Building Resilient API Test Automation: Pytest + Docker Integration Guide

A robust API testing framework requires both maintainable code architecture and consistent test environments. This technical guide demonstrates integrating Pytest with Docker to create reliable API test automation.

Core Framework Architecture

├── api_tests/
│   ├── conftest.py
│   ├── test_users.py
│   ├── test_orders.py
│   └── test_products.py
├── framework/
│   ├── api_client.py
│   ├── config.py
│   ├── data_generator.py
│   └── validators.py
├── docker/
│   ├── Dockerfile
│   └── docker-compose.yml
├── requirements.txt
└── pytest.ini

# framework/api_client.py
import requests
from typing import Dict, Any
from framework.config import Config

class APIClient:
    def __init__(self, base_url: str, headers: Dict[str, str] = None):
        self.base_url = base_url
        self.headers = headers or {}
        self.session = requests.Session()

    def get(self, endpoint: str, params: Dict[str, Any] = None) -> requests.Response:
        url = f"{self.base_url}{endpoint}"
        return self.session.get(url, params=params, headers=self.headers)

    def post(self, endpoint: str, payload: Dict[str, Any]) -> requests.Response:
        url = f"{self.base_url}{endpoint}"
        return self.session.post(url, json=payload, headers=self.headers)

    def…