angular-docs-cn/modules/angular2/test/render/dom/compiler/template_loader_spec.ts

223 lines
8.7 KiB
TypeScript

import {
AsyncTestCompleter,
beforeEach,
ddescribe,
describe,
el,
expect,
iit,
inject,
it,
xit,
} from 'angular2/test_lib';
import {DOM} from 'angular2/src/dom/dom_adapter';
import {TemplateLoader} from 'angular2/src/render/dom/compiler/template_loader';
import {StyleInliner} from 'angular2/src/render/dom/compiler/style_inliner';
import {StyleUrlResolver} from 'angular2/src/render/dom/compiler/style_url_resolver';
import {UrlResolver} from 'angular2/src/services/url_resolver';
import {ViewDefinition} from 'angular2/src/render/api';
import {PromiseWrapper, Promise} from 'angular2/src/facade/async';
import {StringWrapper, isBlank, isPresent} from 'angular2/src/facade/lang';
import {MapWrapper, ListWrapper} from 'angular2/src/facade/collection';
import {XHR} from 'angular2/src/render/xhr';
import {MockXHR} from 'angular2/src/render/xhr_mock';
export function main() {
describe('TemplateLoader', () => {
var loader, xhr, styleUrlResolver, urlResolver;
beforeEach(() => {
xhr = new MockXHR();
urlResolver = new FakeUrlResolver();
styleUrlResolver = new StyleUrlResolver(urlResolver);
let styleInliner = new StyleInliner(xhr, styleUrlResolver, urlResolver);
loader = new TemplateLoader(xhr, styleInliner, styleUrlResolver);
});
describe('html', () => {
it('should load inline templates', inject([AsyncTestCompleter], (async) => {
var template = new ViewDefinition({template: 'template template'});
loader.load(template).then((el) => {
expect(DOM.content(el)).toHaveText('template template');
async.done();
});
}));
it('should load templates through XHR', inject([AsyncTestCompleter], (async) => {
xhr.expect('base/foo.html', 'xhr template');
var template = new ViewDefinition({templateAbsUrl: 'base/foo.html'});
loader.load(template).then((el) => {
expect(DOM.content(el)).toHaveText('xhr template');
async.done();
});
xhr.flush();
}));
it('should resolve urls in styles', inject([AsyncTestCompleter], (async) => {
xhr.expect('base/foo.html',
'<style>.foo { background-image: url("double.jpg"); }</style>');
var template = new ViewDefinition({templateAbsUrl: 'base/foo.html'});
loader.load(template).then((el) => {
expect(DOM.content(el))
.toHaveText(".foo { background-image: url('/base/double.jpg'); }");
async.done();
});
xhr.flush();
}));
it('should inline styles', inject([AsyncTestCompleter], (async) => {
let xhr = new FakeXHR();
xhr.reply('base/foo.html', '<style>@import "foo.css";</style>');
xhr.reply('/base/foo.css', '/* foo.css */');
let styleInliner = new StyleInliner(xhr, styleUrlResolver, urlResolver);
let loader = new TemplateLoader(xhr, styleInliner, styleUrlResolver);
var template = new ViewDefinition({templateAbsUrl: 'base/foo.html'});
loader.load(template).then((el) => {
expect(DOM.getInnerHTML(el)).toEqual("<style>/* foo.css */\n</style>");
async.done();
});
}));
it('should return a new template element on each call',
inject([AsyncTestCompleter], (async) => {
var firstEl;
// we have only one xhr.expect, so there can only be one xhr call!
xhr.expect('base/foo.html', 'xhr template');
var template = new ViewDefinition({templateAbsUrl: 'base/foo.html'});
loader.load(template)
.then((el) => {
expect(DOM.content(el)).toHaveText('xhr template');
firstEl = el;
return loader.load(template);
})
.then((el) => {
expect(el).not.toBe(firstEl);
expect(DOM.content(el)).toHaveText('xhr template');
async.done();
});
xhr.flush();
}));
it('should throw when no template is defined', () => {
var template = new ViewDefinition({template: null, templateAbsUrl: null});
expect(() => loader.load(template))
.toThrowError('View should have either the templateUrl or template property set');
});
it('should return a rejected Promise when XHR loading fails',
inject([AsyncTestCompleter], (async) => {
xhr.expect('base/foo.html', null);
var template = new ViewDefinition({templateAbsUrl: 'base/foo.html'});
PromiseWrapper.then(loader.load(template), function(_) { throw 'Unexpected response'; },
function(error) {
expect(error.message)
.toEqual('Failed to fetch url "base/foo.html"');
async.done();
});
xhr.flush();
}));
});
describe('css', () => {
it('should load inline styles', inject([AsyncTestCompleter], (async) => {
var template = new ViewDefinition({template: 'html', styles: ['style 1', 'style 2']});
loader.load(template).then((el) => {
expect(DOM.getInnerHTML(el))
.toEqual('<style>style 1</style><style>style 2</style>html');
async.done();
});
}));
it('should resolve urls in inline styles', inject([AsyncTestCompleter], (async) => {
var template = new ViewDefinition(
{template: 'html', styles: ['.foo { background-image: url("double.jpg"); }']});
loader.load(template).then((el) => {
expect(DOM.getInnerHTML(el))
.toEqual("<style>.foo { background-image: url('/double.jpg'); }</style>html");
async.done();
});
}));
it('should load templates through XHR', inject([AsyncTestCompleter], (async) => {
xhr.expect('base/foo.html', 'xhr template');
xhr.expect('base/foo-1.css', '1');
xhr.expect('base/foo-2.css', '2');
var template = new ViewDefinition({
templateAbsUrl: 'base/foo.html',
styles: ['i1'],
styleAbsUrls: ['base/foo-1.css', 'base/foo-2.css']
});
loader.load(template).then((el) => {
expect(DOM.getInnerHTML(el))
.toEqual('<style>i1</style><style>1</style><style>2</style>xhr template');
async.done();
});
xhr.flush();
}));
it('should inline styles', inject([AsyncTestCompleter], (async) => {
let xhr = new FakeXHR();
xhr.reply('base/foo.html', '<p>template</p>');
xhr.reply('/base/foo.css', '/* foo.css */');
let styleInliner = new StyleInliner(xhr, styleUrlResolver, urlResolver);
let loader = new TemplateLoader(xhr, styleInliner, styleUrlResolver);
var template = new ViewDefinition(
{templateAbsUrl: 'base/foo.html', styles: ['@import "foo.css";']});
loader.load(template).then((el) => {
expect(DOM.getInnerHTML(el)).toEqual("<style>/* foo.css */\n</style><p>template</p>");
async.done();
});
}));
it('should return a rejected Promise when XHR loading fails',
inject([AsyncTestCompleter], (async) => {
xhr.expect('base/foo.css', null);
var template = new ViewDefinition({template: '', styleAbsUrls: ['base/foo.css']});
PromiseWrapper.then(loader.load(template), function(_) { throw 'Unexpected response'; },
function(error) {
expect(error.message)
.toEqual('Failed to fetch url "base/foo.css"');
async.done();
});
xhr.flush();
}));
});
});
}
class SomeComponent {}
class FakeUrlResolver extends UrlResolver {
constructor() { super(); }
resolve(baseUrl: string, url: string): string {
if (url.length > 0 && url[0] == '/') return url;
if (!isPresent(baseUrl)) return `/${url}`;
var parts: List<string> = baseUrl.split('/');
if (parts.length > 1) {
ListWrapper.removeLast(parts);
}
parts.push(url);
return '/' + parts.join('/');
}
}
class FakeXHR extends XHR {
_responses: Map<string, string> = new Map();
constructor() { super(); }
get(url: string): Promise<string> {
return this._responses.has(url) ? PromiseWrapper.resolve(this._responses.get(url)) :
PromiseWrapper.reject('xhr error', null);
}
reply(url: string, response: string): void { this._responses.set(url, response); }
}