public String getHeader(String name) {
                return null;
            }

            @Override
            public java.util.Enumeration<String> getHeaders(String name) {
                return null;
            }

            @Override
            public java.util.Enumeration<String> getHeaderNames() {
                return null;
            }

            @Override

            public List<DataConfig> getDataConfigListByIds(List<String> configIdList) {
                return new ArrayList<>(); // Always return empty for fast tests
            }

            public String store(String sessionId, DataConfig dataConfig) {
                return sessionId + "-" + dataConfig.getId();
            }

            public void remove(String sessionCountId) {
                // No-op
            }

    private static final String ERROR_KEY_SUFFIX = ".error";

    public DefaultUpdateCheckManager() {}

    public DefaultUpdateCheckManager(Logger logger) {
        enableLogging(logger);
    }

    public static final String LAST_UPDATE_TAG = ".lastUpdated";

    private static final String TOUCHFILE_NAME = "resolver-status.properties";

    @Override

  public void testToArrayEmpty() {
    Iterator<String> iterator = Collections.<String>emptyList().iterator();
    String[] array = Iterators.toArray(iterator, String.class);
    assertTrue(Arrays.equals(new String[0], array));
  }

  @GwtIncompatible // Iterators.toArray(Iterator, Class)
  public void testToArraySingleton() {
    Iterator<String> iterator = singletonList("a").iterator();

    @PluginFactory
    public static ErrorToWarnRewritePolicy createPolicy(@PluginAttribute("loggers") final String loggerNamePrefix) {
        final String[] loggerNames = loggerNamePrefix != null
                ? Arrays.stream(loggerNamePrefix.split(",")).map(String::trim).filter(s -> s.length() > 0).toArray(n -> new String[n])
                : new String[0];
        return new ErrorToWarnRewritePolicy(loggerNames);
    }

    Multiset<String> multiset = HashMultiset.create();
    Iterable<String> toRemove = asList("a", "b", "a");
    assertFalse(Multisets.removeOccurrences(multiset, toRemove));
    assertTrue(multiset.isEmpty());
  }

  public void testRemoveOccurrencesMultisetEmpty() {
    Multiset<String> multiset = HashMultiset.create();
    Multiset<String> toRemove = HashMultiset.create(asList("a", "b", "a"));

                new TestStringSortedMapGenerator() {
                  @Override
                  protected SortedMap<String, String> create(Entry<String, String>[] entries) {
                    NavigableMap<String, String> map = new SafeTreeMap<>();
                    for (Entry<String, String> entry : entries) {
                      map.put(entry.getKey(), entry.getValue());
                    }

        @DisplayName("Should get and set key")
        void testGetAndSetKey() {
            String key = "cache-key-123";

            // Test with mock
            when(mockReferralData.getKey()).thenReturn(key);
            doNothing().when(mockReferralData).setKey(key);

            mockReferralData.setKey(key);
            String retrievedKey = mockReferralData.getKey();

            assertEquals(key, retrievedKey);

    // ================
    abstract protected String getNamePrefix();

    abstract protected String getApiPath();

    abstract protected String getKeyProperty();

    abstract protected String getListEndpointSuffix();

    abstract protected String getItemEndpointSuffix();

    abstract protected Map<String, Object> createTestParam(int id);

    abstract protected Map<String, Object> getUpdateMap();

    // ================

pkg net, type Resolver struct, Dial func(context.Context, string, string) (Conn, error)
pkg net, type Resolver struct, StrictErrors bool
pkg net/http, func ServeTLS(net.Listener, Handler, string, string) error
pkg net/http, method (*Server) RegisterOnShutdown(func())
pkg net/http, method (*Server) ServeTLS(net.Listener, string, string) error
pkg net/http/fcgi, func ProcessEnv(*http.Request) map[string]string