package hello.itemservice.validation; import org.assertj.core.api.Assertions; import org.junit.jupiter.api.Test; import org.springframework.validation.DefaultMessageCodesResolver; import org.springframework.validation.MessageCodesResolver; import org.springframework.validation.ObjectError; import static org.assertj.core.api.Assertions.*; public class MessageCodesResolverTest { MessageCodesResolver codesResolver = new DefaultMessageCodesResolver(); @Test void messageCodesResolverObject() { String[] messageCodes = codesResolver.resolveMessageCodes("required", "item"); for (String messageCode : messageCodes) { System.out.println("messageCode = " + messageCode); } assertThat(messageCodes).containsExactly("required.item", "required"); } @Test void messageCodesResolverField() { String[] messageCodes = codesResolver.resolveMessageCodes("required", "item", "itemName", String.class); for (String messageCode : messageCodes) { System.out.println("messageCode = " + messageCode); } assertThat(messageCodes).containsExactly( "required.item.itemName", "required.itemName", "required.java.lang.String", "required" ); } }