This project is under heavy development
A Test Runner for Django that runs tests in parallel.
The --parallel option for running tests was added in Django 1.9, described as follows:
Each process gets its own database. You must ensure that different test cases don’t access the same resources. For instance, test cases that touch the filesystem should create a temporary directory for their own use.
It's such a fantastic feature and well done, but what if you have a code base prior to Django 1.9?
It's not as easy because it doesn't depend only on building a new test runner or backporting some existing work.
Tests needs to be written knowing they are running in parallel and they may collide with other tests.
To prevent this, we need isolation. Docker.
Develop a test runner that will run tests in parallel inside an isolated environment (Docker), to avoid collisions.
pip install https://github.com/caioariede/django-paralleltests/archive/master.zip
You must have a Dockerfile in place to generate the image to be used.
A Dockerfile example:
FROM python:2.7
ENV PYTHONUNBUFFERED 1
ENV PYTHONPATH .:$PYTHONPATH
RUN mkdir /code
WORKDIR /code
ADD . /code/
RUN pip install -r requirements.txt
With this, you can generate a image with the following command:
docker build -t paralleltest .
Right now, the image name is hardcoded to paralleltest:latest.
Set TEST_RUNNER to paralleltests.runner.parallel.ParallelRunner in your settings.py.
Then run your tests as usual.