Fixed test failures in CI environments without PyYAML or toml/tomli:
**Problem:**
- test_parse_yaml_config and test_parse_toml_config were failing in CI
- Tests expected ImportError but parse_config_file() doesn't raise it
- Instead, it adds error to parse_errors list and returns empty settings
- Tests then failed on `assertGreater(len(config_file.settings), 0)`
**Solution:**
- Check parse_errors for dependency messages after parsing
- Skip test if "PyYAML not installed" found in errors
- Skip test if "toml...not installed" found in errors
- Allows tests to pass locally (with deps) and skip in CI (without deps)
**Affected Tests:**
- test_parse_yaml_config - now skips without PyYAML
- test_parse_toml_config - now skips without toml/tomli
**CI Impact:**
- Was: 2 failures across all 6 CI jobs (12 total failures)
- Now: 2 skips across all 6 CI jobs (expected behavior)
These are optional dependencies not included in base install,
so skipping is the correct behavior for CI.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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