Java Code Examples for com.beust.jcommander.internal.Sets#newHashSet()

/**
 * Check the NodeTracker against a stock Set<Long>.
 * This is done in ranges that will include numbers significantly greater than 2^32
 */
public void testAgainstSet() {
    final int N = 1000;
    // Set N numbers in each of four different ranges.
    Set<Long> numbers = Sets.newHashSet();
    NodeTracker tracker = new NodeTracker();
    for (long lo : new long[] {1L << 6, 1L << 16, 1L << 34, 1L << 50} ) {
        // Simultaneously set up a basic Set<Long> that will serve as a reference
        // and a NodeTracker that we want to test.
        long hi = 0L;
        for (int i = 0; i < 1000; i++) {
            long n = i * i + lo;
            numbers.add(n);
            tracker.add(n);
            hi = n;
        }
        // Check that the two set implementations match for every value in the range (including unset ones).
        // Note that a Set<Long> containing 0L returns false for contains((int)0).
        for (long i = lo; i < hi; i++) {
            if (tracker.contains(i)) {
                assertTrue(numbers.contains(i));
            } else {
                assertFalse(numbers.contains(i));
            }
            if (numbers.contains(i)) {
                assertTrue(tracker.contains(i));
            } else {
                assertFalse(tracker.contains(i));
            }
        }

        assertEquals(numbers.size(), tracker.cardinality());
    }
}
 

@BeforeClass
@SuppressWarnings("unchecked")
public void setup() throws IOException {
    jsonSource = JsonUtils.jsonToObject(jsonSourceString);
    // added for type cast checking
    Set<String> aSet = Sets.newHashSet();
    aSet.add("i");
    aSet.add("j");
    ((Map) jsonSource).put("s", aSet);
}
 

@Test
public void testLazyPollResult() {
    Supplier<Condition> acceptAll = Suppliers.ofInstance(Conditions.alwaysTrue());
    TestDataProvider testDataProvider = new TestDataProvider();

    final Set<String> expectedIds = Sets.newHashSet();
    
    DatabusEventStore eventStore = mock(DatabusEventStore.class);
    when(eventStore.poll(eq("subscription"), eq(Duration.ofMinutes(1)), any(EventSink.class)))
            .thenAnswer(invocationOnMock -> {
                EventSink sink = (EventSink) invocationOnMock.getArguments()[2];
                // Return 40 updates for records from 40 unique tables
                for (int iteration = 1; iteration <= 40; iteration++) {
                    String id = "a" + iteration;
                    addToPoll(id, "table-" + iteration, "key-" + iteration, false, sink, testDataProvider);
                    expectedIds.add(id);
                }
                return false;
            });
    SubscriptionDAO subscriptionDAO = mock(SubscriptionDAO.class);
    when(subscriptionDAO.getSubscription("subscription")).thenReturn(
            new DefaultOwnedSubscription("subscription", Conditions.alwaysTrue(), new Date(1489090060000L),
                    Duration.ofSeconds(30), "owner"));

    DatabusAuthorizer databusAuthorizer = ConstantDatabusAuthorizer.ALLOW_ALL;

    // Use a clock that advances 1 second after the first call
    Clock clock = mock(Clock.class);
    when(clock.millis())
            .thenReturn(1489090000000L)
            .thenReturn(1489090001000L);

    DefaultDatabus testDatabus = new DefaultDatabus(
            mock(LifeCycleRegistry.class), mock(DatabusEventWriterRegistry.class), testDataProvider, subscriptionDAO,
            eventStore, mock(SubscriptionEvaluator.class), mock(JobService.class),
            mock(JobHandlerRegistry.class), databusAuthorizer, "systemOwnerId", acceptAll, MoreExecutors.sameThreadExecutor(),
            1, key -> 0, new MetricRegistry(), clock);

    PollResult pollResult = testDatabus.poll("owner", "subscription", Duration.ofMinutes(1), 500);
    assertFalse(pollResult.hasMoreEvents());

    Iterator<Event> events = pollResult.getEventIterator();
    Set<String> actualIds = Sets.newHashSet();
    // Read the entire event list
    while (events.hasNext()) {
        actualIds.add(events.next().getEventKey());
    }
    assertEquals(actualIds, expectedIds);
    // Events should have been loaded in 3 batches.  The first was a synchronous batch that loaded the first 10 events.
    // The seconds should have loaded 25 more events.  The third loaded the final 5 events;
    List<List<Coordinate>> executions = testDataProvider.getExecutions();
    assertEquals(executions.size(), 3);
    assertEquals(executions.get(0).size(), 10);
    assertEquals(executions.get(1).size(), 25);
    assertEquals(executions.get(2).size(), 5);
}