public function testApiSeekAndTell_SetsAndGetsStreamOffset()
{
$stream = $this->createStreamMock();
$resource = $stream->getResource();
fwrite($resource, "0123456789");
$this->assertEquals(10, $stream->tell());
$stream->seek(5, SEEK_SET);
$this->assertEquals(5, $stream->tell());
$stream->seek(-2, SEEK_END);
$this->assertEquals(8, $stream->tell());
$stream->seek(-2, SEEK_CUR);
$this->assertEquals(6, $stream->tell());
}