updates iosxr modules to support socket (#21231)

* updates all iosxr modules to support persistent socket
* adds iosxr action plugin to connect to device
* adds exec_command() to iosxr shared module
* fixes iosxr_config and iosxr_template local action
* update all unit test cases
* adds base test module for iosxr module testing

test/units/modules/network/iosxr/test_iosxr_system.py

@@ -21,44 +21,16 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-import os
 import json
 
-import ansible.module_utils.basic
-
-from ansible.compat.tests import unittest
-from ansible.compat.tests.mock import patch, MagicMock
-from ansible.errors import AnsibleModuleExit
+from ansible.compat.tests.mock import patch
+from .iosxr_module import TestIosxrModule, load_fixture, set_module_args
 from ansible.modules.network.iosxr import iosxr_system
-from ansible.module_utils import basic
-from ansible.module_utils._text import to_bytes
-
-def set_module_args(args):
-    args = json.dumps({'ANSIBLE_MODULE_ARGS': args})
-    basic._ANSIBLE_ARGS = to_bytes(args)
-
-fixture_path = os.path.join(os.path.dirname(__file__), 'fixtures')
-fixture_data = {}
-
-def load_fixture(name):
-    path = os.path.join(fixture_path, name)
-
-    if path in fixture_data:
-        return fixture_data[path]
-
-    with open(path) as f:
-        data = f.read()
-
-    try:
-        data = json.loads(data)
-    except:
-        pass
-
-    fixture_data[path] = data
-    return data
 
 
-class TestIosxrSystemModule(unittest.TestCase):
+class TestIosxrSystemModule(TestIosxrModule):
+
+    module = iosxr_system
 
     def setUp(self):
         self.mock_get_config = patch('ansible.modules.network.iosxr.iosxr_system.get_config')
@@ -71,29 +43,10 @@ class TestIosxrSystemModule(unittest.TestCase):
         self.mock_get_config.stop()
         self.mock_load_config.stop()
 
-    def execute_module(self, failed=False, changed=False, commands=None, sort=True):
-
+    def load_fixtures(self, commands=None):
         self.get_config.return_value = load_fixture('iosxr_system_config.cfg')
         self.load_config.return_value = dict(diff=None, session='session')
 
-        with self.assertRaises(AnsibleModuleExit) as exc:
-            iosxr_system.main()
-
-        result = exc.exception.result
-
-        if failed:
-            self.assertTrue(result['failed'], result)
-        else:
-            self.assertEqual(result['changed'], changed, result)
-
-        if commands:
-            if sort:
-                self.assertEqual(sorted(commands), sorted(result['commands']), result['commands'])
-            else:
-                self.assertEqual(commands, result['commands'])
-
-        return result
-
     def test_iosxr_system_hostname_changed(self):
         set_module_args(dict(hostname='foo'))
         commands = ['hostname foo']