### Question:
ComponentHelperImpl implements ComponentHelper { public String generateClassicUIPlaceholder(String classNames, String title) { StringBuilder html = new StringBuilder(); html.append("<img src=\"/libs/cq/ui/resources/0.gif\" "); html.append(" class=\"").append(classNames); html.append("\" "); if (StringUtils.isNotBlank(title)) { html.append("alt=\"").append(title).append("\" "); html.append("title=\"").append(title).append("\""); } html.append("/>"); return html.toString(); }  String generateClassicUIPlaceholder(String classNames, String title); boolean isDesignMode(SlingHttpServletRequest request); boolean isDisabledMode(SlingHttpServletRequest request); boolean isEditMode(SlingHttpServletRequest request); boolean isPreviewMode(SlingHttpServletRequest request); boolean isReadOnlyMode(SlingHttpServletRequest request); boolean isAuthoringMode(SlingHttpServletRequest request); boolean isTouchAuthoringMode(ServletRequest request); boolean printEditBlock(SlingHttpServletRequest request,
                                         SlingHttpServletResponse response,
                                         ComponentEditType.Type editType,
                                         boolean... isConfigured); boolean printEditBlockOrNothing(SlingHttpServletRequest request,
                                          SlingHttpServletResponse response,
                                          ComponentEditType.Type editType,
                                          boolean... isConfigured); boolean printDDEditBlock(SlingHttpServletRequest request,
                                           SlingHttpServletResponse response,
                                           String name,
                                           boolean... isConfigured); boolean printDDEditBlock(SlingHttpServletRequest request,
                                           SlingHttpServletResponse response,
                                           String name,
                                           ComponentEditType.Type editType,
                                           boolean... isConfigured); @SuppressWarnings("squid:S3776") String getEditBlock(SlingHttpServletRequest request,
                                      ComponentEditType.Type editType,
                                      boolean... isConfigured); String getDDEditBlock(SlingHttpServletRequest request, String name, boolean... isConfigured); @SuppressWarnings("squid:S3776") String getDDEditBlock(SlingHttpServletRequest request, String name,
            ComponentEditType.Type editType, boolean... isConfigured); String getEditIconImgTag(ComponentEditType.Type editType);  }### Answer:
@Test public void generateClassicUIPlaceholder() throws Exception { String className = RandomStringUtils.randomAlphanumeric(5); String title = RandomStringUtils.randomAlphanumeric(10); String output = componentHelper.generateClassicUIPlaceholder(className, title); assertThat(output, stringContainsInOrder(Arrays.asList("class=\"" + className + "\"", "alt=\"" + title + "\"", "title=\"" + title + "\""))); }