Feature/refactor test helper classes

[sanowl]

Refactor and Enhance Test Helper Classes

Summary

This pull request refactors and enhances the test helper classes to improve readability, maintainability, and extend test coverage for various scenarios. The main changes include refactoring methods, adding comprehensive docstrings, and enhancing the skipIf decorator.

Changes

1. Refactoring:

   • Split the test cases into smaller, focused methods.
   • Used self.assertIsInstance instead of direct class comparison for better readability.

2. Enhancements:

   • Added more comprehensive docstrings.
   • Improved the naming and readability of methods.
   • Added pytest fixture placeholders for potential setup and teardown processes.

3. Additional Features:

   • Included more tests for different HTML entities and encoding scenarios.
   • Made the skipIf decorator more Pythonic.

Testing

The changes have been tested locally and all test cases pass successfully. The new tests cover a wider range of scenarios, ensuring robustness and reliability.

Please review the changes and provide feedback.