Testing · interview question
In a test using Mockito, what is the effect of calling 'doReturn()' instead of 'when()'?
Multiple choiceMediumchapter-10-curatedpremiumtestingmocking-with-mockito
doReturn(true).when(mockPaymentGateway).processPayment(any());Answer and explanation
Correct answer
D. It allows stubbing of void methods.
Why
'doReturn()' is used to stub methods, including those that return void, and offers a different syntax than 'when()'. It is particularly useful when working with methods that might throw exceptions or when you prefer an alternative to the 'when-then' syntax.
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