First Move (11~18) - Code, Learn, Build
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First Move (11~18) - Code, Learn, Build

Structured, level-based technology learning paths from foundational exploration to industry mastery.

Learning Domains

  • Python Programming (Active)
  • Computer Science Core
  • Web Development
  • AI & Machine Learning

Platform Architecture

  • Level-Based Progression
  • Decoupled Content Schema
  • Modular Code Execution Engine
  • Curated Official Resources

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← Software Testing & Quality Assurance|Level 1: Automated Unit Testing & TDD Principles

1. Software Testing Principles, Test Pyramid & AAA Pattern

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Software Testing Principles, Test Pyramid & AAA Pattern

Learn the Test Pyramid (Unit vs Integration vs E2E), FIRST test characteristics, boundary value testing, and Arrange-Act-Assert pattern.

Learning Objectives & The Test Pyramid

### Learning Objectives - Differentiate between Unit, Integration, and End-to-End (E2E) testing tiers in the Test Pyramid. - Structure readable test cases using the **Arrange-Act-Assert (AAA)** pattern. - Apply F.I.R.S.T. unit test properties (Fast, Independent, Repeatable, Self-validating, Timely). - Perform Boundary Value Analysis (BVA) to detect edge case defects. --- ### The Testing Pyramid Architecture 1. **Unit Tests (70%)**: Fast, isolated tests evaluating pure functions and individual methods without network or database dependencies. 2. **Integration Tests (20%)**: Tests evaluating multi-component interactions (e.g. API route connecting to database). 3. **E2E Tests (10%)**: Slow, browser-level user journey flows verifying end-to-end system health.
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