Writing Integration Tests

To improve test performance
To save database space
To prevent test interference
Data cleanup prevents test interference: 1) Ensures test isolation between runs, 2) Prevents false positives from previous test data, 3) Maintains consistent test environment, 4) Enables reliable test repetition, 5) Prevents data pollution between tests, 6) Ensures predictable test behavior, 7) Facilitates parallel test execution, 8) Maintains test database manageability.
To reduce test complexity