### Question:
MailUtils { public void sendHtmlMail( Properties props, String to, String from, String subject, String html ) { sendMail( props, to, from, subject, null, html ); }  static Properties getMailProperties( Properties properties ); void sendMail( Properties props, String to, String from, String subject, String plainText,
                          String htmlText ); void sendHtmlMail( Properties props, String to, String from, String subject, String html );  }### Answer:
@Test(expected = IllegalArgumentException.class) public void verifyMissingTemplateFail() { mailUtils.sendHtmlMail( props, "foo@bar", "user@usergrid.com", "", "" ); }