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Running Symfony Tests In Parallel

This repository aims to reflect code published in an article on the marmelab's blog.

This is a simple Symfony2 project with 2 tests (DemoControllerTest & SecondControllerTest).

Each one simulate a lot of tests with a pause of 5 seconds.

Running these tests the normal way :

$ time phpunit -c app/

real	0m10.443s
user	0m0.379s
sys	0m0.050s

Running these tests in parallel :

$ time sh tests.sh

real	0m6.427s
user	0m0.084s
sys	0m0.100s

Why Using Docker To Run Your Tests ?

This example is not explicit, you can run these tests in parallel only with GNU Parallel.

However your tests can use a storage engine, a search index or other dependencies. In this case when you alter data in a test, this data should not be changed in other tests. Docker allows to run each test in isolated containers so other tests aren't affected.

Installation

composer install

Windows/OSX users

Docker only support Linux LXC (for now) so we should run a virtual machine :

vagrant up
vagrant ssh

cd /vagrant

Running tests

sh tests.sh