NotificationStatusHandlerMethodArgumentResolverTest.java

/*
 * Copyright 2013-2014 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.springframework.cloud.aws.messaging.endpoint;

import com.amazonaws.services.sns.AmazonSNS;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.springframework.core.MethodParameter;
import org.springframework.core.io.ClassPathResource;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.util.FileCopyUtils;
import org.springframework.util.ReflectionUtils;
import org.springframework.web.context.request.ServletWebRequest;

import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

public class NotificationStatusHandlerMethodArgumentResolverTest {

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

    @Test
    public void resolveArgument_wrongMessageType_reportsErrors() throws Exception {
        //Arrange
        this.expectedException.expect(IllegalArgumentException.class);
        this.expectedException.expectMessage("NotificationStatus is only available");

        AmazonSNS amazonSns = mock(AmazonSNS.class);
        NotificationStatusHandlerMethodArgumentResolver resolver = new NotificationStatusHandlerMethodArgumentResolver(amazonSns);

        byte[] subscriptionRequestJsonContent = FileCopyUtils.copyToByteArray(new ClassPathResource("notificationMessage.json", getClass()).getInputStream());
        MockHttpServletRequest servletRequest = new MockHttpServletRequest();
        servletRequest.setContent(subscriptionRequestJsonContent);

        MethodParameter methodParameter = new MethodParameter(ReflectionUtils.findMethod(NotificationMethods.class, "subscriptionMethod", NotificationStatus.class), 0);

        //Act
        resolver.resolveArgument(methodParameter, null, new ServletWebRequest(servletRequest), null);

        //Assert
    }

    @Test
    public void resolveArgument_subscriptionRequest_createsValidSubscriptionStatus() throws Exception {
        //Arrange
        AmazonSNS amazonSns = mock(AmazonSNS.class);
        NotificationStatusHandlerMethodArgumentResolver resolver = new NotificationStatusHandlerMethodArgumentResolver(amazonSns);

        byte[] subscriptionRequestJsonContent = FileCopyUtils.copyToByteArray(new ClassPathResource("subscriptionConfirmation.json", getClass()).getInputStream());

        MockHttpServletRequest servletRequest = new MockHttpServletRequest();
        servletRequest.setContent(subscriptionRequestJsonContent);

        MethodParameter methodParameter = new MethodParameter(ReflectionUtils.findMethod(NotificationMethods.class, "subscriptionMethod", NotificationStatus.class), 0);

        //Act
        Object resolvedArgument = resolver.resolveArgument(methodParameter, null, new ServletWebRequest(servletRequest), null);

        //Assert
        assertTrue(resolvedArgument instanceof NotificationStatus);
        ((NotificationStatus) resolvedArgument).confirmSubscription();
        verify(amazonSns, times(1)).confirmSubscription("arn:aws:sns:eu-west-1:111111111111:mySampleTopic", "111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111");
    }
}