PhpParser\NodeDumperTest::testDumpWithPositions PHP Method

    public function testDumpWithPositions()
    {
        $parser = (new ParserFactory())->create(ParserFactory::ONLY_PHP7, new Lexer(['usedAttributes' => ['startLine', 'endLine', 'startFilePos', 'endFilePos']]));
        $dumper = new NodeDumper(['dumpPositions' => true]);
        $code = "<?php\n\$a = 1;\necho \$a;";
        $expected = <<<'OUT'
array(
    0: Expr_Assign[2:1 - 2:6](
        var: Expr_Variable[2:1 - 2:2](
            name: a
        )
        expr: Scalar_LNumber[2:6 - 2:6](
            value: 1
        )
    )
    1: Stmt_Echo[3:1 - 3:8](
        exprs: array(
            0: Expr_Variable[3:6 - 3:7](
                name: a
            )
        )
    )
)
OUT;
        $stmts = $parser->parse($code);
        $dump = $dumper->dump($stmts, $code);
        $this->assertSame($this->canonicalize($expected), $this->canonicalize($dump));
    }