angular-cn/modules/angular2/test/facade/async_spec.js

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import {describe, it, expect, beforeEach, ddescribe, iit, xit, el,
SpyObject, AsyncTestCompleter, inject, IS_DARTIUM} from 'angular2/test_lib';
import {ObservableWrapper, EventEmitter, PromiseWrapper} from 'angular2/src/facade/async';
export function main() {
describe('EventEmitter', () => {
var emitter:EventEmitter;
beforeEach(() => {
emitter = new EventEmitter();
});
it("should call the next callback", inject([AsyncTestCompleter], (async) => {
ObservableWrapper.subscribe(emitter, (value) => {
expect(value).toEqual(99);
async.done();
});
ObservableWrapper.callNext(emitter, 99);
}));
it("should call the throw callback", inject([AsyncTestCompleter], (async) => {
ObservableWrapper.subscribe(emitter, (_) => {}, (error) => {
expect(error).toEqual("Boom");
async.done();
});
ObservableWrapper.callThrow(emitter, "Boom");
}));
it("should work when no throw callback is provided", inject([AsyncTestCompleter], (async) => {
ObservableWrapper.subscribe(emitter, (_) => {}, (_) => {
async.done();
});
ObservableWrapper.callThrow(emitter, "Boom");
}));
it("should call the return callback", inject([AsyncTestCompleter], (async) => {
ObservableWrapper.subscribe(emitter, (_) => {}, (_) => {}, () => {
async.done();
});
ObservableWrapper.callReturn(emitter);
}));
it("should subscribe to the wrapper asynchronously", () => {
var called = false;
ObservableWrapper.subscribe(emitter, (value) => {
called = true;
});
ObservableWrapper.callNext(emitter, 99);
expect(called).toBe(false);
});
//TODO: vsavkin: add tests cases
//should call dispose on the subscription if generator returns {done:true}
//should call dispose on the subscription on throw
//should call dispose on the subscription on return
});
}