public void GetDownloadsReadyForUpload_WhenNoFilesReadyForUpload_ReturnsEmptyList()
{
dbDataReaderMock.ClearSubstitute();
dbDataReaderMock.Read().Returns(false);
List <int> actual = systemUnderTest.GetDownloadsReadyForUpload().ToList();
Assert.That(actual.Count, Is.EqualTo(0));
}