Tips to Speed up Your Phpunit Tests

Last updated 2 years ago by Tim MacDonald


Having a fast test suite can be just as important as having a fast application. As a developer, getting feedback quickly about the state of your code allows for a much quicker development turnaround. Here we are going to run through some tips you can implement today to make your tests run faster.

The example test suites have been made intentionally slow to simulate a broader set of tests and also to emphasize the improvements possible. Your real-world mileage may vary.


This package is a PHPUnit extension that runs your test suite, but instead of running each test case in series (one after the other) like PHPUnit does, it can utilize your machine’s CPU cores to run them in parallel.

To get started with ParaTest you will want to install it as a dev dependency via composer.

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