Iterable<String> iterable2 = Iterables.unmodifiableIterable(iterable);
    assertSame(iterable, iterable2);
    ImmutableList<String> immutableList = ImmutableList.of("a", "b", "c");
    assertSame(immutableList, Iterables.unmodifiableIterable(immutableList));
    assertSame(immutableList, Iterables.unmodifiableIterable((List<String>) immutableList));
  }

  public void testFrequency_multiset() {

        new EqualsTester().addEqualityGroup(hashFunction1a, hashFunction1b).testEquals();

        // Make sure we're returning not only equal instances, but constants.
        assertSame(hashFunction1a, hashFunction1b);

        assertEquals(hashFunction1a.toString(), hashFunction1b.toString());
      }
    }
  }

  private static boolean shouldHaveKnownHashes(Method method) {

    assertUnboundedBelow(range);
    assertUnboundedAbove(range);
    assertFalse(range.isEmpty());
    assertEquals("(-\u221e..+\u221e)", range.toString());
    assertSame(range, reserializeAndAssert(range));
    assertSame(range, Range.all());
  }

  private static void assertUnboundedBelow(Range<Integer> range) {
    assertFalse(range.hasLowerBound());
    try {
      range.lowerEndpoint();

        String type2 = event.getEventType();
        assertEquals(type1, type2);

        Map<String, Object> source1 = event.toSource();
        Map<String, Object> source2 = event.toSource();
        assertSame(source1, source2);
    }

    // Test edge cases for version numbers
    public void test_versionNumberEdgeCases() {
        TestSearchLogEvent event = new TestSearchLogEvent("id", 0L, "type");

    builder.add("a");
    assertEquals(1, builder.size);
    builder.add("b", "c", "d");
    assertEquals(4, builder.size);
    Object[] table = builder.hashTable;
    assertNotNull(table);
    assertSame(table, ((RegularImmutableSet<String>) builder.build()).table);
  }

  @GwtIncompatible("Builder impl")
  public void testPresizedBuilderForceCopy() {
    for (int expectedSize = 1; expectedSize < 4; expectedSize++) {

    expected = assertThrows(PotentialDeadlockException.class, () -> lockA.lock());
    checkMessage(expected, "LockB -> LockA", "LockA -> LockB");
    // The causal chain should be cached.
    assertSame(firstException.getCause(), expected.getCause());
    // lockA should work after lockB is released.
    lockB.unlock();
    lockA.lock();
  }

  // Tests transitive deadlock detection.

    expected = assertThrows(PotentialDeadlockException.class, () -> lockA.lock());
    checkMessage(expected, "LockB -> LockA", "LockA -> LockB");
    // The causal chain should be cached.
    assertSame(firstException.getCause(), expected.getCause());
    // lockA should work after lockB is released.
    lockB.unlock();
    lockA.lock();
  }

  // Tests transitive deadlock detection.

        assertNotNull(resultData);
        assertEquals("myTransformer", resultData.getTransformerName());
        assertEquals(1, testTransformer.getTransformCallCount());
        assertSame(responseData, testTransformer.getLastResponseData());
    }

    /**
     * Test transform with null name
     */
    public void test_transform_withNullName() {
        // Don't set name (remains null)

 *
 * @author Brian Stoler
 */
@NullUnmarked
public class AbstractFutureTest extends TestCase {
  public void testSuccess() throws ExecutionException, InterruptedException {
    Object value = new Object();
    assertSame(
        value,
        new AbstractFuture<Object>() {
          {
            set(value);
          }
        }.get());
  }

  public void testException() throws InterruptedException {

    Object key = new Object();
    Object value = new Object();
    LoadingCache<Object, Object> cache =
        builder.build(CacheLoader.from(Suppliers.ofInstance(value)));
    assertSame(value, cache.getUnchecked(key));
    assertEquals(0, cache.size());
    assertFalse(cache.asMap().containsKey(key));
  }

  public void testCacheBuilderFrom_string() {
    CacheBuilder<?, ?> fromString =