package org.apache.maven.plugin.surefire.log.api;
   
   /*
    * 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.
   */
  
  import org.junit.Test;
  import org.mockito.ArgumentCaptor;
  
  import java.io.ByteArrayOutputStream;
  import java.io.PrintStream;
  
  import static org.fest.assertions.Assertions.assertThat;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  /**
   * Tests for {@link ConsoleLoggerDecorator}, {@link NullConsoleLogger} and {@link PrintStreamLogger}.
   */
  public class LoggersTest
  {
      @Test
      public void testPrintStreamLogger()
      {
          ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
          PrintStream printStream = new PrintStream( outputStream );
          PrintStreamLogger logger = new PrintStreamLogger( printStream );
  
  
          assertThat( logger.isErrorEnabled() ).isTrue();
          assertThat( logger.isWarnEnabled() ).isTrue();
          assertThat( logger.isInfoEnabled() ).isTrue();
          assertThat( logger.isDebugEnabled() ).isTrue();
  
          logger.error( "error" );
          logger.debug( "debug" );
          logger.info( "info" );
          logger.warning( "warning" );
  
          String line = System.lineSeparator();
          assertThat( outputStream.toString() )
                  .isEqualTo( "error" + line + "debug" + line + "info" + line + "warning" + line );
  
          Exception e = new Exception( "exception" );
          outputStream.reset();
          logger.error( e );
          assertThat( outputStream.toString() )
                  .contains( "java.lang.Exception: exception" )
                  .contains( "at " + getClass().getName() + ".testPrintStreamLogger(LoggersTest.java:61)" );
      }
  
      @Test( expected = NullPointerException.class )
      public void shouldThrowNPE()
      {
          new ConsoleLoggerDecorator( null );
      }
  
      @Test
      public void testDecorator()
      {
          ConsoleLogger logger = mock( ConsoleLogger.class );
          ConsoleLoggerDecorator decorator = new ConsoleLoggerDecorator( logger );
  
          assertThat( decorator.isDebugEnabled() ).isFalse();
          when( logger.isDebugEnabled() ).thenReturn( true );
          assertThat( decorator.isDebugEnabled() ).isTrue();
  
          assertThat( decorator.isInfoEnabled() ).isFalse();
          when( logger.isInfoEnabled() ).thenReturn( true );
          assertThat( decorator.isInfoEnabled() ).isTrue();
  
          assertThat( decorator.isWarnEnabled() ).isFalse();
          when( logger.isWarnEnabled() ).thenReturn( true );
          assertThat( decorator.isWarnEnabled() ).isTrue();
  
          assertThat( decorator.isErrorEnabled() ).isFalse();
          when( logger.isErrorEnabled() ).thenReturn( true );
          assertThat( decorator.isErrorEnabled() ).isTrue();
  
          ArgumentCaptor<String> argumentMsg = ArgumentCaptor.forClass( String.class );
          decorator.debug( "debug" );
          verify( logger, times( 1 ) ).debug( argumentMsg.capture() );
         assertThat( argumentMsg.getAllValues() ).hasSize( 1 );
         assertThat( argumentMsg.getAllValues().get( 0 ) ).isEqualTo( "debug" );
 
         argumentMsg = ArgumentCaptor.forClass( String.class );
         decorator.info( "info" );
         verify( logger, times( 1 ) ).info( argumentMsg.capture() );
         assertThat( argumentMsg.getAllValues() ).hasSize( 1 );
         assertThat( argumentMsg.getAllValues().get( 0 ) ).isEqualTo( "info" );
 
         argumentMsg = ArgumentCaptor.forClass( String.class );
         decorator.warning( "warning" );
         verify( logger, times( 1 ) ).warning( argumentMsg.capture() );
         assertThat( argumentMsg.getAllValues() ).hasSize( 1 );
         assertThat( argumentMsg.getAllValues().get( 0 ) ).isEqualTo( "warning" );
 
         argumentMsg = ArgumentCaptor.forClass( String.class );
         decorator.error( "error" );
         verify( logger, times( 1 ) ).error( argumentMsg.capture() );
         assertThat( argumentMsg.getAllValues() ).hasSize( 1 );
         assertThat( argumentMsg.getAllValues().get( 0 ) ).isEqualTo( "error" );
 
         ArgumentCaptor<Throwable> argumentThrowable = ArgumentCaptor.forClass( Throwable.class );
         argumentMsg = ArgumentCaptor.forClass( String.class );
         Exception e = new Exception();
         decorator.error( "error", e );
         verify( logger, times( 1 ) ).error( argumentMsg.capture(), argumentThrowable.capture() );
         assertThat( argumentMsg.getAllValues() ).hasSize( 1 );
         assertThat( argumentMsg.getAllValues().get( 0 ) ).isEqualTo( "error" );
         assertThat( argumentThrowable.getAllValues() ).hasSize( 1 );
         assertThat( argumentThrowable.getAllValues().get( 0 ) ).isSameAs( e );
 
         argumentThrowable = ArgumentCaptor.forClass( Throwable.class );
         decorator.error( e );
         verify( logger, times( 1 ) ).error( argumentThrowable.capture() );
         assertThat( argumentThrowable.getAllValues() ).hasSize( 1 );
         assertThat( argumentThrowable.getAllValues().get( 0 ) ).isSameAs( e );
     }
 }