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When making repeated updates to a document, the Tag Processor will end up copying the entire document once for every update. This can lead to catastrophic behavior in the worse case. However, when batch-applying updates it's able to copy chunks of the document in one thread and only end up copying the entire document once for the entire batch. Previously the Tag Processor has been eagerly applying udpates, but in this patch it defers applying those updates as long as is possible. Developed in https://github.com/WordPress/wordpress-develop/pull/6120 Discussed in https://core.trac.wordpress.org/ticket/60697 Follow-up to [55706], [56941], [57348]. Reviewed by swissspidy. Merges [57805] to the to the 6.5 branch. Props dmsnell, bernhard-reiter, jonsurrell, westonruter. Fixes #60697. git-svn-id: https://develop.svn.wordpress.org/branches/6.5@57815 602fd350-edb4-49c9-b593-d223f7449a82
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.