Pluribus Networks port cos bw module (#50287)

* Pluribus Networks port cos bw module

* Indentation fix

* Documentation fix

* Corrected indetentation for required_one_of

* Added maintainer name in BOTMETA.yml

* Removed maintainer name in BOTMETA.yml as my team is already there

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

@@ -0,0 +1,49 @@
+# 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_port_cos_bw
+from units.modules.utils import set_module_args
+from .nvos_module import TestNvosModule, load_fixture
+
+
+class TestAdminServiceModule(TestNvosModule):
+
+    module = pn_port_cos_bw
+
+    def setUp(self):
+        self.mock_run_nvos_commands = patch('ansible.modules.network.netvisor.pn_port_cos_bw.run_cli')
+        self.run_nvos_commands = self.mock_run_nvos_commands.start()
+
+    def tearDown(self):
+        self.mock_run_nvos_commands.stop()
+
+    def run_cli_patch(self, module, cli, state_map):
+        if state_map['update'] == 'port-cos-bw-modify':
+            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
+
+    def test_pn_port_cos_bw_modify_t1(self):
+        set_module_args({'pn_cliswitch': 'sw01', 'pn_port': '1',
+                         'pn_cos': '0', 'pn_min_bw_guarantee': '60', 'state': 'update'})
+        result = self.execute_module(changed=True, state='update')
+        expected_cmd = '/usr/bin/cli --quiet -e --no-login-prompt  switch sw01 port-cos-bw-modify  cos 0 port 1 min-bw-guarantee 60'
+        self.assertEqual(result['cli_cmd'], expected_cmd)
+
+    def test_pn_port_cos_bw_modify_t2(self):
+        set_module_args({'pn_cliswitch': 'sw01', 'pn_port': 'all',
+                         'pn_cos': '1', 'pn_weight': 'priority', 'state': 'update'})
+        result = self.execute_module(changed=True, state='update')
+        expected_cmd = '/usr/bin/cli --quiet -e --no-login-prompt  switch sw01 port-cos-bw-modify  cos 1 port all weight priority'
+        self.assertEqual(result['cli_cmd'], expected_cmd)