code: public static void assertAccessibility(HtmlPage htmlPage, Testable testable) {
          assertThat(htmlPage, is(compliantTo(testable)));
      }
docs: JUnit Assertion to verify a {@link com.gargoylesoftware.htmlunit.html.HtmlPage} instance for accessibility.
  
  @param htmlPage {@link com.gargoylesoftware.htmlunit.html.HtmlPage} instance
  @param testable rule(s) to apply