Angular 1/Jasmine -测试元素是否存在于ng-if中

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

  beforeEach(function() {
    module('myApp'); // 假设myApp是Angular应用的模块名
    inject(function($rootScope, $compile) {
      var scope = $rootScope.$new();
      scope.showElement = true; // 假设showElement是控制ng-if的表达式
      element = angular.element('<div ng-if="showElement">Hello World!</div>');
      $compile(element)(scope);
      scope.$digest();
    });
  });

  it('should render the element if ng-if is true', function() {
    expect(element.length).toBe(1);
  });

  it('should not render the element if ng-if is false', function() {
    inject(function($rootScope) {
      $rootScope.showElement = false;
      $rootScope.$digest();
      expect(element.length).toBe(0);
    });
  });
});