writting test fix type timestamp
writting test fix type timestamp

seagoat/mining,AndrzejR/mining,AndrzejR/mining,avelino/mining,seagoat/mining,mining/mining,jgabriellima/mining,chrisdamba/mining,mining/mining,mlgruby/mining,avelino/mining,mlgruby/mining,mlgruby/mining,jgabriellima/mining,chrisdamba/mining