function testAddReadStream()
{
$h = fopen('php://temp', 'r+');
fwrite($h, 'hello world');
rewind($h);
$loop = new Loop();
$result = null;
$loop->addReadStream($h, function () use($h, $loop, &$result) {
$result = fgets($h);
$loop->removeReadStream($h);
});
$loop->run();
$this->assertEquals('hello world', $result);
}
