public function testWithBody()
{
$param = Mockery::mock('Psr\\Http\\Message\\StreamInterface');
$this->responseMock->shouldReceive('withBody')->andReturn($this->returnValue);
$sparkpostResponse = new SparkPostResponse($this->responseMock);
$this->assertEquals($this->responseMock->withBody($param), $sparkpostResponse->withBody($param));
}