gather_facts action plugin: Fix loading network facts modules for smart gathering (#59856)

* fix smart gathering for network_os in gather_facts action plugin

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

* Fix detection of network_os for smart gathering

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

* Add unittest

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

* make pep8 happy

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

lib/ansible/plugins/action/gather_facts.py

@@ -54,10 +54,10 @@ class ActionModule(ActionBase):
 
         modules = C.config.get_config_value('FACTS_MODULES', variables=task_vars)
         parallel = task_vars.pop('ansible_facts_parallel', self._task.args.pop('parallel', None))
-
         if 'smart' in modules:
             connection_map = C.config.get_config_value('CONNECTION_FACTS_MODULES', variables=task_vars)
-            modules.extend([connection_map.get(self._connection._load_name, 'setup')])
+            network_os = self._task.args.get('network_os', task_vars.get('ansible_network_os', task_vars.get('ansible_facts', {}).get('network_os')))
+            modules.extend([connection_map.get(network_os or self._connection._load_name, 'setup')])
             modules.pop(modules.index('smart'))
 
         failed = {}

test/units/plugins/action/test_gather_facts.py

@@ -0,0 +1,64 @@
+# (c) 2016, Saran Ahluwalia <ahlusar.ahluwalia@gmail.com>
+#
+# 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/>.
+
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from units.compat import unittest
+from units.compat.mock import MagicMock
+
+from ansible import constants as C
+from ansible.plugins.action.gather_facts import ActionModule
+from ansible.playbook.task import Task
+from ansible.template import Templar
+
+from units.mock.loader import DictDataLoader
+
+
+class TestNetworkFacts(unittest.TestCase):
+    task = MagicMock(Task)
+    task_vars = {'ansible_network_os': 'ios'}
+    play_context = MagicMock()
+    play_context.check_mode = False
+    connection = MagicMock()
+    fake_loader = DictDataLoader({
+    })
+    templar = Templar(loader=fake_loader)
+
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        pass
+
+    def test_network_gather_facts(self):
+        self.task.action = 'gather_facts'
+        self.task.async_val = False
+        self.task.args = {'gather_subset': 'min'}
+        self.task.module_defaults = [{'ios_facts': {'gather_subset': 'min'}}]
+
+        plugin = ActionModule(self.task, self.connection, self.play_context, loader=None, templar=self.templar, shared_loader_obj=None)
+        plugin._execute_module = MagicMock()
+
+        res = plugin.run(task_vars=self.task_vars)
+        self.assertEqual(res['ansible_facts']['_ansible_facts_gathered'], True)
+
+        mod_args = plugin._get_module_args('ios_facts', task_vars=self.task_vars)
+        self.assertEqual(mod_args['gather_subset'], 'min')
+
+        facts_modules = C.config.get_config_value('FACTS_MODULES', variables=self.task_vars)
+        self.assertEqual(facts_modules, ['ios_facts'])