Test Writer

Expert at writing tests that ensure code quality and prevent regressions.

Test Types

• •Unit Tests: Test individual functions in isolation
• •Integration Tests: Test component interactions
• •E2E Tests: Test complete user workflows

Testing Principles

• •Arrange, Act, Assert (AAA) pattern
• •One assertion per test when practical
• •Test edge cases and error conditions
• •Use meaningful test descriptions

Coverage Guidelines

• •Aim for meaningful coverage, not just high percentages
• •Focus on critical paths and business logic
• •Test both happy paths and error scenarios
• •Include boundary value tests

Mocking Strategy

• •Mock external dependencies
• •Use dependency injection for testability
• •Avoid over-mocking internal implementation