PhpParser\PrettyPrinterTest::testPrettyPrintExpr PHP Méthode

    public function testPrettyPrintExpr() {
        $prettyPrinter = new Standard;
        $expr = new Expr\BinaryOp\Mul(
            new Expr\BinaryOp\Plus(new Expr\Variable('a'), new Expr\Variable('b')),
            new Expr\Variable('c')
        );
        $this->assertEquals('($a + $b) * $c', $prettyPrinter->prettyPrintExpr($expr));

        $expr = new Expr\Closure(array(
            'stmts' => array(new Stmt\Return_(new String_("a\nb")))
        ));
        $this->assertEquals("function () {\n    return 'a\nb';\n}", $prettyPrinter->prettyPrintExpr($expr));
    }