make sure we iterate through possible returns from rglob

ui/medashare/btv/__init__.py

@@ -144,11 +144,15 @@ def validate_file(fname):
 
 	finddname = glob_escape(torrent['info']['name'].decode(_encoding))
 
-	dirname = list(fname.parent.rglob(finddname))[0]
+	for dirname in fname.parent.rglob(finddname):
+		tordir = dirname.parent
 
-	tordir = dirname.parent
-
-	return validate(torrent, tordir)
+		try:
+			return validate(torrent, tordir)
+		except FileNotFoundError as e:
+			continue
+	else:
+		raise FileNotFoundError('unable to find directory for %s' % (repr(fname.name)))
 
 def validate(torrent, basedir):
 	'''Take a decode torrent file, where it was stored in basedir,
@@ -256,7 +260,25 @@ class _TestCases(unittest.TestCase):
 
 		self.make_files(sd, self.origfiledata)
 
-		good, bad = validate_file(tf)
+		origrglob = pathlib.PosixPath.rglob
+
+		def _rglob_patch(b):
+			return ()
+
+		with unittest.mock.patch.object(pathlib.PosixPath, 'rglob',
+		    side_effect=_rglob_patch):
+			self.assertRaisesRegex(FileNotFoundError,
+			    'unable to find directory for \'a.torrent\'',
+			    validate_file, tf)
+
+		def _rglob_patch(b):
+			return list(pathlib.PosixPath(x) for x in
+			    [ 'randomdir', 'somedir' ]) + \
+			    list(origrglob(pathlib.PosixPath('.'), 'somedir'))
+
+		with unittest.mock.patch.object(pathlib.PosixPath, 'rglob',
+		    side_effect=_rglob_patch):
+			good, bad = validate_file(tf)
 
 		self.assertFalse(bad)