org.apache.hadoop.metrics2.sink.timeline.cache.HandleConnectExceptionTest.java Source code

Introduction

Here is the source code for org.apache.hadoop.metrics2.sink.timeline.cache.HandleConnectExceptionTest.java

Source

/**
 * 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.hadoop.metrics2.sink.timeline.cache;

import java.io.IOException;
import java.net.ConnectException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink;
import org.apache.hadoop.metrics2.sink.timeline.TimelineMetrics;
import org.apache.hadoop.metrics2.sink.timeline.UnableToConnectException;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.runners.MockitoJUnitRunner;

@RunWith(MockitoJUnitRunner.class)
public class HandleConnectExceptionTest {
    private static final String COLLECTOR_URL = "collector";
    @Mock
    private HttpClient client;
    private TestTimelineMetricsSink sink;

    @Before
    public void init() {
        sink = new TestTimelineMetricsSink();
        sink.setHttpClient(client);

        try {
            Mockito.when(client.executeMethod(Mockito.<HttpMethod>any())).thenThrow(new ConnectException());
        } catch (IOException e) {
            //no-op
        }
    }

    @Test
    public void handleTest() {
        try {
            sink.emitMetrics(new TimelineMetrics());
            Assert.fail();
        } catch (UnableToConnectException e) {
            Assert.assertEquals(COLLECTOR_URL, e.getConnectUrl());
        } catch (Exception e) {
            Assert.fail(e.getMessage());
        }
    }

    class TestTimelineMetricsSink extends AbstractTimelineMetricsSink {
        @Override
        protected String getCollectorUri() {
            return COLLECTOR_URL;
        }

        @Override
        public void emitMetrics(TimelineMetrics metrics) throws IOException {
            super.emitMetrics(metrics);
        }
    }
}