feat: add localization tests and improve locale handling in tools

test_localization_debug.py

@@ -0,0 +1,35 @@
+import os
+import sys
+
+sys.path.append(".")
+
+from tests.test_utf8_localization import TestTool
+
+# Test the language instruction generation
+tool = TestTool()
+
+# Test French locale
+print("Testing French locale...")
+os.environ["LOCALE"] = "fr-FR"
+instruction_fr = tool.get_language_instruction()
+print(f'French instruction: "{instruction_fr}"')
+
+# Test English locale
+print("Testing English locale...")
+os.environ["LOCALE"] = "en-US"
+instruction_en = tool.get_language_instruction()
+print(f'English instruction: "{instruction_en}"')
+
+# Test empty locale
+print("Testing empty locale...")
+os.environ["LOCALE"] = ""
+instruction_empty = tool.get_language_instruction()
+print(f'Empty instruction: "{instruction_empty}"')
+
+# Test no locale
+print("Testing no locale...")
+os.environ.pop("LOCALE", None)
+instruction_none = tool.get_language_instruction()
+print(f'None instruction: "{instruction_none}"')
+
+print("Test completed.")