Revize 8ca61504

Added missing comments, code refactoring

re #9743

backend/src/test/java/cz/zcu/kiv/backendapi/user/UserServiceImplTest.java

@@ -23 +23 @@
 import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
 import static org.assertj.core.api.AssertionsForClassTypes.assertThatThrownBy;
 import static org.junit.jupiter.api.Assertions.assertTrue;
-import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.Mockito.*;