*
     * <strong>Note that late changes to default test directories may NOT be reflected in this collection and {@link #getTestSources()} should be preferred.</strong>
     *
     * For example see docs for {@link IdeaModule}
     *
     * <strong>This field is {@code @Deprecated}, please use {@link #getTestSources()} instead.</strong>
     */
    @Deprecated
    public Set<File> getTestSourceDirs() {
        return testSourceDirs;

        apply plugin: 'language-base'

        @Managed
        interface BuildType {
            ModelMap<FunctionalSourceSet> getComponentSources()
            ModelSet<FunctionalSourceSet> getTestSources()
        }

        class Rules extends RuleSource {
            @Model
            void buildType(BuildType buildType) { }

            @Mutate
            void addSources(BuildType buildType){

        final IdeaModule ideaModule = ideaModelFor(project).getModule();
        testing.getSuites().withType(JvmTestSuite.class).configureEach(suite -> {
            ideaModule.getTestSources().from(suite.getSources().getAllJava().getSourceDirectories());
            ideaModule.getTestResources().from(suite.getSources().getResources().getSourceDirectories());
        });
    }