panic(msg)
		}
		t.Log(msg)
	}()
	x := NewInt(1)
	y := NewInt(2)
	// Jacobi should panic when the second argument is even.
	Jacobi(x, y)
	panic(failureMsg)
}

func TestIssue2607(t *testing.T) {
	// This code sequence used to hang.
	n := NewInt(10)
	n.Rand(rand.New(rand.NewSource(9)), n)
}

func TestSqrt(t *testing.T) {
	root := 0
	r := new(Int)