/**
     * The code under test. Defaults to {@code sourceSets.main.runtimeClasspath}.
     */
    @Classpath
    public ConfigurableFileCollection getPluginClasspath() {
        return pluginClasspath;
    }

    /**
     * The target output directory used for writing the classpath manifest. Defaults to {@code "$buildDir/$task.name"}.
     */
    @OutputDirectory

    SmokeTestGradleRunner withArguments(String... arguments) {
        delegate.withArguments(arguments)
        return this
    }

    @Override
    List<? extends File> getPluginClasspath() {
        return delegate.getPluginClasspath()
    }

    @Override
    SmokeTestGradleRunner withPluginClasspath() throws InvalidPluginMetadataException {
        delegate.withPluginClasspath()
        return this
    }

     *
     * @return the classpath of plugins to make available to the build under test
     * @since 2.8
     */
    public abstract List<? extends File> getPluginClasspath();

    /**
     * Sets the plugin classpath based on the Gradle plugin development plugin conventions.
     * <p>

            pluginUnderTestMetadataTask.getOutputDirectory().set(project.getLayout().getBuildDirectory().dir(pluginUnderTestMetadataTask.getName()));

            pluginUnderTestMetadataTask.getPluginClasspath().from(classpathForPlugin(project, extension));
        });
    }

    private static Callable<FileCollection> classpathForPlugin(Project project, GradlePluginDevelopmentExtension extension) {

    }

    @Override
    public DefaultGradleRunner withArguments(String... arguments) {
        return withArguments(Arrays.asList(arguments));
    }

    @Override
    public List<? extends File> getPluginClasspath() {
        return classpath.getAsFiles();
    }

    @Override
    public GradleRunner withPluginClasspath() {