Name	Name	Last commit message	Last commit date
parent directory ..
data	data
includes	includes
tests	tests
README.md	README.md
multisite.xml	multisite.xml
wp-mail-real-test.php	wp-mail-real-test.php

README.md

PHPUnit Tests

PHPUnit is the official testing framework chosen by the core team to test PHP code.

For more information, please review the relevant Core Handbook pages: