angular-docs-cn/modules/angular2/test/mock/xhr_mock_spec.js

111 lines
3.1 KiB
JavaScript

import {describe, beforeEach, it, expect, ddescribe, iit, el, IS_DARTIUM} from 'angular2/test_lib';
import {XHRMock} from 'angular2/src/mock/xhr_mock';
import {PromiseWrapper, Promise} from 'angular2/src/facade/async';
import {isPresent} from 'angular2/src/facade/lang';
export function main() {
describe('XHRMock', () => {
var xhr;
beforeEach(() => {
xhr = new XHRMock();
});
function expectResponse(request: Promise, url: string, response: string, done = null) {
function onResponse(text: string) {
if (response === null) {
throw `Unexpected response ${url} -> ${text}`;
} else {
expect(text).toEqual(response);
if (isPresent(done)) done();
}
}
function onError(error: string) {
if (response !== null) {
throw `Unexpected error ${url}`;
} else {
expect(error).toEqual(`Failed to load ${url}`);
if (isPresent(done)) done();
}
}
PromiseWrapper.then(request, onResponse, onError);
}
it('should return a response from the definitions', (done) => {
var url = '/foo';
var response = 'bar';
xhr.when(url, response);
expectResponse(xhr.get(url), url, response, done);
xhr.flush();
});
it('should return an error from the definitions', (done) => {
var url = '/foo';
var response = null;
xhr.when(url, response);
expectResponse(xhr.get(url), url, response, done);
xhr.flush();
});
it('should return a response from the expectations', (done) => {
var url = '/foo';
var response = 'bar';
xhr.expect(url, response);
expectResponse(xhr.get(url), url, response, done);
xhr.flush();
});
it('should return an error from the expectations', (done) => {
var url = '/foo';
var response = null;
xhr.expect(url, response);
expectResponse(xhr.get(url), url, response, done);
xhr.flush();
});
it('should not reuse expectations', () => {
var url = '/foo';
var response = 'bar';
xhr.expect(url, response);
xhr.get(url);
xhr.get(url);
expect(() => {
xhr.flush();
}).toThrowError('Unexpected request /foo');
});
it('should return expectations before definitions', (done) => {
var url = '/foo';
xhr.when(url, 'when');
xhr.expect(url, 'expect');
expectResponse(xhr.get(url), url, 'expect');
expectResponse(xhr.get(url), url, 'when', done);
xhr.flush();
});
it('should throw when there is no definitions or expectations', () => {
xhr.get('/foo');
expect(() => {
xhr.flush();
}).toThrowError('Unexpected request /foo');
});
it('should throw when flush is called without any pending requests', () => {
expect(() => {
xhr.flush();
}).toThrowError('No pending requests to flush');
});
it('should throw on unstatisfied expectations', () => {
xhr.expect('/foo', 'bar');
xhr.when('/bar', 'foo');
xhr.get('/bar');
expect(() => {
xhr.flush();
}).toThrowError('Unsatisfied requests: /foo');
});
});
}