mu := NewDRWMutex(ds, "test-unlock-panic-2")
	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
		mu.RUnlock(t.Context()) // Unlock, so -test.count > 1 works
	}()
	mu.RLock(id, source)
	mu.Unlock(t.Context())
}

// Borrowed from rwmutex_test.go
func TestRUnlockPanic(t *testing.T) {
	defer func() {
		if recover() == nil {

		// Initialize accumulator
		e.aggregate = newAggVal(funcName)

		var exprA qProp
		if funcName == aggFnCount {
			if e.Count.StarArg {
				return qProp{isAggregation: true}
			}

			exprA = e.Count.ExprArg.analyze(s)
		} else {
			if len(e.SFunc.ArgsList) != 1 {
				return qProp{err: fmt.Errorf("%s takes exactly one argument", funcName)}
			}

    public final void readFully(final byte b[], final int off, final int len) throws SmbException {
        int n = 0, count;

        do {
            count = this.read(b, off + n, len - n);
            if (count < 0) {
                throw new SmbEndOfFileException();
            }
            n += count;
        } while (n < len);
    }

    @Override
    public int skipBytes(final int n) throws SmbException {

    }

    @Override
    public boolean remove(@Nullable Object key) {
      int count = 0;
      Collection<V> collection = map().remove(key);
      if (collection != null) {
        count = collection.size();
        collection.clear();
        totalSize -= count;
      }
      return count > 0;
    }

    @Override
    public void clear() {
      Iterators.clear(iterator());
    }

    ImmutableLongArray.of().forEach(i -> fail());
    ImmutableLongArray.of(0, 1, 3).subArray(1, 1).forEach(i -> fail());

    AtomicLong count = new AtomicLong(0);
    ImmutableLongArray.of(0, 1, 2, 3)
        .forEach(i -> assertThat(i).isEqualTo(count.getAndIncrement()));
    assertThat(count.get()).isEqualTo(4);
  }

  public void testStream() {
    ImmutableLongArray.of().stream().forEach(i -> fail());

        }
        esCb.request().build(builder);
        SearchResponse response = esCb.build(builder).execute().actionGet(scrollSearchTimeout);
        String scrollId = response.getScrollId();
        int count = 0;
        try {
            while (scrollId != null) {
                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();

    ImmutableDoubleArray.of(0, 1, 3).subArray(1, 1).forEach(i -> fail());

    AtomicInteger count = new AtomicInteger(0);
    ImmutableDoubleArray.of(0, 1, 2, 3)
        .forEach(i -> assertThat(i).isEqualTo((double) count.getAndIncrement()));
    assertThat(count.get()).isEqualTo(4);
  }

  public void testStream() {
    ImmutableDoubleArray.of().stream().forEach(i -> fail());

        int count = 0;
        boolean hasAsync = false;

        while (current != null) {
            count++;
            if (current.isAsync()) {
                hasAsync = true;
            }
            current = current.getNextResponse();
        }

        // Then
        assertEquals(3, count);
        assertTrue(hasAsync);
    }

    @Test

            int count = 0;
            try {
                while (scrollId != null) {
                    final SearchHit[] hits = response.getHits().getHits();
                    if (hits.length == 0) {
                        break;
                    }
                    for (final SearchHit hit : hits) {
                        array[count] = hit.getSourceAsMap();

	return 0, &fs.PathError{Op: "read", Path: d.e.name, Err: errors.New("is a directory")}
}

func (d *openDir) ReadDir(count int) ([]fs.DirEntry, error) {
	n := len(d.files) - d.offset
	if count > 0 && n > count {
		n = count
	}
	if n == 0 {
		if count <= 0 {
			return nil, nil
		}
		return nil, io.EOF
	}
	list := make([]fs.DirEntry, n)
	for i := range list {