@Test
public void saveReturnsSavedUser() {

    // given
    given(userRepoMock.save(userMock)).willReturn(otherUserMock);
    // when
    var actualUser = repoUserService.save(userMock);
    // then
    assertThat(actualUser).isEqualTo(otherUserMock);
    verify(userRepoMock).save(userMock);
}