public void TestAddAsync_ServerAcceptsLanguage_ReturnsLanguage()
{
var language = new Language { Name = "Language X" };
var mockedNfieldConnection = new Mock<INfieldConnectionClient>();
var mockedHttpClient = CreateHttpClientMock(mockedNfieldConnection);
var content = new StringContent(JsonConvert.SerializeObject(language));
mockedHttpClient
.Setup(client => client.PostAsJsonAsync(ServiceAddress + "Surveys/" + SurveyId + "/Languages", language))
.Returns(CreateTask(HttpStatusCode.OK, content));
var target = new NfieldLanguagesService();
target.InitializeNfieldConnection(mockedNfieldConnection.Object);
var actual = target.AddAsync(SurveyId, language).Result;
Assert.Equal(language.Name, actual.Name);
}