public function testStreamPosition()
{
$handle = fopen('php://temp', 'w+');
$stream = new Stream($handle);
$this->assertEquals(0, $stream->tell());
$stream->write('foo', strlen('foo'));
$this->assertEquals(3, $stream->tell());
$stream->seek(1);
$this->assertEquals(1, $stream->tell());
$this->assertSame(ftell($handle), $stream->tell());
}