assertEquals(0L, map.get("1"));
    assertEquals(0L, map.get("2"));
    assertEquals(0L, map.get("3"));

    map.putAll(in);
    assertFalse(map.isEmpty());
    assertEquals(3, map.size());
    assertTrue(map.containsKey("1"));
    assertTrue(map.containsKey("2"));
    assertTrue(map.containsKey("3"));
    assertEquals(1L, map.get("1"));
    assertEquals(2L, map.get("2"));

    sort(values, sortedSet.comparator());

    // some tests assume SEVERAL == 3
    if (values.size() >= 1) {
      a = values.get(0);
      if (values.size() >= 3) {
        b = values.get(1);
        c = values.get(2);
      }
    }
  }

  @CollectionSize.Require(ZERO)
  public void testEmptySetFirst() {
    assertThrows(NoSuchElementException.class, () -> sortedSet.first());
  }

        assertEquals(5000L, events.get(0).createdTime);
        assertEquals("web_config", events.get(0).data);
        assertEquals("dict_updated", events.get(1).name);
        assertEquals("node3@host3", events.get(1).instanceId);
        assertEquals(6000L, events.get(1).createdTime);
    }

    @Test
    public void test_fetchNewEvents_updatesLastEventCheckTime() {
        setupMockFessConfig();

        final List<String> hostPortList = DfStringUtil.splitListTrimmed(hostAndPort, ":");
        motorbike.registerConnectionInfo(hostPortList.get(0), Integer.parseInt(hostPortList.get(1)));
        motorbike.registerReturnPath(fessConfig.getMailReturnPath());
        parkingLot.registerMotorbikeAsMain(motorbike);
        return parkingLot;
    }

        chain.update(user2);
        chain.update(user3);

        assertEquals(3, chain.updateCalls.size());
        assertEquals(user1, chain.updateCalls.get(0));
        assertEquals(user2, chain.updateCalls.get(1));
        assertEquals(user3, chain.updateCalls.get(2));
    }

    // Test update with exception handling
    @Test
    public void test_update_withException() {

        list.sort((s1, s2) -> s1.compareTo(s2));
        assertThat(list.size(), is(2));
        assertThat(list.get(0), is("junit/textui/ResultPrinter.class"));
        assertThat(list.get(1), is("junit/textui/TestRunner.class"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testFromRootPackage_FileSystem() throws Exception {

        List<LogNotificationEvent> events = helper.drainAll();
        assertEquals(2, events.size());
        assertEquals("message1", events.get(0).getMessage());
        assertEquals("message2", events.get(1).getMessage());
    }

    @Test
    public void test_drainAll_empty() {
        LogNotificationHelper helper = new LogNotificationHelper();
        List<LogNotificationEvent> events = helper.drainAll();

        ComponentUtil.doInitProcesses(Runnable::run);

        assertEquals(2, executionOrder.size());
        assertEquals("first", executionOrder.get(0));
        assertEquals("second", executionOrder.get(1));

        ComponentUtil.processAfterContainerInit(() -> executionOrder.add("third"));
        assertEquals(2, executionOrder.size());
    }

    @Test
    public void test_available_withSystemHelper() {

        if (leftRelation == 0) {
            return true;
        }

        if (leftRelation < 0) {
            return false;
        }

        return getRelationOrder(value, range.get(1), false) <= 0;
    }

    private static int getRelationOrder(String value, RangeValue rangeValue, boolean isLeft) {
        if (rangeValue.value.length() <= 0) {
            return isLeft ? 1 : -1;
        }

        List<String> result = MapValueExtractor.getStringList(map, "list");
        assertEquals(3, result.size());
        assertEquals("a", result.get(0));
        assertEquals("b", result.get(1));
        assertEquals("c", result.get(2));

        List<String> empty = MapValueExtractor.getStringList(map, "empty");
        assertTrue(empty.isEmpty());