Saving responses in Postman - Test Execution Trace

Test Overview

This test sends a GET request to an API endpoint and saves the response body into a Postman environment variable. It then verifies that the response status is 200 and that the saved response matches the actual response.

Test Code - Postman

Postman

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

pm.test("Save response body to environment variable", function () {
    let responseBody = pm.response.text();
    pm.environment.set("savedResponse", responseBody);
    pm.expect(pm.environment.get("savedResponse")).to.eql(responseBody);
});

Execution Trace - 5 Steps

Step	Action	System State	Assertion	Result
1	Send GET request to the API endpoint	Postman sends the request and waits for response	-	PASS
2	Check that response status code is 200	Response received with status code 200	Verify pm.response.to.have.status(200)	PASS
3	Extract response body as text	Response body is available as string	-	PASS
4	Save response body to environment variable 'savedResponse'	Environment variable 'savedResponse' is set with response text	-	PASS
5	Verify saved environment variable matches response body	Environment variable value equals response body text	pm.expect(pm.environment.get('savedResponse')).to.eql(responseBody)	PASS

Failure Scenario

Failing Condition: Response status is not 200 or environment variable is not set correctly

Execution Trace Quiz - 3 Questions

What does the test verify first after sending the request?

A That the response body is empty

B That the environment variable is deleted

C That the response status code is 200

D That the request method is POST

Key Result

Always verify the response status before saving data, and confirm saved variables match the actual response to avoid false positives.