unit-testing - 如何为依赖于外部服务的 Angular $resource 存根响应？

Question

如何存根响应而不是查询依赖于外部服务的 $resource？我收到一个错误：Error: Unexpected request: GET data/counties.json

这是我的服务：

angular.module('myApp.services', ['ngResource']).
  factory("geoProvider", function($resource){
    return {
      states: $resource('data/states.json', {}, {
        query: {method: 'GET', params: {}, isArray: false}
      }),
      counties: $resource('data/counties.json', {}, {
        query: {method: 'GET', params: {}, isArray: false}
      })
   };
});

规格：

describe('service', function() {
  beforeEach(module('myApp.services'));

    describe('geoProvider', function() {
    it('should return data / JSON', inject(function(geoProvider){
      var data = geoProvider.counties.query();
     expect(data).toBe(some);
    }));

  });
});

Answer 1

您可以将$httpBackend注入您的测试并将其配置为预期您需要的请求：

describe('service', function() {
    var $httpBackend;

    beforeEach(module('myApp.services'));

    beforeEach(inject(function(_$httpBackend_) {
        $httpBackend = _$httpBackend_;
    }));

    it('should return data / JSON', inject(function(geoProvider){
        $httpBackend.expectGET('yoururl').respond({/* the response object */});

        var data = geoProvider.counties.query();

        $httpBackend.flush();

        expect(data).toBe(some);
    }));
});