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/iosxr_module.py

@@ -0,0 +1,113 @@
+# (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
+import json
+
+from ansible.compat.tests import unittest
+from ansible.compat.tests.mock import patch
+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 AnsibleExitJson(Exception):
+    pass
+
+class AnsibleFailJson(Exception):
+    pass
+
+class TestIosxrModule(unittest.TestCase):
+
+    def execute_module(self, failed=False, changed=False, commands=None,
+            sort=True, defaults=False):
+
+        self.load_fixtures(commands)
+
+        if failed:
+            result = self.failed()
+            self.assertTrue(result['failed'], result)
+        else:
+            result = self.changed(changed)
+            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'], result['commands'])
+
+        return result
+
+    def failed(self):
+        def fail_json(*args, **kwargs):
+            kwargs['failed'] = True
+            raise AnsibleFailJson(kwargs)
+
+        with patch.object(basic.AnsibleModule, 'fail_json', fail_json):
+            with self.assertRaises(AnsibleFailJson) as exc:
+                self.module.main()
+
+        result = exc.exception.args[0]
+        self.assertTrue(result['failed'], result)
+        return result
+
+    def changed(self, changed=False):
+        def exit_json(*args, **kwargs):
+            if 'changed' not in kwargs:
+                kwargs['changed'] = False
+            raise AnsibleExitJson(kwargs)
+
+        with patch.object(basic.AnsibleModule, 'exit_json', exit_json):
+            with self.assertRaises(AnsibleExitJson) as exc:
+                self.module.main()
+
+        result = exc.exception.args[0]
+        self.assertEqual(result['changed'], changed, result)
+        return result
+
+    def load_fixtures(self, commands=None):
+        pass
+