public function testChangingUnderlyingStreamUpdatesSizeAndStream()
{
$size = filesize(__FILE__);
$s = fopen(__FILE__, 'r');
$this->body->setStream($s, $size);
$this->assertEquals($size, $this->body->getSize());
$this->assertEquals($size, $this->decorated->getSize());
$this->assertSame($s, $this->body->getStream());
$this->assertSame($s, $this->decorated->getStream());
}
