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Python Testing Toolkit

$29

Pytest fixtures, factories, mocking patterns, property-based testing, and CI integration for comprehensive test suites.

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📁 File Structure 27 files

python-testing-toolkit/ ├── LICENSE ├── README.md ├── ci/ │ ├── github-actions-pytest.yml │ └── pre-commit-config.yaml ├── examples/ │ ├── example_conftest.py │ ├── test_api_example.py │ ├── test_database_example.py │ └── test_property_based_example.py ├── free-sample.zip ├── guide/ │ ├── ci-integration.md │ ├── fixtures-and-factories.md │ ├── mocking-patterns.md │ ├── property-based-testing.md │ └── pytest-mastery-guide.md ├── guides/ │ ├── ci-integration.md │ ├── fixtures-and-factories.md │ ├── mocking-patterns.md │ ├── property-based-testing.md │ └── pytest-mastery-guide.md ├── index.html ├── pyproject.toml └── src/ └── testing_toolkit/ ├── __init__.py ├── assertions.py ├── builders.py ├── factories.py ├── fixtures.py └── mocks.py

📖 Documentation Preview README excerpt

Python Testing Toolkit

A comprehensive, battle-tested collection of pytest patterns, reusable fixtures, test-data factories, mocking utilities, and CI pipeline configurations. Built for Python developers who want reliable, maintainable, and fast test suites.

What's Inside

CategoryFilesDescription
Guides5 deep-dive documentsPytest mastery, fixtures & factories, mocking patterns, property-based testing, CI integration
Toolkit Source5 Python modulesReusable fixtures, factory builders, mock helpers, custom assertions, fluent builders
Examples4 annotated test filesAPI testing, database testing, property-based testing, conftest patterns
CI Configs2 pipeline filesGitHub Actions workflow, pre-commit hooks
Project Configpyproject.tomlPytest + coverage settings tuned for real projects

Quick Start


# 1. Copy the toolkit into your project
cp -r src/testing_toolkit/ your_project/tests/toolkit/

# 2. Copy the example conftest for reference
cp examples/example_conftest.py your_project/tests/conftest.py

# 3. Copy CI configs
cp ci/github-actions-pytest.yml your_project/.github/workflows/test.yml
cp ci/pre-commit-config.yaml your_project/.pre-commit-config.yaml

# 4. Add pytest config to your pyproject.toml (or copy ours as a starting point)
cat pyproject.toml

# 5. Run the example tests to verify everything works
pytest examples/ -v

Table of Contents

Guides

1. [Pytest Mastery Guide](guides/pytest-mastery-guide.md) — Architecture, fixtures deep-dive, scopes, parametrization, markers, plugin system, conftest layering

2. [Fixtures & Factories](guides/fixtures-and-factories.md) — Fixture patterns, test-data builders, deterministic fake data, database/session fixtures

3. [Mocking Patterns](guides/mocking-patterns.md) — unittest.mock, monkeypatch, patching strategies, autospec, time freezing, HTTP response mocking

4. [Property-Based Testing](guides/property-based-testing.md) — Hypothesis strategies, stateful testing, shrinking, integrating with pytest

5. [CI Integration](guides/ci-integration.md) — GitHub Actions matrix builds, coverage gates, xdist parallelization, flaky test detection

Source Modules

  • [testing_toolkit/factories.py](src/testing_toolkit/factories.py) — Deterministic fake data generators and model factories (stdlib only)
  • [testing_toolkit/fixtures.py](src/testing_toolkit/fixtures.py) — Reusable pytest fixtures: temp dirs, frozen clock, fake env, in-memory store
  • [testing_toolkit/mocks.py](src/testing_toolkit/mocks.py) — Mock helpers, spy objects, fake HTTP client with response recording
  • [testing_toolkit/assertions.py](src/testing_toolkit/assertions.py) — Custom assertion helpers with rich failure messages
  • [testing_toolkit/builders.py](src/testing_toolkit/builders.py) — Fluent test-data builders with chainable API

Examples

  • [test_api_example.py](examples/test_api_example.py) — Full API test suite demonstrating fixtures, mocks, parametrization
  • [test_database_example.py](examples/test_database_example.py) — Database testing with transactions, rollback fixtures, factory data
  • [test_property_based_example.py](examples/test_property_based_example.py) — Property-based tests with Hypothesis
  • [example_conftest.py](examples/example_conftest.py) — Annotated conftest showing layered fixture architecture

CI & Config

... continues with setup instructions, usage examples, and more.

📄 Code Sample .py preview

examples/example_conftest.py""" Annotated example conftest demonstrating layered fixtures. This file shows how to structure a production conftest.py with: - Session-scoped expensive fixtures (database, connections) - Module-scoped configuration fixtures - Function-scoped isolation fixtures (fresh state per test) - Autouse fixtures for universal behaviors - Custom markers and CLI options - Conditional fixture behavior based on environment Copy this to your project's tests/conftest.py and adapt as needed. """ import os import sys import time import logging import sqlite3 from pathlib import Path from datetime import datetime, timezone import pytest # --------------------------------------------------------------------------- # Path Setup: Make the toolkit importable in examples # --------------------------------------------------------------------------- # Add the src directory to the path so tests can import the toolkit sys.path.insert(0, str(Path(__file__).parent.parent / "src")) # --------------------------------------------------------------------------- # Custom CLI Options # --------------------------------------------------------------------------- def pytest_addoption(parser): """Register custom command-line options for test configuration. Usage:
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