Jonathan Desrosiers faac54e8d0 Build/Test Tools: Backport the local Docker environment to the 4.9 branch.
This commit introduces the Docker-based local WordPress development environment to the 4.9 branch and converts the Travis test jobs to utilize this environment for easier and more consistent testing.

Until existing blockers with the PHP 5.2 Docker container can be solved, the PHP 5.2 test job will remain using the Travis `precise` image.

Merges [45745,45762,45783-45784,45800,45819,45885,46320,46999,47225,47912,48121,49335,49358,49360,49362] to the 4.9 branch.
See #48301, #47767.

git-svn-id: https://develop.svn.wordpress.org/branches/4.9@49530 602fd350-edb4-49c9-b593-d223f7449a82
2020-11-06 17:32:00 +00:00
..

The short version:

1. Create a clean MySQL database and user.  DO NOT USE AN EXISTING DATABASE or you will lose data, guaranteed.

2. Copy wp-tests-config-sample.php to wp-tests-config.php, edit it and include your database name/user/password.

3. $ svn up

4. Run the tests from the "trunk" directory:
   To execute a particular test:
      $ phpunit tests/phpunit/tests/test_case.php
   To execute all tests:
      $ phpunit

Notes:

Test cases live in the 'tests' subdirectory.  All files in that directory will be included by default.  Extend the WP_UnitTestCase class to ensure your test is run.

phpunit will initialize and install a (more or less) complete running copy of WordPress each time it is run.  This makes it possible to run functional interface and module tests against a fully working database and codebase, as opposed to pure unit tests with mock objects and stubs.  Pure unit tests may be used also, of course.

Changes to the test database will be rolled back as tests are finished, to ensure a clean start next time the tests are run.

phpunit is intended to run at the command line, not via a web server.