angular-cn/modules/angular2/test/core/application_spec.js

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import {describe, ddescribe, it, iit, xit, xdescribe, expect, beforeEach} from 'angular2/test_lib';
import {bootstrap, appDocumentToken, appElementToken}
from 'angular2/src/core/application';
import {Component} from 'angular2/src/core/annotations/annotations';
import {DOM} from 'angular2/src/facade/dom';
import {ListWrapper} from 'angular2/src/facade/collection';
import {PromiseWrapper} from 'angular2/src/facade/async';
import {bind, Inject} from 'angular2/di';
import {Template} from 'angular2/src/core/annotations/template';
import {LifeCycle} from 'angular2/src/core/life_cycle/life_cycle';
@Component({selector: 'hello-app'})
@Template({inline: '{{greeting}} world!'})
class HelloRootCmp {
greeting:string;
constructor() {
this.greeting = 'hello';
}
}
@Component({selector: 'hello-app-2'})
@Template({inline: '{{greeting}} world, again!'})
class HelloRootCmp2 {
greeting:string;
constructor() {
this.greeting = 'hello';
}
}
@Component({selector: 'hello-app'})
@Template({inline: ''})
class HelloRootCmp3 {
appBinding;
constructor(@Inject("appBinding") appBinding) {
this.appBinding = appBinding;
}
}
@Component({selector: 'hello-app'})
@Template({inline: ''})
class HelloRootCmp4 {
lc;
constructor(@Inject(LifeCycle) lc) {
this.lc = lc;
}
}
export function main() {
var fakeDoc, el, el2, testBindings;
beforeEach(() => {
fakeDoc = DOM.createHtmlDocument();
el = DOM.createElement('hello-app', fakeDoc);
el2 = DOM.createElement('hello-app-2', fakeDoc);
DOM.appendChild(fakeDoc.body, el);
DOM.appendChild(fakeDoc.body, el2);
testBindings = [bind(appDocumentToken).toValue(fakeDoc)];
});
describe('bootstrap factory method', () => {
it('should throw if no element is found', (done) => {
var injectorPromise = bootstrap(HelloRootCmp, [], (e,t) => {throw e;});
PromiseWrapper.then(injectorPromise, null, (reason) => {
expect(reason.message).toContain(
'The app selector "hello-app" did not match any elements');
done();
});
});
it('should create an injector promise', () => {
var injectorPromise = bootstrap(HelloRootCmp, testBindings);
expect(injectorPromise).not.toBe(null);
});
it('should resolve an injector promise and contain bindings', (done) => {
var injectorPromise = bootstrap(HelloRootCmp, testBindings);
injectorPromise.then((injector) => {
expect(injector.get(appElementToken)).toBe(el);
done();
});
});
it('should provide the application component in the injector', (done) => {
var injectorPromise = bootstrap(HelloRootCmp, testBindings);
injectorPromise.then((injector) => {
expect(injector.get(HelloRootCmp)).toBeAnInstanceOf(HelloRootCmp);
done();
});
});
it('should display hello world', (done) => {
var injectorPromise = bootstrap(HelloRootCmp, testBindings);
injectorPromise.then((injector) => {
expect(injector.get(appElementToken)
.shadowRoot.childNodes[0].nodeValue).toEqual('hello world!');
done();
});
});
it('should support multiple calls to bootstrap', (done) => {
var injectorPromise1 = bootstrap(HelloRootCmp, testBindings);
var injectorPromise2 = bootstrap(HelloRootCmp2, testBindings);
PromiseWrapper.all([injectorPromise1, injectorPromise2]).then((injectors) => {
expect(injectors[0].get(appElementToken)
.shadowRoot.childNodes[0].nodeValue).toEqual('hello world!');
expect(injectors[1].get(appElementToken)
.shadowRoot.childNodes[0].nodeValue).toEqual('hello world, again!');
done();
});
});
it("should make the provided bindings available to the application component", (done) => {
var injectorPromise = bootstrap(HelloRootCmp3, [
testBindings,
bind("appBinding").toValue("BoundValue")
]);
injectorPromise.then((injector) => {
expect(injector.get(HelloRootCmp3).appBinding).toEqual("BoundValue");
done();
});
});
it("should avoid cyclic dependencies when root component requires Lifecycle through DI", (done) => {
var injectorPromise = bootstrap(HelloRootCmp4, testBindings);
injectorPromise.then((injector) => {
expect(injector.get(HelloRootCmp4).lc).toBe(injector.get(LifeCycle));
done();
});
});
});
}