Assert null value in Json response using Groovy

Question

Trying to assert null value in JSON response. In my below groovy script, it should pass the assert as my Token has some value but it gives me error. I want when Token has null value then it should failed the assert.

{
   "ResponseCode": 1,
   "ResponseData": null,
   "Result":    {
      "LoginResult": 2,
      "Token": "244F5F16-EB3B-4A58-A784-AE55BF87EA53",
      "UserInformation": null
   }
}

Groovy script:

import groovy.json.JsonSlurper
def ResponseMessage = messageExchange.response.responseContent
def jsonSlurper = new JsonSlurper().parseText(ResponseMessage)
assert jsonSlurper.Token != null

It gives me error:

assert jsonSlurper.Token != null | | | | null false [Result:[LoginResult:2, Token:244F5F16-EB3B-4A58-A784-AE55BF87EA53, UserInformation:null], ResponseCode:1, ResponseData:null]

Opal Opal · Accepted Answer · 2017-08-02T07:49:43

You have invalid key path:

import groovy.json.JsonSlurper

def input = '''{
   "ResponseCode": 1,
   "ResponseData": null,
   "Result":    {
      "LoginResult": 2,
      "Token": "244F5F16-EB3B-4A58-A784-AE55BF87EA53",
      "UserInformation": null
   }
}'''

def jsonSlurper = new JsonSlurper().parseText(input)
assert jsonSlurper.Result.Token != null

It should be: jsonSlurper.Result.Token

Assert null value in Json response using Groovy

1 Answers