php-parser/test/PHPParser/Tests/codeTest.php

<?php

class PHPParser_Tests_codeTest extends PHPUnit_Framework_TestCase
{
    /**
     * @dataProvider provideTestCode
     */
    public function testCode($name, $code, $dump) {
        $parser = new PHPParser_Parser(new PHPParser_Lexer_Emulative);
        $dumper = new PHPParser_NodeDumper;

        $stmts = $parser->parse($code);
        $this->assertEquals(
            $this->canonicalize($dump),
            $this->canonicalize($dumper->dump($stmts)),
            $name
        );
    }

    public function provideTestCode() {
        return $this->getTests('test');
    }

    /**
     * @dataProvider provideTestCodeFail
     */
    public function testCodeFail($name, $code, $msg) {
        $parser = new PHPParser_Parser(new PHPParser_Lexer_Emulative);

        try {
            $parser->parse($code);

            $this->fail(sprintf('"%s": Expected PHPParser_Error', $name));
        } catch (PHPParser_Error $e) {
            $this->assertEquals($msg, $e->getMessage(), $name);
        }
    }

    public function provideTestCodeFail() {
        return $this->getTests('test-fail');
    }

    protected function getTests($ext) {
        $it = new RecursiveDirectoryIterator(dirname(__FILE__) . '/../../code');
        $it = new RecursiveIteratorIterator($it, RecursiveIteratorIterator::LEAVES_ONLY);
        $it = new RegexIterator($it, '(\.' . preg_quote($ext) . '$)');

        $tests = array();
        foreach ($it as $file) {
            // read file
            $fileContents = file_get_contents($file);

            // evaluate @@{expr}@@ expressions
            $fileContents = preg_replace_callback(
                '/@@\{(.*?)\}@@/',
                array($this, 'evalCallback'),
                $fileContents
            );

            // parse sections
            $parts = array_map('trim', explode('-----', $fileContents));

            // first part is the name
            $name = array_shift($parts);

            // multiple sections possible with always two forming a pair
            foreach (array_chunk($parts, 2) as $chunk) {
                $tests[] = array($name, $chunk[0], $chunk[1]);
            }
        }

        return $tests;
    }

    protected function canonicalize($str) {
        // trim from both sides
        $str = trim($str);

        // normalize EOL to \n
        $str = str_replace(array("\r\n", "\r"), "\n", $str);

        // trim right side of all lines
        return implode("\n", array_map('rtrim', explode("\n", $str)));
    }

    protected function evalCallback($matches) {
        return eval('return ' . $matches[1] . ';');
    }
}