}
	if got, want := tn1.Compare(now), 1; got != want {
		t.Errorf("Now().Add(1*Hour).Compare(Now()) = %d, want %d", got, want)
	}
}

func TestMonotonicSub(t *testing.T) {
	t1 := Unix(1483228799, 995e6)
	SetMono(&t1, 123456789012345)

	t2 := Unix(1483228799, 5e6)
	SetMono(&t2, 123456789012345+10e6)

	t3 := Unix(1483228799, 995e6)