test: Add unit test for pydumpling/debug_dumpling.py

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Trigger Info

Trigger Type	Triggered By	Source File	Assignment
Manual	cocolato	pydumpling/debug_dumpling.py	Detail

Summary

This PR introduces a comprehensive test suite for the pydumpling library, specifically targeting the load_dumpling, mock_inspect, and debug_dumpling functionalities. The following changes are included:

• Fixtures:

  • Added mock_frame and mock_traceback fixtures to simulate frame and traceback objects for testing.

  • Added dump_file fixture to create a temporary .dump file for testing purposes.

• Tests for load_dumpling:

  • Verified loading of .dump files serialized with pickle.

  • Verified loading of .dump files serialized with dill.

  • Added a test to handle FileNotFoundError when the dump file does not exist.

• Tests for mock_inspect:

  • Ensured that mock_inspect correctly modifies the behavior of inspect to recognize FakeFrame, FakeTraceback, and FakeCode as valid types.

• Tests for debug_dumpling:

  • Verified that debug_dumpling works with a valid version and invokes the post_mortem method of the provided pdb instance.

  • Added tests to handle unsupported dumpling versions, including both very old and newer versions.

This test suite ensures robust validation of the core functionalities and improves the reliability of the pydumpling library.

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