});
    }

    public void test_ofNull() {
        assertEquals(0, (int) StreamUtil.stream().get(s -> s.toArray().length));
        Object[] o = {};
        assertEquals(0, (int) StreamUtil.stream(o).get(s -> s.toArray().length));
        Map<Object, Object> map = new HashMap<Object, Object>();
        assertEquals(0, (int) StreamUtil.stream(map).get(s -> s.toArray().length));
    }

    public void test_ofMap() {

    }

    public static class StreamOf<T> {

        private final Supplier<Stream<T>> supplier;

        public StreamOf(final Supplier<Stream<T>> supplier) {
            this.supplier = supplier;
        }

        public void of(final Consumer<Stream<T>> stream) {
            try (Stream<T> s = supplier.get()) {
                stream.accept(s);