[Refactoring] Move MaildirMailboxIdDeserializerTest to JUnit 5
diff --git a/mailbox/maildir/src/test/java/org/apache/james/mailbox/maildir/MaildirMailboxIdDeserializerTest.java b/mailbox/maildir/src/test/java/org/apache/james/mailbox/maildir/MaildirMailboxIdDeserializerTest.java
index b1e1667..bed406b 100644
--- a/mailbox/maildir/src/test/java/org/apache/james/mailbox/maildir/MaildirMailboxIdDeserializerTest.java
+++ b/mailbox/maildir/src/test/java/org/apache/james/mailbox/maildir/MaildirMailboxIdDeserializerTest.java
@@ -20,35 +20,37 @@
 package org.apache.james.mailbox.maildir;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 import java.util.UUID;
 
 import org.apache.james.mailbox.store.mail.model.MailboxIdDeserialisationException;
 import org.apache.james.mailbox.store.mail.model.MailboxIdDeserializer;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-public class MaildirMailboxIdDeserializerTest {
+class MaildirMailboxIdDeserializerTest {
 
-    private static final String SERIALIZED_ID = "2f3a4fcc-ca64-36e3-9bcf-33e92dd93135";
-    private static final String MALFORMED_SERIALIZED_ID = "az";
-    private static final MaildirId MAILDIR_ID = MaildirId.of(UUID.fromString(SERIALIZED_ID));
+    static final String SERIALIZED_ID = "2f3a4fcc-ca64-36e3-9bcf-33e92dd93135";
+    static final String MALFORMED_SERIALIZED_ID = "az";
+    static final MaildirId MAILDIR_ID = MaildirId.of(UUID.fromString(SERIALIZED_ID));
 
-    private MailboxIdDeserializer mailboxIdDeserializer;
+    MailboxIdDeserializer mailboxIdDeserializer;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         mailboxIdDeserializer = new MaildirMailboxIdDeserializer();
     }
 
     @Test
-    public void deserializeShouldWork() throws Exception {
+    void deserializeShouldWork() throws Exception {
         assertThat(mailboxIdDeserializer.deserialize(SERIALIZED_ID)).isEqualTo(MAILDIR_ID);
     }
 
-    @Test(expected = MailboxIdDeserialisationException.class)
-    public void deserializeShouldThrowOnMalformedData() throws Exception {
-        mailboxIdDeserializer.deserialize(MALFORMED_SERIALIZED_ID);
+    @Test
+    void deserializeShouldThrowOnMalformedData() {
+        assertThatThrownBy(() -> mailboxIdDeserializer.deserialize(MALFORMED_SERIALIZED_ID))
+            .isInstanceOf(MailboxIdDeserialisationException.class);
     }
 
 }