Imbo\Model\Image::setOriginalChecksum PHP Method

    public function setOriginalChecksum($checksum)
    {
        $this->originalChecksum = $checksum;
        return $this;
    }

 public function testCanSetAndGetTheOriginalChecksum()
 {
     $checksum = md5(__FILE__);
     $this->assertSame($this->image, $this->image->setOriginalChecksum($checksum));
     $this->assertSame($checksum, $this->image->getOriginalChecksum());
 }