* <p>
     * javadoc -helpfile C:/user/myhelp.html java.awt
     */
    @Nullable @Optional @PathSensitive(NAME_ONLY) @InputFile
    public File getHelpFile() {
        return helpFile.getValue();
    }

    public void setHelpFile(@Nullable File helpFile) {
        this.helpFile.setValue(helpFile);
    }

    public StandardJavadocDocletOptions helpFile(File helpFile) {
        setHelpFile(helpFile);

        assertTrue(options.isNoNavBar());
    }

    @Test
    public void testFluentHelpFile() {
        final File helpFileValue = new File("help-file.txt");
        assertEquals(options, options.helpFile(helpFileValue));
        assertEquals(helpFileValue, options.getHelpFile());
    }

    @Test
    public void testFluentStylesheetFile() {
        final File stylesheetFileValue = new File("stylesheet.css");