ISTQB-Foundation -chapter4-question49 – Maged Koshty Expert Wave

4.5. Collaboration-based Test Approaches

FL-4.5.3 (K3) Use acceptance test-driven development (ATDD) to derive test cases

4. You have just started designing test cases for the following user story:

As a customer,

I want to be able to filter search results by price range, so that I can find products within my budget more easily.

Acceptance criteria:

The filter should work for all versions of the application from version 3.0 upwards
The filter should allow the customer to set a price range with a minimum and a maximum price
The search results should update dynamically as the customer adjusts the price range filter

In all test cases the precondition is as follows: there are only two products available, products A and B. Product A costs $100 and product B costs $110.

Which of the following is the BEST example of a test case for this user story?

a) Enter webpage and set filter to show prices between $90 and $100. Expected result: results show product A only. Set maximum price to $110. Expected result: results now include both products A and B

b) Enter webpage. Expected result: the default minimum and maximum prices are $100 and $110 respectively. Add product C to stock, with price $120. Refresh the client’s webpage. Expected result: the default maximum price changes to $120

c) Enter webpage and set filter to show prices between $90 and $115. Expected result: results show both products A and B. Change currency from USD to EUR. Expected result: the filter range changes correctly to EUR values, according to the current exchange rate

d) Enter webpage with three different browsers: Edge, Chrome and Opera. In each browser set filter between $90 and $110. Expected result: results include both products A and B and the results layout is the same in all three browsers

Answer Explanation