/
bootstrap_spec.ts
735 lines (619 loc) Β· 25.6 KB
/
bootstrap_spec.ts
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/**
* @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 {animate, state, style, transition, trigger} from '@angular/animations';
import {DOCUMENT, isPlatformBrowser, Ι΅getDOM as getDOM} from '@angular/common';
import {ANIMATION_MODULE_TYPE, APP_INITIALIZER, Compiler, Component, createPlatformFactory, CUSTOM_ELEMENTS_SCHEMA, Directive, ErrorHandler, Inject, inject as _inject, InjectionToken, Injector, Input, LOCALE_ID, NgModule, NgModuleRef, OnDestroy, Pipe, PLATFORM_ID, PLATFORM_INITIALIZER, Provider, Sanitizer, StaticProvider, Testability, TestabilityRegistry, Type, VERSION} from '@angular/core';
import {ApplicationRef, destroyPlatform} from '@angular/core/src/application_ref';
import {Console} from '@angular/core/src/console';
import {ComponentRef} from '@angular/core/src/linker/component_factory';
import {inject, TestBed} from '@angular/core/testing';
import {Log} from '@angular/core/testing/src/testing_internal';
import {BrowserModule} from '@angular/platform-browser';
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {provideAnimations, provideNoopAnimations} from '@angular/platform-browser/animations';
import {expect} from '@angular/platform-browser/testing/src/matchers';
import {bootstrapApplication} from '../../src/browser';
@Component({selector: 'non-existent', template: ''})
class NonExistentComp {
}
@Component({selector: 'hello-app', template: '{{greeting}} world!'})
class HelloRootCmp {
greeting: string;
constructor() {
this.greeting = 'hello';
}
}
@Component({selector: 'hello-app-2', template: '{{greeting}} world, again!'})
class HelloRootCmp2 {
greeting: string;
constructor() {
this.greeting = 'hello';
}
}
@Component({selector: 'hello-app', template: ''})
class HelloRootCmp3 {
appBinding: any /** TODO #9100 */;
constructor(@Inject('appBinding') appBinding: any /** TODO #9100 */) {
this.appBinding = appBinding;
}
}
@Component({selector: 'hello-app', template: ''})
class HelloRootCmp4 {
appRef: any /** TODO #9100 */;
constructor(@Inject(ApplicationRef) appRef: ApplicationRef) {
this.appRef = appRef;
}
}
@Directive({selector: 'hello-app'})
class HelloRootDirectiveIsNotCmp {
}
@Component({selector: 'hello-app', template: ''})
class HelloOnDestroyTickCmp implements OnDestroy {
appRef: ApplicationRef;
constructor(@Inject(ApplicationRef) appRef: ApplicationRef) {
this.appRef = appRef;
}
ngOnDestroy(): void {
this.appRef.tick();
}
}
@Component({selector: 'hello-app', template: '<some-el [someProp]="true">hello world!</some-el>'})
class HelloCmpUsingCustomElement {
}
class MockConsole {
res: any[][] = [];
error(...s: any[]): void {
this.res.push(s);
}
}
class DummyConsole implements Console {
public warnings: string[] = [];
log(message: string) {}
warn(message: string) {
this.warnings.push(message);
}
}
function bootstrap(
cmpType: any, providers: Provider[] = [], platformProviders: StaticProvider[] = [],
imports: Type<any>[] = []): Promise<any> {
@NgModule({
imports: [BrowserModule, ...imports],
declarations: [cmpType],
bootstrap: [cmpType],
providers: providers,
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
}
return platformBrowserDynamic(platformProviders).bootstrapModule(TestModule);
}
{
let el: any /** TODO #9100 */, el2: any /** TODO #9100 */, testProviders: Provider[],
lightDom: any /** TODO #9100 */;
describe('bootstrap factory method', () => {
if (isNode) {
// Jasmine will throw if there are no tests.
it('should pass', () => {});
return;
}
let compilerConsole: DummyConsole;
beforeEach(() => {
TestBed.configureTestingModule({providers: [Log]});
});
beforeEach(inject([DOCUMENT], (doc: any) => {
destroyPlatform();
compilerConsole = new DummyConsole();
testProviders = [{provide: Console, useValue: compilerConsole}];
const oldRoots = doc.querySelectorAll('hello-app,hello-app-2,light-dom-el');
for (let i = 0; i < oldRoots.length; i++) {
getDOM().remove(oldRoots[i]);
}
el = getDOM().createElement('hello-app', doc);
el2 = getDOM().createElement('hello-app-2', doc);
lightDom = getDOM().createElement('light-dom-el', doc);
doc.body.appendChild(el);
doc.body.appendChild(el2);
el.appendChild(lightDom);
lightDom.textContent = 'loading';
}));
afterEach(destroyPlatform);
describe('bootstrapApplication', () => {
const NAME = new InjectionToken<string>('name');
@Component({
standalone: true,
selector: 'hello-app',
template: 'Hello from {{ name }}!',
})
class SimpleComp {
name = 'SimpleComp';
}
@Component({
standalone: true,
selector: 'hello-app-2',
template: 'Hello from {{ name }}!',
})
class SimpleComp2 {
name = 'SimpleComp2';
}
@Component({
standalone: true,
selector: 'hello-app',
template: 'Hello from {{ name }}!',
})
class ComponentWithDeps {
constructor(@Inject(NAME) public name: string) {}
}
@Component({
selector: 'hello-app-2',
template: 'Hello from {{ name }}!',
})
class NonStandaloneComp {
name = 'NonStandaloneComp';
}
@NgModule({
declarations: [NonStandaloneComp],
})
class NonStandaloneCompModule {
}
it('should work for simple standalone components', async () => {
await bootstrapApplication(SimpleComp);
expect(el.innerText).toBe('Hello from SimpleComp!');
});
it('should allow passing providers during the bootstrap', async () => {
const providers = [{provide: NAME, useValue: 'Name via DI'}];
await bootstrapApplication(ComponentWithDeps, {providers});
expect(el.innerText).toBe('Hello from Name via DI!');
});
it('should reuse existing platform', async () => {
const platformProviders = [{provide: NAME, useValue: 'Name via DI (Platform level)'}];
platformBrowserDynamic(platformProviders);
await bootstrapApplication(ComponentWithDeps);
expect(el.innerText).toBe('Hello from Name via DI (Platform level)!');
});
it('should allow bootstrapping multiple apps', async () => {
await bootstrapApplication(SimpleComp);
await bootstrapApplication(SimpleComp2);
expect(el.innerText).toBe('Hello from SimpleComp!');
expect(el2.innerText).toBe('Hello from SimpleComp2!');
});
it('should keep change detection isolated for separately bootstrapped apps', async () => {
const appRef1 = await bootstrapApplication(SimpleComp);
const appRef2 = await bootstrapApplication(SimpleComp2);
expect(el.innerText).toBe('Hello from SimpleComp!');
expect(el2.innerText).toBe('Hello from SimpleComp2!');
// Update name in both components, but trigger change detection only in the first one.
appRef1.components[0].instance.name = 'Updated SimpleComp';
appRef2.components[0].instance.name = 'Updated SimpleComp2';
// Trigger change detection for the first app.
appRef1.tick();
// Expect that the first component content is updated, but the second one remains the same.
expect(el.innerText).toBe('Hello from Updated SimpleComp!');
expect(el2.innerText).toBe('Hello from SimpleComp2!');
// Trigger change detection for the second app.
appRef2.tick();
// Now the second component should be updated as well.
expect(el.innerText).toBe('Hello from Updated SimpleComp!');
expect(el2.innerText).toBe('Hello from Updated SimpleComp2!');
});
it('should allow bootstrapping multiple standalone components within the same app',
async () => {
const appRef = await bootstrapApplication(SimpleComp);
appRef.bootstrap(SimpleComp2);
expect(el.innerText).toBe('Hello from SimpleComp!');
expect(el2.innerText).toBe('Hello from SimpleComp2!');
// Update name in both components.
appRef.components[0].instance.name = 'Updated SimpleComp';
appRef.components[1].instance.name = 'Updated SimpleComp2';
// Run change detection for the app.
appRef.tick();
// Expect both components to be updated, since they belong to the same app.
expect(el.innerText).toBe('Hello from Updated SimpleComp!');
expect(el2.innerText).toBe('Hello from Updated SimpleComp2!');
});
it('should allow bootstrapping non-standalone components within the same app', async () => {
const appRef = await bootstrapApplication(SimpleComp);
// ApplicationRef should still allow bootstrapping non-standalone
// components into the same application.
appRef.bootstrap(NonStandaloneComp);
expect(el.innerText).toBe('Hello from SimpleComp!');
expect(el2.innerText).toBe('Hello from NonStandaloneComp!');
// Update name in both components.
appRef.components[0].instance.name = 'Updated SimpleComp';
appRef.components[1].instance.name = 'Updated NonStandaloneComp';
// Run change detection for the app.
appRef.tick();
// Expect both components to be updated, since they belong to the same app.
expect(el.innerText).toBe('Hello from Updated SimpleComp!');
expect(el2.innerText).toBe('Hello from Updated NonStandaloneComp!');
});
it('should throw when trying to bootstrap a non-standalone component', () => {
const msg = 'NG0907: The NonStandaloneComp component is not marked as standalone, ' +
'but Angular expects to have a standalone component here. Please make sure the ' +
'NonStandaloneComp component has the `standalone: true` flag in the decorator.';
expect(() => bootstrapApplication(NonStandaloneComp)).toThrowError(msg);
});
it('should throw when trying to bootstrap a standalone directive', () => {
@Directive({
standalone: true,
selector: '[dir]',
})
class StandaloneDirective {
}
const msg = //
'NG0906: The StandaloneDirective is not an Angular component, ' +
'make sure it has the `@Component` decorator.';
expect(() => bootstrapApplication(StandaloneDirective)).toThrowError(msg);
});
it('should throw when trying to bootstrap a non-annotated class', () => {
class NonAnnotatedClass {}
const msg = //
'NG0906: The NonAnnotatedClass is not an Angular component, ' +
'make sure it has the `@Component` decorator.';
expect(() => bootstrapApplication(NonAnnotatedClass)).toThrowError(msg);
});
describe('with animations', () => {
@Component({
standalone: true,
selector: 'hello-app',
template: `
<div
@myAnimation
(@myAnimation.start)="onStart($event)">Hello from AnimationCmp!</div>`,
animations: [trigger(
'myAnimation', [transition('void => *', [style({opacity: 1}), animate(5)])])],
})
class AnimationCmp {
renderer = _inject(ANIMATION_MODULE_TYPE, {optional: true}) ?? 'not found';
startEvent?: {};
onStart(event: {}) {
this.startEvent = event;
}
}
it('should enable animations when using provideAnimations()', async () => {
const appRef = await bootstrapApplication(AnimationCmp, {
providers: [provideAnimations()],
});
const cmp = appRef.components[0].instance;
// Wait until animation is completed.
await new Promise(resolve => setTimeout(resolve, 10));
expect(cmp.renderer).toBe('BrowserAnimations');
expect(cmp.startEvent.triggerName).toEqual('myAnimation');
expect(cmp.startEvent.phaseName).toEqual('start');
expect(el.innerText).toBe('Hello from AnimationCmp!');
});
it('should use noop animations renderer when using provideNoopAnimations()', async () => {
const appRef = await bootstrapApplication(AnimationCmp, {
providers: [provideNoopAnimations()],
});
const cmp = appRef.components[0].instance;
// Wait until animation is completed.
await new Promise(resolve => setTimeout(resolve, 10));
expect(cmp.renderer).toBe('NoopAnimations');
expect(cmp.startEvent.triggerName).toEqual('myAnimation');
expect(cmp.startEvent.phaseName).toEqual('start');
expect(el.innerText).toBe('Hello from AnimationCmp!');
});
});
});
it('should throw if bootstrapped Directive is not a Component', done => {
const logger = new MockConsole();
const errorHandler = new ErrorHandler();
(errorHandler as any)._console = logger as any;
bootstrap(HelloRootDirectiveIsNotCmp, [
{provide: ErrorHandler, useValue: errorHandler}
]).catch((error: Error) => {
expect(error).toEqual(
new Error(`HelloRootDirectiveIsNotCmp cannot be used as an entry component.`));
done();
});
});
it('should retrieve sanitizer', inject([Injector], (injector: Injector) => {
const sanitizer: Sanitizer|null = injector.get(Sanitizer, null);
// We don't want to have sanitizer in DI. We use DI only to overwrite the
// sanitizer, but not for default one. The default one is pulled in by the Ivy
// instructions as needed.
expect(sanitizer).toBe(null);
}));
it('should throw if no element is found', done => {
const logger = new MockConsole();
const errorHandler = new ErrorHandler();
(errorHandler as any)._console = logger as any;
bootstrap(NonExistentComp, [
{provide: ErrorHandler, useValue: errorHandler}
]).then(null, (reason) => {
expect(reason.message).toContain('The selector "non-existent" did not match any elements');
done();
return null;
});
});
it('should throw if no provider', done => {
const logger = new MockConsole();
const errorHandler = new ErrorHandler();
(errorHandler as any)._console = logger as any;
class IDontExist {}
@Component({selector: 'cmp', template: 'Cmp'})
class CustomCmp {
constructor(iDontExist: IDontExist) {}
}
@Component({
selector: 'hello-app',
template: '<cmp></cmp>',
})
class RootCmp {
}
@NgModule({declarations: [CustomCmp], exports: [CustomCmp]})
class CustomModule {
}
bootstrap(RootCmp, [{provide: ErrorHandler, useValue: errorHandler}], [], [
CustomModule
]).then(null, (e: Error) => {
const errorMsg = `R3InjectorError(TestModule)[IDontExist -> IDontExist -> IDontExist]: \n`;
expect(e.message).toContain(errorMsg);
done();
return null;
});
});
if (getDOM().supportsDOMEvents) {
it('should forward the error to promise when bootstrap fails', done => {
const logger = new MockConsole();
const errorHandler = new ErrorHandler();
(errorHandler as any)._console = logger as any;
const refPromise =
bootstrap(NonExistentComp, [{provide: ErrorHandler, useValue: errorHandler}]);
refPromise.then(null, (reason: any) => {
expect(reason.message)
.toContain('The selector "non-existent" did not match any elements');
done();
});
});
it('should invoke the default exception handler when bootstrap fails', done => {
const logger = new MockConsole();
const errorHandler = new ErrorHandler();
(errorHandler as any)._console = logger as any;
const refPromise =
bootstrap(NonExistentComp, [{provide: ErrorHandler, useValue: errorHandler}]);
refPromise.then(null, (reason) => {
expect(logger.res[0].join('#'))
.toContain('ERROR#Error: The selector "non-existent" did not match any elements');
done();
return null;
});
});
}
it('should create an injector promise', async () => {
const refPromise = bootstrap(HelloRootCmp, testProviders);
expect(refPromise).toEqual(jasmine.any(Promise));
await refPromise; // complete component initialization before switching to the next test
});
it('should set platform name to browser', done => {
const refPromise = bootstrap(HelloRootCmp, testProviders);
refPromise.then((ref) => {
expect(isPlatformBrowser(ref.injector.get(PLATFORM_ID))).toBe(true);
done();
}, done.fail);
});
it('should display hello world', done => {
const refPromise = bootstrap(HelloRootCmp, testProviders);
refPromise.then((ref) => {
expect(el).toHaveText('hello world!');
expect(el.getAttribute('ng-version')).toEqual(VERSION.full);
done();
}, done.fail);
});
it('should throw a descriptive error if BrowserModule is installed again via a lazily loaded module',
done => {
@NgModule({imports: [BrowserModule]})
class AsyncModule {
}
bootstrap(HelloRootCmp, testProviders)
.then((ref: ComponentRef<HelloRootCmp>) => {
const compiler: Compiler = ref.injector.get(Compiler);
return compiler.compileModuleAsync(AsyncModule).then(factory => {
expect(() => factory.create(ref.injector))
.toThrowError(
'Providers from the `BrowserModule` have already been loaded. ' +
'If you need access to common directives such as NgIf and NgFor, ' +
'import the `CommonModule` instead.');
});
})
.then(() => done(), err => done.fail(err));
});
it('should support multiple calls to bootstrap', done => {
const refPromise1 = bootstrap(HelloRootCmp, testProviders);
const refPromise2 = bootstrap(HelloRootCmp2, testProviders);
Promise.all([refPromise1, refPromise2]).then((refs) => {
expect(el).toHaveText('hello world!');
expect(el2).toHaveText('hello world, again!');
done();
}, done.fail);
});
it('should not crash if change detection is invoked when the root component is disposed',
done => {
bootstrap(HelloOnDestroyTickCmp, testProviders).then((ref) => {
expect(() => ref.destroy()).not.toThrow();
done();
});
});
it('should unregister change detectors when components are disposed', done => {
bootstrap(HelloRootCmp, testProviders).then((ref) => {
const appRef = ref.injector.get(ApplicationRef);
ref.destroy();
expect(() => appRef.tick()).not.toThrow();
done();
}, done.fail);
});
it('should make the provided bindings available to the application component', done => {
const refPromise = bootstrap(
HelloRootCmp3, [testProviders, {provide: 'appBinding', useValue: 'BoundValue'}]);
refPromise.then((ref) => {
expect(ref.injector.get('appBinding')).toEqual('BoundValue');
done();
}, done.fail);
});
it('should not override locale provided during bootstrap', done => {
const refPromise =
bootstrap(HelloRootCmp, [testProviders], [{provide: LOCALE_ID, useValue: 'fr-FR'}]);
refPromise.then(ref => {
expect(ref.injector.get(LOCALE_ID)).toEqual('fr-FR');
done();
}, done.fail);
});
it('should avoid cyclic dependencies when root component requires Lifecycle through DI',
done => {
const refPromise = bootstrap(HelloRootCmp4, testProviders);
refPromise.then((ref) => {
const appRef = ref.injector.get(ApplicationRef);
expect(appRef).toBeDefined();
done();
}, done.fail);
});
it('should run platform initializers', done => {
inject([Log], (log: Log) => {
const p = createPlatformFactory(platformBrowserDynamic, 'someName', [
{provide: PLATFORM_INITIALIZER, useValue: log.fn('platform_init1'), multi: true},
{provide: PLATFORM_INITIALIZER, useValue: log.fn('platform_init2'), multi: true}
])();
@NgModule({
imports: [BrowserModule],
providers: [
{provide: APP_INITIALIZER, useValue: log.fn('app_init1'), multi: true},
{provide: APP_INITIALIZER, useValue: log.fn('app_init2'), multi: true}
]
})
class SomeModule {
ngDoBootstrap() {}
}
expect(log.result()).toEqual('platform_init1; platform_init2');
log.clear();
p.bootstrapModule(SomeModule).then(() => {
expect(log.result()).toEqual('app_init1; app_init2');
done();
}, done.fail);
})();
});
it('should remove styles when transitioning from a server render', done => {
@Component({
selector: 'root',
template: 'root',
})
class RootCmp {
}
@NgModule({
bootstrap: [RootCmp],
declarations: [RootCmp],
imports: [BrowserModule.withServerTransition({appId: 'my-app'})],
})
class TestModule {
}
// First, set up styles to be removed.
const dom = getDOM();
const platform = platformBrowserDynamic();
const document = platform.injector.get(DOCUMENT);
const style = dom.createElement('style', document);
style.setAttribute('ng-transition', 'my-app');
document.head.appendChild(style);
const root = dom.createElement('root', document);
document.body.appendChild(root);
platform.bootstrapModule(TestModule).then(() => {
const styles: HTMLElement[] =
Array.prototype.slice.apply(document.getElementsByTagName('style') || []);
styles.forEach(style => {
expect(style.getAttribute('ng-transition')).not.toBe('my-app');
});
done();
}, done.fail);
});
it('should register each application with the testability registry', async () => {
const ngModuleRef1: NgModuleRef<unknown> = await bootstrap(HelloRootCmp, testProviders);
const ngModuleRef2: NgModuleRef<unknown> = await bootstrap(HelloRootCmp2, testProviders);
// The `TestabilityRegistry` is provided in the "platform", so the same instance is available
// to both `NgModuleRef`s and it can be retrieved from any ref (we use the first one).
const registry = ngModuleRef1.injector.get(TestabilityRegistry);
expect(registry.findTestabilityInTree(el)).toEqual(ngModuleRef1.injector.get(Testability));
expect(registry.findTestabilityInTree(el2)).toEqual(ngModuleRef2.injector.get(Testability));
});
it('should allow to pass schemas', done => {
bootstrap(HelloCmpUsingCustomElement, testProviders).then(() => {
expect(el).toHaveText('hello world!');
done();
}, done.fail);
});
describe('change detection', () => {
const log: string[] = [];
@Component({
selector: 'hello-app',
template: '<div id="button-a" (click)="onClick()">{{title}}</div>',
})
class CompA {
title: string = '';
ngDoCheck() {
log.push('CompA:ngDoCheck');
}
onClick() {
this.title = 'CompA';
log.push('CompA:onClick');
}
}
@Component({
selector: 'hello-app-2',
template: '<div id="button-b" (click)="onClick()">{{title}}</div>',
})
class CompB {
title: string = '';
ngDoCheck() {
log.push('CompB:ngDoCheck');
}
onClick() {
this.title = 'CompB';
log.push('CompB:onClick');
}
}
it('should be triggered for all bootstrapped components in case change happens in one of them',
done => {
@NgModule({
imports: [BrowserModule],
declarations: [CompA, CompB],
bootstrap: [CompA, CompB],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModuleA {
}
platformBrowserDynamic().bootstrapModule(TestModuleA).then((ref) => {
log.length = 0;
el.querySelectorAll('#button-a')[0].click();
expect(log).toContain('CompA:onClick');
expect(log).toContain('CompA:ngDoCheck');
expect(log).toContain('CompB:ngDoCheck');
log.length = 0;
el2.querySelectorAll('#button-b')[0].click();
expect(log).toContain('CompB:onClick');
expect(log).toContain('CompA:ngDoCheck');
expect(log).toContain('CompB:ngDoCheck');
done();
}, done.fail);
});
it('should work in isolation for each component bootstrapped individually', done => {
const refPromise1 = bootstrap(CompA);
const refPromise2 = bootstrap(CompB);
Promise.all([refPromise1, refPromise2]).then((refs) => {
log.length = 0;
el.querySelectorAll('#button-a')[0].click();
expect(log).toContain('CompA:onClick');
expect(log).toContain('CompA:ngDoCheck');
expect(log).not.toContain('CompB:ngDoCheck');
log.length = 0;
el2.querySelectorAll('#button-b')[0].click();
expect(log).toContain('CompB:onClick');
expect(log).toContain('CompB:ngDoCheck');
expect(log).not.toContain('CompA:ngDoCheck');
done();
}, done.fail);
});
});
});
}