// Analysis disable once InconsistentNaming
public void IsValid_ReturnsTrue_IfPixbufIsValid ()
{
var fileSystem = new FileSystemMock ();
fileSystem.SetFile (fileUri, fileMTime);
var pixbuf = PixbufMock.CreatePixbuf (fileUri, fileMTime);
var thumbnailService = new ThumbnailService (xdgDirectoryService, thumbnailerFactory, fileSystem);
var result = thumbnailService.IsValid (fileUri, pixbuf);
Assert.IsTrue (result);
}