public async void DeleteMarkingSession_InternalServerErrorStatusCode_ThrowsException()
        {
            // Arrange
            var httpService         = new Mock <IHttpService>();
            var httpResponseMessage = new HttpResponseMessage
            {
                StatusCode = HttpStatusCode.InternalServerError,
                Content    = new StringContent("")
            };

            httpService
            .Setup(m => m.DeleteAsync(It.IsAny <string>()))
            .ReturnsAsync(httpResponseMessage);
            var       markingServiceClient = new MarkingServiceClient(httpService.Object);
            Exception exception            = null;

            try
            {
                // Act
                await markingServiceClient.DeleteEmptyMarkingSession(It.IsAny <string>());
            }
            catch (FailedToDeleteMarkSessionException e)
            {
                exception = e;
            }

            // Assert
            Assert.NotNull(exception);
        }
        public async void DeleteEmptyMarkingSession_MissingProjectId_ThrowsException()
        {
            // Arrange
            var       markSessionId        = "5b07def67aa54a0007b3db53";
            var       httpService          = new HttpService(new HttpClient());
            var       markingServiceClient = new MarkingServiceClient(httpService);
            Exception exception            = null;

            try
            {
                // Act
                await markingServiceClient.DeleteEmptyMarkingSession(markSessionId);
            }
            catch (Exception e)
            {
                exception = e;
            }

            // Assert
            Assert.NotNull(exception);
        }