angular-docs-cn/modules/angular2/test/directives/switch_spec.js

154 lines
5.1 KiB
JavaScript

import {
AsyncTestCompleter,
beforeEach,
ddescribe,
describe,
el,
expect,
iit,
inject,
it,
xit,
} from 'angular2/test_lib';
import {DOM} from 'angular2/src/dom/dom_adapter';
import {Component} from 'angular2/src/core/annotations_impl/annotations';
import {View} from 'angular2/src/core/annotations_impl/view';
import {Switch, SwitchWhen, SwitchDefault} from 'angular2/src/directives/switch';
import {TestBed} from 'angular2/src/test_lib/test_bed';
export function main() {
describe('switch', () => {
describe('switch value changes', () => {
it('should switch amongst when values', inject([TestBed, AsyncTestCompleter], (tb, async) => {
var template = '<div>' +
'<ul [switch]="switchValue">' +
'<template [switch-when]="\'a\'"><li>when a</li></template>' +
'<template [switch-when]="\'b\'"><li>when b</li></template>' +
'</ul></div>';
tb.createView(TestComponent, {html: template}).then((view) => {
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('');
view.context.switchValue = 'a';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when a');
view.context.switchValue = 'b';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when b');
async.done();
});
}));
it('should switch amongst when values with fallback to default',
inject([TestBed, AsyncTestCompleter], (tb, async) => {
var template = '<div>' +
'<ul [switch]="switchValue">' +
'<li template="switch-when \'a\'">when a</li>' +
'<li template="switch-default">when default</li>' +
'</ul></div>';
tb.createView(TestComponent, {html: template}).then((view) => {
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when default');
view.context.switchValue = 'a';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when a');
view.context.switchValue = 'b';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when default');
async.done();
});
}));
it('should support multiple whens with the same value',
inject([TestBed, AsyncTestCompleter], (tb, async) => {
var template = '<div>' +
'<ul [switch]="switchValue">' +
'<template [switch-when]="\'a\'"><li>when a1;</li></template>' +
'<template [switch-when]="\'b\'"><li>when b1;</li></template>' +
'<template [switch-when]="\'a\'"><li>when a2;</li></template>' +
'<template [switch-when]="\'b\'"><li>when b2;</li></template>' +
'<template [switch-default]><li>when default1;</li></template>' +
'<template [switch-default]><li>when default2;</li></template>' +
'</ul></div>';
tb.createView(TestComponent, {html: template}).then((view) => {
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when default1;when default2;');
view.context.switchValue = 'a';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when a1;when a2;');
view.context.switchValue = 'b';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when b1;when b2;');
async.done();
});
}));
});
describe('when values changes', () => {
it('should switch amongst when values',
inject([TestBed, AsyncTestCompleter], (tb, async) => {
var template = '<div>' +
'<ul [switch]="switchValue">' +
'<template [switch-when]="when1"><li>when 1;</li></template>' +
'<template [switch-when]="when2"><li>when 2;</li></template>' +
'<template [switch-default]><li>when default;</li></template>' +
'</ul></div>';
tb.createView(TestComponent, {html: template}).then((view) => {
view.context.when1 = 'a';
view.context.when2 = 'b';
view.context.switchValue = 'a';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when 1;');
view.context.switchValue = 'b';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when 2;');
view.context.switchValue = 'c';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when default;');
view.context.when1 = 'c';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when 1;');
view.context.when1 = 'd';
view.detectChanges();
expect(DOM.getText(view.rootNodes[0])).toEqual('when default;');
async.done();
});
}));
});
});
}
@Component({selector: 'test-cmp'})
@View({directives: [Switch, SwitchWhen, SwitchDefault]})
class TestComponent {
switchValue: any;
when1: any;
when2: any;
constructor() {
this.switchValue = null;
this.when1 = null;
this.when2 = null;
}
}