Pluribus Network vrouter ospf module with unit tests (#56435)

* Pluribus Network vrouter ospf module with unit tests

* Sanity fix

* Doc fixes

test/units/modules/network/netvisor/test_pn_vrouter_ospf.py

@@ -0,0 +1,61 @@
+# Copyright: (c) 2018, Pluribus Networks
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+import json
+
+from units.compat.mock import patch
+from ansible.modules.network.netvisor import pn_vrouter_ospf
+from units.modules.utils import set_module_args
+from .nvos_module import TestNvosModule, load_fixture
+
+
+class TestVrouterOSPFModule(TestNvosModule):
+
+    module = pn_vrouter_ospf
+
+    def setUp(self):
+        self.mock_run_nvos_commands = patch('ansible.modules.network.netvisor.pn_vrouter_ospf.run_cli')
+        self.run_nvos_commands = self.mock_run_nvos_commands.start()
+
+        self.mock_run_check_cli = patch('ansible.modules.network.netvisor.pn_vrouter_ospf.check_cli')
+        self.run_check_cli = self.mock_run_check_cli.start()
+
+    def tearDown(self):
+        self.mock_run_nvos_commands.stop()
+
+    def run_cli_patch(self, module, cli, state_map):
+        if state_map['present'] == 'vrouter-ospf-add':
+            results = dict(
+                changed=True,
+                cli_cmd=cli
+            )
+        elif state_map['absent'] == 'vrouter-ospf-remove':
+            results = dict(
+                changed=True,
+                cli_cmd=cli
+            )
+        module.exit_json(**results)
+
+    def load_fixtures(self, commands=None, state=None, transport='cli'):
+        self.run_nvos_commands.side_effect = self.run_cli_patch
+        if state == 'present':
+            self.run_check_cli.return_value = True, False
+        if state == 'absent':
+            self.run_check_cli.return_value = True, True
+
+    def test_vrouter_ospf_add(self):
+        set_module_args({'pn_cliswitch': 'sw01', 'pn_vrouter_name': 'sw01-vrouter',
+                         'pn_network': '105.104.104.1', 'pn_netmask': '24', 'pn_ospf_area': '0', 'state': 'present'})
+        result = self.execute_module(changed=True, state='present')
+        expected_cmd = ' switch sw01 vrouter-ospf-add vrouter-name sw01-vrouter network 105.104.104.1 netmask 24 ospf-area 0'
+        self.assertEqual(result['cli_cmd'], expected_cmd)
+
+    def test_vrouter_ospf_remove(self):
+        set_module_args({'pn_cliswitch': 'sw01', 'pn_vrouter_name': 'sw01-vrouter',
+                         'pn_network': '105.104.104.1', 'state': 'absent'})
+        result = self.execute_module(changed=True, state='absent')
+        expected_cmd = ' switch sw01 vrouter-ospf-remove vrouter-name sw01-vrouter network 105.104.104.1'
+        self.assertEqual(result['cli_cmd'], expected_cmd)