Parrallel testing with Python, Cucumber, and Docker Compose
Setting Up Parallel Testing with Python, Cucumber, and Docker Compose
In this guide, we will walk you through the steps to set up parallel testing for your Python-based test suite using Cucumber as the test framework and Docker Compose for managing a Selenium Grid. Parallel testing allows you to distribute and run tests concurrently, improving test execution speed.
Prerequisites
- Python installed on your system.
- Docker and Docker Compose installed.
Steps
1. Set Up Selenium Grid with Docker Compose
Create a docker-compose.yml file to define your Selenium Grid configuration with multiple nodes (e.g., Chrome, Firefox). Here’s a sample docker-compose.yml:
version: '3'
services:
chrome:
image: selenium/node-chrome:4.13.0-20231004
# Configuration for Chrome node
firefox:
image: selenium/node-firefox:4.13.0-20231004
# Configuration for Firefox node
selenium-hub:
image: selenium/hub:4.13.0-20231004
# Configuration for Selenium Hub
Copy code
docker-compose up -d
2. Install Required Libraries
Install the necessary Python libraries for your project using pip. For example, you may need pytest, pytest-bdd, and selenium.
3. Write Parallel Test Scenarios
Write your test scenarios using Cucumber and pytest-bdd. Organize your tests into separate feature files or scenarios that you want to run in parallel.
4. Configure Parallel Test Execution
For pytest with pytest-xdist: Install the pytest-xdist plugin using pip:
5. Create a pytest configuration file (e.g., pytest.ini) with the following content to specify parallelization options:
[pytest]
addopts = -n auto
6. Execute Parrallel tests
See gitlab project
https://gitlab.com/learnautomatedtesting/paralleltestingpythonseleniumdocker/-/tree/withoutAllure