package org.apache.maven.plugins.resources;

/*
 * 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 java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;

import org.apache.maven.execution.DefaultMavenExecutionRequest;
import org.apache.maven.execution.MavenExecutionRequest;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Resource;
import org.apache.maven.plugin.testing.AbstractMojoTestCase;
import org.apache.maven.plugins.resources.stub.MavenProjectResourcesStub;
import org.codehaus.plexus.PlexusContainer;
import org.codehaus.plexus.util.FileUtils;
import org.eclipse.aether.RepositorySystemSession;

public class ResourcesMojoTest
    extends AbstractMojoTestCase
{
    protected final static String defaultPomFilePath = "/target/test-classes/unit/resources-test/plugin-config.xml";

    /**
     * test mojo lookup, test harness should be working fine
     *
     * @throws Exception
     */
    public void testHarnessEnvironment()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );

        assertNotNull( mojo );
    }

    /**
     * @throws Exception
     */
    public void testResourceDirectoryStructure()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourceDirectoryStructure" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.addFile( "file4.txt" );
        project.addFile( "package/file3.nottest" );
        project.addFile( "notpackage/file1.include" );
        project.addFile( "package/test/file1.txt" );
        project.addFile( "notpackage/test/file2.txt" );
        project.setupBuildEnvironment();

        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        assertTrue( FileUtils.fileExists( resourcesDir + "/file4.txt" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/package/file3.nottest" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/notpackage/file1.include" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/package/test" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/notpackage/test" ) );
    }

    /**
     * @throws Exception
     */
    public void testResourceDirectoryStructure_RelativePath()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourceDirectoryStructure_RelativePath" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.setOutputDirectory( "../relative_dir" );
        project.addFile( "file4.txt" );
        project.addFile( "package/file3.nottest" );
        project.addFile( "notpackage/file1.include" );
        project.addFile( "package/test/file1.txt" );
        project.addFile( "notpackage/test/file2.txt" );
        project.setupBuildEnvironment();

        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        assertTrue( FileUtils.fileExists( resourcesDir + "/file4.txt" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/package/file3.nottest" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/notpackage/file1.include" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/package/test" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/notpackage/test" ) );
    }

    /**
     * @throws Exception
     */
    public void testResourceEncoding()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "encoding" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.addFile( "file4.txt" );
        project.setResourceFiltering( 0, true );
        project.setupBuildEnvironment();

        setVariableValueToObject( mojo, "encoding", "UTF-8" );
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        assertTrue( FileUtils.fileExists( resourcesDir + "/file4.txt" ) );
    }

    /**
     * @throws Exception
     */
    public void testResourceInclude()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourceInclude" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.addFile( "file1.include" );
        project.addFile( "file2.exclude" );
        project.addFile( "file3.nottest" );
        project.addFile( "file4.txt" );
        project.addFile( "package/file1.include" );
        project.addFile( "package/file2.exclude" );
        project.addFile( "package/file3.nottest" );
        project.addFile( "package/file4.txt" );
        project.addFile( "notpackage/file1.include" );
        project.addFile( "notpackage/file2.exclude" );
        project.addFile( "notpackage/file3.nottest" );
        project.addFile( "notpackage/file4.txt" );
        project.addFile( "package/test/file1.txt" );
        project.addFile( "package/nottest/file2.txt" );
        project.addFile( "notpackage/test/file1.txt" );
        project.addFile( "notpackage/nottest/file.txt" );
        project.setupBuildEnvironment();

        project.addInclude( "*.include" );
        project.addInclude( "**/test" );
        project.addInclude( "**/test/file*" );
        project.addInclude( "**/package/*.include" );

        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        assertTrue( FileUtils.fileExists( resourcesDir + "/package/test" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/file1.include" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/package/file1.include" ) );
        assertFalse( FileUtils.fileExists( resourcesDir + "/notpackage/file1.include" ) );
        assertFalse( FileUtils.fileExists( resourcesDir + "/notpackage/nottest/file.txt" ) );
    }

    /**
     * @throws Exception
     */
    public void testResourceExclude()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourceExclude" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.addFile( "file1.include" );
        project.addFile( "file2.exclude" );
        project.addFile( "file3.nottest" );
        project.addFile( "file4.txt" );
        project.addFile( "package/file1.include" );
        project.addFile( "package/file2.exclude" );
        project.addFile( "package/file3.nottest" );
        project.addFile( "package/file4.txt" );
        project.addFile( "notpackage/file1.include" );
        project.addFile( "notpackage/file2.exclude" );
        project.addFile( "notpackage/file3.nottest" );
        project.addFile( "notpackage/file4.txt" );
        project.addFile( "package/test/file1.txt" );
        project.addFile( "package/nottest/file2.txt" );
        project.addFile( "notpackage/test/file1.txt" );
        project.addFile( "notpackage/nottest/file.txt" );
        project.setupBuildEnvironment();

        project.addExclude( "**/*.exclude" );
        project.addExclude( "**/nottest*" );
        project.addExclude( "**/notest" );
        project.addExclude( "**/notpackage*" );
        project.addExclude( "**/notpackage*/**" );

        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        assertTrue( FileUtils.fileExists( resourcesDir + "/package/test" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/file1.include" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/package/file1.include" ) );
        assertFalse( FileUtils.fileExists( resourcesDir + "/notpackage/file1.include" ) );
        assertFalse( FileUtils.fileExists( resourcesDir + "/notpackage/nottest/file.txt" ) );
    }

    /**
     * @throws Exception
     */
    public void testResourceTargetPath()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourceTargetPath" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.setTargetPath( "org/apache/maven/plugin/test" );

        project.addFile( "file4.txt" );
        project.addFile( "package/file3.nottest" );
        project.addFile( "notpackage/file1.include" );
        project.addFile( "package/test/file1.txt" );
        project.addFile( "notpackage/test/file2.txt" );
        project.setupBuildEnvironment();

        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        assertTrue( FileUtils.fileExists( resourcesDir + "/org/apache/maven/plugin/test/file4.txt" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/org/apache/maven/plugin/test/package/file3.nottest" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/org/apache/maven/plugin/test/notpackage/file1.include" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/org/apache/maven/plugin/test/package/test" ) );
        assertTrue( FileUtils.fileExists( resourcesDir + "/org/apache/maven/plugin/test/notpackage/test" ) );
    }

    /**
     * @throws Exception
     */
    public void testResourceSystemProperties_Filtering()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourceSystemProperties_Filtering" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.addFile( "file4.txt", "current-working-directory = ${user.dir}" );
        project.setResourceFiltering( 0, true );
        project.setupBuildEnvironment();

        // setVariableValueToObject(mojo,"encoding","UTF-8");
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        setVariableValueToObject( mojo, "escapeWindowsPaths", Boolean.TRUE );
        
        MavenExecutionRequest request = new DefaultMavenExecutionRequest();
        request.setSystemProperties( System.getProperties() );

        MavenSession mavenSession =
            new MavenSession( (PlexusContainer) null, (RepositorySystemSession) null, request, null );
        setVariableValueToObject( mojo, "session", mavenSession );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        File userDir = new File( System.getProperty( "user.dir" ) );
        assertTrue( userDir.exists() );

        Properties props = new Properties();
        final FileInputStream inStream = new FileInputStream( new File( resourcesDir, "file4.txt" ) );
        try
        {
            props.load( inStream );
        }
        finally
        {
            inStream.close();
        }
        File fileFromFiltering = new File( props.getProperty( "current-working-directory" ) );

        assertTrue( fileFromFiltering.getAbsolutePath() + " does not exist.", fileFromFiltering.exists() );
        assertEquals( userDir.getAbsolutePath(), fileFromFiltering.getAbsolutePath() );
    }

    /**
     * @throws Exception
     */
    public void testResourceProjectProperties_Filtering()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourceProjectProperties_Filtering" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.addFile( "file4.txt", "current working directory = ${user.dir}" );
        project.setResourceFiltering( 0, true );
        project.addProperty( "user.dir", "FPJ kami!!!" );
        project.setupBuildEnvironment();

        // setVariableValueToObject(mojo,"encoding","UTF-8");
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();
        String checkString = "current working directory = FPJ kami!!!";

        assertContent( resourcesDir + "/file4.txt", checkString );
    }

    /**
     * @throws Exception
     */
    public void testProjectProperty_Filtering_PropertyDestination()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project =
            new MavenProjectResourcesStub( "resourcePojectProperty_Filtering_PropertyDestination" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.addFile( "file4.properties", "current working directory=${description}" );
        project.setResourceFiltering( 0, true );
        project.setupBuildEnvironment();

        // setup dummy property
        project.setDescription( "c:\\\\org\\apache\\test" );

        // setVariableValueToObject(mojo,"encoding","UTF-8");
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        setVariableValueToObject( mojo, "escapeWindowsPaths", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();
        String checkString = "current working directory=c:\\\\org\\\\apache\\\\test";

        assertContent( resourcesDir + "/file4.properties", checkString );
    }

    /**
     * @throws Exception
     */
    public void testPropertyFiles_Filtering()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourcePropertyFiles_Filtering" );
        List<Resource> resources = project.getBuild()
                                .getResources();
        LinkedList<String> filterList = new LinkedList<String>();

        assertNotNull( mojo );

        project.addFile( "file4.properties", "current working directory=${dir}" );
        project.addFile( "filter.properties", "dir:testdir" );
        project.setResourceFiltering( 0, true );
        project.setupBuildEnvironment();
        filterList.add( project.getResourcesDirectory() + "filter.properties" );

        // setVariableValueToObject(mojo,"encoding","UTF-8");
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", filterList );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();
        String checkString = "current working directory=testdir";

        assertContent( resourcesDir + "/file4.properties", checkString );
    }

    /**
     * @throws Exception
     */
    public void testPropertyFiles_Extra()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourcePropertyFiles_Extra" );
        List<Resource> resources = project.getBuild()
                                .getResources();
        LinkedList<String> filterList = new LinkedList<String>();

        assertNotNull( mojo );

        project.addFile( "extra.properties", "current working directory=${dir}" );
        project.addFile( "filter.properties", "dir:testdir" );
        project.setResourceFiltering( 0, true );
        project.setupBuildEnvironment();
        filterList.add( project.getResourcesDirectory() + "filter.properties" );

        // setVariableValueToObject(mojo,"encoding","UTF-8");
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "filters", filterList );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();
        String checkString = "current working directory=testdir";

        assertContent( resourcesDir + "/extra.properties", checkString );
    }

    /**
     * @throws Exception
     */
    public void testPropertyFiles_MainAndExtra()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "resourcePropertyFiles_MainAndExtra" );
        List<Resource> resources = project.getBuild()
                                .getResources();
        LinkedList<String> filterList = new LinkedList<String>();
        LinkedList<String> extraFilterList = new LinkedList<String>();

        assertNotNull( mojo );

        project.addFile( "main-extra.properties", "current working directory=${dir}; old working directory=${dir2}" );
        project.addFile( "filter.properties", "dir:testdir" );
        project.addFile( "extra-filter.properties", "dir2:testdir2" );
        project.setResourceFiltering( 0, true );

        project.cleanBuildEnvironment();
        project.setupBuildEnvironment();

        filterList.add( project.getResourcesDirectory() + "filter.properties" );
        extraFilterList.add( project.getResourcesDirectory() + "extra-filter.properties" );

        // setVariableValueToObject(mojo,"encoding","UTF-8");
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", filterList );
        setVariableValueToObject( mojo, "filters", extraFilterList );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();

        String resourcesDir = project.getOutputDirectory();
        String checkString = "current working directory=testdir; old working directory=testdir2";

        File file = new File( resourcesDir, "main-extra.properties" );
        assertContent( file.getAbsolutePath(), checkString );
    }

    /**
     * Validates that a Filter token containing a project property will be resolved before the Filter is applied to the
     * resources.
     *
     * @throws Exception
     */
    public void testPropertyFiles_Filtering_TokensInFilters()
        throws Exception
    {
        final File testPom = new File( getBasedir(), defaultPomFilePath );
        final ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        final MavenProjectResourcesStub project =
            new MavenProjectResourcesStub( "resourcePropertyFiles_Filtering_TokensInFilters" );
        final List<Resource> resources = project.getBuild()
                                      .getResources();
        final LinkedList<String> filterList = new LinkedList<String>();

        assertNotNull( mojo );

        project.addFile( "file4.properties", "current working directory=${filter.token}" );
        project.addFile( "filter.properties", "filter.token=${pom-property}" );
        project.setResourceFiltering( 0, true );
        project.addProperty( "pom-property", "foobar" );
        project.setupBuildEnvironment();
        filterList.add( project.getResourcesDirectory() + "filter.properties" );

        // setVariableValueToObject(mojo,"encoding","UTF-8");
        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", filterList );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        mojo.execute();
        final String resourcesDir = project.getOutputDirectory();

        final String checkString = "current working directory=foobar";

        assertContent( resourcesDir + "/file4.properties", checkString );
    }

    public void testWindowsPathEscapingDisabled()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "windows-paths" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.getProperties()
               .setProperty( "basePath", "C:\\Users\\Administrator" );
        project.getProperties()
               .setProperty( "docsPath", "${basePath}\\Documents" );

        project.addFile( "path-listing.txt", "base path is ${basePath}\ndocuments path is ${docsPath}" );
        project.setResourceFiltering( 0, true );

        project.cleanBuildEnvironment();
        project.setupBuildEnvironment();

        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );
        setVariableValueToObject( mojo, "escapeWindowsPaths", Boolean.FALSE );

        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        assertTrue( FileUtils.fileExists( new File( resourcesDir, "path-listing.txt" ).getAbsolutePath() ) );

        assertEquals( "base path is C:\\Users\\Administrator\ndocuments path is C:\\Users\\Administrator\\Documents",
                      FileUtils.fileRead( new File( resourcesDir, "path-listing.txt" ) ) );
    }

    public void testWindowsPathEscapingEnabled()
        throws Exception
    {
        File testPom = new File( getBasedir(), defaultPomFilePath );
        ResourcesMojo mojo = (ResourcesMojo) lookupMojo( "resources", testPom );
        MavenProjectResourcesStub project = new MavenProjectResourcesStub( "windows-paths" );
        List<Resource> resources = project.getBuild()
                                .getResources();

        assertNotNull( mojo );

        project.getProperties()
               .setProperty( "basePath", "C:\\Users\\Administrator" );
        project.getProperties()
               .setProperty( "docsPath", "${basePath}\\Documents" );

        project.addFile( "path-listing.txt", "base path is ${basePath}\ndocuments path is ${docsPath}" );
        project.setResourceFiltering( 0, true );

        project.cleanBuildEnvironment();
        project.setupBuildEnvironment();

        setVariableValueToObject( mojo, "project", project );
        setVariableValueToObject( mojo, "resources", resources );
        setVariableValueToObject( mojo, "outputDirectory", new File( project.getBuild()
                                                                            .getOutputDirectory() ) );
        setVariableValueToObject( mojo, "buildFilters", Collections.emptyList() );
        setVariableValueToObject( mojo, "useBuildFilters", Boolean.TRUE );

        setVariableValueToObject( mojo, "escapeWindowsPaths", Boolean.TRUE );

        mojo.execute();

        String resourcesDir = project.getOutputDirectory();

        assertTrue( FileUtils.fileExists( new File( resourcesDir, "path-listing.txt" ).getAbsolutePath() ) );

        assertEquals(
            "base path is C:\\\\Users\\\\Administrator\ndocuments path is C:\\\\Users\\\\Administrator\\\\Documents",
            FileUtils.fileRead( new File( resourcesDir, "path-listing.txt" ) ) );
    }

    /**
     * Ensures the file exists and its first line equals the given data.
     */
    private void assertContent( String fileName, String data )
        throws IOException
    {
        assertTrue( FileUtils.fileExists( fileName ) );
        try( BufferedReader reader = new BufferedReader( new FileReader( fileName ) ) )
        {
            assertEquals( data, reader.readLine() );
        }
    }

}