Merge "Define Runner class"

2 files changed, 300 insertions, 275 deletions

diff --git a/functest/ci/run_tests.py b/functest/ci/run_tests.py
index 76760096b..f973b616c 100755
--- a/functest/ci/run_tests.py
+++ b/functest/ci/run_tests.py
@@ -64,210 +64,209 @@ class RunTestsParser(object):
         return vars(self.parser.parse_args(argv))
 
 
-class GlobalVariables:
-    EXECUTED_TEST_CASES = []
-    OVERALL_RESULT = Result.EX_OK
-    CLEAN_FLAG = True
-    REPORT_FLAG = False
-
-
-def print_separator(str, count=45):
-    line = ""
-    for i in range(0, count - 1):
-        line += str
-    logger.info("%s" % line)
-
-
-def source_rc_file():
-    rc_file = CONST.__getattribute__('openstack_creds')
-    if not os.path.isfile(rc_file):
-        raise Exception("RC file %s does not exist..." % rc_file)
-    logger.debug("Sourcing the OpenStack RC file...")
-    os_utils.source_credentials(rc_file)
-    for key, value in os.environ.iteritems():
-        if re.search("OS_", key):
-            if key == 'OS_AUTH_URL':
-                CONST.__setattr__('OS_AUTH_URL', value)
-            elif key == 'OS_USERNAME':
-                CONST.__setattr__('OS_USERNAME', value)
-            elif key == 'OS_TENANT_NAME':
-                CONST.__setattr__('OS_TENANT_NAME', value)
-            elif key == 'OS_PASSWORD':
-                CONST.__setattr__('OS_PASSWORD', value)
-
-
-def generate_os_snapshot():
-    os_snapshot.main()
-
-
-def cleanup():
-    os_clean.main()
-
-
-def get_run_dict(testname):
-    try:
-        dict = ft_utils.get_dict_by_test(testname)
-        if not dict:
-            logger.error("Cannot get {}'s config options".format(testname))
-        elif 'run' in dict:
-            return dict['run']
-        return None
-    except Exception:
-        logger.exception("Cannot get {}'s config options".format(testname))
-        return None
-
-
-def run_test(test, tier_name, testcases=None):
-    if not test.is_enabled():
-        raise TestNotEnabled("The test case {} is not enabled"
-                             .format(test.get_name()))
-    test_name = test.get_name()
-    logger.info("\n")  # blank line
-    print_separator("=")
-    logger.info("Running test case '%s'..." % test_name)
-    print_separator("=")
-    logger.debug("\n%s" % test)
-    source_rc_file()
-
-    if test.needs_clean() and GlobalVariables.CLEAN_FLAG:
-        generate_os_snapshot()
-
-    flags = (" -t %s" % (test_name))
-    if GlobalVariables.REPORT_FLAG:
-        flags += " -r"
-
-    result = testcase.TestCase.EX_RUN_ERROR
-    run_dict = get_run_dict(test_name)
-    if run_dict:
+class Runner(object):
+
+    def __init__(self):
+        self.executed_test_cases = []
+        self.overall_result = Result.EX_OK
+        self.clean_flag = True
+        self.report_flag = False
+
+    @staticmethod
+    def print_separator(str, count=45):
+        line = ""
+        for i in range(0, count - 1):
+            line += str
+        logger.info("%s" % line)
+
+    @staticmethod
+    def source_rc_file():
+        rc_file = CONST.__getattribute__('openstack_creds')
+        if not os.path.isfile(rc_file):
+            raise Exception("RC file %s does not exist..." % rc_file)
+        logger.debug("Sourcing the OpenStack RC file...")
+        os_utils.source_credentials(rc_file)
+        for key, value in os.environ.iteritems():
+            if re.search("OS_", key):
+                if key == 'OS_AUTH_URL':
+                    CONST.__setattr__('OS_AUTH_URL', value)
+                elif key == 'OS_USERNAME':
+                    CONST.__setattr__('OS_USERNAME', value)
+                elif key == 'OS_TENANT_NAME':
+                    CONST.__setattr__('OS_TENANT_NAME', value)
+                elif key == 'OS_PASSWORD':
+                    CONST.__setattr__('OS_PASSWORD', value)
+
+    @staticmethod
+    def generate_os_snapshot():
+        os_snapshot.main()
+
+    @staticmethod
+    def cleanup():
+        os_clean.main()
+
+    @staticmethod
+    def get_run_dict(testname):
         try:
-            module = importlib.import_module(run_dict['module'])
-            cls = getattr(module, run_dict['class'])
-            test_dict = ft_utils.get_dict_by_test(test_name)
-            test_case = cls(**test_dict)
-            GlobalVariables.EXECUTED_TEST_CASES.append(test_case)
+            dict = ft_utils.get_dict_by_test(testname)
+            if not dict:
+                logger.error("Cannot get {}'s config options".format(testname))
+            elif 'run' in dict:
+                return dict['run']
+            return None
+        except Exception:
+            logger.exception("Cannot get {}'s config options".format(testname))
+            return None
+
+    def run_test(self, test, tier_name, testcases=None):
+        if not test.is_enabled():
+            raise TestNotEnabled(
+                "The test case {} is not enabled".format(test.get_name()))
+        test_name = test.get_name()
+        logger.info("\n")  # blank line
+        self.print_separator("=")
+        logger.info("Running test case '%s'..." % test_name)
+        self.print_separator("=")
+        logger.debug("\n%s" % test)
+        self.source_rc_file()
+
+        if test.needs_clean() and self.clean_flag:
+            self.generate_os_snapshot()
+
+        flags = (" -t %s" % (test_name))
+        if self.report_flag:
+            flags += " -r"
+
+        result = testcase.TestCase.EX_RUN_ERROR
+        run_dict = self.get_run_dict(test_name)
+        if run_dict:
             try:
-                kwargs = run_dict['args']
-                result = test_case.run(**kwargs)
-            except KeyError:
-                result = test_case.run()
-            if result == testcase.TestCase.EX_OK:
-                if GlobalVariables.REPORT_FLAG:
-                    test_case.push_to_db()
-                result = test_case.is_successful()
-            logger.info("Test result:\n\n%s\n", test_case)
-        except ImportError:
-            logger.exception("Cannot import module {}".format(
-                run_dict['module']))
-        except AttributeError:
-            logger.exception("Cannot get class {}".format(
-                run_dict['class']))
-    else:
-        raise Exception("Cannot import the class for the test case.")
-
-    if test.needs_clean() and GlobalVariables.CLEAN_FLAG:
-        cleanup()
-    if result != testcase.TestCase.EX_OK:
-        logger.error("The test case '%s' failed. " % test_name)
-        GlobalVariables.OVERALL_RESULT = Result.EX_ERROR
-        if test.is_blocking():
-            raise BlockingTestFailed("The test case {} failed and is blocking"
-                                     .format(test.get_name()))
-
-
-def run_tier(tier):
-    tier_name = tier.get_name()
-    tests = tier.get_tests()
-    if tests is None or len(tests) == 0:
-        logger.info("There are no supported test cases in this tier "
-                    "for the given scenario")
-        return 0
-    logger.info("\n\n")  # blank line
-    print_separator("#")
-    logger.info("Running tier '%s'" % tier_name)
-    print_separator("#")
-    logger.debug("\n%s" % tier)
-    for test in tests:
-        run_test(test, tier_name)
-
-
-def run_all(tiers):
-    summary = ""
-    tiers_to_run = []
-
-    for tier in tiers.get_tiers():
-        if (len(tier.get_tests()) != 0 and
-                re.search(CONST.__getattribute__('CI_LOOP'),
-                          tier.get_ci_loop()) is not None):
-            tiers_to_run.append(tier)
-            summary += ("\n    - %s:\n\t   %s"
-                        % (tier.get_name(),
-                           tier.get_test_names()))
-
-    logger.info("Tests to be executed:%s" % summary)
-    for tier in tiers_to_run:
-        run_tier(tier)
-
-
-def main(**kwargs):
-
-    file = CONST.functest_testcases_yaml
-    _tiers = tb.TierBuilder(CONST.__getattribute__('INSTALLER_TYPE'),
-                            CONST.__getattribute__('DEPLOY_SCENARIO'),
-                            file)
-
-    if kwargs['noclean']:
-        GlobalVariables.CLEAN_FLAG = False
-
-    if kwargs['report']:
-        GlobalVariables.REPORT_FLAG = True
-
-    try:
-        if kwargs['test']:
-            source_rc_file()
-            if _tiers.get_tier(kwargs['test']):
-                run_tier(_tiers.get_tier(kwargs['test']))
-            elif _tiers.get_test(kwargs['test']):
-                run_test(_tiers.get_test(kwargs['test']),
-                         _tiers.get_tier_name(kwargs['test']),
-                         kwargs['test'])
-            elif kwargs['test'] == "all":
-                run_all(_tiers)
-            else:
-                logger.error("Unknown test case or tier '%s', "
-                             "or not supported by "
-                             "the given scenario '%s'."
-                             % (kwargs['test'],
-                                CONST.__getattribute__('DEPLOY_SCENARIO')))
-                logger.debug("Available tiers are:\n\n%s"
-                             % _tiers)
-                return Result.EX_ERROR
+                module = importlib.import_module(run_dict['module'])
+                cls = getattr(module, run_dict['class'])
+                test_dict = ft_utils.get_dict_by_test(test_name)
+                test_case = cls(**test_dict)
+                self.executed_test_cases.append(test_case)
+                try:
+                    kwargs = run_dict['args']
+                    result = test_case.run(**kwargs)
+                except KeyError:
+                    result = test_case.run()
+                if result == testcase.TestCase.EX_OK:
+                    if self.report_flag:
+                        test_case.push_to_db()
+                    result = test_case.is_successful()
+                logger.info("Test result:\n\n%s\n", test_case)
+            except ImportError:
+                logger.exception("Cannot import module {}".format(
+                    run_dict['module']))
+            except AttributeError:
+                logger.exception("Cannot get class {}".format(
+                    run_dict['class']))
         else:
-            run_all(_tiers)
-    except Exception as e:
-        logger.error(e)
-        GlobalVariables.OVERALL_RESULT = Result.EX_ERROR
-
-    msg = prettytable.PrettyTable(
-        header_style='upper', padding_width=5,
-        field_names=['env var', 'value'])
-    for env_var in ['INSTALLER_TYPE', 'DEPLOY_SCENARIO', 'BUILD_TAG',
-                    'CI_LOOP']:
-        msg.add_row([env_var, CONST.__getattribute__(env_var)])
-    logger.info("Deployment description: \n\n%s\n", msg)
-
-    msg = prettytable.PrettyTable(
-        header_style='upper', padding_width=5,
-        field_names=['test case', 'project', 'tier', 'duration', 'result'])
-    for test_case in GlobalVariables.EXECUTED_TEST_CASES:
-        result = 'PASS' if(test_case.is_successful(
-                ) == test_case.EX_OK) else 'FAIL'
-        msg.add_row([test_case.case_name, test_case.project_name,
-                     _tiers.get_tier_name(test_case.case_name),
-                     test_case.get_duration(), result])
-    logger.info("FUNCTEST REPORT: \n\n%s\n", msg)
-
-    logger.info("Execution exit value: %s" % GlobalVariables.OVERALL_RESULT)
-    return GlobalVariables.OVERALL_RESULT
+            raise Exception("Cannot import the class for the test case.")
+
+        if test.needs_clean() and self.clean_flag:
+            self.cleanup()
+        if result != testcase.TestCase.EX_OK:
+            logger.error("The test case '%s' failed. " % test_name)
+            self.overall_result = Result.EX_ERROR
+            if test.is_blocking():
+                raise BlockingTestFailed(
+                    "The test case {} failed and is blocking".format(
+                        test.get_name()))
+
+    def run_tier(self, tier):
+        tier_name = tier.get_name()
+        tests = tier.get_tests()
+        if tests is None or len(tests) == 0:
+            logger.info("There are no supported test cases in this tier "
+                        "for the given scenario")
+            return 0
+        logger.info("\n\n")  # blank line
+        self.print_separator("#")
+        logger.info("Running tier '%s'" % tier_name)
+        self.print_separator("#")
+        logger.debug("\n%s" % tier)
+        for test in tests:
+            self.run_test(test, tier_name)
+
+    def run_all(self, tiers):
+        summary = ""
+        tiers_to_run = []
+
+        for tier in tiers.get_tiers():
+            if (len(tier.get_tests()) != 0 and
+                    re.search(CONST.__getattribute__('CI_LOOP'),
+                              tier.get_ci_loop()) is not None):
+                tiers_to_run.append(tier)
+                summary += ("\n    - %s:\n\t   %s"
+                            % (tier.get_name(),
+                               tier.get_test_names()))
+
+        logger.info("Tests to be executed:%s" % summary)
+        for tier in tiers_to_run:
+            self.run_tier(tier)
+
+    def main(self, **kwargs):
+        _tiers = tb.TierBuilder(
+            CONST.__getattribute__('INSTALLER_TYPE'),
+            CONST.__getattribute__('DEPLOY_SCENARIO'),
+            CONST.__getattribute__("functest_testcases_yaml"))
+
+        if kwargs['noclean']:
+            self.clean_flag = False
+
+        if kwargs['report']:
+            self.report_flag = True
+
+        try:
+            if kwargs['test']:
+                self.source_rc_file()
+                logger.error(kwargs['test'])
+                if _tiers.get_tier(kwargs['test']):
+                    self.run_tier(_tiers.get_tier(kwargs['test']))
+                elif _tiers.get_test(kwargs['test']):
+                    self.run_test(_tiers.get_test(kwargs['test']),
+                                  _tiers.get_tier_name(kwargs['test']),
+                                  kwargs['test'])
+                elif kwargs['test'] == "all":
+                    self.run_all(_tiers)
+                else:
+                    logger.error("Unknown test case or tier '%s', "
+                                 "or not supported by "
+                                 "the given scenario '%s'."
+                                 % (kwargs['test'],
+                                    CONST.__getattribute__('DEPLOY_SCENARIO')))
+                    logger.debug("Available tiers are:\n\n%s",
+                                 _tiers)
+                    return Result.EX_ERROR
+            else:
+                self.run_all(_tiers)
+        except Exception:
+            logger.exception("Runner failed")
+            self.overall_result = Result.EX_ERROR
+
+        msg = prettytable.PrettyTable(
+            header_style='upper', padding_width=5,
+            field_names=['env var', 'value'])
+        for env_var in ['INSTALLER_TYPE', 'DEPLOY_SCENARIO', 'BUILD_TAG',
+                        'CI_LOOP']:
+            msg.add_row([env_var, CONST.__getattribute__(env_var)])
+        logger.info("Deployment description: \n\n%s\n", msg)
+
+        msg = prettytable.PrettyTable(
+            header_style='upper', padding_width=5,
+            field_names=['test case', 'project', 'tier', 'duration', 'result'])
+        for test_case in self.executed_test_cases:
+            result = 'PASS' if(test_case.is_successful(
+                    ) == test_case.EX_OK) else 'FAIL'
+            msg.add_row([test_case.case_name, test_case.project_name,
+                         _tiers.get_tier_name(test_case.case_name),
+                         test_case.get_duration(), result])
+        logger.info("FUNCTEST REPORT: \n\n%s\n", msg)
+
+        logger.info("Execution exit value: %s" % self.overall_result)
+        return self.overall_result
 
 
 if __name__ == '__main__':
@@ -275,4 +274,5 @@ if __name__ == '__main__':
         CONST.__getattribute__('dir_functest_logging_cfg'))
     parser = RunTestsParser()
     args = parser.parse_args(sys.argv[1:])
-    sys.exit(main(**args).value)
+    runner = Runner()
+    sys.exit(runner.main(**args).value)
diff --git a/functest/tests/unit/ci/test_run_tests.py b/functest/tests/unit/ci/test_run_tests.py
index d48c79cc8..88e5d2b86 100644
--- a/functest/tests/unit/ci/test_run_tests.py
+++ b/functest/tests/unit/ci/test_run_tests.py
@@ -5,19 +5,32 @@
 # which accompanies this distribution, and is available at
 # http://www.apache.org/licenses/LICENSE-2.0
 
-
-import unittest
 import logging
+import unittest
 
 import mock
 
 from functest.ci import run_tests
 from functest.utils.constants import CONST
+from functest.core.testcase import TestCase
+
+
+class FakeModule(TestCase):
+
+    def run(self):
+        return TestCase.EX_OK
+
+    def push_to_db(self):
+        return TestCase.EX_OK
+
+    def is_successful(self):
+        return TestCase.EX_OK
 
 
 class RunTestsTesting(unittest.TestCase):
 
     def setUp(self):
+        self.runner = run_tests.Runner()
         self.sep = 'test_sep'
         self.creds = {'OS_AUTH_URL': 'http://test_ip:test_port/v2.0',
                       'OS_USERNAME': 'test_os_username',
@@ -36,11 +49,10 @@ class RunTestsTesting(unittest.TestCase):
         self.tiers.configure_mock(**attrs)
 
         self.run_tests_parser = run_tests.RunTestsParser()
-        self.global_variables = run_tests.GlobalVariables()
 
     @mock.patch('functest.ci.run_tests.logger.info')
     def test_print_separator(self, mock_logger_info):
-        run_tests.print_separator(self.sep)
+        self.runner.print_separator(self.sep)
         mock_logger_info.assert_called_once_with(self.sep * 44)
 
     @mock.patch('functest.ci.run_tests.logger.error')
@@ -48,24 +60,24 @@ class RunTestsTesting(unittest.TestCase):
         with mock.patch('functest.ci.run_tests.os.path.isfile',
                         return_value=False), \
                 self.assertRaises(Exception):
-            run_tests.source_rc_file()
+            self.runner.source_rc_file()
 
     @mock.patch('functest.ci.run_tests.logger.debug')
-    def test_source_rc_file_default(self, mock_logger_debug):
-        with mock.patch('functest.ci.run_tests.os.path.isfile',
-                        return_value=True), \
-            mock.patch('functest.ci.run_tests.os_utils.source_credentials',
-                       return_value=self.creds):
-            run_tests.source_rc_file()
+    @mock.patch('functest.ci.run_tests.os.path.isfile',
+                return_value=True)
+    def test_source_rc_file_default(self, *args):
+        with mock.patch('functest.ci.run_tests.os_utils.source_credentials',
+                        return_value=self.creds):
+            self.runner.source_rc_file()
 
     @mock.patch('functest.ci.run_tests.os_snapshot.main')
     def test_generate_os_snapshot(self, mock_os_snap):
-        run_tests.generate_os_snapshot()
+        self.runner.generate_os_snapshot()
         self.assertTrue(mock_os_snap.called)
 
     @mock.patch('functest.ci.run_tests.os_clean.main')
     def test_cleanup(self, mock_os_clean):
-        run_tests.cleanup()
+        self.runner.cleanup()
         self.assertTrue(mock_os_clean.called)
 
     def test_get_run_dict_if_defined_default(self):
@@ -73,7 +85,7 @@ class RunTestsTesting(unittest.TestCase):
         with mock.patch('functest.ci.run_tests.'
                         'ft_utils.get_dict_by_test',
                         return_value={'run': mock_obj}):
-            self.assertEqual(run_tests.get_run_dict('test_name'),
+            self.assertEqual(self.runner.get_run_dict('test_name'),
                              mock_obj)
 
     @mock.patch('functest.ci.run_tests.logger.error')
@@ -83,7 +95,7 @@ class RunTestsTesting(unittest.TestCase):
                         'ft_utils.get_dict_by_test',
                         return_value=None):
             testname = 'test_name'
-            self.assertEqual(run_tests.get_run_dict(testname),
+            self.assertEqual(self.runner.get_run_dict(testname),
                              None)
             mock_logger_error.assert_called_once_with("Cannot get {}'s config "
                                                       "options"
@@ -93,7 +105,7 @@ class RunTestsTesting(unittest.TestCase):
                         'ft_utils.get_dict_by_test',
                         return_value={}):
             testname = 'test_name'
-            self.assertEqual(run_tests.get_run_dict(testname),
+            self.assertEqual(self.runner.get_run_dict(testname),
                              None)
 
     @mock.patch('functest.ci.run_tests.logger.exception')
@@ -103,7 +115,7 @@ class RunTestsTesting(unittest.TestCase):
                         'ft_utils.get_dict_by_test',
                         side_effect=Exception):
             testname = 'test_name'
-            self.assertEqual(run_tests.get_run_dict(testname),
+            self.assertEqual(self.runner.get_run_dict(testname),
                              None)
             mock_logger_except.assert_called_once_with("Cannot get {}'s config"
                                                        " options"
@@ -114,63 +126,67 @@ class RunTestsTesting(unittest.TestCase):
         args = {'get_name.return_value': 'test_name',
                 'needs_clean.return_value': False}
         mock_test.configure_mock(**args)
-        with mock.patch('functest.ci.run_tests.print_separator'),\
-            mock.patch('functest.ci.run_tests.source_rc_file'), \
-            mock.patch('functest.ci.run_tests.get_run_dict',
+        with mock.patch('functest.ci.run_tests.Runner.print_separator'),\
+            mock.patch('functest.ci.run_tests.Runner.source_rc_file'), \
+            mock.patch('functest.ci.run_tests.Runner.get_run_dict',
                        return_value=None), \
                 self.assertRaises(Exception) as context:
-            run_tests.run_test(mock_test, 'tier_name')
+            self.runner(mock_test, 'tier_name')
             msg = "Cannot import the class for the test case."
             self.assertTrue(msg in context)
 
-    def test_run_tests_default(self):
+    @mock.patch('functest.ci.run_tests.Runner.print_separator')
+    @mock.patch('functest.ci.run_tests.Runner.source_rc_file')
+    @mock.patch('functest.ci.run_tests.Runner.generate_os_snapshot')
+    @mock.patch('functest.ci.run_tests.Runner.cleanup')
+    @mock.patch('importlib.import_module', name="module",
+                return_value=mock.Mock(test_class=mock.Mock(
+                    side_effect=FakeModule)))
+    @mock.patch('functest.utils.functest_utils.get_dict_by_test')
+    def test_run_tests_default(self, *args):
         mock_test = mock.Mock()
-        args = {'get_name.return_value': 'test_name',
-                'needs_clean.return_value': True}
-        mock_test.configure_mock(**args)
+        kwargs = {'get_name.return_value': 'test_name',
+                  'needs_clean.return_value': True}
+        mock_test.configure_mock(**kwargs)
         test_run_dict = {'module': 'test_module',
-                         'class': mock.Mock,
-                         'args': 'test_args'}
-        with mock.patch('functest.ci.run_tests.print_separator'),\
-            mock.patch('functest.ci.run_tests.source_rc_file'), \
-            mock.patch('functest.ci.run_tests.generate_os_snapshot'), \
-            mock.patch('functest.ci.run_tests.cleanup'), \
-            mock.patch('functest.ci.run_tests.get_run_dict',
-                       return_value=test_run_dict), \
-                self.assertRaises(run_tests.BlockingTestFailed) as context:
-            run_tests.GlobalVariables.CLEAN_FLAG = True
-            run_tests.run_test(mock_test, 'tier_name')
-            msg = 'The test case test_name failed and is blocking'
-            self.assertTrue(msg in context)
+                         'class': 'test_class'}
+        with mock.patch('functest.ci.run_tests.Runner.get_run_dict',
+                        return_value=test_run_dict):
+            self.runner.clean_flag = True
+            self.runner.run_test(mock_test, 'tier_name')
+        self.assertEqual(self.runner.overall_result,
+                         run_tests.Result.EX_OK)
 
     @mock.patch('functest.ci.run_tests.logger.info')
     def test_run_tier_default(self, mock_logger_info):
-        with mock.patch('functest.ci.run_tests.print_separator'), \
-                mock.patch('functest.ci.run_tests.run_test') as mock_method:
-            run_tests.run_tier(self.tier)
+        with mock.patch('functest.ci.run_tests.Runner.print_separator'), \
+                mock.patch(
+                    'functest.ci.run_tests.Runner.run_test') as mock_method:
+            self.runner.run_tier(self.tier)
             mock_method.assert_any_call('test1', 'test_tier')
             mock_method.assert_any_call('test2', 'test_tier')
             self.assertTrue(mock_logger_info.called)
 
     @mock.patch('functest.ci.run_tests.logger.info')
     def test_run_tier_missing_test(self, mock_logger_info):
-        with mock.patch('functest.ci.run_tests.print_separator'):
+        with mock.patch('functest.ci.run_tests.Runner.print_separator'):
             self.tier.get_tests.return_value = None
-            self.assertEqual(run_tests.run_tier(self.tier), 0)
+            self.assertEqual(self.runner.run_tier(self.tier), 0)
             self.assertTrue(mock_logger_info.called)
 
     @mock.patch('functest.ci.run_tests.logger.info')
     def test_run_all_default(self, mock_logger_info):
-        with mock.patch('functest.ci.run_tests.run_tier') as mock_method:
+        with mock.patch(
+                'functest.ci.run_tests.Runner.run_tier') as mock_method:
             CONST.__setattr__('CI_LOOP', 'test_ci_loop')
-            run_tests.run_all(self.tiers)
+            self.runner.run_all(self.tiers)
             mock_method.assert_any_call(self.tier)
             self.assertTrue(mock_logger_info.called)
 
     @mock.patch('functest.ci.run_tests.logger.info')
     def test_run_all_missing_tier(self, mock_logger_info):
         CONST.__setattr__('CI_LOOP', 'loop_re_not_available')
-        run_tests.run_all(self.tiers)
+        self.runner.run_all(self.tiers)
         self.assertTrue(mock_logger_info.called)
 
     def test_main_failed(self):
@@ -179,69 +195,78 @@ class RunTestsTesting(unittest.TestCase):
         args = {'get_tier.return_value': False,
                 'get_test.return_value': False}
         mock_obj.configure_mock(**args)
-
         with mock.patch('functest.ci.run_tests.tb.TierBuilder'), \
-            mock.patch('functest.ci.run_tests.source_rc_file',
+            mock.patch('functest.ci.run_tests.Runner.source_rc_file',
                        side_effect=Exception):
-            self.assertEqual(run_tests.main(**kwargs),
+            self.assertEqual(self.runner.main(**kwargs),
                              run_tests.Result.EX_ERROR)
-
         with mock.patch('functest.ci.run_tests.tb.TierBuilder',
                         return_value=mock_obj), \
-            mock.patch('functest.ci.run_tests.source_rc_file',
+            mock.patch('functest.ci.run_tests.Runner.source_rc_file',
                        side_effect=Exception):
-            self.assertEqual(run_tests.main(**kwargs),
+            self.assertEqual(self.runner.main(**kwargs),
                              run_tests.Result.EX_ERROR)
 
-    def test_main_default(self):
-        kwargs = {'test': 'test_name', 'noclean': True, 'report': True}
+    def test_main_tier(self, *args):
+        mock_tier = mock.Mock()
+        args = {'get_name.return_value': 'tier_name'}
+        mock_tier.configure_mock(**args)
+        kwargs = {'test': 'tier_name', 'noclean': True, 'report': True}
         mock_obj = mock.Mock()
-        args = {'get_tier.return_value': True,
-                'get_test.return_value': False}
+        args = {'get_tier.return_value': mock_tier,
+                'get_test.return_value': None}
         mock_obj.configure_mock(**args)
         with mock.patch('functest.ci.run_tests.tb.TierBuilder',
                         return_value=mock_obj), \
-            mock.patch('functest.ci.run_tests.source_rc_file'), \
-                mock.patch('functest.ci.run_tests.run_tier') as m:
-            self.assertEqual(run_tests.main(**kwargs),
+            mock.patch('functest.ci.run_tests.Runner.source_rc_file'), \
+                mock.patch('functest.ci.run_tests.Runner.run_tier') as m:
+            self.assertEqual(self.runner.main(**kwargs),
                              run_tests.Result.EX_OK)
             self.assertTrue(m.called)
 
+    def test_main_test(self, *args):
+        kwargs = {'test': 'test_name', 'noclean': True, 'report': True}
+        mock_test = mock.Mock()
+        args = {'get_name.return_value': 'test_name',
+                'needs_clean.return_value': True}
+        mock_test.configure_mock(**args)
         mock_obj = mock.Mock()
-        args = {'get_tier.return_value': False,
-                'get_test.return_value': True}
+        args = {'get_tier.return_value': None,
+                'get_test.return_value': mock_test}
         mock_obj.configure_mock(**args)
         with mock.patch('functest.ci.run_tests.tb.TierBuilder',
                         return_value=mock_obj), \
-            mock.patch('functest.ci.run_tests.source_rc_file'), \
-                mock.patch('functest.ci.run_tests.run_test') as m:
-            self.assertEqual(run_tests.main(**kwargs),
+            mock.patch('functest.ci.run_tests.Runner.source_rc_file'), \
+                mock.patch('functest.ci.run_tests.Runner.run_test') as m:
+            self.assertEqual(self.runner.main(**kwargs),
                              run_tests.Result.EX_OK)
             self.assertTrue(m.called)
 
+    def test_main_all_tier(self, *args):
         kwargs = {'test': 'all', 'noclean': True, 'report': True}
         mock_obj = mock.Mock()
-        args = {'get_tier.return_value': False,
-                'get_test.return_value': False}
+        args = {'get_tier.return_value': None,
+                'get_test.return_value': None}
         mock_obj.configure_mock(**args)
         with mock.patch('functest.ci.run_tests.tb.TierBuilder',
                         return_value=mock_obj), \
-            mock.patch('functest.ci.run_tests.source_rc_file'), \
-                mock.patch('functest.ci.run_tests.run_all') as m:
-            self.assertEqual(run_tests.main(**kwargs),
+            mock.patch('functest.ci.run_tests.Runner.source_rc_file'), \
+                mock.patch('functest.ci.run_tests.Runner.run_all') as m:
+            self.assertEqual(self.runner.main(**kwargs),
                              run_tests.Result.EX_OK)
             self.assertTrue(m.called)
 
+    def test_main_any_tier_test_ko(self, *args):
         kwargs = {'test': 'any', 'noclean': True, 'report': True}
         mock_obj = mock.Mock()
-        args = {'get_tier.return_value': False,
-                'get_test.return_value': False}
+        args = {'get_tier.return_value': None,
+                'get_test.return_value': None}
         mock_obj.configure_mock(**args)
         with mock.patch('functest.ci.run_tests.tb.TierBuilder',
                         return_value=mock_obj), \
-            mock.patch('functest.ci.run_tests.source_rc_file'), \
+            mock.patch('functest.ci.run_tests.Runner.source_rc_file'), \
                 mock.patch('functest.ci.run_tests.logger.debug') as m:
-            self.assertEqual(run_tests.main(**kwargs),
+            self.assertEqual(self.runner.main(**kwargs),
                              run_tests.Result.EX_ERROR)
             self.assertTrue(m.called)