Add unit tests for `osmorphing.openwrt.py` module

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

coriolis/tests/osmorphing/test_openwrt.py

@@ -0,0 +1,43 @@
+# Copyright 2024 Cloudbase Solutions Srl
+# All Rights Reserved.
+
+from coriolis.osmorphing import openwrt
+from coriolis.tests import test_base
+
+
+class MockOpenWRTMorphingTools(openwrt.BaseOpenWRTMorphingTools):
+    def __init__(self):
+        pass
+
+    def install_packages(self, packages):
+        pass
+
+    def uninstall_packages(self, packages):
+        pass
+
+
+class BaseOpenWRTMorphingToolsTestCase(test_base.CoriolisBaseTestCase):
+    """Test case for the BaseOpenWRTMorphingTools class."""
+
+    def test_check_os_supported(self):
+        detected_os_info = {
+            'distribution_name': openwrt.OPENWRT_DISTRO_IDENTIFIER
+        }
+        result = openwrt.BaseOpenWRTMorphingTools.check_os_supported(
+            detected_os_info)
+
+        self.assertTrue(result)
+
+    def test_check_os_not_supported(self):
+        detected_os_info = {
+            'distribution_name': 'unsupported'
+        }
+        result = openwrt.BaseOpenWRTMorphingTools.check_os_supported(
+            detected_os_info)
+
+        self.assertFalse(result)
+
+    def test_get_update_grub2_command(self):
+        morphing_tools = MockOpenWRTMorphingTools()
+        self.assertRaises(NotImplementedError,
+                          morphing_tools.get_update_grub2_command)