QueueMessagingTemplateIntegrationTest.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;

import com.fasterxml.jackson.annotation.JsonProperty;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.cloud.aws.messaging.core.QueueMessagingTemplate;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import javax.annotation.Resource;
import java.util.Collections;
import java.util.List;

import static org.junit.Assert.assertEquals;

/**
 * @author Agim Emruli
 * @author Alain Sahli
 */
@RunWith(SpringJUnit4ClassRunner.class)
public abstract class QueueMessagingTemplateIntegrationTest {

    private static final String JSON_QUEUE_NAME = "JsonQueue";
    private static final String STRING_QUEUE_NAME = "StringQueue";

    @SuppressWarnings("SpringJavaAutowiringInspection")
    @Resource(name = "defaultQueueMessagingTemplate")
    private QueueMessagingTemplate defaultQueueMessagingTemplate;

    @SuppressWarnings("SpringJavaAutowiringInspection")
    @Resource(name = "queueMessagingTemplateWithCustomConverter")
    private QueueMessagingTemplate messagingTemplateWithCustomConverter;

    @Test
    public void sendAndReceive_stringMessageWithProvidedDestination_shouldUseTheProvidedDestination() throws Exception {
        // Arrange
        String messageContent = "testMessage";

        // Act
        this.defaultQueueMessagingTemplate.convertAndSend(STRING_QUEUE_NAME, messageContent);
        String receivedMessage = this.defaultQueueMessagingTemplate.receiveAndConvert(STRING_QUEUE_NAME, String.class);

        // Assert
        assertEquals(messageContent, receivedMessage);
    }

    @Test
    public void sendAndReceive_ObjectMessageWithDefaultDestination_shouldUseTheStreamQueue() throws Exception {
        // Arrange
        List<String> payload = Collections.singletonList("myString");

        // Act
        this.messagingTemplateWithCustomConverter.convertAndSend(payload);
        List<String> result = this.messagingTemplateWithCustomConverter.receiveAndConvert(StringList.class);

        // Assert
        assertEquals("myString", result.get(0));
    }

    @Test
    public void sendAndReceive_JsonMessageWithDefaultDestination_shouldUseTheJsonQueue() throws Exception {
        // Arrange
        DummyObject payload = new DummyObject("Hello", 100);

        // Act
        this.defaultQueueMessagingTemplate.convertAndSend(payload);
        DummyObject result = this.defaultQueueMessagingTemplate.receiveAndConvert(DummyObject.class);

        // Assert
        assertEquals("Hello", result.getValue());
        assertEquals(100, result.getAnotherValue());
    }

    @Test
    public void convertAndSend_aStringWithJsonConverter_shouldSerializeAndDeserializeCorrectly() throws Exception {
        // Act
        this.defaultQueueMessagingTemplate.convertAndSend(JSON_QUEUE_NAME, "A String");

        // Assert
        String result = this.defaultQueueMessagingTemplate.receiveAndConvert(JSON_QUEUE_NAME, String.class);
        assertEquals("A String", result);
    }

    private static class DummyObject {

        private final String value;
        private final int anotherValue;

        private DummyObject(@JsonProperty("value") String value, @JsonProperty("anotherValue") int anotherValue) {
            this.value = value;
            this.anotherValue = anotherValue;
        }

        public int getAnotherValue() {
            return this.anotherValue;
        }

        public String getValue() {
            return this.value;
        }
    }

    private interface StringList extends List<String> {

    }

}