package org.apache.maven.plugins.shade.filter;
   
   /*
    * 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.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.startsWith;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.fail;
  import static org.junit.Assume.assumeFalse;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  import java.util.Set;
  import java.util.TreeSet;
  import java.util.jar.JarOutputStream;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.DefaultArtifact;
  import org.apache.maven.artifact.DependencyResolutionRequiredException;
  import org.apache.maven.model.Build;
  import org.apache.maven.plugin.logging.Log;
  import org.apache.maven.project.MavenProject;
  import org.junit.Before;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TemporaryFolder;
  import org.mockito.ArgumentCaptor;
  
  public class MinijarFilterTest
  {
  
      @Rule
      public TemporaryFolder tempFolder = TemporaryFolder.builder().assureDeletion().build();
  
      private File outputDirectory;
      private File emptyFile;
      private File jarFile;
      private Log log;
      private ArgumentCaptor<CharSequence> logCaptor;
  
      @Before
      public void init()
          throws IOException
      {
          this.outputDirectory = tempFolder.newFolder();
          this.emptyFile = tempFolder.newFile();
          this.jarFile = tempFolder.newFile();
          new JarOutputStream( new FileOutputStream( this.jarFile ) ).close();
          this.log = mock(Log.class);
          logCaptor = ArgumentCaptor.forClass(CharSequence.class);
      }
  
      /**
       * This test will fail on JDK 7 because jdependency needs at least JDK 8.
       */
      @Test
      public void testWithMockProject()
          throws IOException
      {
          assumeFalse( "Expected to run under JDK8+", System.getProperty("java.version").startsWith("1.7") );
  
          MavenProject mavenProject = mockProject( outputDirectory, emptyFile );
  
          MinijarFilter mf = new MinijarFilter( mavenProject, log );
  
          mf.finished();
  
          verify( log, times( 1 ) ).info( logCaptor.capture() );
  
          assertEquals( "Minimized 0 -> 0", logCaptor.getValue() );
  
      }
  
      @Test
     public void testWithPomProject()
         throws IOException
     {
         // project with pom packaging and no artifact.
         MavenProject mavenProject = mockProject( outputDirectory, null );
         mavenProject.setPackaging( "pom" );
 
         MinijarFilter mf = new MinijarFilter( mavenProject, log );
 
         mf.finished();
 
         verify( log, times( 1 ) ).info( logCaptor.capture() );
 
         // verify no access to project's artifacts
         verify( mavenProject, times( 0 ) ).getArtifacts();
 
         assertEquals( "Minimized 0 -> 0", logCaptor.getValue() );
 
     }
 
     private MavenProject mockProject( File outputDirectory, File file, String... classPathElements )
     {
         MavenProject mavenProject = mock( MavenProject.class );
 
         Artifact artifact = mock( Artifact.class );
         when( artifact.getGroupId() ).thenReturn( "com" );
         when( artifact.getArtifactId() ).thenReturn( "aid" );
         when( artifact.getVersion() ).thenReturn( "1.9" );
         when( artifact.getClassifier() ).thenReturn( "classifier1" );
         when( artifact.getScope() ).thenReturn( Artifact.SCOPE_COMPILE );
 
         when( mavenProject.getArtifact() ).thenReturn( artifact );
 
         DefaultArtifact dependencyArtifact =
             new DefaultArtifact( "dep.com", "dep.aid", "1.0", "compile", "jar", "classifier2", null );
         dependencyArtifact.setFile( file );
 
         Set<Artifact> artifacts = new TreeSet<>();
         artifacts.add( dependencyArtifact );
 
         when( mavenProject.getArtifacts() ).thenReturn( artifacts );
 
         when( mavenProject.getArtifact().getFile() ).thenReturn( file );
 
         Build build = new Build();
         build.setOutputDirectory( outputDirectory.toString() );
 
         List<String> classpath = new ArrayList<>();
         classpath.add( outputDirectory.toString() );
         if ( file != null )
         {
             classpath.add(file.toString());
         }
         classpath.addAll( Arrays.asList( classPathElements ) );
         when( mavenProject.getBuild() ).thenReturn( build );
         try {
             when(mavenProject.getRuntimeClasspathElements()).thenReturn(classpath);
         } catch (DependencyResolutionRequiredException e) {
             fail("Encountered unexpected exception: " + e.getClass().getSimpleName() + ": " + e.getMessage());
         }
 
         return mavenProject;
     }
 
     @Test
     public void finsishedShouldProduceMessageForClassesTotalNonZero()
     {
         MinijarFilter m = new MinijarFilter( 1, 50, log );
 
         m.finished();
 
         verify( log, times( 1 ) ).info( logCaptor.capture() );
 
         assertEquals( "Minimized 51 -> 1 (1%)", logCaptor.getValue() );
 
     }
 
     @Test
     public void finishedShouldProduceMessageForClassesTotalZero()
     {
         MinijarFilter m = new MinijarFilter( 0, 0, log );
 
         m.finished();
 
         verify( log, times( 1 ) ).info( logCaptor.capture() );
 
         assertEquals( "Minimized 0 -> 0", logCaptor.getValue() );
 
     }
 
     /**
      * Verify that directories are ignored when scanning the classpath for JARs containing services,
      * but warnings are logged instead
      *
      * @see <a href="https://issues.apache.org/jira/browse/MSHADE-366">MSHADE-366</a>
      */
     @Test
     public void removeServicesShouldIgnoreDirectories() throws Exception {
         String classPathElementToIgnore = tempFolder.newFolder().getAbsolutePath();
         MavenProject mockedProject = mockProject( outputDirectory, jarFile, classPathElementToIgnore );
 
         new MinijarFilter(mockedProject, log);
 
         verify( log, times( 1 ) ).warn( logCaptor.capture() );
 
         assertThat( logCaptor.getValue().toString(), startsWith(
                 "Not a JAR file candidate. Ignoring classpath element '" + classPathElementToIgnore + "' (" ) );
     }
 
 }