test: Message

Author: Guilherme Biff Zarelli

core/domain/src/main/java/br/com/helpdev/domain/Message.java

@@ -31,7 +31,7 @@ public class Message {
                  final CommunicationChannel channel, final Collection<Chat> chats) {
     Objects.requireNonNull(body, "Body cant be null");
     if (recipient == null) {
-      throw new InvalidRecipientException("Mensagem precisa de um destinatário, favor informar nome, telefone e e-mail!");
+      throw new InvalidRecipientException("The message needs a recipient");
     }
     this.id = id;
     this.scheduleDate = scheduleDate;

core/domain/src/test/java/br/com/helpdev/domain/MessageTest.java

@@ -1,7 +1,57 @@
 package br.com.helpdev.domain;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import br.com.helpdev.domain.vo.MessageBody;
+import br.com.helpdev.domain.vo.MessageId;
+import br.com.helpdev.domain.vo.Phone;
+import java.util.Optional;
+import org.junit.jupiter.api.Test;
 
 class MessageTest {
 
+  @Test
+  void shouldThrowsInvalidRecipientExceptionWhenRecipientIsNull() {
+    var builder = Message.builder()
+        .body(MessageBody.from("body"));
+
+    assertThatThrownBy(() -> builder.build())
+        .hasMessage("The message needs a recipient");
+  }
+
+
+  @Test
+  void shouldThrowsNullPointerWhenMessageBodyIsNull() {
+    var builder = Message.builder().body(null);
+
+    assertThatThrownBy(() -> builder.build())
+        .hasMessage("Body cant be null");
+  }
+
+  @Test
+  void shouldReturnEmptyIdWhenMessageWasCreatedWithoutThat() {
+    var builder = Message.builder()
+        .body(MessageBody.from("body"))
+        .recipient(Recipient.builder()
+            .phone(Phone.newNumber("1"))
+            .build());
+
+    assertThat(builder.build().getId())
+        .isEqualTo(Optional.empty());
+  }
+
+  @Test
+  void shouldReturnIdWhenMessageWasCreatedWith() {
+    var builder = Message.builder()
+        .body(MessageBody.from("body"))
+        .id(MessageId.from(123L))
+        .recipient(Recipient.builder()
+            .phone(Phone.newNumber("1"))
+            .build());
+
+    assertThat(builder.build().getId())
+        .isEqualTo(Optional.of(MessageId.from(123L)));
+  }
+
 }