Sub : how to do regular expression assertions for variable elements in an array

[jaya_kiran]

Description : Trying to write an assertion for fields code and unit.
code can be an integer or empty
and unit can be a string or empty.
i.e code and unit has no fixed values.
And have to assert based on assertion using regex.
the assertion have to match all the object properties in the response array.

[
{
"code": "0",
"unit": "meter"
},
{
"code": "1",
"unit": "meter"
},
{
"code": "2",
"unit": "meter"
},
{
"code": "",
"unit": ""
}
]

[richie]

Hey @jaya_kiran,

I can do this, but only in 2 separate assertions, not 1 assertion.
One of the real groovy scripters on the forum (@HimanshuTayal, @nmrao, @ChrisA) might be better placed to answer. I'll check tomorrow to see yours and their responses and go from there.

Cheers

Rich

[jaya_kiran]

sure, 2 assertions are fine for me. 

[jaya_kiran]

need solution thanks.

[ChrisA · Accepted solution]

Hi,

Add a script assertion to the test step of interest.

The below will get you started, but be warned, it won't work first time.  You will need to tailor this to your needs.

import groovy.json.JsonSlurper
import groovy.json.*
import java.util.regex.*

// User Json Slurper to get the JSON from the response.
def jsonSlurper = new JsonSlurper().parseText(messageExchange.response.responseContent)

// Just log how many items to check.  If you get an error here, replace message with 
// root node of interest in the response.
log.info("Checking ${jsonSlurper.message.size()} items in response.");

// Let's iterate over the array of items...
jsonSlurper.message.each{

	// Have a look at the current items
	log.info("Item. Code ${it.code}.  Unit ${it.unit}.);
	
	// Check it.code for numeric only.
	if (it.code.matches("[0-9]+") && it.code.length() > 0) {
		log.info("Code ${it.code} passes");
	} else {
		log.info("Code ${it.code} fails")
	}

	// Check it.unit for lowercase chars only.
	if (it.unit.matches("[a-z]+") && it.unit.length() > 0) {
		log.info("Code ${it.unit} passes");
	} else {
		log.info("Code ${it.unit} fails")
	}
	// You decide how to report failure.  E.g. dump to a file
	// or assert.
	
}

[jaya_kiran]

thank you for the response.