public function testComment()
{
$dom = $this->html5->loadHTML('<!doctype html>
<html lang="en">
<body>
<div><!-- foo --></div>
</body>
</html>');
$stream = fopen('php://temp', 'w');
$r = new OutputRules($stream, $this->html5->getOptions());
$t = new Traverser($dom, $stream, $r, $this->html5->getOptions());
$list = $dom->getElementsByTagName('div');
$r->comment($list->item(0)->childNodes->item(0));
$this->assertEquals('<!-- foo -->', stream_get_contents($stream, -1, 0));
$dom = $this->html5->loadHTML('<!doctype html>
<html lang="en">
<body>
<div id="foo"></div>
</body>
</html>');
$dom->getElementById('foo')->appendChild(new \DOMComment('<!-- --> --> Foo -->'));
$stream = fopen('php://temp', 'w');
$r = new OutputRules($stream, $this->html5->getOptions());
$t = new Traverser($dom, $stream, $r, $this->html5->getOptions());
$list = $dom->getElementsByTagName('div');
$r->comment($list->item(0)->childNodes->item(0));
// Could not find more definitive guidelines on what this should be. Went with
// what the HTML5 spec says and what \DOMDocument::saveXML() produces.
$this->assertEquals('<!--<!-- --> --> Foo -->-->', stream_get_contents($stream, -1, 0));
}
