public void TestUploadInterviewerInstructionsAsync_FileExists_FileUpload()
{
const string surveyId = "SurveyId";
const string fileName = "asp.net-web-api-poster.pdf";
var file = Path.Combine(Directory.GetCurrentDirectory(), "Resources", fileName);
var mockedNfieldConnection = new Mock<INfieldConnectionClient>();
var mockedHttpClient = CreateHttpClientMock(mockedNfieldConnection);
mockedHttpClient.Setup( client => client.PostAsync(It.IsAny<string>(), It.IsAny<HttpContent>()))
.Returns(CreateTask(HttpStatusCode.OK));
var target = new NfieldSurveysService();
target.InitializeNfieldConnection(mockedNfieldConnection.Object);
target.UploadInterviewerFileInstructionsAsync(file, surveyId);
mockedHttpClient.Verify(
hc => hc.PostAsync(It.Is<string>(uri => uri.Contains(fileName) && uri.Contains(surveyId)),
It.IsAny<HttpContent>()), Times.Once());
}