[PhpUnitBridge] Enable a maximum PHPUnit version to be set via SYMFONY_MAX_PHPUNIT_VERSION

Author: stevegrunwell

bin/simple-phpunit.php

@@ -113,6 +113,12 @@
     $PHPUNIT_VERSION = '4.8';
 }
 
+$MAX_PHPUNIT_VERSION = $getEnvVar('SYMFONY_MAX_PHPUNIT_VERSION', false);
+
+if ($MAX_PHPUNIT_VERSION && version_compare($MAX_PHPUNIT_VERSION, $PHPUNIT_VERSION, '<')) {
+    $PHPUNIT_VERSION = $MAX_PHPUNIT_VERSION;
+}
+
 $PHPUNIT_REMOVE_RETURN_TYPEHINT = filter_var($getEnvVar('SYMFONY_PHPUNIT_REMOVE_RETURN_TYPEHINT', '0'), \FILTER_VALIDATE_BOOLEAN);
 
 $COMPOSER_JSON = getenv('COMPOSER') ?: 'composer.json';