Question

A developer has written a `calculateShippingCost(weight, zone, isExpress)` function with several conditional branches. They want Copilot Chat to generate unit tests that cover many input combinations without writing a separate test method for each case. Which approach should the developer prompt Copilot to use so the tests remain concise and maintainable as new cases are added?

Accepted Answer

Ask Copilot to generate a single parameterized (table-driven) test that iterates over a collection of input/expected-output tuples

Answer

Ask Copilot to generate one large test method containing all assertions in sequence with no data structure

Answer

Ask Copilot to generate a separate hardcoded test method for every possible combination of the three arguments

Answer

Ask Copilot to generate a test that mocks the shipping function itself and asserts the mock was called