n0 += (i + 1) % 2
			n1 += i
		}
		if n0 <= n/10 || n1 <= n/10 {
			t.Errorf("Want pseudorandom, got %d zeros and %d ones (chan cap %d)", n0, n1, chanCap)
		}
	}
}

func TestMultiConsumer(t *testing.T) {
	const nwork = 23
	const niter = 271828

	pn := []int{2, 3, 7, 11, 13, 17, 19, 23, 27, 31}

	q := make(chan int, nwork*3)
	r := make(chan int, nwork*3)

	// workers