pytest-docker-service 0.2.0

pytest plugin to start docker container

pytest-docker-service

pytest-docker-service is a pytest plugin for writing integration tests based on docker containers.

The plugin provides a fixtures factory: a configurable function to register fixtures.

The package has been developed and tested with Python 3.10, and pytest version 6.2.

Installation

Install pytest-docker-service with pip.

python -m pip install pytest-docker-service

Usage

You just have to create a fixture in your confest.py or in individual test modules, using the docker_container helper. Fixture is created with the scope provided through the scope parameter. Other parameters are wrappers around the docker-py API (https://docker-py.readthedocs.io/en/stable/).

import requests
from pytest_docker_service import docker_container

container = docker_container(
    scope="session",
    image_name="kennethreitz/httpbin",
    ports={"80/tcp": None},
)


def test_status_code(container):
    port = container["port_map"]["80/tcp"]
    host = container["host"]

    status = 200
    response = requests.get(f"http://{host}:{port}/status/{status}")

    assert response.status_code == status

Of course, if you want to build your own docker image, it is possible. Just set the build_path parameter pointing to the directory containing the Dockerfile.

container = docker_container(
    scope="session",
    image_name="my-image",
    build_path="path/to/dockerfile/directory"
    ports={"80/tcp": None},
)


def test_status_code(container):
    port = container["port_map"]["5432/tcp"]
    host = container["host"]

    ...