public void TestSamplingPointImageAddAsync_ServerAcceptsSamplingPointImage_ReturnsFilename()
        {
            const string surveyId        = "SurveyId";
            const string samplingPointId = "SamplingPointId";
            const string fileName        = "1.jpg";
            string       filePath        = Path.Combine(Directory.GetCurrentDirectory(), "Resources", fileName);

            var content = new ByteArrayContent(File.ReadAllBytes(filePath));

            var mockedNfieldConnection = new Mock <INfieldConnectionClient>();
            var mockedHttpClient       = CreateHttpClientMock(mockedNfieldConnection);

            mockedHttpClient.Setup(client => client.PostAsync(It.IsAny <string>(), It.IsAny <ByteArrayContent>()))
            .Returns(CreateTask(HttpStatusCode.OK, new StringContent(JsonConvert.SerializeObject(fileName))));

            var target = new NfieldSurveysService();

            target.InitializeNfieldConnection(mockedNfieldConnection.Object);

            var result = target.SamplingPointImageAddAsync(surveyId, samplingPointId, filePath).Result;

            Assert.Equal(fileName, result);
        }