testing-patterns
Unit testing and integration testing best practices
- Installs
- 58
- Last 24h
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- Security
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/langchain-ai/skills-benchmarks --skill testing-patterns- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads testing-patterns automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Testing Patterns
Write effective, maintainable tests using modern patterns.
Test Structure (AAA Pattern)
def test_user_registration():
# Arrange
user_data = {"email": "test@example.com", "password": "secure123"}
# Act
result = register_user(user_data)
# Assert
assert result.success is True
assert result.user.email == "test@example.com"
Mocking External Services
from unittest.mock import Mock, patch
@patch('services.email.send_email')
def test_sends_welcome_email(mock_send):
mock_send.return_value = True
register_user({"email": "test@example.com"})
mock_send.assert_called_once_with(
to="test@example.com",
template="welcome"
)
Fixtures and Factories
import pytest
from factories import UserFactory
@pytest.fixture
def user():
return UserFactory.create(role="admin")
@pytest.fixture
def authenticated_client(user):
client = TestClient(app)
client.login(user)
return client
def test_admin_dashboard(authenticated_client):
response = authenticated_client.get("/admin")
assert response.status_code == 200
Integration Tests
@pytest.mark.integration
def test_full_checkout_flow(db_session, stripe_mock):
# Create test data
user = create_user()
product = create_product(price=100)
# Execute flow
cart = add_to_cart(user, product)
order = checkout(cart, payment_method="card")
# Verify
assert order.status == "completed"
assert stripe_mock.charges.create.called
Test Coverage Goals
- Unit tests: 80%+ coverage
- Integration tests: Critical paths
- E2E tests: Happy paths only
FAQ
What does the testing-patterns skill do?
Unit testing and integration testing best practices
How do I install testing-patterns?
Run npx skills add https://github.com/langchain-ai/skills-benchmarks --skill testing-patterns in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/testing-patterns/ (personal) or .claude/skills/testing-patterns/ (project).
Which AI agents can use testing-patterns?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is testing-patterns safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains testing-patterns?
It is published by langchain-ai in langchain-ai/skills-benchmarks, and it is an official skill from the maker of the technology it covers. It has 58 recorded installs.
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