convention.libsDirName == 'libs'
        convention.libsDirectory.getAsFile().get() == project.layout.buildDirectory.dir('libs').get().asFile
    }

    def "dirs relative to build dir"() {
        when:
        project.buildDir = project.file('mybuild')
        convention.distsDirName = 'mydists'
        convention.libsDirName = 'mylibs'

        then:

    public String getLibsDirName() {
        logDeprecation();
        return delegate.getLibsDirName();
    }

    @Override
    public void setLibsDirName(String libsDirName) {
        logDeprecation();
        delegate.setLibsDirName(libsDirName);
    }

    @Override
    public String getArchivesBaseName() {
        logDeprecation();
        return delegate.getArchivesBaseName();
    }

    @Override

        logPropertyDeprecation("libsDirName", "libsDirectory");
        File buildDir = project.getLayout().getBuildDirectory().get().getAsFile();
        File libsDir = getLibsDirectory().get().getAsFile();
        return RelativePathUtil.relativePath(buildDir, libsDir);
    }

    @Override
    @Deprecated
    public void setLibsDirName(String libsDirName) {

            <tr>
                <td>libsDirectory</td>
                <td><literal><replaceable>${project.layout.buildDirectory}</replaceable>/<replaceable>${project.libsDirName}</replaceable></literal></td>
            </tr>
            <tr>
                <td>libsDirName</td>
                <td><literal>'libs'</literal></td>
            </tr>
            <tr>
                <td>archivesBaseName</td>

    }

    @Override
    public String getLibsDirName() {
        return extension.getLibsDirName();
    }

    @Override
    public void setLibsDirName(String libsDirName) {
        extension.setLibsDirName(libsDirName);
    }

    @Override
    public String getArchivesBaseName() {
        return extension.getArchivesBaseName();
    }

    @Override

    /**
     * The name for the libs directory. This in interpreted relative to the project' build directory.
     */
    public abstract String getLibsDirName();

    public abstract void setLibsDirName(String libsDirName);

    /**
     * The base name to use for archive files.
     */
    public abstract String getArchivesBaseName();

    public abstract void setArchivesBaseName(String archivesBaseName);

     *
     * @deprecated Use {@link #getLibsDirectory()}. This method is scheduled for removal in Gradle 9.0.
     */
    @Deprecated
    void setLibsDirName(String libsDirName);

    /**
     * This method is only here to maintain compatibility with existing builds.
     *
     * @deprecated Use {@link #getArchivesName()}. This method is scheduled for removal in Gradle 9.0.
     */

`(read-only) File testReportDir`::
The directory to generate the test report into. Default value: `__reportsDir__/testReportDirName`

`String libsDirName`::
The name of the directory to generate libraries into, relative to the build directory. Default value: `libs`

`(read-only) File libsDir`::

The conventions are replaced by the `base { }` configuration block backed by link:{groovyDslPath}/org.gradle.api.plugins.BasePluginExtension.html[BasePluginExtension].
The old convention object defines the `distsDirName`, `libsDirName` and `archivesBaseName` properties with simple getter and setter methods.
Those methods are available in the extension only to maintain backwards compatibility.
Build scripts should solely use the properties of type `Property`: