Angular 单元测试未知提供者:$scopeProvider [英] Angular Unit Test Unknown provider: $scopeProvider

问题描述

你好，我正在用 Jasmine 编写我的第一个角度测试，但我不断收到错误

Hello I am writing my first angular test with Jasmine but I keep getting the error

------ 测试开始:文件:C:\Users\Regan\Documents\Visual Studio 2013\WebSites\Regan\testApp\TestProject\ng-tests\MainCtrlSpec.js ------使用内联模拟测试MainCtrl:应该有​​标签"失败错误:[$injector:unpr] 未知提供者:$scopeProvider <- $scope <- MainCtrl

------ Test started: File: C:\Users\Regan\Documents\Visual Studio 2013\WebSites\Regan\testApp\TestProject\ng-tests\MainCtrlSpec.js ------ Test 'MainCtrl with inline mock:should have lables' failed Error: [$injector:unpr] Unknown provider: $scopeProvider <- $scope <- MainCtrl

我试过玩弄它，但被卡住了.如果您看到问题，请告诉我.如果您还需要更多代码，请告诉我，但我认为问题出在这两个文件中.

I have tried playing around with it but am stuck. If you see the problem please let me know. If you need more code as well please let me know but I think the problem is in these two files.

MainCtrlSvc.js

MainCtrlSvc.js

/// <reference path="../../Scripts/angular/angular.js" />
/// <reference path="../../Scripts/angular/angular-mocks.js" />
/// <reference path="../../Scripts/chartjs/Chart.js" />
/// <reference path="../../Scripts/angular-chart.js-master/dist/angular-chart.js" />
/// <reference path="../../Scripts/controller/main-controller.js" />
/// <reference path="../../Scripts/service/data-service.js" />
/// <reference path="../../libs/jasmine/jasmine.js" />

describe("MainCtrl with inline mock", function () {
    beforeEach(module("ChartApp"));

    var ctrl, mockDataSrv;

    beforeEach(module(function($provide) {
        mockDataSrv = {
            labels: ["Reading", "Coding", "Thinking About Coding", "Reddit", "StackOverflow"],
            data: [500, 300, 300, 40, 220],
            type: "PolarArea",
            title: "Angular Chart Expriment"
        };
        $provide.value("DataSrv", mockDataSrv);
    }));

    beforeEach(inject(function ($controller) {
        ctrl = $controller("MainCtrl");
    }));

    it("should have lables", function () {
        expect(scope.labels).toBeDefined();
    });
});

MainCtrl.js

MainCtrl.js

var app = angular.module("ChartApp", ["chart.js"]);

    app.controller("MainCtrl", ["$scope",
      function ($scope, DataSrv) {
          $scope.labels = DataSrv.labels;
          $scope.data = DataSrv.data;
          $scope.type = DataSrv.type;
          $scope.title = DataSrv.title;
      }
    ]);

推荐答案

由于没有 $scope 服务，$controller provider 无法实例化注入的 $范围 参数.

Since there is no $scope service, $controller provider cannot instantiate the injected $scope argument.

您需要在使用 $controller 提供程序实例化控制器时提供范围.你可以在你的 setUp 中注入 $rootScope 并且你可以通过执行 $rootScope.$new() 来获得一个子作用域.将其作为参数注入 $controller 构造函数.即 $controller("MainCtrl", {$scope:scope }) 其中 scope 是新的子作用域，即使您可以传入 $rootScope.

You need to provide the scope while instantiating a controller using the $controller provider. You can inject $rootScope in your setUp and you can get a child scope by doing $rootScope.$new(). Inject it as an argument to the $controller contstructor. i.e $controller("MainCtrl", {$scope:scope }) where scope is the new child scope of even you can pass in the $rootScope.

即

   var ctrl, mockDataSrv, scope;
    //... Your code
    //...
    beforeEach(inject(function ($controller, $rootScope) {
        scope = $rootScope.$new(); //get a childscope
        ctrl = $controller("MainCtrl", {$scope:scope }); //Pass it as argument as $scope's value
    }));

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