Why automated assertions validate responses in Postman - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if the response status is 200.

Postman

pm.test("Status code is 200", function () { pm.response.to.have.status([1]); });

Drag options to blanks, or click blank then click option'

A201

B500

C404

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong status code like 201 or 404.

Forgetting to put the status code inside the assertion.

The status code 200 means the request was successful. The assertion checks this to validate the response.

2fill in blank

medium

Complete the code to assert the response body contains the key 'success'.

Postman

pm.test("Response has success key", function () { pm.expect(pm.response.json()).to.have.property([1]); });

Drag options to blanks, or click blank then click option'

A"success"

B"message"

C"status"

D"error"

Attempts:

3 left

💡 Hint

Common Mistakes

Using keys that do not exist in the response.

Forgetting to put the key name in quotes.

The assertion checks if the JSON response has the key 'success'. This confirms the response structure.

3fill in blank

hard

Fix the error in the assertion that checks if the response time is less than 200ms.

Postman

pm.test("Response time is fast", function () { pm.expect(pm.response.responseTime).to.be.[1](200); });

Drag options to blanks, or click blank then click option'

Abelow

BlessThan

Cabove

DgreaterThan

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'below' which is not a valid method.

Using 'greaterThan' which checks the opposite condition.

The correct assertion method is lessThan to check if response time is under 200ms.

4fill in blank

hard

Fill both blanks to assert the response header 'Content-Type' is 'application/json'.

Postman

pm.test("Content-Type is JSON", function () { pm.response.to.have.header([1]); pm.expect(pm.response.headers.get([2])).to.equal('application/json'); });

Drag options to blanks, or click blank then click option'

A"Content-Type"

B"Accept"

C"content-type"

D"Authorization"

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong header names like 'Accept' or 'Authorization'.

Using different header names in the two blanks.

Headers are case-insensitive but best practice is to use 'Content-Type' exactly. Both blanks need this header name.

5fill in blank

hard

Fill all three blanks to assert the response JSON has a 'data' object with a 'userId' equal to 5.

Postman

pm.test("User ID is 5", function () { const jsonData = pm.response.json(); pm.expect(jsonData[1][2]).to.eql([3]); });

Drag options to blanks, or click blank then click option'

A['data']

B['userId']

C5

D['id']

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong keys like 'id' instead of 'userId'.

Checking for wrong values instead of 5.

The code accesses jsonData['data']['userId'] and checks if it equals 5.