Additional unit-test suggestions

[eonist]

Certainly! Expanding your unit tests is a great way to improve code quality and catch potential issues early. Here are some suggestions for additional unit tests you can add to your codebase:

1. Boundary Value Tests:

   • Test the limits of input ranges (e.g., maximum, minimum, just inside/outside boundaries).
   • Verify how the system handles extreme cases.

2. Negative Tests:

   • Provide invalid, unexpected, or random inputs to ensure the system handles them gracefully.
   • Confirm that appropriate errors or exceptions are raised.

3. Exception Handling Tests:

   • Force exceptions to occur and ensure they are handled correctly.
   • Check that resources are properly released even when errors occur.

4. Performance Tests:

   • Measure the execution time of critical functions.
   • Ensure that performance meets the required benchmarks under various conditions.

5. Concurrency Tests:

   • Test the behavior of the system when multiple threads or processes access shared resources.
   • Identify race conditions or deadlocks.

6. Resource Leak Tests:

   • Verify that the system does not leak resources like memory, file handles, or network connections.
   • Use profiling tools to detect leaks during test execution.

7. Security Tests:

   • Test authentication and authorization mechanisms.
   • Attempt common security attacks (e.g., SQL injection, cross-site scripting) in a controlled environment.

8. Integration Tests with Mocks/Stubs:

   • Mock external dependencies to isolate the unit being tested.
   • Simulate different responses from external services or APIs.

9. Configurations and Environment Tests:

   • Run tests with different configuration settings.
   • Ensure the system behaves correctly across various environments (development, testing, production).

10. Regression Tests:

    • Add tests for bugs that have been fixed to prevent them from reoccurring.
    • Maintain a suite of tests that cover critical paths in the application.

11. Locale and Internationalization Tests:

    • Test with different locale settings.
    • Ensure that date formats, number formats, and translations work as expected.

12. Data-Driven Tests:

    • Use a range of input data sets to run the same test logic.
    • Helps in identifying issues with different data conditions.

13. API Contract Tests:

    • Verify that APIs conform to their specifications.
    • Check for proper request and response formats, including headers and status codes.

14. State Transition Tests:

    • For stateful components, test transitions between different states.
    • Ensure that invalid state transitions are handled properly.

15. Compatibility Tests:

    • Test the application with different versions of dependencies.
    • Ensure compatibility with various operating systems, browsers, or devices if applicable.

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If you can provide more details about specific modules or functionalities in your codebase, I'd be happy to suggest more tailored unit tests. Additionally, incorporating code coverage tools can help identify untested parts of your code.