QA Testing Methodology Skill

Apply proven test design patterns for comprehensive test coverage.

Test Case Design Order

Always design tests in this order:

1. Happy Path - Main success scenarios
2. Validation Tests - Required fields, format validation
3. Edge Cases - Boundary conditions, limits
4. Error Scenarios - Invalid inputs, system errors
5. Permission Tests - Access control, authorization

Equivalence Partitioning

Divide input data into partitions where all values should behave identically.

Example: Age Input Field (18-65)