expect语句适用于$scope，我如何在Karma测试中获得我的init()函数？

describe('MyController', function() {
  // ...
});

beforeEach(function() {
  // 设置测试环境
});

beforeEach(function() {
  module('myApp'); // 假设你的应用名为myApp
  inject(function($controller, $rootScope) {
    $scope = $rootScope.$new();
    $controller('MyController', { $scope: $scope });
    $scope.init = jasmine.createSpy('init');
  });
});

beforeEach(function() {
  // ...
  $scope.init = jasmine.createSpy('init');
});

describe('MyController', function() {
  // ...
  it('should call init() function', function() {
    expect($scope.init).toHaveBeenCalled();
  });
});