Fixes nxos_vpc_interface (#25907)

* nxos_vpc_interface fix

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* nxos_vpc_interface unit test

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* fix state_present

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* add state_present unit test

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* make ansibot happy

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* teardown get_config

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

test/sanity/pep8/legacy-files.txt

@@ -389,7 +389,6 @@ lib/ansible/modules/network/nxos/nxos_system.py
 lib/ansible/modules/network/nxos/nxos_udld.py
 lib/ansible/modules/network/nxos/nxos_udld_interface.py
 lib/ansible/modules/network/nxos/nxos_user.py
-lib/ansible/modules/network/nxos/nxos_vpc_interface.py
 lib/ansible/modules/network/nxos/nxos_vrf.py
 lib/ansible/modules/network/nxos/nxos_vrf_interface.py
 lib/ansible/modules/network/nxos/nxos_vrrp.py

test/units/modules/network/nxos/fixtures/nxos_vpc_interface/show_port-channel_summary

@@ -0,0 +1,22 @@
+{
+  "TABLE_channel": {
+    "ROW_channel": [
+      {
+        "group": "10",
+        "port-channel": "port-channel10",
+        "layer": "R",
+        "status": "D",
+        "type": "Eth",
+        "prtcl": "NONE"
+      },
+      {
+        "group": "20",
+        "port-channel": "port-channel20",
+        "layer": "R",
+        "status": "D",
+        "type": "Eth",
+        "prtcl": "NONE"
+      }
+    ]
+  }
+}

test/units/modules/network/nxos/fixtures/nxos_vpc_interface/show_vpc_brief

@@ -0,0 +1,14 @@
+{
+  "TABLE_vpc": {
+    "ROW_vpc": [
+      {
+	"vpc-id": 100,
+	"vpc-ifindex": "Po10",
+	"vpc-port-state": "Up",
+	"vpc-thru-peerlink": 19,
+	"vpc-consistency": "consistent",
+	"vpc-consistency-status": "SUCCESS"
+       }
+    ]
+  }
+}

test/units/modules/network/nxos/test_nxos_vpc_interface.py

@@ -0,0 +1,69 @@
+# (c) 2016 Red Hat Inc.
+#
+# This file is part of Ansible
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+import os
+
+from ansible.compat.tests.mock import patch
+from ansible.modules.network.nxos import nxos_vpc_interface
+from .nxos_module import TestNxosModule, load_fixture, set_module_args
+
+
+class TestNxosVpcModule(TestNxosModule):
+
+    module = nxos_vpc_interface
+
+    def setUp(self):
+        self.mock_load_config = patch('ansible.modules.network.nxos.nxos_vpc_interface.load_config')
+        self.load_config = self.mock_load_config.start()
+
+        self.mock_get_config = patch('ansible.modules.network.nxos.nxos_vpc_interface.get_config')
+        self.get_config = self.mock_get_config.start()
+
+        self.mock_run_commands = patch('ansible.modules.network.nxos.nxos_vpc_interface.run_commands')
+        self.run_commands = self.mock_run_commands.start()
+
+    def tearDown(self):
+        self.mock_load_config.stop()
+        self.mock_get_config.stop()
+        self.mock_run_commands.stop()
+
+    def load_fixtures(self, commands=None):
+        def load_from_file(*args, **kwargs):
+            module, commands = args
+            output = list()
+            for command in commands:
+                filename = str(command).split(' | ')[0].replace(' ', '_')
+                filename = os.path.join('nxos_vpc_interface', filename)
+                output.append(load_fixture(filename))
+            return output
+
+        self.run_commands.side_effect = load_from_file
+        self.load_config.return_value = None
+
+    def test_nxos_vpc_interface_absent(self):
+        set_module_args(dict(portchannel=10, vpc=100, state='absent'))
+        result = self.execute_module(changed=True)
+        self.assertEqual(result['commands'], ['interface port-channel10', 'no vpc'])
+
+    def test_nxos_vpc_interface_present(self):
+        set_module_args(dict(portchannel=20, vpc=200, state='present'))
+        result = self.execute_module(changed=True)
+        self.assertEqual(result['commands'], ['interface port-channel20', 'vpc 200'])