[Magento\FunctionalTestingFramework\Exceptions\TestFrameworkException] Error HTTP response code: 403 Response:Given command not found valid in Magento CLI Command list.

[keoko]

When running MFTF tests that calls magento Cli they may fail with the exception [Magento\FunctionalTestingFramework\Exceptions\TestFrameworkException] Error HTTP response code: 403 Response:Given command not found valid in Magento CLI Command list.. This is related to an issue with Nix package php-with-extensions that do not set properly the constant PHPBIN_DIR.

As a workaround, you can hardcode the path to the correct php binary file in dev/tests/acceptance/utils/command.php

Instead of:

$php = PHP_BINDIR ? PHP_BINDIR . '/php' : 'php';

use:

$php = 'php';