adding system unit test case

tests/unit/modules/system_test.py

@@ -0,0 +1,75 @@
+# -*- coding: utf-8 -*-
+'''
+    :codeauthor: :email:`Jayesh Kariya <jayeshk@saltstack.com>`
+'''
+# Import Python libs
+from __future__ import absolute_import
+
+# Import Salt Testing Libs
+from salttesting import skipIf, TestCase
+from salttesting.mock import (
+    NO_MOCK,
+    NO_MOCK_REASON,
+    MagicMock,
+    patch)
+
+from salttesting.helpers import ensure_in_syspath
+
+ensure_in_syspath('../../')
+
+# Import Salt Libs
+from salt.modules import system
+
+# Globals
+system.__salt__ = {}
+
+
+@skipIf(NO_MOCK, NO_MOCK_REASON)
+class SystemTestCase(TestCase):
+    '''
+    Test cases for salt.modules.system
+    '''
+    def test_halt(self):
+        '''
+        Test to halt a running system
+        '''
+        with patch.dict(system.__salt__,
+                        {'cmd.run': MagicMock(return_value='A')}):
+            self.assertEqual(system.halt(), 'A')
+
+    def test_init(self):
+        '''
+        Test to change the system runlevel on sysV compatible systems
+        '''
+        with patch.dict(system.__salt__,
+                        {'cmd.run': MagicMock(return_value='A')}):
+            self.assertEqual(system.init('r'), 'A')
+
+    def test_poweroff(self):
+        '''
+        Test to poweroff a running system
+        '''
+        with patch.dict(system.__salt__,
+                        {'cmd.run': MagicMock(return_value='A')}):
+            self.assertEqual(system.poweroff(), 'A')
+
+    def test_reboot(self):
+        '''
+        Test to reboot the system using the 'reboot' command
+        '''
+        with patch.dict(system.__salt__,
+                        {'cmd.run': MagicMock(return_value='A')}):
+            self.assertEqual(system.reboot(), 'A')
+
+    def test_shutdown(self):
+        '''
+        Test to shutdown a running system
+        '''
+        with patch.dict(system.__salt__,
+                        {'cmd.run': MagicMock(return_value='A')}):
+            self.assertEqual(system.shutdown(), 'A')
+
+
+if __name__ == '__main__':
+    from integration import run_tests
+    run_tests(SystemTestCase, needs_daemon=False)