Port key manager to Python 3

* Replace text.decode('hex') with binascii.unhexlify(text)
* test_barbican: base64 string is a bytes string
* tests-py3.txt: add keymgr tests

Partial-Implements: blueprint cinder-python3
Change-Id: Icc19fa354603857b259458b858e27c5bdd600360

cinder/keymgr/conf_key_mgr.py

@@ -32,6 +32,7 @@ encryption key so *any* volume can be decrypted once the fixed key is known.
 """
 
 import array
+import binascii
 
 from oslo_config import cfg
 from oslo_log import log as logging
@@ -70,8 +71,8 @@ class ConfKeyManager(key_mgr.KeyManager):
 
     def _generate_key(self, **kwargs):
         _hex = self._generate_hex_key(**kwargs)
-        return key.SymmetricKey('AES',
+        key_list = array.array('B', binascii.unhexlify(_hex)).tolist()
-                                array.array('B', _hex.decode('hex')).tolist())
+        return key.SymmetricKey('AES', key_list)
 
     def _generate_hex_key(self, **kwargs):
         if CONF.keymgr.fixed_key is None:

cinder/tests/unit/keymgr/test_barbican.py

@@ -205,7 +205,7 @@ class BarbicanKeyManagerTestCase(test_key_mgr.KeyManagerTestCase):
         returned_uuid = self.key_mgr.store_key(self.ctxt, _key, bit_length=32)
 
         self.create.assert_called_once_with('Cinder Volume Key',
-                                            'AQKgsw==',
+                                            b'AQKgsw==',
                                             'application/octet-stream',
                                             'base64',
                                             'AES', 32, 'CBC',

cinder/tests/unit/keymgr/test_conf_key_mgr.py

@@ -18,6 +18,7 @@ Test cases for the conf key manager.
 """
 
 import array
+import binascii
 
 from oslo_config import cfg
 
@@ -48,7 +49,7 @@ class ConfKeyManagerTestCase(test_key_mgr.KeyManagerTestCase):
         self.ctxt = context.RequestContext('fake', 'fake')
 
         self.key_id = '00000000-0000-0000-0000-000000000000'
-        encoded = array.array('B', self._hex_key.decode('hex')).tolist()
+        encoded = array.array('B', binascii.unhexlify(self._hex_key)).tolist()
         self.key = key.SymmetricKey('AES', encoded)
 
     def test___init__(self):

cinder/tests/unit/keymgr/test_key.py

@@ -17,8 +17,6 @@
 Test cases for the key classes.
 """
 
-import array
-
 from cinder.keymgr import key
 from cinder import test
 
@@ -41,7 +39,7 @@ class SymmetricKeyTestCase(KeyTestCase):
 
     def setUp(self):
         self.algorithm = 'AES'
-        self.encoded = array.array('B', ('0' * 64).decode('hex')).tolist()
+        self.encoded = [0] * 32
 
         super(SymmetricKeyTestCase, self).setUp()
 

tests-py3.txt

@@ -18,7 +18,12 @@ cinder.tests.unit.api.test_versions
 cinder.tests.unit.api.test_xmlutil
 cinder.tests.unit.image.test_cache
 cinder.tests.unit.image.test_glance
+cinder.tests.unit.keymgr.test_barbican
+cinder.tests.unit.keymgr.test_conf_key_mgr
+cinder.tests.unit.keymgr.test_key
+cinder.tests.unit.keymgr.test_key_mgr
 cinder.tests.unit.keymgr.test_mock_key_mgr
+cinder.tests.unit.keymgr.test_not_implemented_key_mgr
 cinder.tests.unit.scheduler.test_allocated_capacity_weigher
 cinder.tests.unit.scheduler.test_capacity_weigher
 cinder.tests.unit.scheduler.test_chance_weigher