[Compute] Check return value is None in compute unit tests.

take_action() in commands inheriting from Command returns nothing.
So we should assert the return is None in the unit tests of
these commands.

Change-Id: I953480ecff3b5beb12255d866d0e1df45f130efd
Partial-Bug: #1550636

3 files changed, 33 insertions, 45 deletions

diff --git a/openstackclient/tests/compute/v2/test_flavor.py b/openstackclient/tests/compute/v2/test_flavor.py
index 781e3068..5000e6a0 100644
--- a/openstackclient/tests/compute/v2/test_flavor.py
+++ b/openstackclient/tests/compute/v2/test_flavor.py
@@ -49,12 +49,12 @@ class TestFlavorDelete(TestFlavor):
         verifylist = [
             ('flavor', self.flavor.id),
         ]
-
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
         self.flavors_mock.delete.assert_called_with(self.flavor.id)
+        self.assertIsNone(result)
 
     def test_flavor_delete_with_unexist_flavor(self):
         self.flavors_mock.get.side_effect = exceptions.NotFound(None)
diff --git a/openstackclient/tests/compute/v2/test_server.py b/openstackclient/tests/compute/v2/test_server.py
index d379b173..aa8d7335 100644
--- a/openstackclient/tests/compute/v2/test_server.py
+++ b/openstackclient/tests/compute/v2/test_server.py
@@ -78,11 +78,12 @@ class TestServer(compute_fakes.TestComputev2):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
         for s in servers:
             method = getattr(s, method_name)
             method.assert_called_with()
+        self.assertIsNone(result)
 
 
 class TestServerCreate(TestServer):
@@ -416,11 +417,10 @@ class TestServerDelete(TestServer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
-        self.servers_mock.delete.assert_called_with(
-            servers[0].id,
-        )
+        self.servers_mock.delete.assert_called_with(servers[0].id)
+        self.assertIsNone(result)
 
     def test_server_delete_multi_servers(self):
         servers = self.setup_servers_mock(count=3)
@@ -435,12 +435,13 @@ class TestServerDelete(TestServer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
         calls = []
         for s in servers:
             calls.append(call(s.id))
         self.servers_mock.delete.assert_has_calls(calls)
+        self.assertIsNone(result)
 
     @mock.patch.object(common_utils, 'wait_for_delete', return_value=True)
     def test_server_delete_wait_ok(self, mock_wait_for_delete):
@@ -454,17 +455,15 @@ class TestServerDelete(TestServer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
-
-        self.servers_mock.delete.assert_called_with(
-            servers[0].id,
-        )
+        result = self.cmd.take_action(parsed_args)
 
+        self.servers_mock.delete.assert_called_with(servers[0].id)
         mock_wait_for_delete.assert_called_once_with(
             self.servers_mock,
             servers[0].id,
             callback=server._show_progress
         )
+        self.assertIsNone(result)
 
     @mock.patch.object(common_utils, 'wait_for_delete', return_value=False)
     def test_server_delete_wait_fails(self, mock_wait_for_delete):
@@ -480,10 +479,7 @@ class TestServerDelete(TestServer):
 
         self.assertRaises(SystemExit, self.cmd.take_action, parsed_args)
 
-        self.servers_mock.delete.assert_called_with(
-            servers[0].id,
-        )
-
+        self.servers_mock.delete.assert_called_with(servers[0].id)
         mock_wait_for_delete.assert_called_once_with(
             self.servers_mock,
             servers[0].id,
@@ -910,15 +906,14 @@ class TestServerResize(TestServer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
-        self.servers_mock.get.assert_called_with(
-            self.server.id,
-        )
+        self.servers_mock.get.assert_called_with(self.server.id)
 
         self.assertNotCalled(self.servers_mock.resize)
         self.assertNotCalled(self.servers_mock.confirm_resize)
         self.assertNotCalled(self.servers_mock.revert_resize)
+        self.assertIsNone(result)
 
     def test_server_resize(self):
         arglist = [
@@ -933,21 +928,19 @@ class TestServerResize(TestServer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
-        self.servers_mock.get.assert_called_with(
-            self.server.id,
-        )
+        self.servers_mock.get.assert_called_with(self.server.id)
         self.flavors_mock.get.assert_called_with(
             self.flavors_get_return_value.id,
         )
-
         self.servers_mock.resize.assert_called_with(
             self.server,
             self.flavors_get_return_value,
         )
         self.assertNotCalled(self.servers_mock.confirm_resize)
         self.assertNotCalled(self.servers_mock.revert_resize)
+        self.assertIsNone(result)
 
     def test_server_resize_confirm(self):
         arglist = [
@@ -961,17 +954,13 @@ class TestServerResize(TestServer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
-
-        self.servers_mock.get.assert_called_with(
-            self.server.id,
-        )
+        result = self.cmd.take_action(parsed_args)
 
+        self.servers_mock.get.assert_called_with(self.server.id)
         self.assertNotCalled(self.servers_mock.resize)
-        self.servers_mock.confirm_resize.assert_called_with(
-            self.server,
-        )
+        self.servers_mock.confirm_resize.assert_called_with(self.server)
         self.assertNotCalled(self.servers_mock.revert_resize)
+        self.assertIsNone(result)
 
     def test_server_resize_revert(self):
         arglist = [
@@ -985,17 +974,13 @@ class TestServerResize(TestServer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
-
-        self.servers_mock.get.assert_called_with(
-            self.server.id,
-        )
+        result = self.cmd.take_action(parsed_args)
 
+        self.servers_mock.get.assert_called_with(self.server.id)
         self.assertNotCalled(self.servers_mock.resize)
         self.assertNotCalled(self.servers_mock.confirm_resize)
-        self.servers_mock.revert_resize.assert_called_with(
-            self.server,
-        )
+        self.servers_mock.revert_resize.assert_called_with(self.server)
+        self.assertIsNone(result)
 
 
 class TestServerResume(TestServer):
diff --git a/openstackclient/tests/compute/v2/test_service.py b/openstackclient/tests/compute/v2/test_service.py
index 54adaab3..2f8b2e7d 100644
--- a/openstackclient/tests/compute/v2/test_service.py
+++ b/openstackclient/tests/compute/v2/test_service.py
@@ -49,11 +49,12 @@ class TestServiceDelete(TestService):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
         self.service_mock.delete.assert_called_with(
             compute_fakes.service_binary,
         )
+        self.assertIsNone(result)
 
 
 class TestServiceList(TestService):
@@ -124,12 +125,13 @@ class TestServiceSet(TestService):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
         self.service_mock.enable.assert_called_with(
             compute_fakes.service_host,
             compute_fakes.service_binary,
         )
+        self.assertIsNone(result)
 
     def test_service_set_disable(self):
         arglist = [
@@ -144,9 +146,10 @@ class TestServiceSet(TestService):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.cmd.take_action(parsed_args)
+        result = self.cmd.take_action(parsed_args)
 
         self.service_mock.disable.assert_called_with(
             compute_fakes.service_host,
             compute_fakes.service_binary,
         )
+        self.assertIsNone(result)