package org.apache.maven.shared.verifier;
   
   import static org.hamcrest.MatcherAssert.assertThat;
   
   /*
    * 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 static org.hamcrest.Matchers.is;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.io.BufferedReader;
  import java.nio.file.Files;
  import java.io.IOException;
  import java.nio.charset.StandardCharsets;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Properties;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.io.TempDir;
  
  
  public class ForkedLauncherTest
  {
      @TempDir
      public Path temporaryDir;
      
      private ForkedLauncher launcher;
      
      private final String workingDir = Paths.get( "src/test/resources/wrapper-project" ).toAbsolutePath().toString();
      
      @Test
      public void mvnw() throws Exception
      {
          launcher = new ForkedLauncher( ".", Collections.emptyMap(), false, true );
          Path logFile = temporaryDir.resolve( "build.log" );
  
          int exitCode = launcher.run( new String[0], new Properties(), workingDir, logFile.toFile() );
  
          // most likely this contains the exception in case exitCode != 0
          expectFileLine( logFile, "Hello World" );
  
          assertThat( "exit code", exitCode, is ( 0 ) );
      }
  
      @Test
      public void mvnwDebug() throws Exception
      {
          launcher = new ForkedLauncher( ".", Collections.emptyMap(), true, true );
          Path logFile = temporaryDir.resolve( "build.log" );
  
          int exitCode = launcher.run( new String[0], new Properties(), workingDir, logFile.toFile() );
  
          // most likely this contains the exception in case exitCode != 0
          expectFileLine( logFile, "Hello World" );
  
          assertThat( "exit code", exitCode , is ( 0 ) );
      }
  
      static void expectFileLine( Path file, String expectedline ) throws IOException
      {
          try ( BufferedReader br = Files.newBufferedReader( file, StandardCharsets.UTF_8 ) )
          {
              Collection<String> text = new ArrayList<>();
              String line;
              while ( ( line = br.readLine() ) != null )
              {
                  if ( expectedline.equals( line ) )
                  {
                      return;
                  }
                  text.add( line );
              }
  
              String message = "%s doesn't contain '%s', was:%n%s";
              fail( String.format( message, file.getFileName(), expectedline, text ) );
          }
      }
  
  }