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In my Django projects I use sqlite database to run tests. Since it uses only memory, it's much faster than MySQL, but it's still not fast enough. During tests, only one of 4 processors is used, and not much memory is consumed. So, I'd like to have 4 sqlite databases in memory to run 4 tests in parallel.
Has anyone tried this?
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So you can use the following command to execute the tests in parallel. You can adjust the number of processes either by providing it as the option's value, e.g. --parallel=4, or by setting the DJANGO_TEST_PROCESSES environment variable.
Running tests in parallelBy default, Django runs tests sequentially. However, whether you're running tests locally or in your CI (Github Actions, Jenkins CI, etc) more often than not you'll have multiple cores.
Learn Pytest From Scratch By default, pytest runs tests in sequential order. In a real scenario, a test suite will have a number of test files and each file will have a bunch of tests. This will lead to a large execution time. To overcome this, pytest provides us with an option to run tests in parallel.
Since Django 1.9 it's possible to run the tests in parallel by Django with its built-in unit-test features.
Django Docs: https://docs.djangoproject.com/en/3.0/ref/django-admin/#cmdoption-test-parallel
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You can use a parallel test runner for Django and Twisted described here: http://www.tomaz.me/2011/04/03/making-django-and-twisted-tests-faster.html (the source lives here https://github.com/Kami/parallel-django-and-twisted-test-runner - link at the end of the post). You can use it as described in Django docs on testing.
There is also a nose parallel test runner.
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