A Mockito test simulating exception

stub exception

    @Test
    public void testShowBalance() throws BankServiceException {
        //given
        Mockito.when(bankService.getBalance())
                .thenThrow(new BankServiceException());

        //when
        sut.showBalance();
        
        //then
        Mockito.verify(screen).displayError(ATM.BANK_SERVICE_ERROR);
    }