Wordpress/tests/phpunit
Boone Gorges 5fef526cca Taxonomy: Better error handling when fetching object terms from cache.
Since [37573], `get_object_term_cache()` has expected term IDs to be
stored in the taxonomy relationship cache. The function would then
reach directly into the 'terms' cache to fetch the data corresponding
to a given term, before returning a `WP_Term` object. This caused
problems when, for one reason or another, term data was cached
inconsistently:

* If the 'terms' cache is empty for a given term ID, despite the earlier call to `_prime_term_caches()`, `get_term()` would return an error object.
* If the array of cached term IDs contains an invalid ID, `get_term()` would return an error object.

We avoid these errors by no longer touching the 'terms' cache directly,
but running term IDs through `get_term()` and allowing that function to
reference the cache (and database, as needed). If `get_term()` returns
an error object for any of the cached term IDs, `get_object_term_cache()`
will return that error object alone. This change ensures that upstream
functions, like `get_the_terms()`, return `WP_Error` objects in a
predictable fashion.

Props dd32, michalzuber.
Fixes #37291.

git-svn-id: https://develop.svn.wordpress.org/trunk@38776 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-11 01:55:58 +00:00
..
data Themes: Account for uppercase chars when managing themes. 2016-10-03 18:12:57 +00:00
includes Tests: Reset post-related globals after each test. 2016-09-30 03:15:36 +00:00
tests Taxonomy: Better error handling when fetching object terms from cache. 2016-10-11 01:55:58 +00:00
build.xml Move PHPUnit tests into a tests/phpunit directory. 2013-08-29 18:39:34 +00:00
multisite.xml OEmbed: add unit tests. @group external-oembed is not run by default. 2016-08-30 18:54:53 +00:00
README.txt Update tests/README.txt to reflect the new tests directory structure. props jdgrimes. fixes #25133. 2013-08-31 13:42:56 +00:00
wp-mail-real-test.php Initialise $_SERVER['SERVER_NAME'] during the test bootstrap to avoid individual tests having to do it. 2015-10-21 23:51:45 +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.