Test to count number of Characters

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1

Hi,

I need a test to count number of characters for a specific field in the request

i have an IP address in the Request which is 19 Characters, i just want to know how to create a test counting the individual characters.

My request body:

details": {
“client_reference”: “xxxxxx”,
“ip_address”: “192.192.192.192.192”,

Any Idea’s??