Merge "Define create_snapshot() and clean() in TestCase"

15 files changed, 148 insertions, 100 deletions

diff --git a/functest/ci/run_tests.py b/functest/ci/run_tests.py
index 9b64a0ce..af45c321 100755
--- a/functest/ci/run_tests.py
+++ b/functest/ci/run_tests.py
@@ -22,8 +22,6 @@ import prettytable
 import functest.ci.tier_builder as tb
 import functest.core.testcase as testcase
 import functest.utils.functest_utils as ft_utils
-import functest.utils.openstack_clean as os_clean
-import functest.utils.openstack_snapshot as os_snapshot
 import functest.utils.openstack_utils as os_utils
 from functest.utils.constants import CONST
 
@@ -98,14 +96,6 @@ class Runner(object):
                     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:
             dict = ft_utils.get_dict_by_test(testname)
@@ -124,14 +114,11 @@ class Runner(object):
                 "The test case {} is not enabled".format(test.get_name()))
         logger.info("\n")  # blank line
         self.print_separator("=")
-        logger.info("Running test case '%s'..." % test.get_name())
+        logger.info("Running test case '%s'...", test.get_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.get_name()
         if self.report_flag:
             flags += " -r"
@@ -145,6 +132,9 @@ class Runner(object):
                 test_dict = ft_utils.get_dict_by_test(test.get_name())
                 test_case = cls(**test_dict)
                 self.executed_test_cases.append(test_case)
+                if self.clean_flag:
+                    if test_case.create_snapshot() != test_case.EX_OK:
+                        return result
                 try:
                     kwargs = run_dict['args']
                     result = test_case.run(**kwargs)
@@ -155,6 +145,8 @@ class Runner(object):
                         test_case.push_to_db()
                     result = test_case.is_successful()
                 logger.info("Test result:\n\n%s\n", test_case)
+                if self.clean_flag:
+                    test_case.clean()
             except ImportError:
                 logger.exception("Cannot import module {}".format(
                     run_dict['module']))
@@ -164,15 +156,7 @@ class Runner(object):
         else:
             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.get_name())
-            self.overall_result = Result.EX_ERROR
-            if test.is_blocking():
-                raise BlockingTestFailed(
-                    "The test case {} failed and is blocking".format(
-                        test.get_name()))
+        return result
 
     def run_tier(self, tier):
         tier_name = tier.get_name()
@@ -187,7 +171,14 @@ class Runner(object):
         self.print_separator("#")
         logger.debug("\n%s" % tier)
         for test in tests:
-            self.run_test(test, tier_name)
+            result = self.run_test(test, tier_name)
+            if result != testcase.TestCase.EX_OK:
+                logger.error("The test case '%s' failed.", test.get_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_all(self, tiers):
         summary = ""
@@ -225,9 +216,14 @@ class Runner(object):
                 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'])
+                    result = self.run_test(
+                        _tiers.get_test(kwargs['test']),
+                        _tiers.get_tier_name(kwargs['test']),
+                        kwargs['test'])
+                    if result != testcase.TestCase.EX_OK:
+                        logger.error("The test case '%s' failed.",
+                                     kwargs['test'])
+                        self.overall_result = Result.EX_ERROR
                 elif kwargs['test'] == "all":
                     self.run_all(_tiers)
                 else:
diff --git a/functest/ci/testcases.yaml b/functest/ci/testcases.yaml
index 8222df10..7d518324 100644
--- a/functest/ci/testcases.yaml
+++ b/functest/ci/testcases.yaml
@@ -12,7 +12,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: true
-                clean_flag: false
                 description: >-
                     This test case verifies the retrieval of OpenStack clients:
                     Keystone, Glance, Neutron and Nova and may perform some
@@ -31,7 +30,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: true
-                clean_flag: false
                 description: >-
                     This test case verifies the retrieval of OpenStack clients:
                     Keystone, Glance, Neutron and Nova and may perform some
@@ -50,7 +48,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: true
-                clean_flag: false
                 description: >-
                     This test case creates executes the SimpleHealthCheck
                     Python test class which creates an, image, flavor, network,
@@ -75,7 +72,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: true
-                clean_flag: true
                 description: >-
                     This test case verifies: 1) SSH to an instance using floating
                     IPs over the public network. 2) Connectivity between 2 instances
@@ -92,7 +88,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: true
-                clean_flag: true
                 description: >-
                     This test case verifies:  1) Boot a VM with given userdata.
                     2) Connectivity between 2 instances over a private network.
@@ -108,7 +103,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     This test case runs the smoke subset of the OpenStack
                     Tempest suite. The list of test cases is generated by
@@ -126,7 +120,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: false
                 description: >-
                     This test case runs a sub group of tests of the OpenStack
                     Rally suite in smoke mode.
@@ -142,7 +135,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     This test case runs a sub group of tests of the OpenStack
                     Defcore testcases by using refstack client.
@@ -158,7 +150,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: true
-                clean_flag: false
                 description: >-
                     Test Suite for the OpenDaylight SDN Controller. It
                     integrates some test suites from upstream using
@@ -179,7 +170,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: false
                 description: >-
                     Test Suite for the OpenDaylight SDN Controller when
                     the NetVirt features are installed. It integrates
@@ -202,7 +192,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: false
                 description: >-
                     Test Suite for the OpenDaylight SDN Controller when GBP features are
                     installed. It integrates some test suites from upstream using
@@ -222,7 +211,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: true
-                clean_flag: true
                 description: >-
                     Test Suite for the ONOS SDN Controller. It integrates
                     some test suites from upstream using TestON as the test
@@ -239,7 +227,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: false
                 description: >-
                     This test case contains tests that setup and destroy
                     environments with VMs with and without Floating IPs
@@ -269,7 +256,6 @@ tiers:
                 project_name: promise
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite from Promise project.
                 dependencies:
@@ -287,7 +273,6 @@ tiers:
                 project_name: doctor
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite from Doctor project.
                 dependencies:
@@ -304,7 +289,6 @@ tiers:
                 project_name: sdnvpn
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite from SDNVPN project.
                 dependencies:
@@ -322,7 +306,6 @@ tiers:
                 project_name: securityscanning
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Simple Security Scan
                 dependencies:
@@ -340,7 +323,6 @@ tiers:
                 project_name: copper
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite for policy management based on OpenStack Congress
                 dependencies:
@@ -358,7 +340,6 @@ tiers:
                 project_name: multisite
                 criteria: 100
                 blocking: false
-                clean_flag: false
                 description: >-
                     Test suite from kingbird
                 dependencies:
@@ -374,7 +355,6 @@ tiers:
                 project_name: sfc
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite for odl-sfc to test two chains and two SFs
                 dependencies:
@@ -392,7 +372,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: true
-                clean_flag: true
                 description: >-
                     Test Suite for onos-sfc to test sfc function.
                 dependencies:
@@ -408,7 +387,6 @@ tiers:
                 project_name: parser
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite from Parser project.
                 dependencies:
@@ -426,7 +404,6 @@ tiers:
                 project_name: domino
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite from Domino project.
                 dependencies:
@@ -444,7 +421,6 @@ tiers:
                 project_name: netready
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite from Netready project.
                 dependencies:
@@ -462,7 +438,6 @@ tiers:
                 project_name: barometer
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     Test suite for the Barometer project. Separate tests verify the
                     proper configuration and functionality of the following
@@ -487,7 +462,6 @@ tiers:
                 project_name: functest
                 criteria: 80
                 blocking: false
-                clean_flag: true
                 description: >-
                     The list of test cases is generated by
                     Tempest automatically and depends on the parameters of
@@ -504,7 +478,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     The test case allows running a customized list of tempest
                     test cases defined in a file under
@@ -523,7 +496,6 @@ tiers:
                 project_name: functest
                 criteria: 90
                 blocking: false
-                clean_flag: false
                 description: >-
                     This test case runs the full suite of scenarios of the OpenStack
                     Rally suite using several threads and iterations.
@@ -546,7 +518,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     This test case deploys an OpenSource vIMS solution from Clearwater
                     using the Cloudify orchestrator. It also runs some signaling traffic.
@@ -563,7 +534,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                    Test suite from Parser project.
                 dependencies:
@@ -579,7 +549,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     VNF deployment with OpenBaton (Orchestra)
                 dependencies:
@@ -595,7 +564,6 @@ tiers:
                 project_name: opera
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     VNF deployment with OPEN-O
                 dependencies:
@@ -611,7 +579,6 @@ tiers:
                 project_name: functest
                 criteria: 100
                 blocking: false
-                clean_flag: true
                 description: >-
                     This test case is vRouter testing.
                 dependencies:
diff --git a/functest/ci/tier_builder.py b/functest/ci/tier_builder.py
index d03cd903..f8038468 100644
--- a/functest/ci/tier_builder.py
+++ b/functest/ci/tier_builder.py
@@ -52,7 +52,6 @@ class TierBuilder(object):
                                        dependency=dep,
                                        criteria=dic_testcase['criteria'],
                                        blocking=dic_testcase['blocking'],
-                                       clean_flag=dic_testcase['clean_flag'],
                                        description=dic_testcase['description'])
                 if (testcase.is_compatible(self.ci_installer,
                                            self.ci_scenario) and
diff --git a/functest/ci/tier_handler.py b/functest/ci/tier_handler.py
index 36ce245e..4f2f14ec 100644
--- a/functest/ci/tier_handler.py
+++ b/functest/ci/tier_handler.py
@@ -109,14 +109,12 @@ class TestCase(object):
                  dependency,
                  criteria,
                  blocking,
-                 clean_flag,
                  description=""):
         self.name = name
         self.enabled = enabled
         self.dependency = dependency
         self.criteria = criteria
         self.blocking = blocking
-        self.clean_flag = clean_flag
         self.description = description
 
     @staticmethod
@@ -149,9 +147,6 @@ class TestCase(object):
     def is_blocking(self):
         return self.blocking
 
-    def needs_clean(self):
-        return self.clean_flag
-
     def __str__(self):
         lines = split_text(self.description, LINE_LENGTH - 6)
 
diff --git a/functest/core/testcase.py b/functest/core/testcase.py
index 43161525..50ca2ce4 100644
--- a/functest/core/testcase.py
+++ b/functest/core/testcase.py
@@ -15,6 +15,8 @@ import os
 import prettytable
 
 import functest.utils.functest_utils as ft_utils
+import functest.utils.openstack_clean as os_clean
+import functest.utils.openstack_snapshot as os_snapshot
 
 __author__ = "Cedric Ollivier <cedric.ollivier@orange.com>"
 
@@ -176,3 +178,51 @@ class TestCase(object):
         except Exception:  # pylint: disable=broad-except
             self.__logger.exception("The results cannot be pushed to DB")
             return TestCase.EX_PUSH_TO_DB_ERROR
+
+    def create_snapshot(self):  # pylint: disable=no-self-use
+        """Save the testing environement before running test.
+
+        It can be overriden if resources must be listed running the
+        test case.
+
+        Returns:
+            TestCase.EX_OK
+        """
+        return TestCase.EX_OK
+
+    def clean(self):
+        """Clean the resources.
+
+        It can be overriden if resources must be deleted after
+        running the test case.
+        """
+
+
+class OSGCTestCase(TestCase):
+    """Model for single test case which requires an OpenStack Garbage
+    Collector."""
+
+    __logger = logging.getLogger(__name__)
+
+    def create_snapshot(self):
+        """Create a snapshot listing the OpenStack resources.
+
+        Returns:
+            TestCase.EX_OK if os_snapshot.main() returns 0.
+            TestCase.EX_RUN_ERROR otherwise.
+        """
+        try:
+            assert os_snapshot.main() == 0
+            self.__logger.info("OpenStack resources snapshot created")
+            return TestCase.EX_OK
+        except Exception:  # pylint: disable=broad-except
+            self.__logger.exception("Cannot create the snapshot")
+            return TestCase.EX_RUN_ERROR
+
+    def clean(self):
+        """Clean the OpenStack resources."""
+        try:
+            assert os_clean.main() == 0
+            self.__logger.info("OpenStack resources cleaned")
+        except Exception:  # pylint: disable=broad-except
+            self.__logger.exception("Cannot clean the OpenStack resources")
diff --git a/functest/opnfv_tests/openstack/rally/rally.py b/functest/opnfv_tests/openstack/rally/rally.py
index e362fd4d..2ae6817d 100644
--- a/functest/opnfv_tests/openstack/rally/rally.py
+++ b/functest/opnfv_tests/openstack/rally/rally.py
@@ -27,7 +27,7 @@ import functest.utils.openstack_utils as os_utils
 logger = logging.getLogger(__name__)
 
 
-class RallyBase(testcase.TestCase):
+class RallyBase(testcase.OSGCTestCase):
     TESTS = ['authenticate', 'glance', 'cinder', 'heat', 'keystone',
              'neutron', 'nova', 'quotas', 'requests', 'vm', 'all']
     GLANCE_IMAGE_NAME = CONST.__getattribute__('openstack_image_name')
diff --git a/functest/opnfv_tests/openstack/refstack_client/refstack_client.py b/functest/opnfv_tests/openstack/refstack_client/refstack_client.py
index 5f1f3a1d..b2a21533 100755
--- a/functest/opnfv_tests/openstack/refstack_client/refstack_client.py
+++ b/functest/opnfv_tests/openstack/refstack_client/refstack_client.py
@@ -27,7 +27,7 @@ from tempest_conf import TempestConf
 logger = logging.getLogger(__name__)
 
 
-class RefstackClient(testcase.TestCase):
+class RefstackClient(testcase.OSGCTestCase):
 
     def __init__(self, **kwargs):
         if "case_name" not in kwargs:
diff --git a/functest/opnfv_tests/openstack/tempest/tempest.py b/functest/opnfv_tests/openstack/tempest/tempest.py
index 65d9f1fa..cb8e9b4a 100644
--- a/functest/opnfv_tests/openstack/tempest/tempest.py
+++ b/functest/opnfv_tests/openstack/tempest/tempest.py
@@ -28,7 +28,7 @@ import functest.utils.functest_utils as ft_utils
 logger = logging.getLogger(__name__)
 
 
-class TempestCommon(testcase.TestCase):
+class TempestCommon(testcase.OSGCTestCase):
 
     def __init__(self, **kwargs):
         super(TempestCommon, self).__init__(**kwargs)
diff --git a/functest/opnfv_tests/openstack/vping/vping_base.py b/functest/opnfv_tests/openstack/vping/vping_base.py
index 7f568821..856d5f22 100644
--- a/functest/opnfv_tests/openstack/vping/vping_base.py
+++ b/functest/opnfv_tests/openstack/vping/vping_base.py
@@ -13,7 +13,7 @@ import os
 import time
 import uuid
 
-from functest.core.testcase import TestCase
+from functest.core import testcase
 from functest.utils import functest_utils
 from functest.utils.constants import CONST
 
@@ -24,7 +24,7 @@ from snaps.openstack.tests import openstack_tests
 from snaps.openstack.utils import deploy_utils, nova_utils
 
 
-class VPingBase(TestCase):
+class VPingBase(testcase.OSGCTestCase):
 
     """
     Base class for vPing tests that check connectivity between two VMs shared
@@ -152,12 +152,12 @@ class VPingBase(TestCase):
         else:
             raise Exception('VMs never became active')
 
-        if result == TestCase.EX_RUN_ERROR:
-            return TestCase.EX_RUN_ERROR
+        if result == testcase.TestCase.EX_RUN_ERROR:
+            return testcase.TestCase.EX_RUN_ERROR
 
         self.stop_time = time.time()
         self.result = 100
-        return TestCase.EX_OK
+        return testcase.TestCase.EX_OK
 
     def _cleanup(self):
         """
diff --git a/functest/tests/unit/ci/test_run_tests.py b/functest/tests/unit/ci/test_run_tests.py
index 88e5d2b8..fb8cb391 100644
--- a/functest/tests/unit/ci/test_run_tests.py
+++ b/functest/tests/unit/ci/test_run_tests.py
@@ -38,8 +38,12 @@ class RunTestsTesting(unittest.TestCase):
                       'OS_PASSWORD': 'test_password'}
         self.test = {'test_name': 'test_name'}
         self.tier = mock.Mock()
+        test1 = mock.Mock()
+        test1.get_name.return_value = 'test1'
+        test2 = mock.Mock()
+        test2.get_name.return_value = 'test2'
         attrs = {'get_name.return_value': 'test_tier',
-                 'get_tests.return_value': ['test1', 'test2'],
+                 'get_tests.return_value': [test1, test2],
                  'get_ci_loop.return_value': 'test_ci_loop',
                  'get_test_names.return_value': ['test1', 'test2']}
         self.tier.configure_mock(**attrs)
@@ -70,16 +74,6 @@ class RunTestsTesting(unittest.TestCase):
                         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):
-        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):
-        self.runner.cleanup()
-        self.assertTrue(mock_os_clean.called)
-
     def test_get_run_dict_if_defined_default(self):
         mock_obj = mock.Mock()
         with mock.patch('functest.ci.run_tests.'
@@ -137,8 +131,6 @@ class RunTestsTesting(unittest.TestCase):
 
     @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)))
@@ -161,10 +153,10 @@ class RunTestsTesting(unittest.TestCase):
     def test_run_tier_default(self, mock_logger_info):
         with mock.patch('functest.ci.run_tests.Runner.print_separator'), \
                 mock.patch(
-                    'functest.ci.run_tests.Runner.run_test') as mock_method:
+                    'functest.ci.run_tests.Runner.run_test',
+                    return_value=TestCase.EX_OK) 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')
+            mock_method.assert_any_call(mock.ANY, 'test_tier')
             self.assertTrue(mock_logger_info.called)
 
     @mock.patch('functest.ci.run_tests.logger.info')
@@ -237,7 +229,8 @@ class RunTestsTesting(unittest.TestCase):
         with mock.patch('functest.ci.run_tests.tb.TierBuilder',
                         return_value=mock_obj), \
             mock.patch('functest.ci.run_tests.Runner.source_rc_file'), \
-                mock.patch('functest.ci.run_tests.Runner.run_test') as m:
+                mock.patch('functest.ci.run_tests.Runner.run_test',
+                           return_value=TestCase.EX_OK) as m:
             self.assertEqual(self.runner.main(**kwargs),
                              run_tests.Result.EX_OK)
             self.assertTrue(m.called)
diff --git a/functest/tests/unit/ci/test_tier_builder.py b/functest/tests/unit/ci/test_tier_builder.py
index 989c0870..ab75e15b 100644
--- a/functest/tests/unit/ci/test_tier_builder.py
+++ b/functest/tests/unit/ci/test_tier_builder.py
@@ -24,7 +24,6 @@ class TierBuilderTesting(unittest.TestCase):
                          'case_name': 'test_name',
                          'criteria': 'test_criteria',
                          'blocking': 'test_blocking',
-                         'clean_flag': 'test_clean_flag',
                          'description': 'test_desc'}
 
         self.dic_tier = {'name': 'test_tier',
diff --git a/functest/tests/unit/ci/test_tier_handler.py b/functest/tests/unit/ci/test_tier_handler.py
index c93fffd3..1909ac22 100644
--- a/functest/tests/unit/ci/test_tier_handler.py
+++ b/functest/tests/unit/ci/test_tier_handler.py
@@ -34,7 +34,6 @@ class TierHandlerTesting(unittest.TestCase):
                                               self.mock_depend,
                                               'test_criteria',
                                               'test_blocking',
-                                              'test_clean_flag',
                                               description='test_desc')
 
         self.dependency = tier_handler.Dependency('test_installer',
diff --git a/functest/tests/unit/core/test_testcase.py b/functest/tests/unit/core/test_testcase.py
index ef0983cc..0a6f0c9f 100644
--- a/functest/tests/unit/core/test_testcase.py
+++ b/functest/tests/unit/core/test_testcase.py
@@ -221,6 +221,55 @@ class TestCaseTesting(unittest.TestCase):
         self.assertIn(duration, message)
         self.assertIn('FAIL', message)
 
+    def test_create_snapshot(self):
+        self.assertEqual(self.test.create_snapshot(),
+                         testcase.TestCase.EX_OK)
+
+    def test_clean(self):
+        self.assertEqual(self.test.clean(), None)
+
+
+class OSGCTestCaseTesting(unittest.TestCase):
+    """The class testing OSGCTestCase."""
+    # pylint: disable=missing-docstring
+
+    def setUp(self):
+        self.test = testcase.OSGCTestCase()
+
+    @mock.patch('functest.utils.openstack_snapshot.main',
+                side_effect=Exception)
+    def test_create_snapshot_exc(self, mock_method=None):
+        self.assertEqual(self.test.create_snapshot(),
+                         testcase.TestCase.EX_RUN_ERROR)
+        mock_method.assert_called_once_with()
+
+    @mock.patch('functest.utils.openstack_snapshot.main', return_value=-1)
+    def test_create_snapshot_ko(self, mock_method=None):
+        self.assertEqual(self.test.create_snapshot(),
+                         testcase.TestCase.EX_RUN_ERROR)
+        mock_method.assert_called_once_with()
+
+    @mock.patch('functest.utils.openstack_snapshot.main', return_value=0)
+    def test_create_snapshot_env(self, mock_method=None):
+        self.assertEqual(self.test.create_snapshot(),
+                         testcase.TestCase.EX_OK)
+        mock_method.assert_called_once_with()
+
+    @mock.patch('functest.utils.openstack_clean.main', side_effect=Exception)
+    def test_clean_exc(self, mock_method=None):
+        self.assertEqual(self.test.clean(), None)
+        mock_method.assert_called_once_with()
+
+    @mock.patch('functest.utils.openstack_clean.main', return_value=-1)
+    def test_clean_ko(self, mock_method=None):
+        self.assertEqual(self.test.clean(), None)
+        mock_method.assert_called_once_with()
+
+    @mock.patch('functest.utils.openstack_clean.main', return_value=0)
+    def test_clean(self, mock_method=None):
+        self.assertEqual(self.test.clean(), None)
+        mock_method.assert_called_once_with()
+
 
 if __name__ == "__main__":
     logging.disable(logging.CRITICAL)
diff --git a/functest/utils/openstack_clean.py b/functest/utils/openstack_clean.py
index 29106d9e..cdd91852 100755
--- a/functest/utils/openstack_clean.py
+++ b/functest/utils/openstack_clean.py
@@ -22,9 +22,9 @@
 # http://www.apache.org/licenses/LICENSE-2.0
 #
 
-import time
-
 import logging
+import sys
+import time
 import yaml
 
 import functest.utils.openstack_utils as os_utils
@@ -392,7 +392,7 @@ def main():
     except Exception:
         logger.info("The file %s does not exist. The OpenStack snapshot must"
                     " be created first. Aborting cleanup." % OS_SNAPSHOT_FILE)
-        exit(0)
+        return 0
 
     default_images = snapshot_yaml.get('images')
     default_instances = snapshot_yaml.get('instances')
@@ -407,7 +407,7 @@ def main():
     if not os_utils.check_credentials():
         logger.error("Please source the openrc credentials and run "
                      "the script again.")
-        exit(-1)
+        return -1
 
     remove_instances(nova_client, default_instances)
     separator()
@@ -429,4 +429,4 @@ def main():
 
 if __name__ == '__main__':
     logging.basicConfig()
-    main()
+    sys.exit(main())
diff --git a/functest/utils/openstack_snapshot.py b/functest/utils/openstack_snapshot.py
index 952fb7bb..8f1d3b9b 100755
--- a/functest/utils/openstack_snapshot.py
+++ b/functest/utils/openstack_snapshot.py
@@ -22,6 +22,7 @@
 
 import logging
 import yaml
+import sys
 
 import functest.utils.openstack_utils as os_utils
 from functest.utils.constants import CONST
@@ -139,7 +140,7 @@ def main():
     if not os_utils.check_credentials():
         logger.error("Please source the openrc credentials and run the" +
                      "script again.")
-        exit(-1)
+        return -1
 
     snapshot = {}
     snapshot.update(get_instances(nova_client))
@@ -163,4 +164,4 @@ def main():
 
 if __name__ == '__main__':
     logging.basicConfig()
-    main()
+    sys.exit(main())