JAVA-20278. Please point me to the tutorial code #13768. (#13923)

Co-authored-by: jogra <joseph.sterling.grah@miles.no>

patterns-modules/clean-architecture/src/test/java/com/baeldung/pattern/cleanarchitecture/usercreation/UserUnitTest.java

@@ -1,15 +1,36 @@
 package com.baeldung.pattern.cleanarchitecture.usercreation;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.*;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.any;
 
 import org.junit.jupiter.api.Test;
 
 class UserUnitTest {
 
+    UserRegisterDsGateway userDsGateway = mock(UserRegisterDsGateway.class);
+    UserPresenter userPresenter = mock(UserPresenter.class);
+    UserFactory userFactory = mock(UserFactory.class);
+    UserInputBoundary interactor = new UserRegisterInteractor(userDsGateway, userPresenter, userFactory);
+
     @Test
     void given123Password_whenPasswordIsNotValid_thenIsFalse() {
         User user = new CommonUser("Baeldung", "123");
 
         assertThat(user.passwordIsValid()).isFalse();
     }
+
+    @Test
+    void givenBaeldungUserAnd123456Password_whenCreate_thenSaveItAndPrepareSuccessView() {
+
+        User user = new CommonUser("baeldung", "123456");
+        UserRequestModel userRequestModel = new UserRequestModel(user.getName(), user.getPassword());
+        when(userFactory.create(anyString(), anyString())).thenReturn(new CommonUser(user.getName(), user.getPassword()));
+
+        interactor.create(userRequestModel);
+
+        verify(userDsGateway, times(1)).save(any(UserDsRequestModel.class));
+        verify(userPresenter, times(1)).prepareSuccessView(any(UserResponseModel.class));
+    }
 }