Fixed broken file mover test

NzbDrone.Core.Test/MediaFileTests/EpisodeFileMoverFixture.cs

@@ -55,6 +55,10 @@ namespace NzbDrone.Core.Test.MediaFileTests
                   .Setup(e => e.BuildFilePath(It.IsAny<Series>(), fakeEpisode.First().SeasonNumber, filename, ".avi"))
                   .Returns(fi);
 
+            Mocker.GetMock<IDiskProvider>()
+                  .Setup(s => s.FileExists(fi))
+                  .Returns(true);
+
             var result = Subject.MoveEpisodeFile(file);
 
             result.Should().BeNull();