如何在AngularJS单元测试中测试超出范围的功能

Adr*_*zio 5 unit-testing controller jasmine angularjs karma-jasmine

我需要将测试应用于特定的控制器.

测试这个控制器是好的:

angular.module('app', []).controller('PasswordController', function PasswordController($scope) {
    $scope.password = '';

    $scope.grade = function () {
        var size = $scope.password.length;
        if (size > 8) {
            $scope.strength = 'strong';
        } else if (size > 3) {
            $scope.strength = 'medium';
        } else {
            $scope.strength = 'weak';
        }
    };
});
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但我想测试一下:

angular.module('app', []).controller('PasswordController', function PasswordController($scope) {


    var vm = this;
    vm.password = '';

    function grade() {
        var size = vm.password.length;
        if (size > 8) {
            vm.strength = 'strong';
        } else if (size > 3) {
            vm.strength = 'medium';
        } else {
            vm.strength = 'weak';
       }
   };
});
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我尝试使用以下代码测试控制器:

describe('Test', function () {

    beforeEach(module('app'));

    var MainCtrl, scope;

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

    it('Should not throw Exception', function () {
        scope.password = 'abc';
        var call = function () {
            MainCtrl.grade();
        }
        expect(call).not.toThrow();
    });
});
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但是我得到了这个错误: 期望函数不抛出,但它抛出TypeError:'undefined'不是一个函数(评估'MainCtrl.grade()').

这个stackOverflow问题帮助我应用测试来在'this'里面运行.但我想测试$ scope和'this'中的函数...

任何想法如何将单元测试应用于此控制器?

Bra*_*oks 2

等级方法未附加到控制器;

vm.grade = grade;
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