angular-cn/packages/platform-browser/test/browser/bootstrap_spec.ts

561 lines
21 KiB
TypeScript

/**
* @license
* Copyright Google Inc. 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 {DOCUMENT, isPlatformBrowser, ɵgetDOM as getDOM} from '@angular/common';
import {APP_INITIALIZER, CUSTOM_ELEMENTS_SCHEMA, Compiler, Component, Directive, ErrorHandler, Inject, Injector, Input, LOCALE_ID, NgModule, OnDestroy, PLATFORM_ID, PLATFORM_INITIALIZER, Pipe, Provider, Sanitizer, StaticProvider, Type, VERSION, createPlatformFactory} 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 {Testability, TestabilityRegistry} from '@angular/core/src/testability/testability';
import {AsyncTestCompleter, Log, afterEach, beforeEach, beforeEachProviders, describe, inject, it} from '@angular/core/testing/src/testing_internal';
import {BrowserModule} from '@angular/platform-browser';
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {expect} from '@angular/platform-browser/testing/src/matchers';
import {ivyEnabled, modifiedInIvy, onlyInIvy} from '@angular/private/testing';
@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', template: 'before: <ng-content></ng-content> after: done'})
class HelloRootCmpContent {
constructor() {}
}
@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; }
}
@Component({selector: 'hello-app'})
class HelloRootMissingTemplate {
}
@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', templateUrl: './sometemplate.html'})
class HelloUrlCmp {
greeting = 'hello';
}
@Directive({selector: '[someDir]', host: {'[title]': 'someDir'}})
class SomeDirective {
// TODO(issue/24571): remove '!'.
@Input()
someDir !: string;
}
@Pipe({name: 'somePipe'})
class SomePipe {
transform(value: string): any { return `transformed ${value}`; }
}
@Component({selector: 'hello-app', template: `<div [someDir]="'someValue' | somePipe"></div>`})
class HelloCmpUsingPlatformDirectiveAndPipe {
show: boolean = false;
}
@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); }
}
class TestModule {}
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) return;
let compilerConsole: DummyConsole;
beforeEachProviders(() => { return [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);
// TODO(misko): can't use `modifiedInIvy.it` because the `it` is somehow special here.
modifiedInIvy('bootstrapping non-Component throws in View Engine').isEnabled &&
it('should throw if bootstrapped Directive is not a Component',
inject([AsyncTestCompleter], (done: AsyncTestCompleter) => {
const logger = new MockConsole();
const errorHandler = new ErrorHandler();
(errorHandler as any)._console = logger as any;
expect(
() => bootstrap(
HelloRootDirectiveIsNotCmp, [{provide: ErrorHandler, useValue: errorHandler}]))
.toThrowError(`HelloRootDirectiveIsNotCmp cannot be used as an entry component.`);
done.done();
}));
// TODO(misko): can't use `onlyInIvy.it` because the `it` is somehow special here.
onlyInIvy('bootstrapping non-Component rejects Promise in Ivy').isEnabled &&
it('should throw if bootstrapped Directive is not a Component',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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.`));
async.done();
});
}));
it('should retrieve sanitizer', inject([Injector], (injector: Injector) => {
const sanitizer: Sanitizer|null = injector.get(Sanitizer, null);
if (ivyEnabled) {
// In Ivy 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);
} else {
// In VE we always need to have Sanitizer available.
expect(sanitizer).not.toBe(null);
}
}));
it('should throw if no element is found',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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');
async.done();
return null;
});
}));
it('should throw if no provider', inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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) => {
let errorMsg: string;
if (ivyEnabled) {
errorMsg = `R3InjectorError(TestModule)[IDontExist -> IDontExist -> IDontExist]: \n`;
} else {
errorMsg = `StaticInjectorError(TestModule)[CustomCmp -> IDontExist]: \n` +
' StaticInjectorError(Platform: core)[CustomCmp -> IDontExist]: \n' +
' NullInjectorError: No provider for IDontExist!';
}
expect(e.message).toContain(errorMsg);
async.done();
return null;
});
}));
if (getDOM().supportsDOMEvents()) {
it('should forward the error to promise when bootstrap fails',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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');
async.done();
});
}));
it('should invoke the default exception handler when bootstrap fails',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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');
async.done();
return null;
});
}));
}
it('should create an injector promise', () => {
const refPromise = bootstrap(HelloRootCmp, testProviders);
expect(refPromise).toEqual(jasmine.any(Promise));
});
it('should set platform name to browser',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const refPromise = bootstrap(HelloRootCmp, testProviders);
refPromise.then((ref) => {
expect(isPlatformBrowser(ref.injector.get(PLATFORM_ID))).toBe(true);
async.done();
});
}));
it('should display hello world', inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const refPromise = bootstrap(HelloRootCmp, testProviders);
refPromise.then((ref) => {
expect(el).toHaveText('hello world!');
expect(el.getAttribute('ng-version')).toEqual(VERSION.full);
async.done();
});
}));
it('should throw a descriptive error if BrowserModule is installed again via a lazily loaded module',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
@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(
`BrowserModule has already been loaded. If you need access to common directives such as NgIf and NgFor from a lazy loaded module, import CommonModule instead.`);
});
})
.then(() => async.done(), err => async.fail(err));
}));
it('should support multiple calls to bootstrap',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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!');
async.done();
});
}));
it('should not crash if change detection is invoked when the root component is disposed',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
bootstrap(HelloOnDestroyTickCmp, testProviders).then((ref) => {
expect(() => ref.destroy()).not.toThrow();
async.done();
});
}));
it('should unregister change detectors when components are disposed',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
bootstrap(HelloRootCmp, testProviders).then((ref) => {
const appRef = ref.injector.get(ApplicationRef);
ref.destroy();
expect(() => appRef.tick()).not.toThrow();
async.done();
});
}));
it('should make the provided bindings available to the application component',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const refPromise = bootstrap(
HelloRootCmp3, [testProviders, {provide: 'appBinding', useValue: 'BoundValue'}]);
refPromise.then((ref) => {
expect(ref.injector.get('appBinding')).toEqual('BoundValue');
async.done();
});
}));
it('should not override locale provided during bootstrap',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const refPromise =
bootstrap(HelloRootCmp, [testProviders], [{provide: LOCALE_ID, useValue: 'fr-FR'}]);
refPromise.then(ref => {
expect(ref.injector.get(LOCALE_ID)).toEqual('fr-FR');
async.done();
});
}));
it('should avoid cyclic dependencies when root component requires Lifecycle through DI',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const refPromise = bootstrap(HelloRootCmp4, testProviders);
refPromise.then((ref) => {
const appRef = ref.injector.get(ApplicationRef);
expect(appRef).toBeDefined();
async.done();
});
}));
it('should run platform initializers',
inject([Log, AsyncTestCompleter], (log: Log, async: AsyncTestCompleter) => {
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');
async.done();
});
}));
it('should remove styles when transitioning from a server render',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
@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'); });
async.done();
});
}));
it('should register each application with the testability registry',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const refPromise1: Promise<ComponentRef<any>> = bootstrap(HelloRootCmp, testProviders);
const refPromise2: Promise<ComponentRef<any>> = bootstrap(HelloRootCmp2, testProviders);
Promise.all([refPromise1, refPromise2]).then((refs: ComponentRef<any>[]) => {
const registry = refs[0].injector.get(TestabilityRegistry);
const testabilities =
[refs[0].injector.get(Testability), refs[1].injector.get(Testability)];
Promise.all(testabilities).then((testabilities: Testability[]) => {
expect(registry.findTestabilityInTree(el)).toEqual(testabilities[0]);
expect(registry.findTestabilityInTree(el2)).toEqual(testabilities[1]);
async.done();
});
});
}));
it('should allow to pass schemas', inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
bootstrap(HelloCmpUsingCustomElement, testProviders).then((compRef) => {
expect(el).toHaveText('hello world!');
async.done();
});
}));
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',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
@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');
async.done();
});
}));
it('should work in isolation for each component bootstrapped individually',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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');
async.done();
});
}));
});
});
}