angular-cn/packages/compiler/test/resource_loader_mock_spec.ts

125 lines
4.2 KiB
TypeScript

/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {MockResourceLoader} from '@angular/compiler/testing/src/resource_loader_mock';
import {AsyncTestCompleter, beforeEach, describe, expect, inject, it} from '@angular/core/testing/src/testing_internal';
{
describe('MockResourceLoader', () => {
let resourceLoader: MockResourceLoader;
beforeEach(() => {
resourceLoader = new MockResourceLoader();
});
function expectResponse(
request: Promise<string>, url: string, response: string, done: () => void = null!) {
function onResponse(text: string): string {
if (response === null) {
throw `Unexpected response ${url} -> ${text}`;
} else {
expect(text).toEqual(response);
if (done != null) done();
}
return text;
}
function onError(error: string): string {
if (response !== null) {
throw `Unexpected error ${url}`;
} else {
expect(error).toEqual(`Failed to load ${url}`);
if (done != null) done();
}
return error;
}
request.then(onResponse, onError);
}
it('should return a response from the definitions',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const url = '/foo';
const response = 'bar';
resourceLoader.when(url, response);
expectResponse(resourceLoader.get(url), url, response, () => async.done());
resourceLoader.flush();
}));
it('should return an error from the definitions',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const url = '/foo';
const response: string = null!;
resourceLoader.when(url, response);
expectResponse(resourceLoader.get(url), url, response, () => async.done());
resourceLoader.flush();
}));
it('should return a response from the expectations',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const url = '/foo';
const response = 'bar';
resourceLoader.expect(url, response);
expectResponse(resourceLoader.get(url), url, response, () => async.done());
resourceLoader.flush();
}));
it('should return an error from the expectations',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const url = '/foo';
const response: string = null!;
resourceLoader.expect(url, response);
expectResponse(resourceLoader.get(url), url, response, () => async.done());
resourceLoader.flush();
}));
it('should not reuse expectations', () => {
const url = '/foo';
const response = 'bar';
resourceLoader.expect(url, response);
resourceLoader.get(url);
resourceLoader.get(url);
expect(() => {
resourceLoader.flush();
}).toThrowError('Unexpected request /foo');
});
it('should return expectations before definitions',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const url = '/foo';
resourceLoader.when(url, 'when');
resourceLoader.expect(url, 'expect');
expectResponse(resourceLoader.get(url), url, 'expect');
expectResponse(resourceLoader.get(url), url, 'when', () => async.done());
resourceLoader.flush();
}));
it('should throw when there is no definitions or expectations', () => {
resourceLoader.get('/foo');
expect(() => {
resourceLoader.flush();
}).toThrowError('Unexpected request /foo');
});
it('should throw when flush is called without any pending requests', () => {
expect(() => {
resourceLoader.flush();
}).toThrowError('No pending requests to flush');
});
it('should throw on unsatisfied expectations', () => {
resourceLoader.expect('/foo', 'bar');
resourceLoader.when('/bar', 'foo');
resourceLoader.get('/bar');
expect(() => {
resourceLoader.flush();
}).toThrowError('Unsatisfied requests: /foo');
});
});
}