测试自定义验证angularjs指令

另一个答案的测试应写为：

describe('directives', function() {  var $scope, form;  beforeEach(module('exampleDirective'));  beforeEach(inject(function($compile, $rootScope) {    $scope = $rootScope;    var element = angular.element(      '<form name="form">' +      '<input ng-model="model.somenum" name="somenum" integer />' +      '</form>'    );    $scope.model = { somenum: null }    $compile(element)($scope);    form = $scope.form;  }));  describe('integer', function() {    it('should pass with integer', function() {      form.somenum.$setViewValue('3');      $scope.$digest();      expect($scope.model.somenum).toEqual('3');      expect(form.somenum.$valid).toBe(true);    });    it('should not pass with string', function() {      form.somenum.$setViewValue('a');      $scope.$digest();      expect($scope.model.somenum).toBeUndefined();      expect(form.somenum.$valid).toBe(false);    });  });});

请注意，

$scope.$digest()

$setViewValue