public void WatchFile_MovedIn(
FilePath path,
FileName name,
[Frozen] MockFileSystemWatcher mockFileWatcher,
[Frozen] MockFileSystem fs)
{
int count = 0;
using var sub = ObservableExt.WatchFile(Path.Combine(path.Directory !.Value, name.String), fileWatcherFactory: fs.FileSystemWatcher)
.Subscribe(x => count++);
fs.File.WriteAllText(path, string.Empty);
count.Should().Be(0);
mockFileWatcher.MarkRenamed(path, name);
count.Should().Be(1);
}