wordpress-develop/tests/phpunit
Sergey Biryukov 05f28947e7 Media: Check the return type of _get_cron_array() in WP_Media_List_Table::prepare_items().
The following warnings could, in very select circumstances, be shown:
{{{
// PHP 8.0 and higher:
Warning: foreach() argument must be of type array|object, bool given

// PHP 5.6 – 7.4
Warning: Invalid argument supplied for foreach()
}}}

In `WP_Media_List_Table::prepare_items()`, the cron info array is retrieved via a call to `_get_cron_array()`, but as the documentation (correctly) states, the return type of that function is `array|false`, where `false` is returned for a virgin site, with no cron jobs scheduled yet.

However, no type check is done on the return value, and the method just blindly continues by using it in a `foreach`.

Fixed by adding validation for the returned value from `_get_cron_array()` and only running the `foreach` when the returned value is an array.

Reference: [https://developer.wordpress.org/reference/functions/_get_cron_array/ WordPress Developer Resources: _get_cron_array()]

Follow-up to [48417].

Props jrf, hellofromTonya, mukesh27.
Fixes #53949.

git-svn-id: https://develop.svn.wordpress.org/trunk@51638 602fd350-edb4-49c9-b593-d223f7449a82
2021-08-19 12:43:03 +00:00
..
data Tests: Fix failing i18n unit tests for block metadata 2021-08-11 10:37:17 +00:00
includes Tests: Add unit tests for the wp_nonce_ays() function. 2021-08-13 14:00:05 +00:00
tests Media: Check the return type of _get_cron_array() in WP_Media_List_Table::prepare_items(). 2021-08-19 12:43:03 +00:00
build.xml Coding Standards: Replace spaced indentation sections of phpunit.xml.dist, multisite.xml, and build.xml with tabs. 2019-01-28 17:20:06 +00:00
multisite.xml Code Modernization: Rename the readonly() function to wp_readonly(). 2021-08-09 17:19:21 +00:00
README.txt
wp-mail-real-test.php Code Modernization: Replace dirname( __FILE__ ) calls with __DIR__ magic constant. 2020-02-06 06:31:22 +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.