Define a module for managing E-Series settings (#41010)

There are multiple settings that are defined at a global level for
E-Series systems, but don't necessarily fit with anything else. This
module is intended to provide a place to encapsulate those.

test/units/modules/storage/netapp/test_netapp_e_global.py

@@ -0,0 +1,76 @@
+# (c) 2018, NetApp Inc.
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+
+from ansible.modules.storage.netapp.netapp_e_global import GlobalSettings
+from units.modules.utils import AnsibleExitJson, AnsibleFailJson, ModuleTestCase, set_module_args
+
+__metaclass__ = type
+from ansible.compat.tests import mock
+
+
+class GlobalSettingsTest(ModuleTestCase):
+    REQUIRED_PARAMS = {
+        'api_username': 'rw',
+        'api_password': 'password',
+        'api_url': 'http://localhost',
+        'ssid': '1',
+    }
+    REQ_FUNC = 'ansible.modules.storage.netapp.netapp_e_global.request'
+
+    def _set_args(self, args=None):
+        module_args = self.REQUIRED_PARAMS.copy()
+        if args is not None:
+            module_args.update(args)
+        set_module_args(module_args)
+
+    def test_set_name(self):
+        """Ensure we can successfully set the name"""
+        self._set_args(dict(name="x"))
+
+        expected = dict(name='y', status='online')
+        namer = GlobalSettings()
+        # Expecting an update
+        with mock.patch(self.REQ_FUNC, return_value=(200, expected)) as req:
+            with mock.patch.object(namer, 'get_name', return_value='y'):
+                update = namer.update_name()
+                self.assertTrue(update)
+        # Expecting no update
+        with mock.patch(self.REQ_FUNC, return_value=(200, expected)) as req:
+            with mock.patch.object(namer, 'get_name', return_value='x'):
+                update = namer.update_name()
+                self.assertFalse(update)
+
+        # Expecting an update, but no actual calls, since we're using check_mode=True
+        namer.check_mode = True
+        with mock.patch(self.REQ_FUNC, return_value=(200, expected)) as req:
+            with mock.patch.object(namer, 'get_name', return_value='y'):
+                update = namer.update_name()
+                self.assertEquals(0, req.called)
+                self.assertTrue(update)
+
+    def test_get_name(self):
+        """Ensure we can successfully set the name"""
+        self._set_args()
+
+        expected = dict(name='y', status='online')
+        namer = GlobalSettings()
+
+        with mock.patch(self.REQ_FUNC, return_value=(200, expected)) as req:
+            name = namer.get_name()
+            self.assertEquals(name, expected['name'])
+
+    def test_get_name_fail(self):
+        """Ensure we can successfully set the name"""
+        self._set_args()
+
+        expected = dict(name='y', status='offline')
+        namer = GlobalSettings()
+
+        with self.assertRaises(AnsibleFailJson):
+            with mock.patch(self.REQ_FUNC, side_effect=Exception()) as req:
+                name = namer.get_name()
+
+        with self.assertRaises(AnsibleFailJson):
+            with mock.patch(self.REQ_FUNC, return_value=(200, expected)) as req:
+                update = namer.update_name()