import com.duke.boot.MainApplication; import lombok.extern.slf4j.Slf4j; import org.junit.jupiter.api.Test; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.test.context.SpringBootTest; @Slf4j @SpringBootTest(classes = MainApplication.class) public class PropertiesTest { @Value("${datasource.password:}") private String password; @Test public void test() { log.info("datasource.password : {}", password); } }