Workflow sequencing in Postman - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Order of request execution in Postman Collection Runner

You have a Postman collection with 3 requests: Login, Get Profile, and Logout. You want to run them in sequence so that Login runs first, then Get Profile, then Logout. How does Postman Collection Runner execute these requests by default?

A Runs requests in the order they appear in the collection, one after another.

B Runs all requests in parallel at the same time.

C Runs only the first request and skips the rest.

D Runs requests randomly without any order.

💡 Hint

Think about how a playlist works when you play songs one by one.

Postman Collection Runner executes requests sequentially in the order they appear in the collection. This ensures workflows like login before profile fetch work correctly.

❓ Predict Output

intermediate

Output of test script execution order in Postman

Consider this Postman test script attached to a request:

console.log('Start test');
pm.test('Status code is 200', () => {
  pm.response.to.have.status(200);
});
console.log('End test');

What will be the order of console logs when this test runs?

A Start test, End test

B End test, Start test

C Start test, End test, Status code assertion result

D Only Status code assertion result

💡 Hint

Think about synchronous vs asynchronous code execution.

console.log statements run immediately in order. The assertion inside pm.test runs after these logs but does not affect their order.

❓ locator

advanced

Correct way to reference environment variable in Postman test script

You want to check if the environment variable authToken is set after a login request. Which locator syntax correctly accesses this variable in a Postman test script?

A pm.env.authToken

B pm.variables.authToken

C pm.getEnvironmentVariable('authToken')

D pm.environment.get('authToken')

💡 Hint

Check Postman API for environment variable access methods.

The correct method to get an environment variable is pm.environment.get('variableName'). Other options are invalid or deprecated.

❓ assertion

advanced

Assertion to verify JSON response contains a specific key

You receive this JSON response from an API:

{"user": {"id": 123, "name": "Alice"}}

Which Postman test assertion correctly checks that the response has a user key?

A pm.response.to.have.jsonKey('user');

B pm.expect(pm.response.json()).to.have.property('user');

C pm.expect(pm.response.body).to.include('user');

D pm.response.json().has('user');

💡 Hint

Use Chai assertion style with pm.expect and to.have.property.

Option B correctly uses Chai's to.have.property to check for the key in the parsed JSON object.

❓ framework

expert

Sequence control using Postman setNextRequest in a collection

You have a Postman collection with requests: Step1, Step2, and Step3. You want to run Step1 and then conditionally run Step3 skipping Step2. Which test script code in Step1 achieves this?

A pm.setNextRequest('Step3');

B postman.setNextRequest('Step3');

C if (pm.response.code === 200) { postman.setNextRequest('Step3'); } else { postman.setNextRequest('Step2'); }

D setNextRequest('Step3');

💡 Hint

Remember the exact method name and object to call for controlling request flow.

The correct method is postman.setNextRequest(). Option C uses it conditionally to skip Step2.