如何使用Jasmine测试嵌套的ng-click

// controller.js
angular.module('myApp', [])
  .controller('MyController', function($scope) {
    $scope.value = 0;
    $scope.increment = function() {
      $scope.value++;
    };
  });

<!-- index.html -->
<div ng-app="myApp" ng-controller="MyController">
  <button ng-click="increment()">Increment</button>
  <p>Value: {{value}}</p>
</div>

// test.js
describe('MyController', function() {
  var $scope, controller;

  beforeEach(module('myApp'));

  beforeEach(inject(function($rootScope, $controller) {
    $scope = $rootScope.$new();
    controller = $controller('MyController', { $scope: $scope });
  }));

  it('should increment the value when button is clicked', function() {
    spyOn($scope, 'increment');
    var button = angular.element('<button ng-click="increment()">Increment</button>');
    angular.element(document.body).append(button);
    button.triggerHandler('click');
    expect($scope.increment).toHaveBeenCalled();
    expect($scope.value).toBe(1);
  });
});