Sokil\Mongo\GridFsFileTest::testGetMd5Checksum PHP Method

    public function testGetMd5Checksum()
    {
        $id = $this->gridFs->storeBytes('somebinarydata');
        $file = $this->gridFs->getFileById($id);
        $this->assertEquals(md5('somebinarydata'), $file->getMd5Checksum());
    }