adding scsi unit test case

tests/unit/modules/scsi_test.py

@@ -0,0 +1,63 @@
+# -*- 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 scsi
+import os
+
+
+# Globals
+scsi.__salt__ = {}
+
+
+@skipIf(NO_MOCK, NO_MOCK_REASON)
+class ScsiTestCase(TestCase):
+    '''
+    Test cases for salt.modules.scsi
+    '''
+    def test_ls_(self):
+        '''
+        Test for list SCSI devices, with details
+        '''
+        with patch.dict(scsi.__salt__,
+                        {'cmd.run':
+                         MagicMock(return_value='[A:a B:b C:c D:d]')}):
+            self.assertDictEqual(scsi.ls_(),
+                                 {'[A:a':
+                                  {'major': 'C', 'lun': 'A:a', 'device': 'B:b',
+                                   'model': '', 'minor': 'c', 'size': 'D:d]'}})
+
+    def test_rescan_all(self):
+        '''
+        Test for list scsi devices
+        '''
+        mock = MagicMock(side_effect=[False, True])
+        with patch.object(os.path, 'isdir', mock):
+            self.assertEqual(scsi.rescan_all('host'),
+                             'Host host does not exist')
+
+            with patch.dict(scsi.__salt__,
+                            {'cmd.run': MagicMock(return_value='A')}):
+                self.assertListEqual(scsi.rescan_all('host'), ['A'])
+
+
+if __name__ == '__main__':
+    from integration import run_tests
+    run_tests(ScsiTestCase, needs_daemon=False)