001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.ipc;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.mockito.ArgumentMatchers.any;
022import static org.mockito.Mockito.doAnswer;
023import static org.mockito.Mockito.mock;
024import static org.mockito.Mockito.times;
025import static org.mockito.Mockito.verify;
026import static org.mockito.Mockito.when;
027
028import java.util.concurrent.atomic.AtomicReference;
029import org.apache.hadoop.conf.Configuration;
030import org.apache.hadoop.hbase.net.Address;
031import org.apache.hadoop.hbase.testclassification.ClientTests;
032import org.apache.hadoop.hbase.testclassification.SmallTests;
033import org.junit.jupiter.api.AfterEach;
034import org.junit.jupiter.api.BeforeEach;
035import org.junit.jupiter.api.Tag;
036import org.junit.jupiter.api.Test;
037import org.mockito.invocation.InvocationOnMock;
038import org.mockito.stubbing.Answer;
039
040@Tag(ClientTests.TAG)
041@Tag(SmallTests.TAG)
042public class TestFailedServersLog {
043
044  static final int TEST_PORT = 9999;
045
046  private Address addr;
047
048  private org.apache.logging.log4j.core.Appender mockAppender;
049
050  @BeforeEach
051  public void setup() {
052    mockAppender = mock(org.apache.logging.log4j.core.Appender.class);
053    when(mockAppender.getName()).thenReturn("mockAppender");
054    when(mockAppender.isStarted()).thenReturn(true);
055    ((org.apache.logging.log4j.core.Logger) org.apache.logging.log4j.LogManager
056      .getLogger(FailedServers.class)).addAppender(mockAppender);
057
058  }
059
060  @AfterEach
061  public void teardown() {
062    ((org.apache.logging.log4j.core.Logger) org.apache.logging.log4j.LogManager
063      .getLogger(FailedServers.class)).removeAppender(mockAppender);
064  }
065
066  @Test
067  public void testAddToFailedServersLogging() {
068    AtomicReference<org.apache.logging.log4j.Level> level = new AtomicReference<>();
069    AtomicReference<String> msg = new AtomicReference<String>();
070    doAnswer(new Answer<Void>() {
071
072      @Override
073      public Void answer(InvocationOnMock invocation) throws Throwable {
074        org.apache.logging.log4j.core.LogEvent logEvent =
075          invocation.getArgument(0, org.apache.logging.log4j.core.LogEvent.class);
076        level.set(logEvent.getLevel());
077        msg.set(logEvent.getMessage().getFormattedMessage());
078        return null;
079      }
080    }).when(mockAppender).append(any(org.apache.logging.log4j.core.LogEvent.class));
081
082    Throwable nullException = new NullPointerException();
083    FailedServers fs = new FailedServers(new Configuration());
084    addr = Address.fromParts("localhost", TEST_PORT);
085
086    fs.addToFailedServers(addr, nullException);
087
088    verify(mockAppender, times(1)).append(any(org.apache.logging.log4j.core.LogEvent.class));
089    assertEquals(org.apache.logging.log4j.Level.DEBUG, level.get());
090    assertEquals("Added failed server with address " + addr.toString() + " to list caused by "
091      + nullException.toString(), msg.get());
092  }
093}