/*
    * 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.slf4j.impl;
  
  import java.io.ByteArrayOutputStream;
  import java.io.PrintStream;
  import java.util.Arrays;
  import java.util.List;
  import java.util.NoSuchElementException;
  
  import org.junit.Test;
  
  import static java.nio.charset.StandardCharsets.UTF_8;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.stringContainsInOrder;
  
  public class MavenSimpleLoggerTest {
  
      @Test
      public void includesCauseAndSuppressedExceptionsWhenWritingThrowables() throws Exception {
          Exception causeOfSuppressed = new NoSuchElementException("cause of suppressed");
          Exception suppressed = new IllegalStateException("suppressed", causeOfSuppressed);
          suppressed.addSuppressed(new IllegalArgumentException(
                  "suppressed suppressed", new ArrayIndexOutOfBoundsException("suppressed suppressed cause")));
          Exception cause = new IllegalArgumentException("cause");
          cause.addSuppressed(suppressed);
          Exception throwable = new RuntimeException("top-level", cause);
  
          ByteArrayOutputStream output = new ByteArrayOutputStream();
  
          new MavenSimpleLogger("logger").writeThrowable(throwable, new PrintStream(output));
  
          String actual = output.toString(UTF_8.name());
  
          List<String> expectedLines = Arrays.asList(
                  "java.lang.RuntimeException: top-level",
                  "Caused by: java.lang.IllegalArgumentException: cause",
                  "    Suppressed: java.lang.IllegalStateException: suppressed",
                  "        Suppressed: java.lang.IllegalArgumentException: suppressed suppressed",
                  "        Caused by: java.lang.ArrayIndexOutOfBoundsException: suppressed suppressed cause",
                  "    Caused by: java.util.NoSuchElementException: cause of suppressed");
  
          assertThat(actual, stringContainsInOrder(expectedLines));
      }
  }