The terminal detection tests were failing because they expected the old
terminal mode behavior, but headless mode is now the default.
Fix:
- Add headless=False parameter to all terminal detection tests
- Tests now explicitly test interactive (terminal) mode
- test_subprocess_popen_called_with_correct_args: Tests terminal launch
- test_terminal_launch_error_handling: Tests error handling
- test_output_message_unknown_terminal: Tests warning messages
These tests only run on macOS (they're skipped on Linux) and test the
interactive terminal launch functionality, so they need headless=False.
Impact:
- All 3 failing macOS tests should now pass
- 391 tests passing on Linux
- CI should pass on macOS now
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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