How to verify array response values in postman test? - postman

Question

Expected Test Scenario: Need to validate the array response "Values" for the "Key: id".
I am using the test code:
pm.test("Your test name", function () {
var jsonData = pm.response.json();
pm.expect(jsonData.id).to.contains(16);
});
Getting the error:
AssertionError: object tested must be an array, a map, an object, a set, a string, or a weakset, but undefined given.
Response Body:
[
{
"id": 2,
"Name": "Hello",
"Country": "India"
},
{
"id": 4,
"Name": "thankyou",
"Country": "UK"
},
{
"id": 16,
"Name": "how are you",
"Country": "USA"
},
{
"id": 18,
"Name": "Good morning",
"Country": "Italy"
},
{
"id": 25510,
"Name": "Bonjour",
"Country": "France"
}
]
Anyone could help me in sorting out this please.

Answer 1

The response is not a JSON object but JSON array.
pm.response.json() will have you full json which is in the form :
[ {}, {} ]
so the JSON object with id 16 is the 3rd element in the array so first call jsonData[3] and then get id in it.
But still you will get error because what you are getting is a "integer" so cannot use contains with it . Use equal instead
pm.test("Your test name", function () {
var jsonData = pm.response.json();
pm.expect(jsonData[2].id).to.equal(16);
});
or if you want to use contains instead , then get response as text using pm.response.text():
pm.test("Your test name", function () {
var jsonData = pm.response.text();
pm.expect(jsonData).to.contains(16);
});