使用Jasmine测试一个简单的AngularJS服务

发布时间：2020-12-17 07:41:50 所属栏目：安全来源：网络整理

导读：我有一个简单的服务,我正在尝试单元测试.无论我尝试什么,searchService是一个未知的提供者,或者服务是空的(这足以使我的测试失败!!). 任何人都有洞察我可能做错了什么？ angular.module('app').service('searchService',function( $q,_ ) { // _ is lodash v

我有一个简单的服务,我正在尝试单元测试.无论我尝试什么,searchService是一个未知的提供者,或者服务是空的(这足以使我的测试失败!!).

任何人都有洞察我可能做错了什么？

angular.module('app').service('searchService',function( $q,_ ) { // _ is lodash

  var cache = [
    {
      id: "current",name: "Current",description: "Search current data"
    },{
      id: "historical",name: "Historical",description: "Search historical data"
    }
  ];

  this.getSearchOptions = function() {
    var deferred = $q.defer();
    deferred.resolve( angular.copy( cache ) );
    return( deferred.promise );
  };

  this.getSearchOptionsByID = function( id ) {
    var deferred = $q.defer();
    var searchOption = _.findWithProperty( cache,"id",id );

    if ( searchOption ) {
      deferred.resolve( angular.copy( searchOption ) );
    } else {
      deferred.reject();
    }
    return( deferred.promise );
   };
  }
);

我正在尝试创建一个加载在searchService中的单元测试,以便我可以检查缓存的值：

describe("Unit: Testing Services",function() {
  describe("Search Service:",function() {
    var service = null;

    beforeEach(function() {
      angular.module('app').service('_');
    });
    // I've also tried the commented out code below
    //beforeEach(inject(function(searchService) {
    //this.service = searchService;
    //}));
    //it('should contain an searchService',invoke(function(service) {

    it('should contain an searchService',function(searchService) {
      expect(searchService).not.to.equal(null);
    });

    it('should contain two search options',function(searchService) {
      expect(searchService.getSearchOptions()).to.equal(2);
    });
  });
});

以下内容应该适用于没有参数的服务,也许这可以是一个起点：

describe("Unit: Testing Services",function() {
    describe("Search Service:",function() {

        beforeEach(function() {
            angular.module('app');
        });

        it('should contain a searchService',inject(function(searchService) {
                expect(searchService).not.to.equal(null);
        }));

        it('should contain two search options',inject(function(searchService) {
                expect(searchService.getSearchOptions()).to.equal(2);
        }));

   });
});

(您也可以看看这里：How do I test an AngularJS service with Jasmine?)

（编辑：李大同）

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