add some basic tests for SNMPSwitch that don't depend upon hardware...

vlanmang.py

@@ -531,7 +531,31 @@ class _TestMisc(unittest.TestCase):
 
 		self.assertEqual(set(res), set(validres))
 
-_skipSwitchTests = False
+class _TestSNMPSwitch(unittest.TestCase):
+	def test_splitmany(self):
+		# make sure that if we get a tooBig error that we split the
+		# _getmany request
+
+		switch = SNMPSwitch(None, None)
+
+	@mock.patch('vlanmang.SNMPSwitch._getmany')
+	def test_get(self, gm):
+		# that a switch
+		switch = SNMPSwitch(None, None)
+
+		# when _getmany returns this structure
+		retval = object()
+		gm.side_effect = [[[ None, retval ]]]
+
+		arg = object()
+
+		# will return the correct value
+		self.assertIs(switch._get(arg), retval)
+
+		# and call _getmany w/ the correct arg
+		gm.assert_called_with(arg)
+
+_skipSwitchTests = True
 
 class _TestSwitch(unittest.TestCase):
 	def setUp(self):