angular-docs-cn/modules/angular2/test/platform/browser/bootstrap_spec.ts

264 lines
9.4 KiB
TypeScript

import {
AsyncTestCompleter,
beforeEach,
afterEach,
ddescribe,
describe,
expect,
iit,
inject,
it,
xdescribe,
Log,
xit
} from 'angular2/testing_internal';
import {IS_DART, isPresent, stringify} from 'angular2/src/facade/lang';
import {bootstrap} from 'angular2/platform/browser';
import {ApplicationRef} from 'angular2/src/core/application_ref';
import {Console} from 'angular2/src/core/console';
import {Component, Directive, View, OnDestroy, platform} from 'angular2/core';
import {BROWSER_PROVIDERS, BROWSER_APP_PROVIDERS} from 'angular2/platform/browser';
import {DOM} from 'angular2/src/platform/dom/dom_adapter';
import {DOCUMENT} from 'angular2/src/platform/dom/dom_tokens';
import {PromiseWrapper} from 'angular2/src/facade/async';
import {provide, Inject, Injector, PLATFORM_INITIALIZER, APP_INITIALIZER} from 'angular2/core';
import {disposePlatform} from 'angular2/src/core/application_ref';
import {ExceptionHandler} from 'angular2/src/facade/exceptions';
import {Testability, TestabilityRegistry} from 'angular2/src/core/testability/testability';
import {ComponentRef_, ComponentRef} from "angular2/src/core/linker/dynamic_component_loader";
@Component({selector: 'hello-app'})
@View({template: '{{greeting}} world!'})
class HelloRootCmp {
greeting: string;
constructor() { this.greeting = 'hello'; }
}
@Component({selector: 'hello-app'})
@View({template: 'before: <ng-content></ng-content> after: done'})
class HelloRootCmpContent {
constructor() {}
}
@Component({selector: 'hello-app-2'})
@View({template: '{{greeting}} world, again!'})
class HelloRootCmp2 {
greeting: string;
constructor() { this.greeting = 'hello'; }
}
@Component({selector: 'hello-app'})
@View({template: ''})
class HelloRootCmp3 {
appBinding;
constructor(@Inject("appBinding") appBinding) { this.appBinding = appBinding; }
}
@Component({selector: 'hello-app'})
@View({template: ''})
class HelloRootCmp4 {
appRef;
constructor(@Inject(ApplicationRef) appRef) { this.appRef = appRef; }
}
@Component({selector: 'hello-app'})
class HelloRootMissingTemplate {
}
@Directive({selector: 'hello-app'})
class HelloRootDirectiveIsNotCmp {
}
@Component({selector: 'hello-app'})
@View({template: ''})
class HelloOnDestroyTickCmp implements OnDestroy {
appRef: ApplicationRef;
constructor(@Inject(ApplicationRef) appRef) { 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) {}
}
export function main() {
var fakeDoc, el, el2, testProviders, lightDom;
describe('bootstrap factory method', () => {
beforeEach(() => {
fakeDoc = DOM.createHtmlDocument();
el = DOM.createElement('hello-app', fakeDoc);
el2 = DOM.createElement('hello-app-2', fakeDoc);
lightDom = DOM.createElement('light-dom-el', fakeDoc);
DOM.appendChild(fakeDoc.body, el);
DOM.appendChild(fakeDoc.body, el2);
DOM.appendChild(el, lightDom);
DOM.setText(lightDom, 'loading');
testProviders =
[provide(DOCUMENT, {useValue: fakeDoc}), provide(Console, {useClass: DummyConsole})];
});
afterEach(disposePlatform);
it('should throw if bootstrapped Directive is not a Component',
inject([AsyncTestCompleter], (async) => {
var logger = new _ArrayLogger();
var exceptionHandler = new ExceptionHandler(logger, false);
var refPromise =
bootstrap(HelloRootDirectiveIsNotCmp,
[testProviders, provide(ExceptionHandler, {useValue: exceptionHandler})]);
PromiseWrapper.then(refPromise, null, (exception) => {
expect(exception).toContainError(
`Could not compile '${stringify(HelloRootDirectiveIsNotCmp)}' because it is not a component.`);
expect(logger.res.join("")).toContain("Could not compile");
async.done();
return null;
});
}));
it('should throw if no element is found', inject([AsyncTestCompleter], (async) => {
var logger = new _ArrayLogger();
var exceptionHandler = new ExceptionHandler(logger, !IS_DART);
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 (DOM.supportsDOMEvents()) {
it('should invoke the default exception handler when bootstrap fails',
inject([AsyncTestCompleter], (async) => {
var logger = new _ArrayLogger();
var exceptionHandler = new ExceptionHandler(logger, !IS_DART);
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) => {
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) => {
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) => {
bootstrap(HelloOnDestroyTickCmp, testProviders)
.then((ref) => {
expect(() => ref.dispose()).not.toThrow();
async.done();
});
}));
it('should unregister change detectors when components are disposed',
inject([AsyncTestCompleter], (async) => {
var app = platform(BROWSER_PROVIDERS).application([BROWSER_APP_PROVIDERS, testProviders]);
app.bootstrap(HelloRootCmp)
.then((ref) => {
ref.dispose();
expect(() => app.tick()).not.toThrow();
async.done();
});
}));
it("should make the provided bindings available to the application component",
inject([AsyncTestCompleter], (async) => {
var refPromise = bootstrap(
HelloRootCmp3, [testProviders, provide("appBinding", {useValue: "BoundValue"})]);
refPromise.then((ref) => {
expect(ref.hostComponent.appBinding).toEqual("BoundValue");
async.done();
});
}));
it("should avoid cyclic dependencies when root component requires Lifecycle through DI",
inject([AsyncTestCompleter], (async) => {
var refPromise = bootstrap(HelloRootCmp4, testProviders);
refPromise.then((ref) => {
expect(ref.hostComponent.appRef).toBe((<ComponentRef_>ref).injector.get(ApplicationRef));
async.done();
});
}));
it("should run platform initializers", inject([Log], (log: Log) => {
let p = platform([
BROWSER_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();
p.application([
BROWSER_APP_PROVIDERS,
provide(APP_INITIALIZER, {useValue: log.fn("app_init1"), multi: true}),
provide(APP_INITIALIZER, {useValue: log.fn("app_init2"), multi: true})
]);
expect(log.result()).toEqual("app_init1; app_init2");
}));
it('should register each application with the testability registry',
inject([AsyncTestCompleter], (async) => {
var refPromise1: Promise<ComponentRef> = bootstrap(HelloRootCmp, testProviders);
var refPromise2: Promise<ComponentRef> = bootstrap(HelloRootCmp2, testProviders);
PromiseWrapper.all([refPromise1, refPromise2])
.then((refs: ComponentRef[]) => {
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();
});
});
}));
});
}