public async Task GetDamageCodesShouldSucceed() { //Arrange var responseMessage = new HttpResponseMessage { StatusCode = HttpStatusCode.OK, Content = new StringContent(string.Empty, Encoding.UTF8, "application/json") }; var jsonServiceMock = new Mock <IJsonService <object> >(); jsonServiceMock .Setup(x => x.DeserializeObject <DamageCodesModel>(It.IsAny <string>())) .Returns(new DamageCodesModel()); var jsonService = jsonServiceMock.Object; var filterMapper = new Mock <IFilterMapper>().Object; var usersRestApi = new Mock <IUsersRestApi>().Object; var teamsRestApi = new Mock <ITeamsRestApi>().Object; var locationBuildService = new Mock <ILocationBuildService>().Object; var mapper = new Mock <IMapper>().Object; var workOrderRestApi = new Mock <IWorkOrdersRestApi>().Object; var filterBuildService = new Mock <IFilterBuildService>().Object; var eccRestApiMock = new Mock <IEccSetupRestApi>(); eccRestApiMock .Setup(x => x.GetDamageCodes(It.IsAny <string>())) .Returns(Task.FromResult(responseMessage)); var eccRestApi = eccRestApiMock.Object; var modelDtoConverter = new Mock <IModelDtoConverter>().Object; var service = new MobileService(usersRestApi, teamsRestApi, eccRestApi, workOrderRestApi, filterMapper, filterBuildService, jsonService, locationBuildService, modelDtoConverter, mapper); //Act var response = await service.GetDamageCodes(); //Assert response.IsSuccess.Should().BeTrue(); }