angular.js/test/directive/ngSwitchSpec.js

'use strict';

describe('ng-switch', function() {
  var element;


  afterEach(function(){
    dealoc(element);
  });


  it('should switch on value change', inject(function($rootScope, $compile) {
    element = $compile(
      '<div ng-switch="select">' +
        '<div ng-switch-when="1">first:{{name}}</div>' +
        '<div ng-switch-when="2">second:{{name}}</div>' +
        '<div ng-switch-when="true">true:{{name}}</div>' +
      '</div>')($rootScope);
    expect(element.html()).toEqual(
        '<!-- ngSwitchWhen: 1 --><!-- ngSwitchWhen: 2 --><!-- ngSwitchWhen: true -->');
    $rootScope.select = 1;
    $rootScope.$apply();
    expect(element.text()).toEqual('first:');
    $rootScope.name="shyam";
    $rootScope.$apply();
    expect(element.text()).toEqual('first:shyam');
    $rootScope.select = 2;
    $rootScope.$apply();
    expect(element.text()).toEqual('second:shyam');
    $rootScope.name = 'misko';
    $rootScope.$apply();
    expect(element.text()).toEqual('second:misko');
    $rootScope.select = true;
    $rootScope.$apply();
    expect(element.text()).toEqual('true:misko');
  }));


  it('should switch on switch-when-default', inject(function($rootScope, $compile) {
    element = $compile(
      '<ng:switch on="select">' +
        '<div ng:switch-when="1">one</div>' +
        '<div ng:switch-default>other</div>' +
      '</ng:switch>')($rootScope);
    $rootScope.$apply();
    expect(element.text()).toEqual('other');
    $rootScope.select = 1;
    $rootScope.$apply();
    expect(element.text()).toEqual('one');
  }));


  it('should call change on switch', inject(function($rootScope, $compile) {
    element = $compile(
      '<ng:switch on="url" change="name=\'works\'">' +
        '<div ng-switch-when="a">{{name}}</div>' +
      '</ng:switch>')($rootScope);
    $rootScope.url = 'a';
    $rootScope.$apply();
    expect($rootScope.name).toEqual('works');
    expect(element.text()).toEqual('works');
  }));
});