assertTrue(result.contains("First"));
        assertTrue(result.contains("Second"));
        assertTrue(result.contains("Third"));
    }

    @Test
    public void test_render_codeInline() {
        String result = markdownRenderer.render("Use `code` here");
        assertTrue(result.contains("<code>code</code>"));
    }

    @Test
    public void test_render_codeBlock() {