update files with extract_linux_distribution_os_info

Author: feng-j678

src/core/tests/Test_EnvLayer.py

@@ -118,14 +118,14 @@ def test_extract_linux_distribution_os_info_no_data(self):
         os_offer, os_version, os_name = self.envlayer.platform.extract_linux_distribution_os_info()
 
         # Verify
-        self.assertEqual(os_offer, None)
-        self.assertEqual(os_version, None)
-        self.assertEqual(os_name, None)
+        self.assertIsNone(os_offer, None)
+        self.assertIsNone(os_version, None)
+        self.assertIsNone(os_name, None)
 
         # Restore mocks
         self.envlayer.platform.linux_distribution = self.backup_linux_distribution
         platform.system = self.backup_platform_system
 
 
 if __name__ == '__main__':
-    unittest.main()
+    unittest.main()

src/core/tests/Test_YumPackageManager.py

@@ -680,8 +680,8 @@ def test_obsolete_packages_should_not_considered_in_available_updates(self):
     def test_rhel7_image_with_security_plugin(self):
         """Unit test for yum package manager rhel images below 8 and Classification = Security"""
         # mock linux_distribution
-        backup_envlayer_platform_linux_distribution = LegacyEnvLayerExtensions.LegacyPlatform.linux_distribution_images_details
-        LegacyEnvLayerExtensions.LegacyPlatform.linux_distribution_images_details = self.mock_linux7_distribution_to_return_redhat
+        backup_envlayer_platform_linux_distribution = LegacyEnvLayerExtensions.LegacyPlatform.extract_linux_distribution_os_info
+        LegacyEnvLayerExtensions.LegacyPlatform.extract_linux_distribution_os_info = self.mock_linux7_distribution_to_return_redhat
 
         self.__assert_test_rhel8_image()
 
@@ -691,8 +691,8 @@ def test_rhel7_image_with_security_plugin(self):
     def test_rhel8_image_higher_no_security_plugin(self):
         """Unit test for yum package manager rhel images >= 8 and Classification = Security"""
         # mock linux_distribution
-        backup_envlayer_platform_linux_distribution = LegacyEnvLayerExtensions.LegacyPlatform.linux_distribution_images_details
-        LegacyEnvLayerExtensions.LegacyPlatform.linux_distribution_images_details = self.mock_linux8_distribution_to_return_redhat
+        backup_envlayer_platform_linux_distribution = LegacyEnvLayerExtensions.LegacyPlatform.extract_linux_distribution_os_info
+        LegacyEnvLayerExtensions.LegacyPlatform.extract_linux_distribution_os_info = self.mock_linux8_distribution_to_return_redhat
 
         self.__assert_test_rhel8_image()
 

src/core/tests/library/LegacyEnvLayerExtensions.py

@@ -28,7 +28,7 @@ class LegacyPlatform(object):
         def linux_distribution(self):
             return ['Ubuntu', '16.04', 'Xenial']
 
-        def linux_distribution_images_details(self):
+        def extract_linux_distribution_os_info(self):
             return ['Red Hat Enterprise Linux Server', '7', 'Maipo']
 
         @staticmethod