From c1642490f0793a49a719586bf1e077fc1cd43185 Mon Sep 17 00:00:00 2001
From: Simon Wisselink <s.wisselink@iwink.nl>
Date: Fri, 5 Apr 2024 17:04:03 +0200
Subject: [PATCH] Added some unit test to study consistent behavior on passing
 argument by reference.

---
 ...ArgumentMustBePassedByReference961Test.php | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 tests/UnitTests/TemplateSource/_Issues/ArgumentMustBePassedByReference961Test.php

diff --git a/tests/UnitTests/TemplateSource/_Issues/ArgumentMustBePassedByReference961Test.php b/tests/UnitTests/TemplateSource/_Issues/ArgumentMustBePassedByReference961Test.php
new file mode 100644
index 000000000..ea80b4f84
--- /dev/null
+++ b/tests/UnitTests/TemplateSource/_Issues/ArgumentMustBePassedByReference961Test.php
@@ -0,0 +1,65 @@
+<?php
+
+class ArgumentMustBePassedByReference961Test extends PHPUnit_Smarty
+{
+
+	/**
+	 * @group issue961
+	 */
+	public function testReset()
+	{
+		$smarty = new Smarty();
+		$smarty->registerPlugin('modifier', 'reset', 'reset');
+		$templateStr = "string:{reset(\$ar)}";
+		$smarty->assign('ar', [1,2,3]);
+		$this->assertEquals(
+			'1',
+			$smarty->fetch($templateStr)
+		);
+	}
+
+	/**
+	 * @group issue961
+	 */
+	public function testResetAsModifier()
+	{
+		$smarty = new Smarty();
+		$templateStr = "string:{\$ar|reset}";
+		$smarty->assign('ar', [1,2,3]);
+		$this->assertEquals(
+			'1',
+			$smarty->fetch($templateStr)
+		);
+	}
+
+	/**
+	 * @group issue961
+	 */
+	public function testResetInExpression()
+	{
+		$smarty = new Smarty();
+		$smarty->registerPlugin('modifier', 'reset', 'reset');
+		$templateStr = "string:{if reset(\$ar)}ok{/if}";
+		$smarty->assign('ar', [1,2,3]);
+		$this->assertEquals(
+			'ok',
+			$smarty->fetch($templateStr)
+		);
+	}
+
+	/**
+	 * @group issue961
+	 * @deprecated
+	 */
+	public function testMatch()
+	{
+		$smarty = new Smarty();
+		$smarty->setErrorReporting(E_ALL & ~ E_USER_DEPRECATED);
+		$smarty->registerPlugin('modifier', 'preg_match', 'preg_match');
+		$templateStr = 'string:{assign var="match" value=null}{if preg_match(\'/([a-z]{4})/\', "a test", $match)}{$match.1}{/if}';
+		$this->assertEquals(
+			'test',
+			$smarty->fetch($templateStr)
+		);
+	}
+}
\ No newline at end of file