RxJava: Maybe To Single

EmptyMaybeToSingle1.java

	@Test
	public void testEmptyMaybeToSingle1() {
		Maybe.empty()
				.flatMapSingle(o -> Single.just("result"))
				.test()
				.assertError(NoSuchElementException.class);
	}

EmptyMaybeToSingle2.java

	@Test
	public void testEmptyMaybeToSingle2() {
		Maybe.empty()
				.toSingle()
				.test()
				.assertError(NoSuchElementException.class);
	}