This class provides functionality for serializing a RequestInterface instance
to a string, as well as the reverse operation of creating a Request instance
from a string/stream representing a message.
public function testFromStreamThrowsExceptionWhenStreamIsNotSeekable()
{
$this->setExpectedException('InvalidArgumentException');
$stream = $this->getMockBuilder('Psr\\Http\\Message\\StreamInterface')->getMock();
$stream->expects($this->once())->method('isReadable')->will($this->returnValue(true));
$stream->expects($this->once())->method('isSeekable')->will($this->returnValue(false));
Serializer::fromStream($stream);
}
