AgentSkillsCN

Test Design Patterns

应用测试模式，如AAA（安排-行动-断言）、模拟、固定装置和参数化，以实现可维护的测试套件

SKILL.md
--- frontmatter
name: "Test Design Patterns"
description: "Apply testing patterns like AAA (Arrange-Act-Assert), mocking, fixtures, and parameterization for maintainable test suites"
category: "testing"
required_tools: ["Read", "Write", "Bash"]

Test Design Patterns

Purpose

Apply proven testing patterns to create maintainable, reliable test suites that effectively validate functionality.

When to Use

  • •Writing unit, integration, or system tests
  • •Organizing test code
  • •Creating test fixtures and data
  • •Designing test strategies

Key Capabilities

  1. •AAA Pattern - Arrange-Act-Assert structure
  2. •Test Fixtures - Reusable test data and setup
  3. •Mocking/Stubbing - Isolate units under test

Approach

  1. •Arrange: Set up test data and conditions
  2. •Act: Execute the code being tested
  3. •Assert: Verify expected outcomes
  4. •Use descriptive test names
  5. •Keep tests independent and isolated

Example

Context: Testing a task creation function

python
def test_add_task_with_valid_input_creates_task():
    # Arrange
    queue = TaskQueue()
    task_data = {"title": "Test", "agent": "tester"}
    
    # Act
    task_id = queue.add_task(task_data)
    
    # Assert
    assert task_id is not None
    assert queue.get_task(task_id).title == "Test"

Best Practices

  • •✅ One logical assertion per test
  • •✅ Descriptive test names explaining scenario
  • •✅ Independent tests (no shared state)
  • •❌ Avoid: Testing multiple unrelated things together