public function testNameLabelForFunction() {
$template = '{{ ☃() }}';
$lexer = new Twig_Lexer(new Twig_Environment());
$stream = $lexer
->tokenize($template);
$stream
->expect(Twig_Token::VAR_START_TYPE);
$this
->assertSame('☃', $stream
->expect(Twig_Token::NAME_TYPE)
->getValue());
}