Condition block in Postman - Test Execution Trace

Test Overview

This test checks if the API response status is 200 and then verifies the presence of a specific field in the JSON body using a condition block in Postman test script.

Test Code - Postman

Postman

pm.test("Status code is 200", function () {
    pm.response.to.have.status(200);
});

if (pm.response.code === 200) {
    pm.test("Response has userId field", function () {
        var jsonData = pm.response.json();
        pm.expect(jsonData).to.have.property('userId');
    });
}

Execution Trace - 5 Steps

Step	Action	System State	Assertion	Result
1	Test starts	Postman app is open with the API request ready	-	PASS
2	Sends API request	Request sent to server, waiting for response	-	PASS
3	Receives response with status 200	Response body contains JSON data with userId field	pm.response.to.have.status(200)	PASS
4	Checks if response code is 200 (condition block)	Condition true, enters block to check JSON body	-	PASS
5	Verifies response JSON has 'userId' property	JSON body includes userId field	pm.expect(jsonData).to.have.property('userId')	PASS

Failure Scenario

Failing Condition: Response status is not 200 or JSON body lacks 'userId' field

Execution Trace Quiz - 3 Questions

What does the condition block check before running the second test?

A If the response status code is 200

B If the response body is empty

C If the userId field is missing

D If the request method is POST

Key Result

Using a condition block in Postman tests helps avoid errors by running certain checks only when the response status is as expected.