Use when writing tests for Nextcloud apps, setting up test infrastructure, or mocking Nextcloud services. Prevents missing database transaction rollback in integration tests, incorrect mock setup, and untestable tight coupling. Covers PHPUnit setup with TestCase base class, unit testing with mocks,
Use when writing tests for Nextcloud apps, setting up test infrastructure, or mocking Nextcloud services. Prevents missing database transaction rollback in integration tests, incorrect mock setup, and untestable tight coupling. Covers PHPUnit setup with TestCase base class, unit testing with mocks, integration testing with DI container, database transaction management, frontend testing with Vue Te