Iteration count in Postman - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the iteration count in Postman?

The iteration count is the number of times a Postman collection or request runs during a collection run. It helps test APIs multiple times with different data or scenarios.

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How can you access the current iteration number in Postman scripts?

You can access it using pm.info.iteration. It starts from 0 for the first iteration and increases by 1 each time.

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Why is iteration count useful in API testing?

It allows running the same test multiple times with different data sets, helping to find bugs that appear only in certain cases or after repeated calls.

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How do you set the number of iterations in Postman?

When running a collection in the Collection Runner, you specify the number of iterations in the 'Iterations' input box before starting the run.

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What will pm.info.iteration return on the third run if iterations start at 0?

It will return 2 because iteration counting starts at 0, so the first run is 0, second is 1, and third is 2.

In Postman, what does pm.info.iteration represent?

A The current iteration number starting from 0

B The total number of requests in the collection

C The number of failed tests

D The current request index

pm.info.iteration gives the current iteration count starting at 0 for the first run.

How do you specify how many times a collection runs in Postman Collection Runner?

A By modifying the test scripts

B By editing the request URL

C By changing environment variables

D By setting the 'Iterations' number before running

The 'Iterations' input in Collection Runner controls how many times the collection runs.

If you want to run a test 5 times with different data sets, what should you do in Postman?

A Run the collection once only

B Manually run the request 5 times

C Set iterations to 5 and use data files

D Change the request method to POST

Setting iterations to 5 and using a data file allows running tests with different data automatically.

What is the starting value of pm.info.iteration in Postman?

A 1

B 0

C -1

D Undefined

Iteration count starts at 0 for the first run in Postman.

Why might you use iteration count in your test scripts?

A To run different tests or data based on the iteration number

B To change the request URL automatically

C To skip tests randomly

D To stop the collection run early

You can use iteration count to customize tests or data for each run.

Explain how iteration count works in Postman and how you can use it in your tests.

Think about running the same test multiple times with different inputs.

Describe a real-life scenario where using iteration count in Postman would help improve API testing.

Imagine testing a login API with many usernames and passwords.