@Test
public void toJSON() throws IOException {
Handlebars handlebars = new Handlebars();
handlebars.registerHelper("@json", JSONHelper.INSTANCE);
Template template = handlebars.compile("{{@json this}}");
CharSequence result = template.apply(new Blog("First Post", "..."));
assertEquals("{\"title\":\"First Post\",\"body\":\"...\",\"comments\":[]}", result);
}
@Test(expected = HandlebarsException.class)
public void jsonViewNotFound() throws IOException {
Handlebars handlebars = new Handlebars();
ObjectMapper mapper = new ObjectMapper();
mapper.configure(Feature.DEFAULT_VIEW_INCLUSION, false);
handlebars.registerHelper("@json", new JSONHelper(mapper));
Template template = handlebars.compile("{{@json this view=\"missing.ViewClass\"}}");
CharSequence result = template.apply(new Blog("First Post", "..."));
assertEquals("{\"title\":\"First Post\"}", result);
}
@Test
public void toJSONAliasViewExclusive() throws IOException {
Handlebars handlebars = new Handlebars();
ObjectMapper mapper = new ObjectMapper();
mapper.configure(Feature.DEFAULT_VIEW_INCLUSION, false);
handlebars.registerHelper("@json", new JSONHelper(mapper).viewAlias("myView", Public.class));
Template template = handlebars.compile("{{@json this view=\"myView\"}}");
CharSequence result = template.apply(new Blog("First Post", "..."));
assertEquals("{\"title\":\"First Post\"}", result);
}