@Override
    public List<BaseballTeam> findAll() {
        return baseballTeamRepository.findAll();
    }
@Test
    void findAll_은_모든_구단을_반환한다() {
        // given
        // when
        List<BaseballTeam> teams = baseballTeamReadService.findAll();

        // then
        assertAll(
                () -> assertThat(teams).hasSize(2),
                () ->
                        assertThat(teams)
                                .anyMatch(
                                        team ->
                                                team.getId().equals(1L)
                                                        && team.getName().equals("두산 베어스")),
                () ->
                        assertThat(teams)
                                .anyMatch(
                                        team ->
                                                team.getId().equals(2L)
                                                        && team.getName().equals("SSG 랜더스")));
    }