    @Test
    public void render() throws Exception {

        String templateVariable = "Hello Handlebars!";
        Map<String, Object> model = new HashMap<>();
        model.put("message", templateVariable);
        String expected = String.format("<h1>%s</h1>", templateVariable);
        String actual = new HandlebarsTemplateEngine().render(new ModelAndView(model, "hello.hbs"));
        assertEquals(expected, actual);
    }