build.setTestSourceDirectory(alignToBaseDirectory(build.getTestSourceDirectory(), basedir));

            build.setScriptSourceDirectory(alignToBaseDirectory(build.getScriptSourceDirectory(), basedir));

            for (Resource resource : build.getResources()) {
                resource.setDirectory(alignToBaseDirectory(resource.getDirectory(), basedir));
            }

        assertEquals(basedir.getAbsolutePath(), aligned);
    }

    @Test
    void testAlignToBasedirWhereBasedirExpressionIsTheValuePrefix() {
        File basedir = new File(System.getProperty("java.io.tmpdir"), "test").getAbsoluteFile();

        String aligned = new DefaultPathTranslator().alignToBaseDirectory("${basedir}/dir", basedir);

    @Override
    public void alignToBaseDirectory(Model model, File basedir) {
        if (basedir == null) {
            return;
        }

        Build build = model.getBuild();

        if (build != null) {
            build.setDirectory(alignToBaseDirectory(build.getDirectory(), basedir));

            build.setSourceDirectory(alignToBaseDirectory(build.getSourceDirectory(), basedir));

        @Override
        public Object evaluate(String expression) throws ExpressionEvaluationException {
            return evaluate(expression, null);
        }

        @Override
        public File alignToBaseDirectory(File file) {
            if (translator != null) {
                return translator.translatePath(file);
            }
            return file;
        }
    }

import org.apache.maven.model.Model;

/**
 */
@Deprecated
public interface PathTranslator {
    String ROLE = PathTranslator.class.getName();

    void alignToBaseDirectory(Model model, File basedir);

    String alignToBaseDirectory(String path, File basedir);

    void unalignFromBaseDirectory(Model model, File basedir);

    String unalignFromBaseDirectory(String directory, File basedir);

     * @param basedir The base directory to resolve relative paths against, may be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.
     */
    void alignToBaseDirectory(Model model, File basedir, ModelBuildingRequest request);

     * @param basedir The base directory to resolve relative paths against, may be {@code null}.
     * @return The resolved path or {@code null} if the input path was {@code null}.
     */
    String alignToBaseDirectory(String path, File basedir);

        expression = ValueSourceUtils.trimPrefix(expression, expressionPrefixes, true);

        if (projectDir != null && value != null && unprefixedPathKeys.contains(expression)) {
            return pathTranslator.alignToBaseDirectory(String.valueOf(value), projectDir);
        }

        return value;
    }

        if (value != null) {
            expression = ValueSourceUtils.trimPrefix(expression, expressionPrefixes, true);

            if (unprefixedPathKeys.contains(expression)) {
                return pathTranslator.alignToBaseDirectory(String.valueOf(value), projectDir);
            }
        }

        return null;
    }

            expr = expr.substring(2, expr.length() - 1);
        }
        return expr;
    }

    @Override
    public File alignToBaseDirectory(File file) {
        // TODO Copied from the DefaultInterpolator. We likely want to resurrect the PathTranslator or at least a
        // similar component for re-usage
        if (file != null) {