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How to use _fake_execute method in Slash

Best Python code snippet using slash
test_tgt_driver.py
Source:test_tgt_driver.py
...113            return self.iscsi_target_prefix114    def test_iscsi_protocol(self):115        self.assertEqual(self.target.iscsi_protocol, 'iscsi')116    def test_get_target(self):117        def _fake_execute(*args, **kwargs):118            return self.fake_iscsi_scan, None119        self.stubs.Set(utils,120                       'execute',121                       _fake_execute)122        self.assertEqual('1',123                         self.target._get_target('iqn.2010-10.org.openstack:'124                                                 'volume-83c2e877-feed-46be-'125                                                 '8435-77884fe55b45'))126    def test_verify_backing_lun(self):127        def _fake_execute(*args, **kwargs):128            return self.fake_iscsi_scan, None129        self.stubs.Set(utils,130                       'execute',131                       _fake_execute)132        self.assertTrue(self.target._verify_backing_lun(133            'iqn.2010-10.org.openstack:'134            'volume-83c2e877-feed-46be-'135            '8435-77884fe55b45', '1'))136        # Test the failure case137        bad_scan = self.fake_iscsi_scan.replace('LUN: 1', 'LUN: 3')138        def _fake_execute_bad_lun(*args, **kwargs):139            return bad_scan, None140        self.stubs.Set(utils,141                       'execute',142                       _fake_execute_bad_lun)143        self.assertFalse(self.target._verify_backing_lun(144            'iqn.2010-10.org.openstack:'145            'volume-83c2e877-feed-46be-'146            '8435-77884fe55b45', '1'))147    @mock.patch.object(time, 'sleep')148    @mock.patch.object(utils, 'execute')149    def test_recreate_backing_lun(self, mock_execute, mock_sleep):150        test_vol = 'iqn.2010-10.org.openstack:'\151                   'volume-83c2e877-feed-46be-8435-77884fe55b45'152        mock_execute.return_value = ('out', 'err')153        self.target._recreate_backing_lun(test_vol, '1',154                                          self.testvol['name'],155                                          self.testvol_path)156        expected_command = ('tgtadm', '--lld', 'iscsi', '--op', 'new',157                            '--mode', 'logicalunit', '--tid', '1',158                            '--lun', '1', '-b',159                            '/dev/stack-volumes-lvmdriver-1/'160                            'volume-83c2e877-feed-46be-8435-77884fe55b45')161        mock_execute.assert_called_once_with(*expected_command,162                                             run_as_root=True)163        # Test the failure case164        mock_execute.side_effect = putils.ProcessExecutionError165        self.assertFalse(self.target._recreate_backing_lun(166            test_vol,167            '1',168            self.testvol['name'],169            self.testvol_path))170    def test_get_iscsi_target(self):171        ctxt = context.get_admin_context()172        expected = 0173        self.assertEqual(expected,174                         self.target._get_iscsi_target(ctxt,175                                                       self.testvol['id']))176    def test_get_target_and_lun(self):177        lun = 1178        iscsi_target = 0179        ctxt = context.get_admin_context()180        expected = (iscsi_target, lun)181        self.assertEqual(expected,182                         self.target._get_target_and_lun(ctxt, self.testvol))183    def test_get_target_chap_auth(self):184        persist_file =\185            '<target iqn.2010-10.org.openstack:volume-83c2e877-feed-46be-8435-77884fe55b45>\n'\186            '    backing-store /dev/stack-volumes-lvmdriver-1/volume-83c2e877-feed-46be-8435-77884fe55b45\n'\187            '    driver iscsi\n'\188            '    incominguser otzLy2UYbYfnP4zXLG5z 234Zweo38VGBBvrpK9nt\n'\189            '    write-cache on\n'\190            '</target>'191        test_vol =\192            'iqn.2010-10.org.openstack:'\193            'volume-83c2e877-feed-46be-8435-77884fe55b45'194        with open(os.path.join(self.fake_volumes_dir,195                               test_vol.split(':')[1]),196                  'wb') as tmp_file:197            tmp_file.write(persist_file)198        ctxt = context.get_admin_context()199        expected = ('otzLy2UYbYfnP4zXLG5z', '234Zweo38VGBBvrpK9nt')200        self.assertEqual(expected,201                         self.target._get_target_chap_auth(ctxt, test_vol))202    def test_get_target_chap_auth_negative(self):203        test_vol =\204            'iqn.2010-10.org.openstack:'\205            'volume-83c2e877-feed-46be-8435-77884fe55b45'206        with mock.patch('__builtin__.open') as mock_open:207            e = IOError()208            e.errno = 123209            mock_open.side_effect = e210            ctxt = context.get_admin_context()211            self.assertRaises(IOError,212                              self.target._get_target_chap_auth,213                              ctxt, test_vol)214            mock_open.side_effect = StandardError()215            self.assertRaises(StandardError,216                              self.target._get_target_chap_auth,217                              ctxt, test_vol)218    def test_create_iscsi_target(self):219        def _fake_execute(*args, **kwargs):220            return '', ''221        self.stubs.Set(utils,222                       'execute',223                       _fake_execute)224        self.stubs.Set(self.target,225                       '_get_target',226                       lambda x: 1)227        self.stubs.Set(self.target,228                       '_verify_backing_lun',229                       lambda x, y: True)230        test_vol = 'iqn.2010-10.org.openstack:'\231                   'volume-83c2e877-feed-46be-8435-77884fe55b45'232        self.assertEqual(233            1,234            self.target.create_iscsi_target(235                test_vol,236                1,237                0,238                self.fake_volumes_dir))239    def test_create_iscsi_target_already_exists(self):240        def _fake_execute(*args, **kwargs):241            if 'update' in args:242                raise putils.ProcessExecutionError(243                    exit_code=1,244                    stdout='',245                    stderr='target already exists',246                    cmd='tgtad --lld iscsi --op show --mode target')247            else:248                return 'fake out', 'fake err'249        self.stubs.Set(utils,250                       'execute',251                       _fake_execute)252        self.stubs.Set(self.target,253                       '_get_target',254                       lambda x: 1)255        self.stubs.Set(self.target,256                       '_verify_backing_lun',257                       lambda x, y: True)258        test_vol = 'iqn.2010-10.org.openstack:'\259                   'volume-83c2e877-feed-46be-8435-77884fe55b45'260        self.assertEqual(261            1,262            self.target.create_iscsi_target(263                test_vol,264                1,265                0,266                self.fake_volumes_dir))267    @mock.patch('os.path.isfile', return_value=True)268    @mock.patch('os.path.exists', return_value=True)269    @mock.patch.object(utils, 'execute')270    @mock.patch('os.unlink', return_value=None)271    def test_delete_target_not_found(self,272                                     mock_unlink,273                                     mock_exec,274                                     mock_pathexists,275                                     mock_isfile):276        def _fake_execute(*args, **kwargs):277            raise putils.ProcessExecutionError(278                exit_code=1,279                stdout='',280                stderr='can\'t find the target',281                cmd='tgt-admin --force --delete')282        def _fake_execute_wrong_message(*args, **kwargs):283            raise putils.ProcessExecutionError(284                exit_code=1,285                stdout='',286                stderr='this isnt the error your looking for',287                cmd='tgt-admin --force --delete')288        mock_exec.side_effect = _fake_execute289        test_vol_id = '83c2e877-feed-46be-8435-77884fe55b45'290        test_vol_name = 'volume-83c2e877-feed-46be-8435-77884fe55b45'291        with mock.patch.object(self.target, '_get_target', return_value=False):292            self.assertEqual(293                None,294                self.target.remove_iscsi_target(295                    1,296                    0,297                    test_vol_id,298                    test_vol_name))299            mock_exec.side_effect = _fake_execute_wrong_message300            self.assertRaises(exception.ISCSITargetRemoveFailed,301                              self.target.remove_iscsi_target,302                              1,303                              0,304                              test_vol_id,305                              test_vol_name)306    @mock.patch('os.path.isfile', return_value=True)307    @mock.patch('os.path.exists', return_value=True)308    @mock.patch.object(utils, 'execute')309    @mock.patch('os.unlink', return_value=None)310    def test_delete_target_acl_not_found(self,311                                         mock_unlink,312                                         mock_exec,313                                         mock_pathexists,314                                         mock_isfile):315        def _fake_execute(*args, **kwargs):316            raise putils.ProcessExecutionError(317                exit_code=1,318                stdout='',319                stderr='this access control rule does not exist',320                cmd='tgt-admin --force --delete')321        def _fake_execute_wrong_message(*args, **kwargs):322            raise putils.ProcessExecutionError(323                exit_code=1,324                stdout='',325                stderr='this isnt the error your looking for',326                cmd='tgt-admin --force --delete')327        mock_exec.side_effect = _fake_execute328        test_vol_id = '83c2e877-feed-46be-8435-77884fe55b45'329        test_vol_name = 'volume-83c2e877-feed-46be-8435-77884fe55b45'330        with mock.patch.object(self.target, '_get_target', return_value=False):331            self.assertEqual(332                None,333                self.target.remove_iscsi_target(334                    1,335                    0,336                    test_vol_id,337                    test_vol_name))338            mock_exec.side_effect = _fake_execute_wrong_message339            self.assertRaises(exception.ISCSITargetRemoveFailed,340                              self.target.remove_iscsi_target,341                              1,342                              0,343                              test_vol_id,344                              test_vol_name)345    @mock.patch.object(tgt.TgtAdm, '_get_iscsi_properties')346    def test_initialize_connection(self, mock_get_iscsi):347        connector = {'initiator': 'fake_init'}348        # Test the normal case349        mock_get_iscsi.return_value = 'foo bar'350        expected_return = {'driver_volume_type': 'iscsi',351                           'data': 'foo bar'}352        self.assertEqual(expected_return,353                         self.target.initialize_connection(self.testvol,354                                                           connector))355    @mock.patch.object(utils, 'execute')356    @mock.patch.object(tgt.TgtAdm, '_get_target')357    @mock.patch.object(os.path, 'exists')358    @mock.patch.object(os.path, 'isfile')359    @mock.patch.object(os, 'unlink')360    def test_remove_iscsi_target(self,361                                 mock_unlink,362                                 mock_isfile,363                                 mock_path_exists,364                                 mock_get_target,365                                 mock_execute):366        test_vol = 'iqn.2010-10.org.openstack:'\367                   'volume-83c2e877-feed-46be-8435-77884fe55b45'368        # Test the failure case: path does not exist369        mock_path_exists.return_value = None370        self.assertEqual(None,371                         self.target.remove_iscsi_target(372                             0,373                             1,374                             self.testvol['id'],375                             self.testvol['name']))376        # Test the normal case377        mock_path_exists.return_value = True378        mock_isfile.return_value = True379        self.target.remove_iscsi_target(0,380                                        1,381                                        self.testvol['id'],382                                        self.testvol['name'])383        calls = [mock.call('tgt-admin', '--force', '--delete', test_vol,384                           run_as_root=True),385                 mock.call('tgt-admin', '--delete', test_vol,386                           run_as_root=True)]387        mock_execute.assert_has_calls(calls)388    def test_create_export(self):389        def _fake_execute(*args, **kwargs):390            return '', ''391        self.stubs.Set(utils,392                       'execute',393                       _fake_execute)394        self.stubs.Set(self.target,395                       '_get_target',396                       lambda x: 1)397        self.stubs.Set(self.target,398                       '_verify_backing_lun',399                       lambda x, y: True)400        self.stubs.Set(self.target,401                       '_get_target_chap_auth',402                       lambda x, y: None)403        self.stubs.Set(vutils,...
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