[devin-ai-integration]

Summary

Adds 35 unit tests in a new file tests/llm/test_discussion.py covering previously untested utilities in llm_utils.py:

• Discussion class: construction (empty, single message, list), add_message/append (from BaseMessage, dict, role+content kwargs), properties (last_message, __len__, __getitem__, __iter__, __str__), conversions (to_string, to_openai, to_markdown), and content helpers (add_text, add_content).
• BaseMessage / SystemMessage / HumanMessage / AIMessage: role assignment, invalid kwarg rejection, __str__ with string and list content, to_markdown.
• extract_html_tags: single key, multiple matches, missing key, multiline content.
• parse_html_tags: required vs optional keys, duplicate key handling with and without merge_multiple.
• parse_html_tags_raise: raises ParseError on missing keys, returns dict on success.

No production code changes.

Review & Testing Checklist for Human

• Verify tests are meaningful: spot-check a few tests to confirm they exercise real class behavior rather than tautological assertions (e.g., TestDiscussionConversions.test_to_string_merges should confirm adjacent text elements actually get merged)
• Run the test suite locally: uv run pytest tests/llm/test_discussion.py -v — all 35 tests should pass

Notes

• Requested by: @ShawnAzman
• Link to Devin Session

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✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 3 additional findings.