}

    @Test
    public void test_escapeHtml_greaterThan() {
        assertEquals("a > b", chatClient.testEscapeHtml("a > b"));
    }

    @Test
    public void test_escapeHtml_allSpecialChars() {
        assertEquals("&amp;&lt;&gt;&quot;&#39;", chatClient.testEscapeHtml("&<>\"'"));
    }

    @Test
    public void test_escapeHtml_scriptTag() {