TypeSafeTemplateDefaultMethodTest.java

package com.github.jknack.handlebars;

import static org.junit.Assert.assertEquals;

import java.io.IOException;
import org.junit.Test;

public class TypeSafeTemplateDefaultMethodTest {

    private static class User {
        private final String name;

        User(final String name) {
            this.name = name;
        }

        public String getName() {
            return name;
        }
    }

    interface UserTemplate extends TypeSafeTemplate<User> {
        default String renderUpperCase(User user) throws IOException {
            return apply(user).toUpperCase();
        }
    }

    @Test
    public void testDefaultMethod() throws Exception {
        User user = new User("Smitty");
        UserTemplate template = new Handlebars()
                .compileInline("Hello {{name}}")
                .as(UserTemplate.class);
        String result = template.renderUpperCase(user);
        assertEquals("HELLO SMITTY", result);
    }
}