@Autowired
        private MockMvc mockMvc;
    @Autowired
    private ObjectMapper mapper;
    @MockBean
    private PlayersService mockPlayersByCountryVOService;

    @Test
    void testGetPlayersByCountry() throws Exception {
        when(mockPlayersByCountryVOService.getAllPlayersByCountry("Bulgaria")).thenReturn(MOCK_PLAYERS_GROUP_BY_COUNTRY.stream());

        var response = mockMvc.perform(get("/api/players?country=Bulgaria").accept(MediaType.APPLICATION_JSON));

        response.andExpect(status().isOk())
                .andExpect(content().contentType(MediaType.APPLICATION_JSON_VALUE))
                .andDo(result -> log.info("HTTP RESPONSE: {}", result.getResponse().getContentAsString()))
                .andExpect(jsonPath("$.length()").value(MOCK_PLAYERS_GROUP_BY_COUNTRY.stream().collect(Collectors.toList()).size()))
                .andExpect(jsonPath("$[*].country",
                        Matchers.hasItems(MOCK_PLAYERS_GROUP_BY_COUNTRY.stream().map(PlayersByCountry::getCountry).collect(Collectors.toList()).toArray())));

        var body = response.andReturn().getResponse().getContentAsString();
        TypeReference<List<PlayersByCountry>> listTypeReference = new TypeReference<List<PlayersByCountry>>() {
        };

        var list = mapper.readValue(body,listTypeReference);
        org.hamcrest.MatcherAssert.assertThat(list,
                Matchers.hasItems(MOCK_PLAYERS_GROUP_BY_COUNTRY.stream().map(players -> Matchers.samePropertyValuesAs(players,"country"))
                        .collect(Collectors.toList()).toArray(new Matcher[]{})));

    }