.Redis, opts .
 	return model
 }
 
-func MustNewModel(url, database, collection string, c cache.CacheConf, opts ...cache.Option) *Model {
-	model, err := NewModel(url, database, collection, c, opts...)
+func MustNewModel(url, collection string, c cache.CacheConf, opts ...cache.Option) *Model {
+	model, err := NewModel(url, collection, c, opts...)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -34,16 +33,16 @@ func MustNewModel(url, database, collection string, c cache.CacheConf, opts ...c
 	return model
 }
 
-func NewNodeModel(url, database, collection string, rds *redis.Redis, opts ...cache.Option) (*Model, error) {
-	c := internal.NewCacheNode(rds, sharedCalls, stats, mgo.ErrNotFound, opts...)
-	return createModel(url, database, collection, c, func(collection mongo.Collection) *cachedCollection {
+func NewNodeModel(url, collection string, rds *redis.Redis, opts ...cache.Option) (*Model, error) {
+	c := cache.NewCacheNode(rds, sharedCalls, stats, mgo.ErrNotFound, opts...)
+	return createModel(url, collection, c, func(collection mongo.Collection) *cachedCollection {
 		return newCollection(collection, c)
 	})
 }
 
-func NewModel(url, database, collection string, conf cache.CacheConf, opts ...cache.Option) (*Model, error) {
-	c := internal.NewCache(conf, sharedCalls, stats, mgo.ErrNotFound, opts...)
-	return createModel(url, database, collection, c, func(collection mongo.Collection) *cachedCollection {
+func NewModel(url, collection string, conf cache.CacheConf, opts ...cache.Option) (*Model, error) {
+	c := cache.NewCache(conf, sharedCalls, stats, mgo.ErrNotFound, opts...)
+	return createModel(url, collection, c, func(collection mongo.Collection) *cachedCollection {
 		return newCollection(collection, c)
 	})
 }
@@ -224,9 +223,9 @@ func (mm *Model) pipe(fn func(c *cachedCollection) mongo.Pipe) (mongo.Pipe, erro
 	return fn(mm.GetCollection(session)), nil
 }
 
-func createModel(url, database, collection string, c internal.Cache,
+func createModel(url, collection string, c cache.Cache,
 	create func(mongo.Collection) *cachedCollection) (*Model, error) {
-	model, err := mongo.NewModel(url, database, collection)
+	model, err := mongo.NewModel(url, collection)
 	if err != nil {
 		return nil, err
 	}

core/stores/redis/conf_test.go

@@ -0,0 +1,110 @@
+package redis
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/stringx"
+)
+
+func TestRedisConf(t *testing.T) {
+	tests := []struct {
+		name string
+		RedisConf
+		ok bool
+	}{
+		{
+			name: "missing host",
+			RedisConf: RedisConf{
+				Host: "",
+				Type: NodeType,
+				Pass: "",
+			},
+			ok: false,
+		},
+		{
+			name: "missing type",
+			RedisConf: RedisConf{
+				Host: "localhost:6379",
+				Type: "",
+				Pass: "",
+			},
+			ok: false,
+		},
+		{
+			name: "ok",
+			RedisConf: RedisConf{
+				Host: "localhost:6379",
+				Type: NodeType,
+				Pass: "",
+			},
+			ok: true,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(stringx.RandId(), func(t *testing.T) {
+			if test.ok {
+				assert.Nil(t, test.RedisConf.Validate())
+				assert.NotNil(t, test.RedisConf.NewRedis())
+			} else {
+				assert.NotNil(t, test.RedisConf.Validate())
+			}
+		})
+	}
+}
+
+func TestRedisKeyConf(t *testing.T) {
+	tests := []struct {
+		name string
+		RedisKeyConf
+		ok bool
+	}{
+		{
+			name: "missing host",
+			RedisKeyConf: RedisKeyConf{
+				RedisConf: RedisConf{
+					Host: "",
+					Type: NodeType,
+					Pass: "",
+				},
+				Key: "foo",
+			},
+			ok: false,
+		},
+		{
+			name: "missing key",
+			RedisKeyConf: RedisKeyConf{
+				RedisConf: RedisConf{
+					Host: "localhost:6379",
+					Type: NodeType,
+					Pass: "",
+				},
+				Key: "",
+			},
+			ok: false,
+		},
+		{
+			name: "ok",
+			RedisKeyConf: RedisKeyConf{
+				RedisConf: RedisConf{
+					Host: "localhost:6379",
+					Type: NodeType,
+					Pass: "",
+				},
+				Key: "foo",
+			},
+			ok: true,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if test.ok {
+				assert.Nil(t, test.RedisKeyConf.Validate())
+			} else {
+				assert.NotNil(t, test.RedisKeyConf.Validate())
+			}
+		})
+	}
+}

core/stores/redis/redis.go

@@ -1273,6 +1273,20 @@ func (s *Redis) ZrevrangebyscoreWithScoresAndLimit(key string, start, stop int64
 	return
 }
 
+func (s *Redis) Zrevrank(key string, field string) (val int64, err error) {
+	err = s.brk.DoWithAcceptable(func() error {
+		conn, err := getRedis(s)
+		if err != nil {
+			return err
+		}
+
+		val, err = conn.ZRevRank(key, field).Result()
+		return err
+	}, acceptable)
+
+	return
+}
+
 func (s *Redis) String() string {
 	return s.Addr
 }