From 84d0d33c3537f0da927e0ce449ede78ef9bebc6b Mon Sep 17 00:00:00 2001
From: Alex Rickabaugh <alx+alxhub@alxandria.net>
Date: Wed, 21 Sep 2022 13:40:25 -0700
Subject: [PATCH] feat(http): introduce `provideHttpClientTesting` provider
 function (#47502)

This commit introduces the `provideHttpClientTesting()` function as an
alternative to the `HttpClientTestingModule` (in fact, the NgModule is
converted internally to just use the new provider function).

PR Close #47502
---
 .../public-api/common/http/testing/index.md   |  4 ++++
 packages/common/http/testing/public_api.ts    |  1 +
 packages/common/http/testing/src/module.ts    |  9 +++-----
 packages/common/http/testing/src/provider.ts  | 22 +++++++++++++++++++
 4 files changed, 30 insertions(+), 6 deletions(-)
 create mode 100644 packages/common/http/testing/src/provider.ts

diff --git a/goldens/public-api/common/http/testing/index.md b/goldens/public-api/common/http/testing/index.md
index 1b21c819a0d..e6da6e192ae 100644
--- a/goldens/public-api/common/http/testing/index.md
+++ b/goldens/public-api/common/http/testing/index.md
@@ -10,6 +10,7 @@ import { HttpRequest } from '@angular/common/http';
 import * as i0 from '@angular/core';
 import * as i1 from '@angular/common/http';
 import { Observer } from 'rxjs';
+import { Provider } from '@angular/core';
 
 // @public
 export class HttpClientTestingModule {
@@ -37,6 +38,9 @@ export abstract class HttpTestingController {
     }): void;
 }
 
+// @public (undocumented)
+export function provideHttpClientTesting(): Provider[];
+
 // @public
 export interface RequestMatch {
     // (undocumented)
diff --git a/packages/common/http/testing/public_api.ts b/packages/common/http/testing/public_api.ts
index 886408981b1..b4e3c445c69 100644
--- a/packages/common/http/testing/public_api.ts
+++ b/packages/common/http/testing/public_api.ts
@@ -8,4 +8,5 @@
 
 export {HttpTestingController, RequestMatch} from './src/api';
 export {HttpClientTestingModule} from './src/module';
+export {provideHttpClientTesting} from './src/provider';
 export {TestRequest} from './src/request';
diff --git a/packages/common/http/testing/src/module.ts b/packages/common/http/testing/src/module.ts
index f1c76c0cfac..b5f73641bc8 100644
--- a/packages/common/http/testing/src/module.ts
+++ b/packages/common/http/testing/src/module.ts
@@ -6,11 +6,10 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {HttpBackend, HttpClientModule} from '@angular/common/http';
+import {HttpClientModule} from '@angular/common/http';
 import {NgModule} from '@angular/core';
 
-import {HttpTestingController} from './api';
-import {HttpClientTestingBackend} from './backend';
+import {provideHttpClientTesting} from './provider';
 
 
 /**
@@ -25,9 +24,7 @@ import {HttpClientTestingBackend} from './backend';
     HttpClientModule,
   ],
   providers: [
-    HttpClientTestingBackend,
-    {provide: HttpBackend, useExisting: HttpClientTestingBackend},
-    {provide: HttpTestingController, useExisting: HttpClientTestingBackend},
+    provideHttpClientTesting(),
   ],
 })
 export class HttpClientTestingModule {
diff --git a/packages/common/http/testing/src/provider.ts b/packages/common/http/testing/src/provider.ts
new file mode 100644
index 00000000000..7676a51818f
--- /dev/null
+++ b/packages/common/http/testing/src/provider.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import {HttpBackend, HttpClientModule} from '@angular/common/http';
+import {NgModule, Provider} from '@angular/core';
+
+import {HttpTestingController} from './api';
+import {HttpClientTestingBackend} from './backend';
+
+
+export function provideHttpClientTesting(): Provider[] {
+  return [
+    HttpClientTestingBackend,
+    {provide: HttpBackend, useExisting: HttpClientTestingBackend},
+    {provide: HttpTestingController, useExisting: HttpClientTestingBackend},
+  ];
+}