bug#21432: 25.0.50; file-notify-rm-watch (inotify) errors if watched dir is deleted

[Tassilo Horn <tsdh@gnu.org>]

Eli Zaretskii <eliz@gnu.org> writes:

>> What seems wrong to me is that the descriptors stay valid even when
>> the watched file or directory is deleted.  For files this might be ok
>> (though maybe inotify-specific) because when I create a new file with
>> the same name, the watch will trigger.
>> 
>> However, the current hehavior is certainly wrong for directories.
>> When I deleted the watched directory, the descriptor is still valid,
>> but calling file-notify-rm-watch on it signals an error.
>
> AFAIR, filenotify.el watches the parent directory of the
> file/directory you asked it to watch.  So to see the invalid-p method
> in action you need to remove the parent, not the directory itself.

Ah, I see.  I'll adapt the tests accordingly.

Bye,
Tassilo