Use assertIsNotNone as suggested in review, thanks @albu-diku.

git-svn-id: svn+ssh://svn.code.sf.net/p/migrid/code/trunk@6117 b75ad72c-e7d7-11dd-a971-7dbc132099af

Author: jonasbardino

tests/test_mig_shared_ssh.py

@@ -59,7 +59,7 @@ def test_ssh_key_generate_and_parse(self):
             except ValueError as vae:
                 #print("Error in parsing pub key: %r" % vae)
                 parsed = None
-            self.assertTrue(parsed is not None)
+            self.assertIsNotNone(parsed)
 
             (priv_key, pub_key) = generate_ssh_rsa_key_pair(size=keysize,
                                                             encode_utf8=True)