angular-docs-cn/modules/@angular/platform-browser/test/browser/bootstrap_spec.ts

286 lines
11 KiB
TypeScript

import {
beforeEach,
afterEach,
describe,
expect,
inject,
it,
AsyncTestCompleter
} from "@angular/core/testing/testing_internal";
import {Log} from "@angular/core/testing";
import {stringify} from "../../src/facade/lang";
import {
BROWSER_PLATFORM_PROVIDERS,
BROWSER_APP_PROVIDERS,
BROWSER_APP_COMPILER_PROVIDERS,
bootstrap
} from "@angular/platform-browser";
import {ApplicationRef, disposePlatform} from "@angular/core/src/application_ref";
import {Console} from "@angular/core/src/console";
import {
Component,
Directive,
OnDestroy,
provide,
Inject,
PLATFORM_INITIALIZER,
APP_INITIALIZER,
coreLoadAndBootstrap,
createPlatform,
ReflectiveInjector,
ExceptionHandler
} from "@angular/core";
import {getDOM} from "@angular/platform-browser/src/dom/dom_adapter";
import {DOCUMENT} from "@angular/platform-browser/src/dom/dom_tokens";
import {PromiseWrapper} from "../../src/facade/async";
import {Testability, TestabilityRegistry} from "@angular/core/src/testability/testability";
import {ComponentRef} from "@angular/core/src/linker/component_factory";
@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: any /** TODO #9100 */) { 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: any /** TODO #9100 */) { this.appRef = appRef; }
ngOnDestroy(): void { this.appRef.tick(); }
}
class _ArrayLogger {
res: any[] = [];
log(s: any): void { this.res.push(s); }
logError(s: any): void { this.res.push(s); }
logGroup(s: any): void { this.res.push(s); }
logGroupEnd(){};
}
class DummyConsole implements Console {
log(message: any /** TODO #9100 */) {}
warn(message: any /** TODO #9100 */) {}
}
export function main() {
var fakeDoc: any /** TODO #9100 */, el: any /** TODO #9100 */, el2: any /** TODO #9100 */, testProviders: any /** TODO #9100 */, lightDom: any /** TODO #9100 */;
describe('bootstrap factory method', () => {
beforeEach(() => {
disposePlatform();
fakeDoc = getDOM().createHtmlDocument();
el = getDOM().createElement('hello-app', fakeDoc);
el2 = getDOM().createElement('hello-app-2', fakeDoc);
lightDom = getDOM().createElement('light-dom-el', fakeDoc);
getDOM().appendChild(fakeDoc.body, el);
getDOM().appendChild(fakeDoc.body, el2);
getDOM().appendChild(el, lightDom);
getDOM().setText(lightDom, 'loading');
testProviders =
[{provide: DOCUMENT, useValue: fakeDoc}, {provide: Console, useClass: DummyConsole}];
});
afterEach(disposePlatform);
it('should throw if bootstrapped Directive is not a Component', () => {
var logger = new _ArrayLogger();
var exceptionHandler = new ExceptionHandler(logger, false);
expect(
() => bootstrap(HelloRootDirectiveIsNotCmp,
[testProviders, {provide: ExceptionHandler, useValue: exceptionHandler}]))
.toThrowError(
`Could not compile '${stringify(HelloRootDirectiveIsNotCmp)}' because it is not a component.`);
expect(logger.res.join("")).toContain("Could not compile");
});
it('should throw if no element is found', inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
var logger = new _ArrayLogger();
var exceptionHandler = new ExceptionHandler(logger, false);
var refPromise =
bootstrap(HelloRootCmp, [{provide: ExceptionHandler, useValue: exceptionHandler}]);
PromiseWrapper.then(refPromise, null, (reason) => {
expect(reason.message).toContain('The selector "hello-app" did not match any elements');
async.done();
return null;
});
}));
if (getDOM().supportsDOMEvents()) {
it('should forward the error to promise when bootstrap fails',
inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
// Skip for dart since it causes a confusing error message in console when test passes.
var logger = new _ArrayLogger();
var exceptionHandler = new ExceptionHandler(logger, false);
var refPromise =
bootstrap(HelloRootCmp, [{provide: ExceptionHandler, useValue: exceptionHandler}]);
PromiseWrapper.then(refPromise, null, (reason: any) => {
expect(reason.message)
.toContain('The selector "hello-app" did not match any elements');
async.done();
});
}));
it('should invoke the default exception handler when bootstrap fails',
inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
var logger = new _ArrayLogger();
var exceptionHandler = new ExceptionHandler(logger, false);
var refPromise =
bootstrap(HelloRootCmp, [{provide: ExceptionHandler, useValue: exceptionHandler}]);
PromiseWrapper.then(refPromise, null, (reason) => {
expect(logger.res.join(""))
.toContain('The selector "hello-app" did not match any elements');
async.done();
return null;
});
}));
}
it('should create an injector promise', () => {
var refPromise = bootstrap(HelloRootCmp, testProviders);
expect(refPromise).not.toBe(null);
});
it('should display hello world', inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
var refPromise = bootstrap(HelloRootCmp, testProviders);
refPromise.then((ref) => {
expect(el).toHaveText('hello world!');
async.done();
});
}));
it('should support multiple calls to bootstrap', inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
var refPromise1 = bootstrap(HelloRootCmp, testProviders);
var refPromise2 = bootstrap(HelloRootCmp2, testProviders);
PromiseWrapper.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: any /** TODO #9100 */) => {
bootstrap(HelloOnDestroyTickCmp, testProviders)
.then((ref) => {
expect(() => ref.destroy()).not.toThrow();
async.done();
});
}));
it('should unregister change detectors when components are disposed',
inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
var platform = createPlatform(ReflectiveInjector.resolveAndCreate(BROWSER_PLATFORM_PROVIDERS));
var app =
ReflectiveInjector.resolveAndCreate([BROWSER_APP_PROVIDERS, BROWSER_APP_COMPILER_PROVIDERS, testProviders],
platform.injector)
.get(ApplicationRef);
coreLoadAndBootstrap(HelloRootCmp, app.injector)
.then((ref) => {
ref.destroy();
expect(() => app.tick()).not.toThrow();
async.done();
});
}));
it("should make the provided bindings available to the application component",
inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
var refPromise = bootstrap(
HelloRootCmp3, [testProviders, {provide: "appBinding", useValue: "BoundValue"}]);
refPromise.then((ref) => {
expect(ref.instance.appBinding).toEqual("BoundValue");
async.done();
});
}));
it("should avoid cyclic dependencies when root component requires Lifecycle through DI",
inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
var refPromise = bootstrap(HelloRootCmp4, testProviders);
refPromise.then((ref) => {
expect(ref.instance.appRef).toBe(ref.injector.get(ApplicationRef));
async.done();
});
}));
it("should run platform initializers", inject([Log], (log: Log) => {
let p = createPlatform(ReflectiveInjector.resolveAndCreate([
BROWSER_PLATFORM_PROVIDERS,
{provide: PLATFORM_INITIALIZER, useValue: log.fn("platform_init1"), multi: true},
{provide: PLATFORM_INITIALIZER, useValue: log.fn("platform_init2"), multi: true}
]));
expect(log.result()).toEqual("platform_init1; platform_init2");
log.clear();
var a = ReflectiveInjector.resolveAndCreate(
[
BROWSER_APP_PROVIDERS,
{provide: APP_INITIALIZER, useValue: log.fn("app_init1"), multi: true},
{provide: APP_INITIALIZER, useValue: log.fn("app_init2"), multi: true}
],
p.injector);
a.get(ApplicationRef);
expect(log.result()).toEqual("app_init1; app_init2");
}));
it('should register each application with the testability registry',
inject([AsyncTestCompleter], (async: any /** TODO #9100 */) => {
var refPromise1: Promise<ComponentRef<any>> = bootstrap(HelloRootCmp, testProviders);
var refPromise2: Promise<ComponentRef<any>> = bootstrap(HelloRootCmp2, testProviders);
PromiseWrapper.all([refPromise1, refPromise2])
.then((refs: ComponentRef<any>[]) => {
var registry = refs[0].injector.get(TestabilityRegistry);
var testabilities =
[refs[0].injector.get(Testability), refs[1].injector.get(Testability)];
PromiseWrapper.all(testabilities)
.then((testabilities: Testability[]) => {
expect(registry.findTestabilityInTree(el)).toEqual(testabilities[0]);
expect(registry.findTestabilityInTree(el2)).toEqual(testabilities[1]);
async.done();
});
});
}));
});
}