This tests are looking for regressions, no new features are added by this patch Drop your phpunit environment (php admin/tool/phpunit/cli/util.php --drop) You SHOULD NOT see any warning, error or debugging message and the process SHOULD finish well Install your phpunit environment (php admin/tool/phpunit/cli/util.php --install) You SHOULD NOT see any warning, error or debugging message and the process SHOULD finish well Run the phpunit diagnostic tool (php admin/tool/phpunit/cli/util.php --diag) You SHOULD NOT see any text You SHOULD NOT see any warning, error or debugging message and the process SHOULD finish well Build phpunit.xml (php admin/tool/phpunit/cli/util.php --buildconfig) You SHOULD NOT see any warning, error or debugging message and the process SHOULD finish well Verify that you can not run phpunit in two different CLIs at the same time Open two CLI and cd to your dirroot Run "phpunit" on one of them (you don't need to run the whole suit, filter if you don't want to wait that much) Before the tests finishes run "phpunit" in the other CLI You SHOULD see the following text: "Waiting for other test execution to complete..." When the first CLI phpunit command ends the second CLI phpunit command SHOULD begin You SHOULD not see any error, warning or debugging message anywhere