package org.apache.maven.plugins.assembly.io;

/*
 * 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 junit.framework.TestCase;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.model.Model;
import org.apache.maven.plugins.assembly.AssemblerConfigurationSource;
import org.apache.maven.plugins.assembly.InvalidAssemblerConfigurationException;
import org.apache.maven.plugins.assembly.archive.DefaultAssemblyArchiverTest;
import org.apache.maven.plugins.assembly.interpolation.AssemblyInterpolator;
import org.apache.maven.plugins.assembly.model.Assembly;
import org.apache.maven.plugins.assembly.model.Component;
import org.apache.maven.plugins.assembly.model.ContainerDescriptorHandlerConfig;
import org.apache.maven.plugins.assembly.model.DependencySet;
import org.apache.maven.plugins.assembly.model.FileItem;
import org.apache.maven.plugins.assembly.model.FileSet;
import org.apache.maven.plugins.assembly.model.Repository;
import org.apache.maven.plugins.assembly.model.io.xpp3.AssemblyXpp3Writer;
import org.apache.maven.plugins.assembly.model.io.xpp3.ComponentXpp3Reader;
import org.apache.maven.plugins.assembly.model.io.xpp3.ComponentXpp3Writer;
import org.apache.maven.plugins.assembly.testutils.TestFileManager;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.interpolation.fixed.FixedStringSearchInterpolator;
import org.codehaus.plexus.interpolation.fixed.InterpolationState;
import org.codehaus.plexus.logging.Logger;
import org.codehaus.plexus.logging.console.ConsoleLogger;
import org.codehaus.plexus.util.IOUtil;
import org.easymock.classextension.EasyMockSupport;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

import static org.easymock.EasyMock.expect;

public class DefaultAssemblyReaderTest
    extends TestCase
{

    private TestFileManager fileManager;

    private EasyMockSupport mockManager;


    private AssemblerConfigurationSource configSource;

    public static StringReader writeToStringReader( Assembly assembly )
        throws IOException
    {
        final StringWriter sw = new StringWriter();
        final AssemblyXpp3Writer assemblyWriter = new AssemblyXpp3Writer();

        assemblyWriter.write( sw, assembly );

        return new StringReader( sw.toString() );
    }

    @Override
    public void setUp()
    {
        fileManager = new TestFileManager( "assembly-reader.test.", ".xml" );
        mockManager = new EasyMockSupport();

        configSource = mockManager.createMock( AssemblerConfigurationSource.class );

        ArtifactRepository localRepo = mockManager.createMock( ArtifactRepository.class );

        expect( localRepo.getBasedir() ).andReturn( "/path/to/local/repo" ).anyTimes();
        expect( configSource.getLocalRepository() ).andReturn( localRepo ).anyTimes();
        expect( configSource.getRemoteRepositories() ).andReturn(
            Collections.<ArtifactRepository>emptyList() ).anyTimes();
        expect( configSource.getMavenSession() ).andReturn( null ).anyTimes();
    }

    @Override
    public void tearDown()
        throws IOException
    {
        fileManager.cleanUp();
    }

    public void testIncludeSiteInAssembly_ShouldFailIfSiteDirectoryNonExistent()
        throws IOException
    {
        final File siteDir = File.createTempFile( "assembly-reader.", ".test" );
        siteDir.delete();

        expect( configSource.getSiteDirectory() ).andReturn( siteDir ).anyTimes();

        final Assembly assembly = new Assembly();

        mockManager.replayAll();

        try
        {
            new DefaultAssemblyReader().includeSiteInAssembly( assembly, configSource );

            fail( "Should fail when site directory is non-existent." );
        }
        catch ( final InvalidAssemblerConfigurationException e )
        {
            // this should happen.
        }

        mockManager.verifyAll();
    }

    // public void testReadComponent_ShouldReadComponentFromXml()
    // throws IOException, AssemblyReadException
    // {
    // Component component = new Component();
    //
    // FileSet fileSet = new FileSet();
    // fileSet.setDirectory( "/dir" );
    //
    // component.addFileSet( fileSet );
    //
    // StringWriter sw = new StringWriter();
    //
    // ComponentXpp3Writer componentWriter = new ComponentXpp3Writer();
    //
    // componentWriter.write( sw, component );
    //
    // Component result = new DefaultAssemblyReader().readComponent( new StringReader( sw.toString() ) );
    //
    // List<FileSet> fileSets = result.getFileSets();
    //
    // assertNotNull( fileSets );
    // assertEquals( 1, fileSets.size() );
    //
    // FileSet fs = (FileSet) fileSets.get( 0 );
    //
    // assertEquals( "/dir", fs.getDirectory() );
    // }
    //
    // public void testGetComponentFromFile_ShouldReadComponent()
    // throws IOException, AssemblyReadException
    // {
    // Component component = new Component();
    //
    // FileSet fileSet = new FileSet();
    // fileSet.setDirectory( "/dir" );
    //
    // component.addFileSet( fileSet );
    //
    // File componentFile = fileManager.createTempFile();
    //
    // FileWriter writer = null;
    //
    // try
    // {
    // writer = new FileWriter( componentFile );
    //
    // ComponentXpp3Writer componentWriter = new ComponentXpp3Writer();
    //
    // componentWriter.write( writer, component );
    // }
    // finally
    // {
    // IOUtil.close( writer );
    // }
    //
    // File basedir = componentFile.getParentFile();
    // String filename = componentFile.getName();
    //
    // configSource.getBasedir();
    // configSourceControl.setReturnValue( basedir );
    //
    // mockManager.replayAll();
    //
    // Component result = new DefaultAssemblyReader().getComponentFromFile( filename, configSource );
    //
    // List<FileSet> fileSets = result.getFileSets();
    //
    // assertNotNull( fileSets );
    // assertEquals( 1, fileSets.size() );
    //
    // FileSet fs = (FileSet) fileSets.get( 0 );
    //
    // assertEquals( "/dir", fs.getDirectory() );
    //
    // mockManager.verifyAll();
    // }

    public void testIncludeSiteInAssembly_ShouldAddSiteDirFileSetWhenDirExists()
        throws IOException, InvalidAssemblerConfigurationException
    {
        final File siteDir = fileManager.createTempDir();

        expect( configSource.getSiteDirectory() ).andReturn( siteDir ).anyTimes();

        final Assembly assembly = new Assembly();

        mockManager.replayAll();

        new DefaultAssemblyReader().includeSiteInAssembly( assembly, configSource );

        final List<FileSet> fileSets = assembly.getFileSets();

        assertNotNull( fileSets );
        assertEquals( 1, fileSets.size() );

        final FileSet fs = fileSets.get( 0 );

        assertEquals( siteDir.getPath(), fs.getDirectory() );

        mockManager.verifyAll();
    }

    public void testMergeComponentWithAssembly_ShouldAddOneFileSetToExistingListOfTwo()
    {
        final Assembly assembly = new Assembly();

        FileSet fs = new FileSet();
        fs.setDirectory( "/dir" );

        assembly.addFileSet( fs );

        fs = new FileSet();
        fs.setDirectory( "/other-dir" );
        assembly.addFileSet( fs );

        fs = new FileSet();
        fs.setDirectory( "/third-dir" );

        final Component component = new Component();

        component.addFileSet( fs );

        new DefaultAssemblyReader().mergeComponentWithAssembly( component, assembly );

        final List<FileSet> fileSets = assembly.getFileSets();

        assertNotNull( fileSets );
        assertEquals( 3, fileSets.size() );

        final FileSet rfs1 = fileSets.get( 0 );
        assertEquals( "/dir", rfs1.getDirectory() );

        final FileSet rfs2 = fileSets.get( 1 );
        assertEquals( "/other-dir", rfs2.getDirectory() );

        final FileSet rfs3 = fileSets.get( 2 );
        assertEquals( "/third-dir", rfs3.getDirectory() );

    }

    public void testMergeComponentWithAssembly_ShouldAddOneFileItemToExistingListOfTwo()
    {
        final Assembly assembly = new Assembly();

        FileItem fi = new FileItem();
        fi.setSource( "file" );

        assembly.addFile( fi );

        fi = new FileItem();
        fi.setSource( "file2" );

        assembly.addFile( fi );

        fi = new FileItem();
        fi.setSource( "file3" );

        final Component component = new Component();

        component.addFile( fi );

        new DefaultAssemblyReader().mergeComponentWithAssembly( component, assembly );

        final List<FileItem> fileItems = assembly.getFiles();

        assertNotNull( fileItems );
        assertEquals( 3, fileItems.size() );

        final FileItem rf1 = fileItems.get( 0 );
        assertEquals( "file", rf1.getSource() );

        final FileItem rf2 = fileItems.get( 1 );
        assertEquals( "file2", rf2.getSource() );

        final FileItem rf3 = fileItems.get( 2 );
        assertEquals( "file3", rf3.getSource() );

    }

    public void testMergeComponentWithAssembly_ShouldAddOneDependencySetToExistingListOfTwo()
    {
        final Assembly assembly = new Assembly();

        DependencySet ds = new DependencySet();
        ds.setScope( Artifact.SCOPE_RUNTIME );

        assembly.addDependencySet( ds );

        ds = new DependencySet();
        ds.setScope( Artifact.SCOPE_COMPILE );

        assembly.addDependencySet( ds );

        final Component component = new Component();

        ds = new DependencySet();
        ds.setScope( Artifact.SCOPE_SYSTEM );

        component.addDependencySet( ds );

        new DefaultAssemblyReader().mergeComponentWithAssembly( component, assembly );

        final List<DependencySet> depSets = assembly.getDependencySets();

        assertNotNull( depSets );
        assertEquals( 3, depSets.size() );

        assertEquals( Artifact.SCOPE_RUNTIME, depSets.get( 0 ).getScope() );
        assertEquals( Artifact.SCOPE_COMPILE, depSets.get( 1 ).getScope() );
        assertEquals( Artifact.SCOPE_SYSTEM, depSets.get( 2 ).getScope() );
    }

    public void testMergeComponentWithAssembly_ShouldAddOneRepositoryToExistingListOfTwo()
    {
        final Assembly assembly = new Assembly();

        Repository repo = new Repository();
        repo.setScope( Artifact.SCOPE_RUNTIME );

        assembly.addRepository( repo );

        repo = new Repository();
        repo.setScope( Artifact.SCOPE_COMPILE );

        assembly.addRepository( repo );

        final Component component = new Component();

        repo = new Repository();
        repo.setScope( Artifact.SCOPE_SYSTEM );

        component.addRepository( repo );

        new DefaultAssemblyReader().mergeComponentWithAssembly( component, assembly );

        final List<Repository> depSets = assembly.getRepositories();

        assertNotNull( depSets );
        assertEquals( 3, depSets.size() );

        assertEquals( Artifact.SCOPE_RUNTIME, depSets.get( 0 ).getScope() );
        assertEquals( Artifact.SCOPE_COMPILE, depSets.get( 1 ).getScope() );
        assertEquals( Artifact.SCOPE_SYSTEM, depSets.get( 2 ).getScope() );
    }

    // FIXME: Deep merging should take place...
    // public void
    // testMergeComponentWithAssembly_ShouldMergeOneFileSetToOneOfExistingTwo()
    // {
    // Assembly assembly = new Assembly();
    //
    // FileSet fs = new FileSet();
    // fs.setDirectory( "/dir" );
    // fs.addInclude( "**/test.txt" );
    //
    // assembly.addFileSet( fs );
    //
    // fs = new FileSet();
    // fs.setDirectory( "/other-dir" );
    // assembly.addFileSet( fs );
    //
    // fs = new FileSet();
    // fs.setDirectory( "/dir" );
    // fs.addInclude( "**/components.txt" );
    //
    // Component component = new Component();
    //
    // component.addFileSet( fs );
    //
    // new DefaultAssemblyReader().mergeComponentWithAssembly( component,
    // assembly );
    //
    // List<FileSet> fileSets = assembly.getFileSets();
    //
    // assertNotNull( fileSets );
    // assertEquals( 2, fileSets.size() );
    //
    // FileSet rfs1 = (FileSet) fileSets.get( 0 );
    // assertEquals( "/dir", rfs1.getDirectory() );
    //
    // List includes = rfs1.getIncludes();
    //
    // assertNotNull( includes );
    // assertEquals( 2, includes.size() );
    // assertTrue( includes.contains( "**/test.txt" ) );
    // assertTrue( includes.contains( "**/components.txt" ) );
    //
    // FileSet rfs2 = (FileSet) fileSets.get( 1 );
    // assertEquals( "/other-dir", rfs2.getDirectory() );
    //
    // }

    public void testMergeComponentWithAssembly_ShouldAddOneContainerDescriptorHandlerToExistingListOfTwo()
    {
        final Assembly assembly = new Assembly();

        ContainerDescriptorHandlerConfig cfg = new ContainerDescriptorHandlerConfig();
        cfg.setHandlerName( "one" );

        assembly.addContainerDescriptorHandler( cfg );

        cfg = new ContainerDescriptorHandlerConfig();
        cfg.setHandlerName( "two" );

        assembly.addContainerDescriptorHandler( cfg );

        final Component component = new Component();

        cfg = new ContainerDescriptorHandlerConfig();
        cfg.setHandlerName( "three" );

        component.addContainerDescriptorHandler( cfg );

        new DefaultAssemblyReader().mergeComponentWithAssembly( component, assembly );

        final List<ContainerDescriptorHandlerConfig> result = assembly.getContainerDescriptorHandlers();

        assertNotNull( result );
        assertEquals( 3, result.size() );

        final Iterator<ContainerDescriptorHandlerConfig> it = result.iterator();
        assertEquals( "one", it.next().getHandlerName() );
        assertEquals( "two", it.next().getHandlerName() );
        assertEquals( "three", it.next().getHandlerName() );
    }

    public void testMergeComponentsWithMainAssembly_ShouldAddOneFileSetToAssembly()
        throws IOException, AssemblyReadException
    {
        final Component component = new Component();

        final FileSet fileSet = new FileSet();
        fileSet.setDirectory( "/dir" );

        component.addFileSet( fileSet );

        final File componentFile = fileManager.createTempFile();

        Writer writer = null;

        try
        {
            writer = new OutputStreamWriter( new FileOutputStream( componentFile ), "UTF-8" );

            final ComponentXpp3Writer componentWriter = new ComponentXpp3Writer();

            componentWriter.write( writer, component );
            writer.close();
            writer = null;
        }
        finally
        {
            IOUtil.close( writer );
        }

        final String filename = componentFile.getName();

        final Assembly assembly = new Assembly();
        assembly.addComponentDescriptor( filename );

        final File basedir = componentFile.getParentFile();

        final MavenProject project = new MavenProject();

        expect( configSource.getProject() ).andReturn( project ).anyTimes();
        expect( configSource.getBasedir() ).andReturn( basedir ).anyTimes();
        DefaultAssemblyArchiverTest.setupInterpolators( configSource );
        InterpolationState is = new InterpolationState();
        ComponentXpp3Reader.ContentTransformer componentIp =
            AssemblyInterpolator.componentInterpolator( FixedStringSearchInterpolator.create(), is,
                                                        new ConsoleLogger( Logger.LEVEL_DEBUG, "console" ) );

        mockManager.replayAll();

        new DefaultAssemblyReader().mergeComponentsWithMainAssembly( assembly, null, configSource, componentIp );

        final List<FileSet> fileSets = assembly.getFileSets();

        assertNotNull( fileSets );
        assertEquals( 1, fileSets.size() );

        final FileSet fs = fileSets.get( 0 );

        assertEquals( "/dir", fs.getDirectory() );

        mockManager.verifyAll();
    }

    public void testReadAssembly_ShouldReadAssemblyWithoutComponentsInterpolationOrSiteDirInclusion()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final Assembly assembly = new Assembly();
        assembly.setId( "test" );

        final Assembly result = doReadAssembly( assembly );

        assertEquals( assembly.getId(), result.getId() );

        mockManager.verifyAll();
    }

    public void testReadAssembly_ShouldReadAssemblyWithSiteDirInclusionFromAssemblyWithoutComponentsOrInterpolation()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final Assembly assembly = new Assembly();
        assembly.setId( "test" );

        assembly.setIncludeSiteDirectory( true );

        final StringReader sr = writeToStringReader( assembly );

        final File siteDir = fileManager.createTempDir();

        expect( configSource.getSiteDirectory() ).andReturn( siteDir ).anyTimes();

        final File basedir = fileManager.createTempDir();

        expect( configSource.getBasedir() ).andReturn( basedir ).anyTimes();

        final Model model = new Model();
        model.setGroupId( "group" );
        model.setArtifactId( "artifact" );
        model.setVersion( "version" );

        final MavenProject project = new MavenProject( model );

        expect( configSource.getProject() ).andReturn( project ).anyTimes();

        DefaultAssemblyArchiverTest.setupInterpolators( configSource );

        mockManager.replayAll();

        final Assembly result = new DefaultAssemblyReader().readAssembly( sr, "testLocation", null, configSource );

        assertEquals( assembly.getId(), result.getId() );

        final List<FileSet> fileSets = result.getFileSets();

        assertEquals( 1, fileSets.size() );

        assertEquals( "/site", fileSets.get( 0 ).getOutputDirectory() );

        mockManager.verifyAll();
    }

    public void testReadAssembly_ShouldReadAssemblyWithComponentWithoutSiteDirInclusionOrInterpolation()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final File componentsFile = fileManager.createTempFile();

        final File basedir = componentsFile.getParentFile();
        final String componentsFilename = componentsFile.getName();

        final Component component = new Component();

        final FileSet fs = new FileSet();
        fs.setDirectory( "/dir" );

        component.addFileSet( fs );

        Writer fw = null;

        try
        {
            fw = new OutputStreamWriter( new FileOutputStream( componentsFile ), "UTF-8" );
            new ComponentXpp3Writer().write( fw, component );
            fw.close();
            fw = null;
        }
        finally
        {
            IOUtil.close( fw );
        }

        final Assembly assembly = new Assembly();
        assembly.setId( "test" );

        assembly.addComponentDescriptor( componentsFilename );

        final StringReader sr = writeToStringReader( assembly );

        expect( configSource.getBasedir() ).andReturn( basedir ).anyTimes();

        final Model model = new Model();
        model.setGroupId( "group" );
        model.setArtifactId( "artifact" );
        model.setVersion( "version" );

        final MavenProject project = new MavenProject( model );
        expect( configSource.getProject() ).andReturn( project ).anyTimes();

        DefaultAssemblyArchiverTest.setupInterpolators( configSource );

        mockManager.replayAll();

        final Assembly result = new DefaultAssemblyReader().readAssembly( sr, "testLocation", null, configSource );

        assertEquals( assembly.getId(), result.getId() );

        final List<FileSet> fileSets = result.getFileSets();

        assertEquals( 1, fileSets.size() );

        assertEquals( "/dir", fileSets.get( 0 ).getDirectory() );

        mockManager.verifyAll();
    }

    public void
    testReadAssembly_ShouldReadAssemblyWithComponentInterpolationWithoutSiteDirInclusionOrAssemblyInterpolation()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final File componentsFile = fileManager.createTempFile();

        final File basedir = componentsFile.getParentFile();
        final String componentsFilename = componentsFile.getName();

        final Component component = new Component();

        final FileSet fs = new FileSet();
        fs.setDirectory( "${groupId}-dir" );

        component.addFileSet( fs );

        Writer fw = null;

        try
        {
            fw = new OutputStreamWriter( new FileOutputStream( componentsFile ), "UTF-8" );
            new ComponentXpp3Writer().write( fw, component );
            fw.close();
            fw = null;
        }
        finally
        {
            IOUtil.close( fw );
        }

        final Assembly assembly = new Assembly();
        assembly.setId( "test" );

        assembly.addComponentDescriptor( componentsFilename );

        final StringReader sr = writeToStringReader( assembly );

        expect( configSource.getBasedir() ).andReturn( basedir ).atLeastOnce();

        final Model model = new Model();
        model.setGroupId( "group" );
        model.setArtifactId( "artifact" );
        model.setVersion( "version" );

        final MavenProject project = new MavenProject( model );

        expect( configSource.getProject() ).andReturn( project ).atLeastOnce();

        DefaultAssemblyArchiverTest.setupInterpolators( configSource );

        mockManager.replayAll();

        final Assembly result = new DefaultAssemblyReader().readAssembly( sr, "testLocation", null, configSource );

        assertEquals( assembly.getId(), result.getId() );

        final List<FileSet> fileSets = result.getFileSets();

        assertEquals( 1, fileSets.size() );

        assertEquals( "group-dir", fileSets.get( 0 ).getDirectory() );

        mockManager.verifyAll();
    }

    public void testReadAssembly_ShouldReadAssemblyWithInterpolationWithoutComponentsOrSiteDirInclusion()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final Assembly assembly = new Assembly();
        assembly.setId( "${groupId}-assembly" );

        final Assembly result = doReadAssembly( assembly );

        assertEquals( "group-assembly", result.getId() );

        mockManager.verifyAll();
    }

    private Assembly doReadAssembly( Assembly assembly )
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final StringReader sr = writeToStringReader( assembly );

        final File basedir = fileManager.createTempDir();

        expect( configSource.getBasedir() ).andReturn( basedir ).anyTimes();

        final Model model = new Model();
        model.setGroupId( "group" );
        model.setArtifactId( "artifact" );
        model.setVersion( "version" );

        final MavenProject project = new MavenProject( model );

        expect( configSource.getProject() ).andReturn( project ).anyTimes();

        DefaultAssemblyArchiverTest.setupInterpolators( configSource );

        mockManager.replayAll();

        return new DefaultAssemblyReader().readAssembly( sr, "testLocation", null, configSource );
    }

    public void testGetAssemblyFromDescriptorFile_ShouldReadAssembly()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final Assembly assembly = new Assembly();
        assembly.setId( "test" );

        final FileSet fs = new FileSet();
        fs.setDirectory( "/dir" );

        assembly.addFileSet( fs );

        final File assemblyFile = fileManager.createTempFile();

        final File basedir = assemblyFile.getParentFile();

        expect( configSource.getBasedir() ).andReturn( basedir ).anyTimes();

        expect( configSource.getProject() ).andReturn( new MavenProject( new Model() ) ).anyTimes();

        DefaultAssemblyArchiverTest.setupInterpolators( configSource );

        Writer writer = null;
        try
        {
            writer = new OutputStreamWriter( new FileOutputStream( assemblyFile ), "UTF-8" );
            new AssemblyXpp3Writer().write( writer, assembly );
            writer.close();
            writer = null;
        }
        finally
        {
            IOUtil.close( writer );
        }

        mockManager.replayAll();

        final Assembly result = new DefaultAssemblyReader().getAssemblyFromDescriptorFile( assemblyFile, configSource );

        assertEquals( assembly.getId(), result.getId() );

        mockManager.verifyAll();
    }

    public void testGetAssemblyForDescriptorReference_ShouldReadBinaryAssemblyRef()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final File basedir = fileManager.createTempDir();

        expect( configSource.getBasedir() ).andReturn( basedir ).anyTimes();

        expect( configSource.getProject() ).andReturn( new MavenProject( new Model() ) ).anyTimes();

        expect( configSource.isIgnoreMissingDescriptor() ).andReturn( false ).anyTimes();

        DefaultAssemblyArchiverTest.setupInterpolators( configSource );

        mockManager.replayAll();

        final Assembly result = new DefaultAssemblyReader().getAssemblyForDescriptorReference( "bin", configSource );

        assertEquals( "bin", result.getId() );

        mockManager.verifyAll();
    }

    public void testReadAssemblies_ShouldGetAssemblyDescriptorFromSingleFile()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final Assembly assembly = new Assembly();
        assembly.setId( "test" );

        final FileSet fs = new FileSet();
        fs.setDirectory( "/dir" );

        assembly.addFileSet( fs );

        final File basedir = fileManager.createTempDir();

        final List<String> files = writeAssembliesToFile( Collections.singletonList( assembly ), basedir );

        final String assemblyFile = files.get( 0 );

        final List<Assembly> assemblies = performReadAssemblies( basedir, new String[] { assemblyFile }, null, null );

        assertNotNull( assemblies );
        assertEquals( 1, assemblies.size() );

        final Assembly result = assemblies.get( 0 );

        assertEquals( assembly.getId(), result.getId() );
    }

    public void testReadAssemblies_ShouldFailWhenSingleDescriptorFileMissing()
        throws IOException, InvalidAssemblerConfigurationException
    {
        final File basedir = fileManager.createTempDir();

        final File assemblyFile = new File( basedir, "test.xml" );
        assemblyFile.delete();

        try
        {
            performReadAssemblies( basedir, null, null, null, false );

            fail( "Should fail when descriptor file is missing and ignoreDescriptors == false" );
        }
        catch ( final AssemblyReadException e )
        {
            // expected.
        }
    }

    public void testReadAssemblies_ShouldIgnoreMissingSingleDescriptorFileWhenIgnoreIsConfigured()
        throws IOException, InvalidAssemblerConfigurationException
    {
        final File basedir = fileManager.createTempDir();

        final File assemblyFile = new File( basedir, "test.xml" );
        assemblyFile.delete();

        try
        {
            performReadAssemblies( basedir, null, null, null, true );
        }
        catch ( final AssemblyReadException e )
        {
            fail( "Setting ignoreMissingDescriptor == true (true flag in performReadAssemblies, above) should NOT "
                      + "produce an exception." );
        }
    }

    public void testReadAssemblies_ShouldGetAssemblyDescriptorFromFileArray()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final Assembly assembly1 = new Assembly();
        assembly1.setId( "test" );

        final Assembly assembly2 = new Assembly();
        assembly2.setId( "test2" );

        final List<Assembly> assemblies = new ArrayList<Assembly>();
        assemblies.add( assembly1 );
        assemblies.add( assembly2 );

        final File basedir = fileManager.createTempDir();

        final List<String> files = writeAssembliesToFile( assemblies, basedir );

        final List<Assembly> results =
            performReadAssemblies( basedir, files.toArray( new String[files.size()] ), null, null );

        assertNotNull( results );
        assertEquals( 2, results.size() );

        final Assembly result1 = assemblies.get( 0 );

        assertEquals( assembly1.getId(), result1.getId() );

        final Assembly result2 = assemblies.get( 1 );

        assertEquals( assembly2.getId(), result2.getId() );
    }

    public void testReadAssemblies_ShouldGetAssemblyDescriptorFromMultipleRefs()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final File basedir = fileManager.createTempDir();

        final List<Assembly> assemblies =
            performReadAssemblies( basedir, null, new String[]{ "bin", "src" }, null );

        assertNotNull( assemblies );
        assertEquals( 2, assemblies.size() );

        final Assembly result = assemblies.get( 0 );

        assertEquals( "bin", result.getId() );

        final Assembly result2 = assemblies.get( 1 );

        assertEquals( "src", result2.getId() );
    }

    public void testReadAssemblies_ShouldGetAssemblyDescriptorFromDirectory()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final Assembly assembly1 = new Assembly();
        assembly1.setId( "test" );

        final Assembly assembly2 = new Assembly();
        assembly2.setId( "test2" );

        final List<Assembly> assemblies = new ArrayList<Assembly>();
        assemblies.add( assembly1 );
        assemblies.add( assembly2 );

        final File basedir = fileManager.createTempDir();

        writeAssembliesToFile( assemblies, basedir );

        final List<Assembly> results = performReadAssemblies( basedir, null, null, basedir );

        assertNotNull( results );
        assertEquals( 2, results.size() );

        final Assembly result1 = assemblies.get( 0 );

        assertEquals( assembly1.getId(), result1.getId() );

        final Assembly result2 = assemblies.get( 1 );

        assertEquals( assembly2.getId(), result2.getId() );
    }

    public void testReadAssemblies_ShouldGetTwoAssemblyDescriptorsFromDirectoryWithThreeFiles()
        throws IOException, AssemblyReadException, InvalidAssemblerConfigurationException
    {
        final Assembly assembly1 = new Assembly();
        assembly1.setId( "test" );

        final Assembly assembly2 = new Assembly();
        assembly2.setId( "test2" );

        final List<Assembly> assemblies = new ArrayList<Assembly>();
        assemblies.add( assembly1 );
        assemblies.add( assembly2 );

        final File basedir = fileManager.createTempDir();

        writeAssembliesToFile( assemblies, basedir );

        fileManager.createFile( basedir, "readme.txt", "This is just a readme file, not a descriptor." );

        final List<Assembly> results = performReadAssemblies( basedir, null, null, basedir );

        assertNotNull( results );
        assertEquals( 2, results.size() );

        final Assembly result1 = assemblies.get( 0 );

        assertEquals( assembly1.getId(), result1.getId() );

        final Assembly result2 = assemblies.get( 1 );

        assertEquals( assembly2.getId(), result2.getId() );
    }

    private List<String> writeAssembliesToFile( final List<Assembly> assemblies, final File dir )
        throws IOException
    {
        final List<String> files = new ArrayList<String>();

        for ( final Assembly assembly : assemblies )
        {
            final File assemblyFile = new File( dir, assembly.getId() + ".xml" );

            Writer writer = null;
            try
            {
                writer = new OutputStreamWriter( new FileOutputStream( assemblyFile ), "UTF-8" );
                new AssemblyXpp3Writer().write( writer, assembly );
                writer.close();
                writer = null;
            }
            finally
            {
                IOUtil.close( writer );
            }

            files.add( assemblyFile.getAbsolutePath() );
        }

        return files;
    }

    private List<Assembly> performReadAssemblies( final File basedir, final String[] descriptors,
                                                  final String[] descriptorRefs, final File descriptorDir )
        throws AssemblyReadException, InvalidAssemblerConfigurationException
    {
        return performReadAssemblies( basedir, descriptors, descriptorRefs, descriptorDir, false );
    }

    private List<Assembly> performReadAssemblies( final File basedir, final String[] descriptors,
                                                  final String[] descriptorRefs, final File descriptorDir,
                                                  final boolean ignoreMissing )
        throws AssemblyReadException, InvalidAssemblerConfigurationException
    {
        expect( configSource.getDescriptorReferences() ).andReturn( descriptorRefs );

        expect( configSource.getDescriptors() ).andReturn( descriptors );

        expect( configSource.getDescriptorSourceDirectory() ).andReturn( descriptorDir );

        expect( configSource.getBasedir() ).andReturn( basedir ).anyTimes();

        expect( configSource.getProject() ).andReturn( new MavenProject( new Model() ) ).anyTimes();

        expect( configSource.isIgnoreMissingDescriptor() ).andReturn( ignoreMissing ).anyTimes();
        DefaultAssemblyArchiverTest.setupInterpolators( configSource );

        mockManager.replayAll();

        final List<Assembly> assemblies = new DefaultAssemblyReader().readAssemblies( configSource );

        mockManager.verifyAll();

        return assemblies;
    }

}