the import in a module gets a different class that the script does,

so we need to import and use that one...

catch more cases for only tagged ports..

vlanmang.py

@@ -69,9 +69,11 @@ def _intstobits(*ints):
 
 	return ''.join(r)
 
+import vlanmang
+
 def checkchanges(module):
 	mod = importlib.import_module(module)
-	mods = [ i for i in mod.__dict__.itervalues() if isinstance(i, SwitchConfig) ]
+	mods = [ i for i in mod.__dict__.itervalues() if isinstance(i, vlanmang.SwitchConfig) ]
 
 	res = []
 
@@ -121,7 +123,7 @@ def getpvidmapping(data, lookupfun):
 
 	res = []
 	for id in data:
-		for i in data[id]['u']:
+		for i in data[id].get('u', []):
 			if isinstance(i, str):
 				i = lookupfun(i)
 			res.append((i, id))
@@ -131,15 +133,15 @@ def getpvidmapping(data, lookupfun):
 def getegress(data, lookupfun):
 	r = {}
 	for id in data:
-		r[id] = _intstobits(*(getidxs(data[id]['u'], lookupfun) +
-		    getidxs(data[id].get('t', []), lookupfun)))
+		r[id] = _intstobits(*(getidxs(data[id].get('u', []),
+		    lookupfun) + getidxs(data[id].get('t', []), lookupfun)))
 
 	return r
 
 def getuntagged(data, lookupfun):
 	r = {}
 	for id in data:
-		r[id] = _intstobits(*getidxs(data[id]['u'], lookupfun))
+		r[id] = _intstobits(*getidxs(data[id].get('u', []), lookupfun))
 
 	return r
 
@@ -149,7 +151,7 @@ def getportlist(data, lookupfun):
 	res = set()
 
 	for id in data:
-		res.update(data[id]['u'])
+		res.update(data[id].get('u', []))
 		res.update(data[id].get('t', []))
 
 	# filter out the strings
@@ -230,7 +232,7 @@ class SNMPSwitch(object):
 		    ObjectType(oid),
 		    lexicographicMode=False):
 			if errorInd: # pragma: no cover
-				raise ValueError(errorIndication)
+				raise ValueError(errorInd)
 			elif errorStatus: # pragma: no cover
 				raise ValueError('%s at %s' % (errorStatus.prettyPrint(), errorIndex and varBinds[int(errorIndex)-1][0] or '?'))
 			else:
@@ -299,6 +301,9 @@ class SNMPSwitch(object):
 
 		return r
 
+if __name__ == '__main__': # pragma: no cover
+	print `checkchanges('data')`
+
 class _TestMisc(unittest.TestCase):
 	def setUp(self):
 		import test_data
@@ -319,14 +324,17 @@ class _TestMisc(unittest.TestCase):
 		data = {
 			1: {
 				'u':	[ 1, 5, 10 ] + range(13, 20),
-				't':    [ 'lag2', 6, 7 ]
+				't':    [ 'lag2', 6, 7 ],
 			},
 			10: {
 				'u':	[ 2, 3, 6, 7, 8, 'lag2' ],
 			},
 			13: {
 				'u':	[ 4, 9 ],
-				't':    [ 'lag2', 6, 7 ]
+				't':    [ 'lag2', 6, 7 ],
+			},
+			14: {
+				't':	[ 'lag2' ],
 			},
 		}
 		lookup = {
@@ -351,6 +359,7 @@ class _TestMisc(unittest.TestCase):
 			1:	'1000111001001111111' + '0' * (30 - 20) + '1',
 			10:	'01100111' + '0' * (30 - 9) + '1',
 			13:	'000101101' + '0' * (30 - 10) + '1',
+			14:	'0' * (30 - 1) + '1',
 		}
 
 		self.assertEqual(getegress(data, lufun), checkegress)
@@ -359,6 +368,7 @@ class _TestMisc(unittest.TestCase):
 			1:	'1000100001001111111',
 			10:	'01100111' + '0' * (30 - 9) + '1',
 			13:	'000100001',
+			14:	'',
 		}
 		self.assertEqual(getuntagged(data, lufun), checkuntagged)