From cee55871207a3dd10f001ce89bfc91e86a51b4e3 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Sun, 5 Mar 2023 10:44:39 -0600
Subject: [PATCH] add unit test for primefield infinite loop

---
 tests/Unit/Math/PrimeFieldTest.php | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 tests/Unit/Math/PrimeFieldTest.php

diff --git a/tests/Unit/Math/PrimeFieldTest.php b/tests/Unit/Math/PrimeFieldTest.php
new file mode 100644
index 00000000..24ecfabd
--- /dev/null
+++ b/tests/Unit/Math/PrimeFieldTest.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace phpseclib3\Tests\Unit\Math;
+
+use phpseclib3\Math\BigInteger;
+use phpseclib3\Math\PrimeField;
+use phpseclib3\Tests\PhpseclibTestCase;
+
+class PrimeFieldTest extends PhpseclibTestCase
+{
+    public function testPrimeFieldWithCompositeNumbers()
+    {
+        $this->expectException('UnexpectedValueException');
+
+        $a = new BigInteger('65', 10);
+        $p = new BigInteger('126', 10); // 126 isn't a prime
+
+        $num = new PrimeField($p);
+        $num2 = $num->newInteger($a);
+
+        echo $num2->squareRoot();
+    }
+}