angular-cn/modules/angular2/test/directives/for_spec.js

278 lines
8.1 KiB
JavaScript

import {
AsyncTestCompleter,
beforeEach,
beforeEachBindings,
ddescribe,
describe,
el,
expect,
iit,
inject,
it,
xit,
} from 'angular2/test_lib';
import {DOM} from 'angular2/src/dom/dom_adapter';
import {ListWrapper} from 'angular2/src/facade/collection';
import {Injector} from 'angular2/di';
import {Compiler} from 'angular2/src/core/compiler/compiler';
import {TemplateResolver} from 'angular2/src/core/compiler/template_resolver';
import {Template} from 'angular2/src/core/annotations/template';
import {Decorator, Component, Viewport} from 'angular2/src/core/annotations/annotations';
import {MockTemplateResolver} from 'angular2/src/mock/template_resolver_mock';
import {For} from 'angular2/src/directives/for';
import {bind} from 'angular2/di';
export function main() {
describe('for', () => {
var view, cd, compiler, component, tplResolver;
beforeEachBindings(() => [
bind(TemplateResolver).toClass(MockTemplateResolver),
]);
beforeEach(inject([Compiler, TemplateResolver], (c, t) => {
compiler = c;
tplResolver = t;
}));
function createView(pv) {
component = new TestComponent();
view = pv.instantiate(null, null);
view.hydrate(new Injector([]), null, null, component, null);
cd = view.changeDetector;
}
function compileWithTemplate(html) {
var template = new Template({
inline: html,
directives: [For]
});
tplResolver.setTemplate(TestComponent, template);
return compiler.compile(TestComponent);
}
var TEMPLATE = '<div><copy-me template="for #item of items">{{item.toString()}};</copy-me></div>';
it('should reflect initial elements', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(TEMPLATE).then((pv) => {
createView(pv);
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('1;2;');
async.done();
});
}));
it('should reflect added elements', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(TEMPLATE).then((pv) => {
createView(pv);
cd.detectChanges();
ListWrapper.push(component.items, 3);
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('1;2;3;');
async.done();
});
}));
it('should reflect removed elements', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(TEMPLATE).then((pv) => {
createView(pv);
cd.detectChanges();
ListWrapper.removeAt(component.items, 1);
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('1;');
async.done();
});
}));
it('should reflect moved elements', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(TEMPLATE).then((pv) => {
createView(pv);
cd.detectChanges();
ListWrapper.removeAt(component.items, 0);
ListWrapper.push(component.items, 1);
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('2;1;');
async.done();
});
}));
it('should reflect a mix of all changes (additions/removals/moves)', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(TEMPLATE).then((pv) => {
createView(pv);
component.items = [0, 1, 2, 3, 4, 5];
cd.detectChanges();
component.items = [6, 2, 7, 0, 4, 8];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('6;2;7;0;4;8;');
async.done();
});
}));
it('should iterate over an array of objects', inject([AsyncTestCompleter], (async) => {
compileWithTemplate('<ul><li template="for #item of items">{{item["name"]}};</li></ul>').then((pv) => {
createView(pv);
// INIT
component.items = [{'name': 'misko'}, {'name':'shyam'}];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('misko;shyam;');
// GROW
ListWrapper.push(component.items, {'name': 'adam'});
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('misko;shyam;adam;');
// SHRINK
ListWrapper.removeAt(component.items, 2);
ListWrapper.removeAt(component.items, 0);
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('shyam;');
async.done();
});
}));
it('should gracefully handle nulls', inject([AsyncTestCompleter], (async) => {
compileWithTemplate('<ul><li template="for #item of null">{{item}};</li></ul>').then((pv) => {
createView(pv);
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('');
async.done();
});
}));
it('should gracefully handle ref changing to null and back', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(TEMPLATE).then((pv) => {
createView(pv);
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('1;2;');
component.items = null;
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('');
component.items = [1, 2, 3];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('1;2;3;');
async.done();
});
}));
it('should throw on ref changing to string', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(TEMPLATE).then((pv) => {
createView(pv);
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('1;2;');
component.items = 'whaaa';
expect(() => cd.detectChanges()).toThrowError();
async.done();
});
}));
it('should works with duplicates', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(TEMPLATE).then((pv) => {
createView(pv);
var a = new Foo();
component.items = [a, a];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('foo;foo;');
async.done();
});
}));
it('should repeat over nested arrays', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(
'<div>'+
'<div template="for #item of items">' +
'<div template="for #subitem of item">' +
'{{subitem}}-{{item.length}};' +
'</div>|'+
'</div>'+
'</div>'
).then((pv) => {
createView(pv);
component.items = [['a', 'b'], ['c']];
cd.detectChanges();
cd.detectChanges();
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('a-2;b-2;|c-1;|');
component.items = [['e'], ['f', 'g']];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('e-1;|f-2;g-2;|');
async.done();
});
}));
it('should repeat over nested arrays with no intermediate element', inject([AsyncTestCompleter], (async) => {
compileWithTemplate(
'<div><template [for] #item [of]="items">' +
'<div template="for #subitem of item">' +
'{{subitem}}-{{item.length}};' +
'</div></template></div>'
).then((pv) => {
createView(pv);
component.items = [['a', 'b'], ['c']];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('a-2;b-2;c-1;');
component.items = [['e'], ['f', 'g']];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('e-1;f-2;g-2;');
async.done();
});
}));
it('should display indices correctly', inject([AsyncTestCompleter], (async) => {
var INDEX_TEMPLATE =
'<div><copy-me template="for: var item of items; var i=index">{{i.toString()}}</copy-me></div>';
compileWithTemplate(INDEX_TEMPLATE).then((pv) => {
createView(pv);
component.items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('0123456789');
component.items = [1, 2, 6, 7, 4, 3, 5, 8, 9, 0];
cd.detectChanges();
expect(DOM.getText(view.nodes[0])).toEqual('0123456789');
async.done();
});
}));
});
}
class Foo {
toString() {
return 'foo';
}
}
@Component({selector: 'test-cmp'})
class TestComponent {
items: any;
constructor() {
this.items = [1, 2];
}
}