412 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			412 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import {
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  AsyncTestCompleter,
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  TestComponentBuilder,
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  beforeEach,
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  beforeEachBindings,
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  ddescribe,
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  xdescribe,
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  describe,
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  el,
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  expect,
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  iit,
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  inject,
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  it,
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  xit,
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} from 'angular2/test_lib';
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import {List, ListWrapper, StringMapWrapper} from 'angular2/src/facade/collection';
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import {Component, View, NgFor, bind} from 'angular2/angular2';
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import {NgClass} from 'angular2/src/directives/ng_class';
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import {APP_VIEW_POOL_CAPACITY} from 'angular2/src/core/compiler/view_pool';
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function detectChangesAndCheck(rootTC, classes: string, elIndex: number = 0) {
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  rootTC.detectChanges();
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  expect(rootTC.componentViewChildren[elIndex].nativeElement.className).toEqual(classes);
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}
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export function main() {
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  describe('binding to CSS class list', () => {
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    describe('viewpool support', () => {
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      beforeEachBindings(() => { return [bind(APP_VIEW_POOL_CAPACITY).toValue(100)]; });
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      it('should clean up when the directive is destroyed',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div *ng-for="var item of items" [ng-class]="item"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 rootTC.componentInstance.items = [['0']];
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                 rootTC.detectChanges();
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                 rootTC.componentInstance.items = [['1']];
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                 detectChangesAndCheck(rootTC, 'ng-binding 1', 1);
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                 async.done();
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               });
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         }));
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    });
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    describe('expressions evaluating to objects', () => {
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      it('should add classes specified in an object literal',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="{foo: true, bar: false}"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 async.done();
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               });
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         }));
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      it('should add classes specified in an object literal without change in class names',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = `<div [ng-class]="{'foo-bar': true, 'fooBar': true}"></div>`;
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo-bar fooBar');
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                 async.done();
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               });
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         }));
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      it('should add and remove classes based on changes in object literal values',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="{foo: condition, bar: !condition}"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 rootTC.componentInstance.condition = false;
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                 detectChangesAndCheck(rootTC, 'ng-binding bar');
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                 async.done();
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               });
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         }));
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      it('should add and remove classes based on changes to the expression object',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="objExpr"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'bar', true);
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                 detectChangesAndCheck(rootTC, 'ng-binding foo bar');
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'baz', true);
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                 detectChangesAndCheck(rootTC, 'ng-binding foo bar baz');
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                 StringMapWrapper.delete(rootTC.componentInstance.objExpr, 'bar');
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                 detectChangesAndCheck(rootTC, 'ng-binding foo baz');
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                 async.done();
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               });
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         }));
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      it('should add and remove classes based on reference changes to the expression object',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="objExpr"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 rootTC.componentInstance.objExpr = {foo: true, bar: true};
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                 detectChangesAndCheck(rootTC, 'ng-binding foo bar');
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                 rootTC.componentInstance.objExpr = {baz: true};
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                 detectChangesAndCheck(rootTC, 'ng-binding baz');
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                 async.done();
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               });
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         }));
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      it('should remove active classes when expression evaluates to null',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="objExpr"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 rootTC.componentInstance.objExpr = null;
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                 detectChangesAndCheck(rootTC, 'ng-binding');
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                 rootTC.componentInstance.objExpr = {'foo': false, 'bar': true};
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                 detectChangesAndCheck(rootTC, 'ng-binding bar');
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                 async.done();
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               });
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         }));
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    });
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    describe('expressions evaluating to lists', () => {
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      it('should add classes specified in a list literal',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = `<div [ng-class]="['foo', 'bar', 'foo-bar', 'fooBar']"></div>`;
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo bar foo-bar fooBar');
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                 async.done();
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               });
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         }));
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      it('should add and remove classes based on changes to the expression',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="arrExpr"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 var arrExpr: List<string> = rootTC.componentInstance.arrExpr;
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 arrExpr.push('bar');
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                 detectChangesAndCheck(rootTC, 'ng-binding foo bar');
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                 arrExpr[1] = 'baz';
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                 detectChangesAndCheck(rootTC, 'ng-binding foo baz');
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                 ListWrapper.remove(rootTC.componentInstance.arrExpr, 'baz');
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 async.done();
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               });
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         }));
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      it('should add and remove classes when a reference changes',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="arrExpr"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 rootTC.componentInstance.arrExpr = ['bar'];
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                 detectChangesAndCheck(rootTC, 'ng-binding bar');
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                 async.done();
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               });
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         }));
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      it('should take initial classes into account when a reference changes',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div class="foo" [ng-class]="arrExpr"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'foo ng-binding');
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                 rootTC.componentInstance.arrExpr = ['bar'];
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                 detectChangesAndCheck(rootTC, 'ng-binding foo bar');
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                 async.done();
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               });
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         }));
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    });
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    describe('expressions evaluating to string', () => {
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      it('should add classes specified in a string literal',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = `<div [ng-class]="'foo bar foo-bar fooBar'"></div>`;
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo bar foo-bar fooBar');
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                 async.done();
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               });
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         }));
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      it('should add and remove classes based on changes to the expression',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="strExpr"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 rootTC.componentInstance.strExpr = 'foo bar';
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                 detectChangesAndCheck(rootTC, 'ng-binding foo bar');
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                 rootTC.componentInstance.strExpr = 'baz';
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                 detectChangesAndCheck(rootTC, 'ng-binding baz');
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                 async.done();
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               });
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         }));
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      it('should remove active classes when switching from string to null',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = `<div [ng-class]="strExpr"></div>`;
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 rootTC.componentInstance.strExpr = null;
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                 detectChangesAndCheck(rootTC, 'ng-binding');
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                 async.done();
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               });
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         }));
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      it('should take initial classes into account when switching from string to null',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = `<div class="foo" [ng-class]="strExpr"></div>`;
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'foo ng-binding');
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                 rootTC.componentInstance.strExpr = null;
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                 detectChangesAndCheck(rootTC, 'ng-binding foo');
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                 async.done();
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               });
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         }));
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    });
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    describe('cooperation with other class-changing constructs', () => {
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      it('should co-operate with the class attribute',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div [ng-class]="objExpr" class="init foo"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'bar', true);
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                 detectChangesAndCheck(rootTC, 'init foo ng-binding bar');
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'foo', false);
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                 detectChangesAndCheck(rootTC, 'init ng-binding bar');
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                 rootTC.componentInstance.objExpr = null;
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                 detectChangesAndCheck(rootTC, 'init ng-binding foo');
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                 async.done();
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               });
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         }));
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      it('should co-operate with the interpolated class attribute',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = `<div [ng-class]="objExpr" class="{{'init foo'}}"></div>`;
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'bar', true);
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                 detectChangesAndCheck(rootTC, `{{'init foo'}} ng-binding init foo bar`);
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'foo', false);
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                 detectChangesAndCheck(rootTC, `{{'init foo'}} ng-binding init bar`);
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                 rootTC.componentInstance.objExpr = null;
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                 detectChangesAndCheck(rootTC, `{{'init foo'}} ng-binding init foo`);
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                 async.done();
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               });
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         }));
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      it('should co-operate with the class attribute and binding to it',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = `<div [ng-class]="objExpr" class="init" [class]="'foo'"></div>`;
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'bar', true);
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                 detectChangesAndCheck(rootTC, `init ng-binding foo bar`);
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'foo', false);
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                 detectChangesAndCheck(rootTC, `init ng-binding bar`);
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                 rootTC.componentInstance.objExpr = null;
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                 detectChangesAndCheck(rootTC, `init ng-binding foo`);
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                 async.done();
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               });
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         }));
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      it('should co-operate with the class attribute and class.name binding',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template =
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               '<div class="init foo" [ng-class]="objExpr" [class.baz]="condition"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'init foo ng-binding baz');
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'bar', true);
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                 detectChangesAndCheck(rootTC, 'init foo ng-binding baz bar');
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'foo', false);
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                 detectChangesAndCheck(rootTC, 'init ng-binding baz bar');
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                 rootTC.componentInstance.condition = false;
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                 detectChangesAndCheck(rootTC, 'init ng-binding bar');
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                 async.done();
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               });
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         }));
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      it('should co-operate with initial class and class attribute binding when binding changes',
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         inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
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           var template = '<div class="init" [ng-class]="objExpr" [class]="strExpr"></div>';
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           tcb.overrideTemplate(TestComponent, template)
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               .createAsync(TestComponent)
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               .then((rootTC) => {
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                 detectChangesAndCheck(rootTC, 'init ng-binding foo');
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                 StringMapWrapper.set(rootTC.componentInstance.objExpr, 'bar', true);
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                 detectChangesAndCheck(rootTC, 'init ng-binding foo bar');
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                 rootTC.componentInstance.strExpr = 'baz';
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                 detectChangesAndCheck(rootTC, 'init ng-binding bar baz foo');
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                 rootTC.componentInstance.objExpr = null;
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                 detectChangesAndCheck(rootTC, 'init ng-binding baz');
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                 async.done();
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               });
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         }));
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    });
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  })
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}
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@Component({selector: 'test-cmp'})
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@View({directives: [NgClass, NgFor]})
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class TestComponent {
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  condition: boolean = true;
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  items: any[];
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  arrExpr: List<string> = ['foo'];
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  objExpr = {'foo': true, 'bar': false};
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  strExpr = 'foo';
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}
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