php syntax check test

php_syntax_check.php

<?php

/**
 * Test_PHP_Syntax
 *
 * @group App
 * @uses TestCase
 *
 */
class SyntaxTest extends PHPUnit_Framework_TestCase
{

    public $TARGET_DIR = array(
        './lib'
    );

    public function test_php_syntax()
    {
        $file_list = array();
        foreach( $this->TARGET_DIR as $target_dir ){

            $file_list = $this->search_file_list( $target_dir );

            foreach( $file_list as $file) {

                system("php -l $file >/dev/null 2>&1" , $exit_status );

                $this->assertEquals( $exit_status , 0 , "$file syntax OK");
            }
        }
    }

    private function search_file_list($target_dir)
    {
        $iterator = new RecursiveDirectoryIterator( $target_dir );
        $iterator = new RecursiveIteratorIterator($iterator);

        $file_list = array();
        foreach ($iterator as $fileinfo) { // $fileinfoはSplFiIeInfoオブジェクト
            if ($fileinfo->isFile() && $fileinfo->getExtension() === "php") {
                $file_list[] = $fileinfo->getPathname();
            }
        }

        return $file_list;
    }

}