spring-boot-rest/spring-di-3/src/test/java/com/baeldung/order/RatingRetrieverUnitTest.java

package com.baeldung.order;


import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

import java.util.List;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.AnnotationConfigContextLoader;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(loader = AnnotationConfigContextLoader.class)
public class RatingRetrieverUnitTest {
    
    @Configuration 
    @ComponentScan(basePackages = {"com.baeldung.order"})
    static class ContextConfiguration {} 
    
    @Autowired
    private List<Rating> ratings;
    
    @Test
    public void givenOrderOnComponents_whenInjected_thenAutowireByOrderValue() {
        assertThat(ratings.get(0).getRating(), is(equalTo(1)));
        assertThat(ratings.get(1).getRating(), is(equalTo(2)));
        assertThat(ratings.get(2).getRating(), is(equalTo(3)));
    }

}