exception

exceptionTest.sc

import net.liftweb.common.{Box, Empty, Failure, Full}
import net.liftweb.util.Helpers.tryo

//val option: Option[Null] = Option(null)

val box1 = Full(null)
val box2 = Full("")
val box3 = Empty
val box4 = None
val box5 = Failure("hongwei")

box3.isEmpty

val option1: Option[Null] = Option(null)
val option2 = Empty
option1.isEmpty
option2.isEmpty


val full = Full {new RuntimeException("123")}
full.get

//1/0


1 Empty--> error message
isgoodtest <- Empty ?~ ErrorMessages.InvalidJsonFormat  ---> Failture(OBP-10001: Incorrect json format.") ----> "error": "OBP-10001: Incorrect json format."
the same as:
  isgoodtest <- Failure(ErrorMessages.InvalidJsonFormat)  ---> Failture(OBP-10001: Incorrect json format.") ----> "error": "OBP-10001: Incorrect json format."


2 Empty --> correct
  isgoodtest <- tryo{Empty} ?~ ErrorMessages.InvalidJsonFormat   ----> correct
same as :
  isgoodtest <- Full(Empty) ?~ ErrorMessages.InvalidJsonFormat   ----> correct

3 Exception ->error message
isgoodtest <- tryo {1/0} ?~ ErrorMessages.InvalidJsonFormat  ---> Failture(OBP-10001: Incorrect json format.") ----> "error": "OBP-10001: Incorrect json format."

4 Exception -->Exception
  isgoodtest <- Full(1/0) ?~ ErrorMessages.InvalidJsonFormat  ---> Exception, not clear message