org.springsource.restbucks.payment.PaymentServiceImplUnitTest.java Source code

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Here is the source code for org.springsource.restbucks.payment.PaymentServiceImplUnitTest.java

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/*
 * Copyright 2012-2015 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springsource.restbucks.payment;

import static org.mockito.Mockito.*;

import java.time.Month;
import java.time.Year;
import java.util.Optional;

import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.runners.MockitoJUnitRunner;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.test.util.ReflectionTestUtils;
import org.springsource.restbucks.order.Order;
import org.springsource.restbucks.order.OrderRepository;

/**
 * Unit tests for {@link PaymentServiceImpl}.
 * 
 * @author Oliver Gierke
 */
@RunWith(MockitoJUnitRunner.class)
public class PaymentServiceImplUnitTest {

    static final CreditCardNumber NUMBER = new CreditCardNumber("1234123412341234");

    PaymentService paymentService;

    @Mock
    PaymentRepository paymentRepository;
    @Mock
    CreditCardRepository creditCardRepository;
    @Mock
    OrderRepository orderRepository;
    @Mock
    ApplicationEventPublisher publisher;

    @Rule
    public ExpectedException exception = ExpectedException.none();

    @Before
    public void setUp() {
        this.paymentService = new PaymentServiceImpl(creditCardRepository, paymentRepository, orderRepository,
                publisher);
    }

    @Test(expected = IllegalArgumentException.class)
    public void rejectsNullPaymentRepository() {
        new PaymentServiceImpl(creditCardRepository, null, orderRepository, publisher);
    }

    @Test(expected = IllegalArgumentException.class)
    public void rejectsNullCreditCardRepository() {
        new PaymentServiceImpl(null, paymentRepository, orderRepository, publisher);
    }

    @Test
    public void rejectsAlreadyPaidOrder() {

        Order order = new Order();
        order.markPaid();

        exception.expect(PaymentException.class);
        exception.expectMessage("paid");

        paymentService.pay(order, NUMBER);
    }

    @Test
    public void rejectsPaymentIfNoCreditCardFound() {

        when(creditCardRepository.findByNumber(NUMBER)).thenReturn(Optional.empty());

        exception.expect(PaymentException.class);
        exception.expectMessage("credit card");
        exception.expectMessage(NUMBER.getNumber());

        paymentService.pay(new Order(), NUMBER);
    }

    @Test
    public void throwsOrderPaidEventOnPayment() {

        CreditCard creditCard = new CreditCard(NUMBER, "Oliver Gierke", Month.JANUARY, Year.of(2020));
        when(creditCardRepository.findByNumber(NUMBER)).thenReturn(Optional.of(creditCard));

        Order order = new Order();
        ReflectionTestUtils.setField(order, "id", 1L);

        paymentService.pay(order, NUMBER);

        verify(publisher).publishEvent(Mockito.any((OrderPaidEvent.class)));
    }
}