You mentioned refactoring the framework for regression and reducing the time almost in half. What exactly did you refactor?

During the refactoring process of the regression testing framework, I focused on the following aspects:

• Optimizing the loading and initialization of test data to avoid redundant time costs.
• Eliminating code duplication and improving the test structure for better readability and maintainability.
• Implementing parallel test execution where possible to reduce overall execution time.
• Optimizing interactions with external services and databases, for example through caching or mocking.

As a result of these changes, the regression test execution time was nearly halved, which increased testing efficiency and accelerated the development cycle.