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This page is the top level page regarding all testing activities around the Moodle project. Testing is essential to make sure that developed code does what it is meant to do, without causing new problems.

Manual testing

Code testing

Code is tested as part of reviewing at some key parts of the Moodle development process.

  • Development - the developer of some code should test their own work on a wide variety of environments for correctness and performance
  • Peer review - developers often test each others work early in the development process
  • Integration reviews - Our integration team tests code weekly while they are evaluating suitability for integration into Moodle.

Integration functional testing

On Wednesday (all timezones) our Moodle HQ developers spend the day to manually test the functionality of all the issues that have been integrated that week. Developers submitting patches should always cover the patch with unit tests and/or Behat behavioural tests. Still, all issues are tested by a human and it is usually worth it.

QA testing

Volunteer testers from the Moodle community systematically try each feature in Moodle and test that it works in the current version of the Moodle code. These tests are repeated in series of cycles, usually 4 weeks before a major release, once all major features have landed.

For major theme changes, additional manual tests may be run.

Automated testing

Unit tests

Moodle 2.3 and later fully supports PHPUnit tests as part of the code. These are automated tests of very low-level code functionality that a developer should write as part of any new code.

Continuous integration testing

As soon as code is added to the integration repository, our continuous integration server tests the new code for:

  • Coding guidelines
  • PHPUnit tests
  • SimpleTest unit tests on older versions of Moodle
  • Detect unresolved merge conflicts
  • Compare databases upgraded from previous versions
  • Check the version.php is correct

A failure here notifies the integrators that the build has failed.

Regression testing

Every day, an automated build in a test server runs a large number of tests concerning key functions of Moodle, to make sure that everything still works and that some new fix in Moodle hasn't caused problems elsewhere.

These tests must pass completely before a new release can be made.

Moodle uses a sponsored version of BrowserStack for testing on multiple browsers.