Add unit tests for `osmorphing.osdetect.oracle.py`

module

Signed-off-by: Mihaela Balutoiu <mbalutoiu@cloudbasesolutions.com>

coriolis/tests/osmorphing/osdetect/test_oracle.py

@@ -0,0 +1,35 @@
+# Copyright 2024 Cloudbase Solutions Srl
+# All Rights Reserved.
+
+from unittest import mock
+
+from coriolis.osmorphing.osdetect import base
+from coriolis.osmorphing.osdetect import oracle
+from coriolis.tests import test_base
+
+
+class OracleOSDetectToolsTestCase(test_base.CoriolisBaseTestCase):
+    """Test suite for the OracleOSDetectTools class."""
+
+    @mock.patch.object(base.BaseLinuxOSDetectTools, '_test_path')
+    @mock.patch.object(base.BaseLinuxOSDetectTools, '_read_file')
+    def test_detect_os(self, mock_read_file, mock_test_path):
+        mock_test_path.return_value = True
+        mock_read_file.return_value = b"Oracle Linux release 8.4"
+
+        expected_info = {
+            "os_type": oracle.constants.OS_TYPE_LINUX,
+            "distribution_name": oracle.ORACLE_DISTRO_IDENTIFIER,
+            "release_version": '8.4',
+            "friendly_release_name": "Oracle Linux Version 8.4"
+        }
+
+        oracle_os_detect_tools = oracle.OracleOSDetectTools(
+            mock.sentinel.conn, mock.sentinel.os_root_dir,
+            mock.sentinel.operation_timeout)
+
+        result = oracle_os_detect_tools.detect_os()
+        mock_test_path.assert_called_once_with("etc/oracle-release")
+        mock_read_file.assert_called_once_with("etc/oracle-release")
+
+        self.assertEqual(result, expected_info)