Add a test using mocks

services/src/test/java/eu/profinit/education/flightlog/service/PersonServiceTest.java

@@ -13,7 +13,6 @@ import java.util.List;
 import java.util.Optional;
 
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.AdditionalAnswers;
@@ -102,10 +101,27 @@ public class PersonServiceTest {
 
     }
 
-    @Ignore("Test is not implemented")
     @Test
     public void shouldCreateNewClubMember() {
-        // TODO tutorial-3.4: Implement a test using Mock
+        PersonTo nonExistingClubMember = PersonTo.builder()
+                .memberId(2L)
+                .build();
+
+        User testUser = new User(2L, PERSON_FIRST_NAME, PERSON_LAST_NAME, PERSON_ROLES);
+
+        when(personRepository.findByMemberId(2L)).thenReturn(Optional.empty());
+        when(clubDatabaseDao.getUsers()).thenReturn(Arrays.asList(testUser));
+        when(personRepository.save(any(Person.class))).thenAnswer(AdditionalAnswers.returnsFirstArg());
+
+        // call tested method
+        Person createdPerson = testSubject.getExistingOrCreatePerson(nonExistingClubMember);
+
+        // verify results
+        verify(personRepository, times(1)).save(any(Person.class));
+        assertSame(Person.Type.CLUB_MEMBER, createdPerson.getPersonType());
+        assertSame(2l, createdPerson.getMemberId());
+        assertSame(PERSON_FIRST_NAME, createdPerson.getFirstName());
+        assertSame(PERSON_LAST_NAME, createdPerson.getLastName());
     }
 
 }