minor improvements to coverage, ignoring buggy/tests

ui/medashare/cli.py

@@ -1369,7 +1369,7 @@ class _TestCases(unittest.TestCase):
 
 		for cmd in cmds:
 			try:
-				if cmd['skip']:
+				if cmd['skip']: # pragma: no cover
 					continue
 			except KeyError:
 				pass
@@ -1400,7 +1400,10 @@ class _TestCases(unittest.TestCase):
 				else: # pragma: no cover
 					raise ValueError('unhandled special: %s' % repr(special))
 
-				continue
+				# coverage bug, fixed in 3.10:
+				# https://github.com/nedbat/coveragepy/issues/1432#event-7130600158
+				if True: # pragma: no cover
+					continue
 
 			with self.subTest(file=f, title=cmd['title']), \
 			    mock.patch('os.path.expanduser',