`zone.js` 0.8.25 introduces `zone-testing` bundle and move all `fakeAsync/async` logic
from `@angular/core/testing` to `zone.js` package. But in case some user still using the old
version of `zone.js`, an old version of `fakeAsync/async` logic were still kept inside `@angular/core/testing`
package as `fallback` logic. Since now `Angular8+` already use `zone.js 0.9+`, so
those fallback logic is removed.
PR Close#37879
There is an inconsistency in overrideProvider behaviour. Testing documentation says
(https://angular.io/guide/testing-components-basics#createcomponent) that all override...
methods throw error if TestBed is already instantiated. However overrideProvider doesn't throw any error, but (same as
other override... methods) doesn't replace providers if TestBed is instantiated. Add TestBed instantiation check to
overrideProvider method to make it consistent.
BREAKING CHANGE:
If you call `TestBed.overrideProvider` after TestBed initialization, provider overrides are not applied. This
behavior is consistent with other override methods (such as `TestBed.overrideDirective`, etc) but they
throw an error to indicate that, when the check was missing in the `TestBed.overrideProvider` function.
Now calling `TestBed.overrideProvider` after TestBed initialization also triggers an
error, thus there is a chance that some tests (where `TestBed.overrideProvider` is
called after TestBed initialization) will start to fail and require updates to move `TestBed.overrideProvider` calls
before TestBed initialization is completed.
Issue mentioned here: https://github.com/angular/angular/issues/13460#issuecomment-636005966
Documentation: https://angular.io/guide/testing-components-basics#createcomponent
PR Close#38717
`tView` that is stored on a component def contains information about directives and pipes
that are available in the scope of this component. Patching component scope causes `tView` to be
updated. Prior to this commit, the `tView` information was not restored/reset in case component
class is not declared in the `declarations` field while calling `TestBed.configureTestingModule`,
thus causing `tView` to be reused between tests (thus preserving scopes information between tests).
This commit updates TestBed logic to preserve `tView` value before applying scope changes and
reset it back to the previous state between tests.
Closes#38600.
PR Close#38659
@angular/core/testing provide `async` test utility, but the name `async` is
confusing with the javascript keyword `async`. And in some test case, if you
want to use both the `async` from `@angular/core/testing` and `async/await`,
you may have to write the code like this.
```typescript
it('test async operations', async(async() => {
const result = await asyncMethod();
expect(result).toEqual('expected');
}));
```
So in this PR, the `async` is renamed to `waitForAsync` and also deprecate `async`.
PR Close#37583
```
export const __core_private_testing_placeholder__ = '';
```
This API should be removed. But doing so seems to break `google3` and
so it requires a bit of investigation. A work around is to mark it as
`@codeGenApi` for now and investigate later.
PR Close#38274
PR https://github.com/angular/angular/pull/37523 failed when trying to use `rxjs delay` operator
inside `fakeAsync`, and the reasons are:
1. we need to import `rxjs-fake-async` patch to make the integration work.
2. since in `angular` repo, the bazel target `/tools/testing:node` not using `zone-testing` bundle,
instead it load `zone-spec` packages seperately, so it causes one issue which is the `zone.js/testing/fake-async`
package is not loaded, we do have a fallback logic under `packages/core/testing` calles `fake_async_fallback`,
but the logic is out of date with `fake-async` under `zone.js` package.
So this PR, I updated the content of `fake_async_fallback` to make it consistent with
`fake-async`. And I will make another PR to try to remove the `fallback` logic.
PR Close#37680
Currently when bootstrapped component is being removed using `ComponentRef.destroy` or `NgModuleRef.destroy` methods, DOM nodes may be retained in the DOM tree. This commit fixes that problem by always attaching host element of the internal root view to the component's host view node, so the cleanup can happen correctly.
Resolves#36449.
PR Close#37600
We can remove all of the entry point resolution configuration from the package.json
in our source code as ng_package rule adds the properties automatically and correctly
configures them.
This change simplifies our code base but doesn't have any impact on the package.json
in the distributed npm_packages.
PR Close#36944
When module overrides (via `TestBed.overrideModule`) are present, it might affect all modules that import (even transitively) an overridden one. For all affected modules we need to recalculate their scopes for a given test run and restore original scopes at the end. Prior to this change, we were recalculating module scopes only for components that are used in a test, without taking into account module hierarchy. This commit updates Ivy TestBed logic to calculate all potentially affected modules are reset cached scopes information for them (so that scopes are recalculated as needed).
Resolves#36619.
PR Close#36649
Prior to this commit, Ivy TestBed was accessing locale ID before `APP_INITIALIZER` functions were called. This execution order is not consistent with the app bootstrap logic in `application_ref.ts`. This commit updates Ivy TestBed execution order to call initializers first (since they might affect `LOCALE_ID` token value) and accessing and setting locale ID after that.
Fixes#36230.
PR Close#36237
Currently if TestBed detects that TestBed.overrideModule was used for module X, transitive scopes are recalculated recursively for all modules that X imports and previously calculated data (stored in cache) is ignored. This behavior was introduced in https://github.com/angular/angular/pull/33787 to fix stale transitive scopes issue (cache was not updated if module overrides are present).
The perf issue comes from a "diamond" problem, where module X is overridden which imports modules A and B, which both import module C. Under previous logic, module C gets its transitive deps recomputed multiple times, during the recompute for both A and B. For deep graphs and big common/shared modules this can be super costly.
This commit updates the logic to recalculate ransitive scopes for the overridden module, while keeping previously calculated scopes of other modules untouched.
PR Close#35454
The current logic pulls multiproviders up to the parent module's
provider list. The result is that the multi provider being defined both in
the imported ModuleWithProviders and the parent and getting an extra
item in the multi provided array of values. This PR fixes that problem
by not pulling providers in ModuleWithProviders up to the parent module.
PR Close#34914
NOTE: This change must be reverted with previous deletes so that it code remains in build-able state.
This change deletes old styling code and replaces it with a simplified styling algorithm.
The mental model for the new algorithm is:
- Create a linked list of styling bindings in the order of priority. All styling bindings ere executed in compiled order and than a linked list of bindings is created in priority order.
- Flush the style bindings at the end of `advance()` instruction. This implies that there are two flush events. One at the end of template `advance` instruction in the template. Second one at the end of `hostBindings` `advance` instruction when processing host bindings (if any).
- Each binding instructions effectively updates the string to represent the string at that location. Because most of the bindings are additive, this is a cheap strategy in most cases. In rare cases the strategy requires removing tokens from the styling up to this point. (We expect that to be rare case)S Because, the bindings are presorted in the order of priority, it is safe to resume the processing of the concatenated string from the last change binding.
PR Close#34616
Typescript 3.7 now emits d.ts files for getters differently than prior versions,
and there seems to be a bug in how it strips private types without replacing them
with explicit 'any' type. This then leads to compilation failures in projects compiled
against our packages that don't have skipLibCheck turned on but do have strict or
noImplicitAny check on.
I'm working around this by marking the affected getters as @internal and
adding a test to prevent future regressions.
I believe this is a TypeScript bug, and I filed a bug report:
https://github.com/microsoft/TypeScript/issues/36216
PR Close#34798
Fixes an error that is thrown when a provider is overridden in `TestBed`, if the module definition of one of the imported modules uses a function for the `imports` that is set via `setNgModuleScope`. The problem was that we have a `for...of` loop that assumes that the imports are an array, but they can also be a function. This was handled correctly in other places, but this one was missed.
Note that the above-mentioned error is only thrown at runtime when the code is transpiled to es6. In es5 TS generates a call to a helper that handles the error silently so the attached unit test only fails in es6.
Fixes#34623.
PR Close#34629
In Ivy, if you do:
`TestBed.configureTestingModule({providers: [{provide: Service}]});`
the injector will attempt to inject Service as if it was simply listed
in the providers array like `{providers: [Service]}`
This fixes an inconsistency when similarly providing an override with no
`useValue` or `useFactory`.
PR Close#33769
Prior to this commit, there was no check in R3TestBed to verify that metadata is resolved using a given Type. That leads to some cryptic error messages (when TestBed tries to compile a Type without having metadata) in case TestBed override functions receive unexpected Types (for example a Directive is used in `TestBed.overrideComponent` call). This commit adds the necessary checks to verify metadata presence before TestBed tries to (re)compile a Type.
PR Close#34204
NgModule compilation in JIT mode (that is also used in TestBed) caches module scopes on NgModule defs (using `transitiveCompileScopes` field). Module overrides (defined via TestBed.overrideModule) may invalidate this data by adding/removing items in `declarations` list. This commit forces TestBed to recalculate transitive scopes in case module overrides are present, so TestBed always gets the most up-to-date information.
PR Close#33787
While overriding providers in Ivy TestBed (via TestBed.overrideProvider call), the old providers were retained in the list, since the override takes precedence. However, presence of providers in the list might have side-effect: if a provider has the `ngOnDestroy` lifecycle hook, this hook will be registered and invoked later (when component is destroyed). This commit updates TestBed logic to clear provider list by removing the ones which have overrides.
PR Close#33706
This issue was found when debugging a test failure that was using lazy
loaded modules with the router. When doing this, the router calls
`NgModuleFactory.create` for the loaded module. This module gets a new
injector so the overrides provided in TestBed are not applied unless the
Injectable is in the providers list (which is not the case for
{providedIn...} Injectables).
PR Close#33606
Injector defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngInjectorDef to inj. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
PR Close#33151
Module defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngModuleDef to mod. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
PR Close#33142
Directive defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngDirectiveDef to dir. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
Note that the other "defs" (ngFactoryDef, etc) will be
prefixed and shortened in follow-up PRs, in an attempt to
limit how large and conflict-y this change is.
PR Close#33110
Component defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
`ngComponentDef` to `cmp`. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
Note that the other "defs" (ngDirectiveDef, etc) will be
prefixed and shortened in follow-up PRs, in an attempt to
limit how large and conflict-y this change is.
PR Close#33088
This PR updates Angular to compile with TypeScript 3.6 while retaining
compatibility with TS3.5. We achieve this by inserting several `as any`
casts for compatiblity around `ts.CompilerHost` APIs.
PR Close#32908
There are a couple scenarios that are problematic and need special
handling:
1. A user has a custom implementation of lazy-loaded modules, sets some
provider overrides, then compiles the module so it can be loaded. In a
follow-up test, the user sets different overrides for the module and
then compiles. This is problematic because we need to be sure the module
registered in the first test is not used, so we need to clear it out of
the modules list in `ng_module_factory_registration`.
2. A user has a similar lazy-loaded module factory implementation but
relies on the module being registered automatically. This can happen,
for example, as a side effect of importing the ngfactory file.
PR Close#32944
YuCheng Hu
Zhicheng WANG
JiaLiPassion
Adrian Rutkowski
Andrew Kushnir
Misko Hevery
Igor Minar
Joey Perrott
Andrew Scott
crisbeto
Judy Bogart
Matias Niemelä
Kara Erickson
Nikita Potapenko
Danny Skoog
Martin Probst