a[j+1] = b[j+1] - 1
			cmp = Compare(a[:i], b[:i])
			if cmp != 1 {
				t.Errorf(`CompareAbigger(%d,%d) = %d`, i, j, cmp)
			}
			a[j] = b[j]
			a[j+1] = b[j+1]
		}
	}
}

func BenchmarkCompareBytesEqual(b *testing.B) {
	b1 := []byte("Hello Gophers!")
	b2 := []byte("Hello Gophers!")
	for i := 0; i < b.N; i++ {
		if Compare(b1, b2) != 0 {
			b.Fatal("b1 != b2")
		}
	}
}