public function testGetMetadataReturnsNullIfNoDataExistsForKey()
{
$this->tmpnam = tempnam(sys_get_temp_dir(), 'PHLY');
$resource = fopen($this->tmpnam, 'r+');
$this->stream->attach($resource);
$this->assertNull($this->stream->getMetadata('TOTALLY_MADE_UP'));
}