fix: use doNothing for void Panache persist() in verification test example

Panache persist() returns void, so when().thenReturn() won't compile.
Replaced with doNothing().when().persist() which is the correct
Mockito pattern for void methods.

docs/ja-JP/skills/quarkus-verification/SKILL.md

@@ -83,11 +83,9 @@ class UserServiceTest {
   @Test
   void createUser_validInput_returnsUser() {
     var dto = new CreateUserDto("Alice", "alice@example.com");
-    var expected = new User();
+
-    expected.id = 1L;
+    // Panacheのpersist()はvoidを返す — doNothing + verifyを使用
-    expected.name = dto.name();
+    doNothing().when(userRepository).persist(any(User.class));
-    
-    when(userRepository.persist(any(User.class))).thenReturn(expected);
 
     User result = userService.create(dto);
 

docs/tr/skills/quarkus-verification/SKILL.md

@@ -83,11 +83,9 @@ class UserServiceTest {
   @Test
   void createUser_validInput_returnsUser() {
     var dto = new CreateUserDto("Alice", "alice@example.com");
-    var expected = new User();
+
-    expected.id = 1L;
+    // Panache persist() void döndürür — doNothing + verify kullanın
-    expected.name = dto.name();
+    doNothing().when(userRepository).persist(any(User.class));
-    
-    when(userRepository.persist(any(User.class))).thenReturn(expected);
 
     User result = userService.create(dto);
 

docs/zh-CN/skills/quarkus-verification/SKILL.md

@@ -83,11 +83,9 @@ class UserServiceTest {
   @Test
   void createUser_validInput_returnsUser() {
     var dto = new CreateUserDto("Alice", "alice@example.com");
-    var expected = new User();
+
-    expected.id = 1L;
+    // Panache的persist()返回void — 使用doNothing + verify
-    expected.name = dto.name();
+    doNothing().when(userRepository).persist(any(User.class));
-    
-    when(userRepository.persist(any(User.class))).thenReturn(expected);
 
     User result = userService.create(dto);
 

skills/quarkus-verification/SKILL.md

@@ -83,11 +83,8 @@ class UserServiceTest {
   @Test
   void createUser_validInput_returnsUser() {
     var dto = new CreateUserDto("Alice", "alice@example.com");
-    var expected = new User();
+
-    expected.id = 1L;
+    // Panache persist() is void — use doNothing + verify
-    expected.name = dto.name();
-    
-    // No stubbing needed — PanacheRepository.persist() is void
     doNothing().when(userRepository).persist(any(User.class));
 
     User result = userService.create(dto);