Ahmed Ayed
c6a93001eb
* Do not emit url pop on Location.go * Emit a `popstate` event before each `hashchange` to have the same behavior of the browser. * Track the url change in the internal history when calling `simulateHashChange` The changes to the router tests reflect the goals of the test. Generally when `Location.go` is used to trigger navigations, it is only relevant for `HashLocationStrategy` and verifying that the Router picks up changes from manual URL changes. To do this, we convert those calls to `simulateHashChange` instead. Manual URL bar changes to the path when not using the `HashLocationStrategy` would otherwise trigger a full page refresh so they aren't relevant to these test scenarios which assert correct behavior during the lifetime of the router. [Reference for no `popstate` on `pushState`/`replaceState`](https://developer.mozilla.org/en-US/docs/Web/API/Window/popstate_event) > Note that just calling history.pushState() or history.replaceState() won't trigger a popstate event. The popstate event will be triggered by doing a browser action such as a click on the back or forward button (or calling history.back() or history.forward() in JavaScript). [Reference for `popstate` before `hashChange`](https://developer.mozilla.org/en-US/docs/Web/API/Window/popstate_event#when_popstate_is_sent) > When the transition occurs, either due to the user triggering the browser's > "Back" button or otherwise, the popstate event is near the end of the process to transition to the new location ... > 12. If the value of state changed, the popstate event is sent to the document. > 13. Any persisted user state is restored, if the browser chooses to do so. > 14. If the original and new entry's shared the same document, but had different fragments in their URLs, send the hashchange event to the window. BREAKING CHANGE: The behavior of the `SpyLocation` used by the `RouterTestingModule` has changed to match the behavior of browsers. It no longer emits a 'popstate' event when `Location.go` is called. In addition, `simulateHashChange` now triggers _both_ a `hashchange` and a `popstate` event. Tests which use `location.go` and expect the changes to be picked up by the `Router` should likely change to `simulateHashChange` instead. Each test is different in what it attempts to assert so there is no single change that works for all tests. Each test using the `SpyLocation` to simulate browser URL changes should be evaluated on a case-by-case basis. fixes #27059 PR Close #41730
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