assertEquals(expectedHash, in.hash());
  }

  public void testChecksForNull() throws Exception {
    NullPointerTester tester = new NullPointerTester();

    tester.testAllPublicInstanceMethods(new HashingInputStream(Hashing.md5(), buffer));
    tester.testAllPublicStaticMethods(HashingInputStream.class);
    tester.testAllPublicConstructors(HashingInputStream.class);
  }

    assertEquals(expectedHash, in.hash());
  }

  public void testChecksForNull() throws Exception {
    NullPointerTester tester = new NullPointerTester();

    tester.testAllPublicInstanceMethods(new HashingInputStream(Hashing.md5(), buffer));
    tester.testAllPublicStaticMethods(HashingInputStream.class);
    tester.testAllPublicConstructors(HashingInputStream.class);
  }

    return concat(strongImplementations(), weakImplementations());
  }

  public void testNull() throws Exception {
    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {
    // not bothering testing all variations, since we know they share implementations
    assertTrue(Striped.lock(100).size() >= 100);

    Converter<String, TestEnum> converter = Enums.stringConverter(TestEnum.class);
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(converter);
  }

  @GwtIncompatible // stringConverter
  public void testStringConverter_nullConversions() {
    Converter<String, TestEnum> converter = Enums.stringConverter(TestEnum.class);

    return concat(strongImplementations(), weakImplementations());
  }

  public void testNull() throws Exception {
    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {
    // not bothering testing all variations, since we know they share implementations
    assertTrue(Striped.lock(100).size() >= 100);

    tester.testAllPublicStaticMethods(ImmutableMap.class);
    tester.testAllPublicInstanceMethods(new ImmutableMap.Builder<Object, Object>());
    tester.testAllPublicInstanceMethods(ImmutableMap.of());
    tester.testAllPublicInstanceMethods(ImmutableMap.of("one", 1));
    tester.testAllPublicInstanceMethods(ImmutableMap.of("one", 1, "two", 2, "three", 3));
  }

public class FakeTickerTest extends TestCase {

  @GwtIncompatible // NullPointerTester
  public void testNullPointerExceptions() {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(new FakeTicker());
  }

  @GwtIncompatible // java.time.Duration
  @IgnoreJRERequirement // TODO: b/288085449 - Remove this once we use library-desugaring scents.
  public void testAdvance() {

    NullPointerTester npTester = new NullPointerTester();
    npTester.testAllPublicConstructors(ThreadFactoryBuilder.class);
    npTester.testAllPublicStaticMethods(ThreadFactoryBuilder.class);
    npTester.testAllPublicInstanceMethods(builder);
  }

  private static String rootLocaleFormat(String format, Object... args) {
    return String.format(Locale.ROOT, format, args);
  }

    tester.testAllPublicConstructors(EvictingQueue.class);
    EvictingQueue<String> queue = EvictingQueue.create(5);
    // The queue must be non-empty so it throws a NPE correctly
    queue.add("one");
    tester.testAllPublicInstanceMethods(queue);
  }

  public void testSerialization() {
    EvictingQueue<String> original = EvictingQueue.create(5);
    original.add("one");
    original.add("two");
    original.add("three");

    tester.testAllPublicInstanceMethods(isWooString);
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testContains_nulls() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    Predicate<CharSequence> isWooPattern = Predicates.contains(Pattern.compile("Woo"));

    tester.testAllPublicInstanceMethods(isWooPattern);
  }