diff --git a/cinderclient/tests/unit/v3/fakes.py b/cinderclient/tests/unit/v3/fakes.py
index 9fd614abe..910633ef3 100644
--- a/cinderclient/tests/unit/v3/fakes.py
+++ b/cinderclient/tests/unit/v3/fakes.py
@@ -20,6 +20,42 @@ from cinderclient.tests.unit import fakes
 from cinderclient.tests.unit.v2 import fakes as fake_v2
 
 
+fake_attachment = {'attachment': {
+    'status': 'reserved',
+    'detached_at': '',
+    'connection_info': {},
+    'attached_at': '',
+    'attach_mode': None,
+    'id': 'a232e9ae',
+    'instance': 'e84fda45-4de4-4ce4-8f39-fc9d3b0aa05e',
+    'volume_id': '557ad76c-ce54-40a3-9e91-c40d21665cc3', }}
+
+fake_connection_info = {
+    'auth_password': 'i6h9E5HQqSkcGX3H',
+    'attachment_id': 'a232e9ae',
+    'target_discovered': False,
+    'encrypted': False,
+    'driver_volume_type': 'iscsi',
+    'qos_specs': None,
+    'target_iqn': 'iqn.2010-10.org.openstack:volume-557ad76c',
+    'target_portal': '10.117.36.28:3260',
+    'volume_id': '557ad76c-ce54-40a3-9e91-c40d21665cc3',
+    'target_lun': 0,
+    'access_mode': 'rw',
+    'auth_username': 'MwRrnAFLHN7enw5R95yM',
+    'auth_method': 'CHAP'}
+
+fake_connector = {
+    'initiator': 'iqn.1993-08.org.debian:01:b79dbce99387',
+    'mount_device': '/dev/vdb',
+    'ip': '10.117.36.28',
+    'platform': 'x86_64',
+    'host': 'os-2',
+    'do_local_attach': False,
+    'os_type': 'linux2',
+    'multipath': False}
+
+
 def _stub_group(detailed=True, **kwargs):
     group = {
         "name": "test-1",
@@ -241,12 +277,9 @@ class FakeHTTPClient(fake_v2.FakeHTTPClient):
     #
     # Attachments
     #
+
     def post_attachments(self, **kw):
-        return (202, {}, {
-            'attachment': {'instance': 1234,
-                           'name': 'attachment-1',
-                           'volume_id': 'fake_volume_1',
-                           'status': 'reserved'}})
+        return (200, {}, fake_attachment)
 
     def get_attachments(self, **kw):
         return (200, {}, {
@@ -259,6 +292,16 @@ class FakeHTTPClient(fake_v2.FakeHTTPClient):
                              'volume_id': 'fake_volume_2',
                              'status': 'reserverd'}]})
 
+    def post_attachments_a232e9ae_action(self, **kw):  # noqa: E501
+        attached_fake = fake_attachment
+        attached_fake['status'] = 'attached'
+        return (200, {}, attached_fake)
+
+    def post_attachments_1234_action(self, **kw):  # noqa: E501
+        attached_fake = fake_attachment
+        attached_fake['status'] = 'attached'
+        return (200, {}, attached_fake)
+
     def get_attachments_1234(self, **kw):
         return (200, {}, {
             'attachment': {'instance': 1234,
@@ -294,7 +337,7 @@ class FakeHTTPClient(fake_v2.FakeHTTPClient):
         return (200, {}, {'group_type': {'id': 1,
                           'name': 'test-type-1',
                           'description': 'test_type-1-desc',
-                          'group_specs': {u'key': u'value'}}})
+                          'group_specs': {'key': 'value'}}})
 
     def get_group_types_2(self, **kw):
         return (200, {}, {'group_type': {'id': 2,
diff --git a/cinderclient/tests/unit/v3/test_attachments.py b/cinderclient/tests/unit/v3/test_attachments.py
new file mode 100644
index 000000000..5fee5b4c4
--- /dev/null
+++ b/cinderclient/tests/unit/v3/test_attachments.py
@@ -0,0 +1,36 @@
+# Copyright (C) 2016 EMC Corporation.
+#
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from cinderclient.tests.unit import utils
+from cinderclient.tests.unit.v3 import fakes
+
+cs = fakes.FakeClient()
+
+
+class AttachmentsTest(utils.TestCase):
+
+    def test_create_attachment(self):
+        att = cs.attachments.create(
+            'e84fda45-4de4-4ce4-8f39-fc9d3b0aa05e',
+            {},
+            '557ad76c-ce54-40a3-9e91-c40d21665cc3')
+        cs.assert_called('POST', '/attachments')
+        self.assertEqual(fakes.fake_attachment['attachment'], att)
+
+    def test_complete_attachment(self):
+        att = cs.attachments.complete(
+            'a232e9ae')
+        self.assertTrue(att.ok)
diff --git a/cinderclient/tests/unit/v3/test_shell.py b/cinderclient/tests/unit/v3/test_shell.py
index a7be695d4..ce24763dd 100644
--- a/cinderclient/tests/unit/v3/test_shell.py
+++ b/cinderclient/tests/unit/v3/test_shell.py
@@ -376,6 +376,12 @@ class ShellTest(utils.TestCase):
         self.assert_called('PUT', '/attachments/1234', body={'attachment':
                                                              body})
 
+    @ddt.unpack
+    def test_attachment_complete(self):
+        command = '--os-volume-api-version 3.44 attachment-complete 1234'
+        self.run_command(command)
+        self.assert_called('POST', '/attachments/1234/action', body=None)
+
     def test_attachment_delete(self):
         self.run_command('--os-volume-api-version 3.27 '
                          'attachment-delete 1234')
diff --git a/cinderclient/v3/attachments.py b/cinderclient/v3/attachments.py
index 614662684..aaa8bcf2f 100644
--- a/cinderclient/v3/attachments.py
+++ b/cinderclient/v3/attachments.py
@@ -12,6 +12,7 @@
 
 """Attachment interface."""
 
+from cinderclient import api_versions
 from cinderclient import base
 
 
@@ -64,9 +65,12 @@ class VolumeAttachmentManager(base.ManagerWithFind):
         """Attachment update."""
         body = {'attachment': {'connector': connector}}
         resp = self._update('/attachments/%s' % id, body)
+        # NOTE(jdg): This kinda sucks,
+        # create returns a dict, but update returns an object :(
         return self.resource_class(self, resp['attachment'], loaded=True,
                                    resp=resp)
 
+    @api_versions.wraps('3.44')
     def complete(self, attachment):
         """Mark the attachment as completed."""
         resp, body = self._action_return_resp_and_body('os-complete',