Add more tests for the Key model. Remove the key_id field and made it a property derived from the fingerprint.

mayan/apps/django_gpg/classes.py

@@ -3,9 +3,13 @@ from __future__ import absolute_import, unicode_literals
 
 class KeyStub(object):
     def __init__(self, raw):
-        self.key_id = raw['keyid']
+        self.fingerprint = raw['keyid']
         self.key_type = raw['type']
         self.date = raw['date']
         self.expires = raw['expires']
         self.length = raw['length']
         self.uids = raw['uids']
+
+    @property
+    def key_id(self):
+        return self.fingerprint[-8:]