AngularJS 数据库服务的单元测试

Question

我想为我的 angularjs 应用程序添加一些专门针对数据库服务的测试用例。

好吧，问题是我无法在单元测试中真正打开数据库。

我的测试用例如下所示：

describe("DatabaseCreateService‚", function () {
  var DatabaseCreateService,cordovaSQLite;

  beforeEach(module("starter.services"));
  beforeEach(module("ngCordova"));
  beforeEach(module("ionic"));

  beforeEach(inject(function (_DatabaseCreateService_, $cordovaSQLite) {
    DatabaseCreateService = _DatabaseCreateService_;
    cordovaSQLite = $cordovaSQLite;
  }));

  it("should create the table cg_local_values", function () {
    var db = DatabaseCreateService.initDB("Test.db");
    expect(db).toBeDefined();
  });
});

我的工厂是这样的：

var initDB = function(dbName) {
  $ionicPlatform.ready(function() {
    if (window.cordova) {
      db = $cordovaSQLite.openDB(dbName);
      return db;
    }else{

      db = window.openDatabase(dbName, '1', 'my', 1024 * 1024 * 100);
      console.log(JSON.stringify(db));
      return db;
    }
  });
};

好吧，如果我 运行 karma start:

Expected undefined to be defined.
        at Object.<anonymous> (pathToTests/tests/services/DatabaseServiceTest.js:42:16)
Chrome 46.0.2490 (Mac OS X 10.11.1): Executed 24 of 24 (1 FAILED) (0.183 secs / 0.146 secs)

作为业力测试浏览器，我使用Chrome浏览器。

Answer 1

好吧，我发现我必须在 ionicPlatform 准备好后将数据库保存在 beforeEach 中。现在它看起来像这样并且它正在工作：

var DatabaseCreateService、cordovaSQLite、ionicPlatform、rootScope、q； var db=null;

beforeEach(module("starter.services"));
beforeEach(module("ngCordova"));
beforeEach(module("ionic"));

beforeEach(inject(function (_DatabaseCreateService_, $cordovaSQLite,$ionicPlatform,$rootScope,$q) {
  DatabaseCreateService = _DatabaseCreateService_;
  cordovaSQLite = $cordovaSQLite;
  ionicPlatform = $ionicPlatform;
  q = $q;
  rootScope = $rootScope;

  ionicPlatform.ready(function() {
    db = window.openDatabase("Test.db", '1', 'my', 1024 * 1024 * 100);
  });
}));