public async Task FileRenamed()
{
_fs.Create(_dir);
_fs.Create(_file).Dispose();
var tmpFile = _file.Rename(Guid.NewGuid() + ".txt");
var renamed = _fs.Watch(_file).Take(1).ToTask();
_fs.Move(_file, tmpFile);
Assert.AreEqual(Unit.Default, await renamed.TimeoutAfter(TimeSpan.FromSeconds(2)), "Did not get file moved event!");
var renamedBack = _fs.Watch(_file).Take(1).ToTask();
_fs.Move(tmpFile, _file);
Assert.AreEqual(Unit.Default, await renamedBack.TimeoutAfter(TimeSpan.FromSeconds(2)), "Did not get file moved event!");
}