### Question:
DefaultWirecardPaymentOperationStrategy implements PaymentOperationStrategy { @Override public PaymentOperation getOperation(PaymentModeModel paymentModeModel) throws WirecardPaymenException { return getOperation(paymentModeModel, WirecardPaymentTransactionConstants.AUTHORIZATION); }  @Override PaymentOperation getOperation(PaymentModeModel paymentModeModel); @Override PaymentOperation getOperation(PaymentModeModel paymentModeModel, String paymentTransaction); Map<String, Map<String, PaymentOperation>> getConverterMap(); void setConverterMap(Map<String, Map<String, PaymentOperation>> converterMap);  }### Answer:
@Test public void testGetOperation() throws WirecardPaymenException { assertNotNull("A Payment mode should be returned", defaultWirecardPaymentOperationStrategy.getOperation(paymentModeModel)); }