assertTrue(chatClient.wasSearchDocumentsCalled());
    }

    // ========== escapeHtml tests ==========

    @Test
    public void test_escapeHtml_null() {
        assertEquals("", chatClient.testEscapeHtml(null));
    }

    @Test
    public void test_escapeHtml_empty() {
        assertEquals("", chatClient.testEscapeHtml(""));
    }