Method concat3

src/test/java/io/reactivex/rxjava3/maybe/MaybeTest.java:1266–1271

()

    }

    @Test
    public void concat3() {
        Maybe.concat(Maybe.just(1), Maybe.just(2), Maybe.just(3))
        .test()
        .assertResult(1, 2, 3);
    }

    @Test
    public void concat3Empty() {