cuioss/dev-general-module-testing

Testing Methodology Skill

REFERENCE MODE: This skill provides reference material. Load specific standards on-demand based on current task.

Language-agnostic testing principles applicable across all technology stacks. Covers test structure, organization, coverage requirements, property-based testing, test doubles, and reliability patterns.

Workflow

Step 1: Load Testing Methodology

Important: Load this standard for any testing work.

Read: standards/testing-methodology.md

Covers AAA pattern, test categories (happy path, parameter variants, corner cases, error conditions), test class organization, naming, data generation, property-based testing, test doubles taxonomy, reliability, and anti-patterns.

Step 2: Load Coverage Standards (As Needed)

Read: standards/testing-coverage.md

Use when: Analyzing test coverage, defining corner cases, improving coverage metrics, or boundary value analysis.

Related

• pm-dev-java:junit-core — JUnit 5 testing patterns
• pm-dev-frontend:jest-testing — Jest testing patterns
• pm-dev-java-cui:cui-testing — CUI test generator framework

Code Examples

AAA Pattern

def test_discount_applied_for_premium_user():
    # Arrange
    user = User(tier="premium")
    cart = Cart(items=[Item(price=100)])

    # Act
    total = cart.checkout(user)

    # Assert
    assert total == 90  # 10% premium discount

Standards Reference

| Standard | Purpose | |----------|---------| | testing-methodology.md | AAA pattern, test structure, naming, organization, property-based testing, test doubles, determinism, foundation-utility CLI testing, constructed-argv assertion at the lowest subprocess primitive, real-resolver E2E testing for path-resolver/create side effects (cross-references plugin-doctor test-conventions rules) | | testing-coverage.md | Coverage requirements, corner cases, boundary testing |