如何使用Jasmine测试具有依赖注入的Angular控制器？

时间：2016-06-20 12:51:43

标签： javascript angularjs jasmine chutzpah

我正在尝试测试我的一个Angular控制器。首先，我想看看，我可以在控制器中调用一个简单的函数，它返回两个数字的总和。

这是控制器的相关部分，具有简单的求和功能（为了简单起见，我已将所有其他功能保留下来）：

detailModule.controller('detailController',
    function detailController($rootScope, $scope, detailService, sharedPropertiesService, facebookService, helperService, uiStateService) {

    $scope.sum = function (first, second) {
        return first + second;
    }
});

除了$ rootscope和$ scope之外，控制器还需要几项服务。

现在我想从Jasmine调用这个sum函数，并为此目的制作了这个js。

/// <reference path="D:\Users\bbrinch\Documents\Visual Studio 2015\Projects\Homework\Homework\Scripts/jasmine/jasmine.js" />
/// <reference path="D:\Users\bbrinch\Documents\Visual Studio 2015\Projects\Homework\Homework\Scripts/angular.min.js" />
/// <reference path="D:\Users\bbrinch\Documents\Visual Studio 2015\Projects\Homework\Homework\Scripts/angular-mocks.js" />
/// <reference path="app.js" />
/// <reference path="detailController.js" />

'use strict';

describe('detailModule', function () {
    beforeEach(module('detailModule'));

    describe('detailController', function () {
        var scope, controller, rootScope;
        var detailService, sharedPropertiesService, facebookService, helperService, uiStateService;

        beforeEach(inject(function (_$rootScope, _$scope, _detailService, _sharedPropertiesService, _facebookService, _helperService, _uiStateService, $controller) {
            rootScope = _$rootScope;
            scope = $rootScope.$new();
            detailService = _detailService;
            sharedPropertiesService = _sharedPropertiesService;
            facebookService = _facebookService;
            helperService = _helperService;
            uiStateService = _uiStateService;

            controller = $controller('detailController', {
                $rootScope : rootScope,
                $scope: scope,
                detailService: detailService,
                sharedPropertiesService: sharedPropertiesService,
                facebookService: facebookService,
                helperService: helperService,
                uiStateService: uiStateService
            });
        }));

        it('should return 10', function () {
            var result = scope.sum(3, 7);
            expect(result).toEqual(10);
        });
    })
})

包含的app.js包含detailModule。

我已经安装了chutzpah来运行我的测试。这就是说：

------ Test started: File: D:\Users\bbrinch\Documents\Visual Studio 2015\Projects\Homework\Homework\App\Detail\detailTest.js ------
Test 'detailModule detailController:should return 10' failed
    Error: [$injector:modulerr] http://errors.angularjs.org/1.5.7/$injector/modulerr?p0=detailModule&p1=%5B%24injector%3Amodulerr%5D%20http%3A%2F%2Ferrors.angularjs.org%2F1.5.7%2F%24injector%2Fmodulerr%3Fp0%3DhomeworkModule%26p1%3D%255B%2524injector%253Anomod%255D%2520http%253A%252F%252Ferrors.angularjs.org%252F1.5.7%252F%2524injector%252Fnomod%253Fp0%253DhomeworkModule%250Afile%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A25%253A84%250Ab%2540file%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A24%253A116%250Afile%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A24%253A435%250Afile%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A39%253A376%250Ar%2540file%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A7%253A359%250Ag%2540file%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A39%253A223%250Afile%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A39%253A392%250Ar%2540file%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A7%253A359%250Ag%2540file%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A39%253A223%250Adb%2540file%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular.min.js%253A43%253A247%250AworkFn%2540file%253A%252F%252F%252FD%253A%252FUsers%252Fbbrinch%252FDocuments%252FVisual%252520Studio%2525202015%252FProjects%252FHomework%252FHomework%252FScripts%252Fangular-mocks.js%253A3067%253A60%250AattemptSync%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A1886%253A28%250Arun%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A1874%253A20%250Aexecute%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A1859%253A13%250AqueueRunnerFactory%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A697%253A42%250Aexecute%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A359%253A28%250Afn%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A2479%253A44%250AattemptAsync%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A1916%253A28%250Arun%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A1871%253A21%250Aexecute%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A1859%253A13%250AqueueRunnerFactory%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A697%253A42%250Afn%2540file%253A%252F%252F%252FC%253A%252FUsers%252Fbbrinch%252FAppData%252FLocal%252FMicrosoft%252FVisualStudio%252F14.0%252FExtensions%252F5t5s0xe3.mo1%252FTestFiles%252Fjasmine%252Fv2%252Fjasmine.js%253A2464%253A31%250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in file:///D:/Users/bbrinch/Documents/Visual%20Studio%202015/Projects/Homework/Homework/Scripts/angular.min.js (line 40)
    r@file:///D:/Users/bbrinch/Documents/Visual%20Studio%202015/Projects/Homework/Homework/Scripts/angular.min.js:7:359
    g@file:///D:/Users/bbrinch/Documents/Visual%20Studio%202015/Projects/Homework/Homework/Scripts/angular.min.js:39:223
    db@file:///D:/Users/bbrinch/Documents/Visual%20Studio%202015/Projects/Homework/Homework/Scripts/angular.min.js:43:247
    workFn@file:///D:/Users/bbrinch/Documents/Visual%20Studio%202015/Projects/Homework/Homework/Scripts/angular-mocks.js:3067:60
    attemptSync@file:///C:/Users/bbrinch/AppData/Local/Microsoft/VisualStudio/14.0/Extensions/5t5s0xe3.mo1/TestFiles/jasmine/v2/jasmine.js:1886:28
    TypeError: undefined is not an object (evaluating 'scope.sum') in file:///D:/Users/bbrinch/Documents/Visual%20Studio%202015/Projects/Homework/Homework/App/Detail/detailTest.js (line 37)
    attemptSync@file:///C:/Users/bbrinch/AppData/Local/Microsoft/VisualStudio/14.0/Extensions/5t5s0xe3.mo1/TestFiles/jasmine/v2/jasmine.js:1886:28
    run@file:///C:/Users/bbrinch/AppData/Local/Microsoft/VisualStudio/14.0/Extensions/5t5s0xe3.mo1/TestFiles/jasmine/v2/jasmine.js:1874:20
    execute@file:///C:/Users/bbrinch/AppData/Local/Microsoft/VisualStudio/14.0/Extensions/5t5s0xe3.mo1/TestFiles/jasmine/v2/jasmine.js:1859:13
    queueRunnerFactory@file:///C:/Users/bbrinch/AppData/Local/Microsoft/VisualStudio/14.0/Extensions/5t5s0xe3.mo1/TestFiles/jasmine/v2/jasmine.js:697:42
    execute@file:///C:/Users/bbrinch/AppData/Local/Microsoft/VisualStudio/14.0/Extensions/5t5s0xe3.mo1/TestFiles/jasmine/v2/jasmine.js:359:28
in D:\Users\bbrinch\Documents\Visual Studio 2015\Projects\Homework\Homework\App\Detail\detailTest.js (line 36)

0 passed, 1 failed, 1 total (chutzpah).

========== Total Tests: 0 passed, 1 failed, 1 total ==========

我不知道我在这里缺少什么。

更新

我试图按照estus的建议简化控制器：

现在看起来像这样：

/// <reference path="D:\Users\bbrinch\Documents\Visual Studio 2015\Projects\Homework\Homework\Scripts/jasmine/jasmine.js" />
/// <reference path="D:\Users\bbrinch\Documents\Visual Studio 2015\Projects\Homework\Homework\Scripts/angular.min.js" />
/// <reference path="D:\Users\bbrinch\Documents\Visual Studio 2015\Projects\Homework\Homework\Scripts/angular-mocks.js" />
/// <reference path="app.js" />
/// <reference path="detailController.js" />

'use strict';

describe('detailModule', function () {
    beforeEach(module('detailModule'));

    describe('detailController', function () {
        var scope, controller;

        beforeEach(inject(function (_$rootScope) {
            scope = _$rootScope.$new();

            controller = $controller('detailController', {
                $scope: scope,
            });
        }));

        it('should return 10', function () {
            var result = scope.sum(3, 7);
            expect(result).toEqual(10);
        });
    })
})

但是我仍然会收到此错误：

由于以下原因导致无法实例化模块detailModule： [$ injector：modulerr] http://errors.angularjs.org/1.5.7/ $ injector / modulerr？p0 = h ...

更新2

我解决了。问题是我缺少参考文献。基本上所有模块，服务，控制器等都必须以一种方式引用。

如果它可以自动遍历并解析所有需要的引用，那将会很好。

2 个答案:

答案 0 :(得分：2)

可以跟踪

Error stack，并发送消息says the initial reason：

  

模块＆＃39; homeworkModule＆＃39;不可用！您要么错误拼写了模块名称，要么忘记加载它。如果注册模块，请确保将依赖项指定为第二个参数。

$controller与当前规范共享注入器，没有理由为$controller指定依赖项，除非它们是本地的或模拟的。它应该是：

        controller = $controller('detailController', {
            $scope: scope
        });

答案 1 :(得分：0)

  

TypeError：undefined不是对象（评估'scope.sum'）

这意味着范围未定义。

这很可能是因为这段代码，

rootScope = _$rootScope;
scope = $rootScope.$new(); // it should be either _$rootScope.new() or rootScope.new()

只需更改此内容即可查看。

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