我有以下 Controller (请注意，在实例化时我显式调用了 $scope.getNotifications()):

bla.controller("myctrl", [
    "$scope", "$http", "configs", function ($scope, $http, configs) {

        $scope.getNotifications = function () {
            $http.get("bla/blabla").success(function (data) {

            });
        };

        $scope.removeNotification = function (notification) {
            var index = $scope.allNotifications.indexOf(notification);
            $scope.allNotifications.splice(index, 1);
        };

        $scope.getNotifications();
    }
]);

然后我进行一些单元测试(注意 Controller 在每个之前实例化):

describe("blaController", function () {

    var scope, $httpBackend;

    beforeEach(module('bla'));

    beforeEach(inject(function ($controller, $rootScope, _$httpBackend_) {
        scope = $rootScope.$new();
        $httpBackend = _$httpBackend_;
        $controller('blaCtrl', { $scope: scope });
    }));

 afterEach(function(){
    //assert
    $httpBackend.verifyNoOutstandingExpectation();
    $httpBackend.verifyNoOutstandingRequest();
 });

 it("should get all notifications from server when instantiated", function () {
    //arrange
    $httpBackend.expectGET("api/v1/notifications").respond(200, {});
    $httpBackend.flush();

    //act - done implicitly when controller is instantiated  
});

it("should store all notifications from server on the client when success call to server", function () {
    //arrange
    $httpBackend.whenGET("api/v1/notifications").respond(200, [{ a: 1, b: 2 }, { c: 3, d: 4 }]);
    $httpBackend.flush();

    //act - done implicitly when controller is instantiated

    //assert
    expect(scope.allNotifications).toEqual([{ a: 1, b: 2 }, { c: 3, d: 4 }]);
});

到目前为止一切都很好。所有测试都通过。但是，当我添加一个不需要任何 HTTP 调用的新测试(见下文)时，它会失败，因为在 afterEach() 中它会验证预期，但在 removeNotification( )。 这是来自业力的错误信息: PhantomJS 1.9.7 (Windows 8) notificationCenterController removeNotification 应该从 th 中删除给定的通知 e 列表失败 错误:意外请求:GET api/v1/notifications 预计不会有更多请求

it("should remove the given notification from the list", function () {
            //arrange
            var targetObj = { a: 2 };
            scope.allNotifications = [{ a: 1 }, targetObj, { a: 3 }];

            //act
            scope.removeNotification(targetObj);

            //assert
            expect(scope.allNotifications).toEqual([{ a: 1 }, { a: 3 }]);
        });

我的大部分测试都有 http 调用，因此将验证放在 afterEach 中是有意义的。我想知道还有什么其他选择可以避免在 N-1 测试中复制粘贴 afterEach 主体。 有没有办法告诉 $httpBackend 忽略任何调用？

最佳答案

您可以像下面这样将测试包装在 describe block 中。

describe("blaController", function () {

    var scope, $httpBackend;

    beforeEach(module('bla'));

    beforeEach(inject(function ($controller, $rootScope, _$httpBackend_) {
        scope = $rootScope.$new();
        $httpBackend = _$httpBackend_;
        $controller('blaCtrl', { $scope: scope });
    }));

    describe('test http calls', function() {

        afterEach(function(){
            //assert
            $httpBackend.verifyNoOutstandingExpectation();
            $httpBackend.verifyNoOutstandingRequest();
        });

        it("should get all notifications from server when instantiated", function () {
            //arrange
            $httpBackend.expectGET("api/v1/notifications").respond(200, {});
            $httpBackend.flush();

            //act - done implicitly when controller is instantiated  
        });

        it("should store all notifications from server on the client when success call to server", function () {
        //arrange
            $httpBackend.whenGET("api/v1/notifications").respond(200, [{ a: 1, b: 2 }, { c: 3, d: 4 }]);
            $httpBackend.flush();

            //act - done implicitly when controller is instantiated

            //assert
            expect(scope.allNotifications).toEqual([{ a: 1, b: 2 }, { c: 3, d: 4 }]);
        });

    }); 

    describe('other tests', function(){
        it("should remove the given notification from the list", function () {
            //arrange
            var targetObj = { a: 2 };
            scope.allNotifications = [{ a: 1 }, targetObj, { a: 3 }];

            //act
            scope.removeNotification(targetObj);

            //assert
            expect(scope.allNotifications).toEqual([{ a: 1 }, { a: 3 }]);
        });
    });
});

关于javascript - 使 $httpBackend 忽略对服务器发出的任何请求，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25525980/