Angularjs Karma测试在服务上抛出“未找到提供程序”错误

我试图创建一个简单的服务，并在jasmine karma环境中测试它

我使用了Angular 1.5.5

由于某种原因，我总是出错

Chrome 46.0.2490 (Windows 7 0.0.0) reddit api service should do something FAILED
    Error: [$injector:unpr] Unknown provider: redditServiceProvider <- redditService
    http://errors.angularjs.org/1.5.7/$injector/unpr?p0=redditServiceProvider%20%3C-%20redditService
        at c:/client/www/vendor/angular/angular.js:68:12
        at c:/client/www/vendor/angular/angular.js:4502:19
        at Object.getService [as get] (c:/client/www/vendor/angular/angular.js:4655:39)
        at c:/client/www/vendor/angular/angular.js:4507:45
        at getService (c:/client/www/vendor/angular/angular.js:4655:39)
        at injectionArgs (c:/client/www/vendor/angular/angular.js:4679:58)
        at Object.invoke (c:/client/www/vendor/angular/angular.js:4701:18)
        at Object.workFn (c:/client/node_modules/angular-mocks/angular-mocks.js:3078:20)
    Error: Declaration Location
        at window.inject.angular.mock.inject (c:/client/node_modules/angular-mocks/angular-mocks.js:3040:25)
        at Suite.<anonymous> (c:/client/www/app/mine/myspec.spec.js:12:16)
        at c:/client/www/app/mine/myspec.spec.js:7:3
        at c:/client/www/app/mine/myspec.spec.js:52:3
    TypeError: Cannot read property 'whenGET' of undefined
        at Object.<anonymous> (c:/client/www/app/mine/myspec.spec.js:18:18)
Chrome 46.0.2490 (Windows 7 0.0.0): Executed 1 of 1 (1 FAILED) (0 secs / 0.049 secs)
Chrome 46.0.2490 (Windows 7 0.0.0): Executed 1 of 1 (1 FAILED) ERROR (0.048 secs / 0.049 secs)
29 06 2016 13:03:43.349:DEBUG [karma]: Run complete, exiting.
29 06 2016 13:03:43.349:DEBUG [launcher]: Disconnecting all browsers
29 06 2016 13:03:43.650:DEBUG [launcher]: Process Chrome exited with code 0
29 06 2016 13:03:43.652:DEBUG [temp-dir]: Cleaning temp dir C:\Users\mine\AppData\Local\Temp\karma-78283773
29 06 2016 13:03:44.892:DEBUG [launcher]: Finished all browsers
[13:03:44] 'karma' errored after 15 s
[13:03:44] Error: 1

我的测试如下所示：

(function(){
  "use strict";

  describe("reddit api service", function () {
    var redditService, httpBackend;

    beforeEach(module("reddit"));

    beforeEach(inject(function (_redditService_, $httpBackend) {
      redditService = _redditService_;
      httpBackend = $httpBackend;
    }));

    it("should do something", function () {
      httpBackend.whenGET("http://api.reddit.com/user/yoitsnate/submitted.json").respond({
        data: {
          children: [
            {
              data: {
                subreddit: "golang"
              }
            },
            {
              data: {
                subreddit: "javascript"
              }
            },
            {
              data: {
                subreddit: "golang"
              }
            },
            {
              data: {
                subreddit: "javascript"
              }
            }
          ]
        }
      });
      redditService.getSubredditsSubmittedToBy("yoitsnate").then(function(subreddits) {
        expect(subreddits).toEqual(["golang", "javascript"]);
      });
      httpBackend.flush();
    });

  });

})();

我按照本教程（）创建了此服务（而是复制了它） 我假设它确实起作用了，还有其他一些问题。我有其他人的工作代码，任何经过测试的服务都可以正常工作。 请让我知道我错在哪里。

---

谢谢

问题似乎在于如何命名/注入Reddit服务。在服务文件中，您创建了一个名为

userService

的模块，但在测试中，您正在注入并使用一个名为

redditService

的模块，据我所知，该模块并不存在。如果你这样做，我认为它会起作用：

beforeEach(inject(function (_userService_, $httpBackend) {
  redditService = _userService_;
  httpBackend = $httpBackend;
}));

---

我不知怎么错过了。我想我也有一些包装问题。我将把它作为另一个问题发布。谢谢你，乔恩

beforeEach(inject(function (_userService_, $httpBackend) {
  redditService = _userService_;
  httpBackend = $httpBackend;
}));