CouchbaseProducerTest.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.camel.component.couchbase;

import java.util.HashMap;
import java.util.Map;

import com.couchbase.client.CouchbaseClient;

import net.spy.memcached.PersistTo;
import net.spy.memcached.ReplicateTo;
import net.spy.memcached.internal.OperationFuture;

import org.apache.camel.Exchange;
import org.apache.camel.InvalidPayloadException;
import org.apache.camel.Message;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

import static org.apache.camel.component.couchbase.CouchbaseConstants.HEADER_TTL;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.mockito.MockitoAnnotations.initMocks;

public class CouchbaseProducerTest {

    @Mock
    private CouchbaseClient client;

    @Mock
    private CouchbaseEndpoint endpoint;

    @Mock
    private Exchange exchange;

    @Mock
    private Message msg;

    @Mock
    private OperationFuture response;

    private CouchbaseProducer producer;

    @Before
    public void before() throws Exception {
        initMocks(this);
        when(endpoint.getProducerRetryAttempts()).thenReturn(CouchbaseConstants.DEFAULT_PRODUCER_RETRIES);
        producer = new CouchbaseProducer(endpoint, client, 0, 0);
        when(exchange.getIn()).thenReturn(msg);
    }

    @SuppressWarnings("unchecked")
    @Test(expected = CouchbaseException.class)
    public void testBodyMandatory() throws Exception {
        when(msg.getMandatoryBody()).thenThrow(InvalidPayloadException.class);
        producer.process(exchange);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testPersistToLowerThanSupported() throws Exception {
        producer = new CouchbaseProducer(endpoint, client, -1, 0);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testPersistToHigherThanSupported() throws Exception {
        producer = new CouchbaseProducer(endpoint, client, 5, 0);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testReplicateToLowerThanSupported() throws Exception {
        producer = new CouchbaseProducer(endpoint, client, 0, -1);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testReplicateToHigherThanSupported() throws Exception {
        producer = new CouchbaseProducer(endpoint, client, 0, 4);
    }

    @Test
    public void testMaximumValuesForPersistToAndRepicateTo() throws Exception {
        try {
            producer = new CouchbaseProducer(endpoint, client, 4, 3);
        } catch (IllegalArgumentException e) {
            Assert.fail("Exception was thrown while testing maximum values for persistTo and replicateTo parameters " + e.getMessage());
        }
    }

    @Test
    public void testExpiryTimeIsSet() throws Exception {
        OperationFuture of = mock(OperationFuture.class);
        when(of.get()).thenAnswer(new Answer<Object>() {
            @Override
            public Object answer(InvocationOnMock invocation) throws Exception {
                return true;

            }
        });

        when(client.set(org.mockito.Matchers.anyString(), org.mockito.Matchers.anyInt(), org.mockito.Matchers.anyObject(), org.mockito.Matchers.any(PersistTo.class),
                        org.mockito.Matchers.any(ReplicateTo.class))).thenReturn(of);
        // Mock out some headers so we can set an expiry
        int expiry = 5000;
        Map<String, Object> testHeaders = new HashMap<String, Object>();
        testHeaders.put("CCB_TTL", Integer.toString(expiry));
        when(msg.getHeaders()).thenReturn(testHeaders);
        when(msg.getHeader(HEADER_TTL, String.class)).thenReturn(Integer.toString(expiry));

        when(endpoint.getId()).thenReturn("123");
        when(endpoint.getOperation()).thenReturn("CCB_PUT");
        Message outmsg = mock(Message.class);
        when(exchange.getOut()).thenReturn(msg);

        producer.process(exchange);

        verify(client).set(org.mockito.Matchers.anyString(), Mockito.eq(expiry), org.mockito.Matchers.anyObject(), org.mockito.Matchers.any(PersistTo.class),
                           org.mockito.Matchers.any(ReplicateTo.class));

    }

    @Test
    public void testTimeOutRetryToException() throws Exception {

        OperationFuture of = mock(OperationFuture.class);
        when(of.get()).thenAnswer(new Answer<Object>() {
            @Override
            public Object answer(InvocationOnMock invocation) throws Exception {
                throw new RuntimeException("Timed out waiting for operation");

            }
        });

        when(client.set(org.mockito.Matchers.anyString(), org.mockito.Matchers.anyInt(), org.mockito.Matchers.anyObject(), org.mockito.Matchers.any(PersistTo.class),
                        org.mockito.Matchers.any(ReplicateTo.class))).thenReturn(of);
        when(endpoint.getId()).thenReturn("123");
        when(endpoint.getOperation()).thenReturn("CCB_PUT");
        try {
            producer.process(exchange);
        } catch (Exception e) {
            // do nothing
            verify(of, times(3)).get();
        }

    }

    @Test
    public void testTimeOutRetryThenSuccess() throws Exception {

        OperationFuture of = mock(OperationFuture.class);
        when(of.get()).thenAnswer(new Answer<Object>() {
            @Override
            public Object answer(InvocationOnMock invocation) throws Exception {
                throw new RuntimeException("Timed out waiting for operation");

            }
        }).thenAnswer(new Answer<Object>() {
            @Override
            public Object answer(InvocationOnMock invocation) throws Exception {
                return true;

            }
        });

        when(client.set(org.mockito.Matchers.anyString(), org.mockito.Matchers.anyInt(), org.mockito.Matchers.anyObject(), org.mockito.Matchers.any(PersistTo.class),
                        org.mockito.Matchers.any(ReplicateTo.class))).thenReturn(of);
        when(endpoint.getId()).thenReturn("123");
        when(endpoint.getOperation()).thenReturn("CCB_PUT");
        when(exchange.getOut()).thenReturn(msg);

        producer.process(exchange);

        verify(of, times(2)).get();
        verify(msg).setBody(true);
    }

    @Test
    public void testTimeOutRetryTwiceThenSuccess() throws Exception {

        OperationFuture of = mock(OperationFuture.class);
        when(of.get()).thenAnswer(new Answer<Object>() {
            @Override
            public Object answer(InvocationOnMock invocation) throws Exception {
                throw new RuntimeException("Timed out waiting for operation");

            }
        }).thenAnswer(new Answer<Object>() {
            @Override
            public Object answer(InvocationOnMock invocation) throws Exception {
                throw new RuntimeException("Timed out waiting for operation");

            }
        }).thenAnswer(new Answer<Object>() {
            @Override
            public Object answer(InvocationOnMock invocation) throws Exception {
                return true;

            }
        });

        when(client.set(org.mockito.Matchers.anyString(), org.mockito.Matchers.anyInt(), org.mockito.Matchers.anyObject(), org.mockito.Matchers.any(PersistTo.class),
                        org.mockito.Matchers.any(ReplicateTo.class))).thenReturn(of);
        when(endpoint.getId()).thenReturn("123");
        when(endpoint.getOperation()).thenReturn("CCB_PUT");
        when(exchange.getOut()).thenReturn(msg);

        producer.process(exchange);

        verify(of, times(3)).get();
        verify(msg).setBody(true);
    }
}