From 7c33345d219a567a5c506021b380b15265ff97f0 Mon Sep 17 00:00:00 2001
From: Simon Wisselink <s.wisselink@iwink.nl>
Date: Mon, 23 Dec 2024 01:25:54 +0100
Subject: [PATCH] add test for this

---
 .../UndefinedTemplateVar/UndefinedTemplateVarTest.php  | 10 ++++++++++
 .../A_2/UndefinedTemplateVar/templates/001_empty.tpl   |  1 +
 .../A_2/UndefinedTemplateVar/templates/001_isset.tpl   |  1 +
 3 files changed, 12 insertions(+)
 create mode 100644 tests/UnitTests/A_2/UndefinedTemplateVar/templates/001_empty.tpl
 create mode 100644 tests/UnitTests/A_2/UndefinedTemplateVar/templates/001_isset.tpl

diff --git a/tests/UnitTests/A_2/UndefinedTemplateVar/UndefinedTemplateVarTest.php b/tests/UnitTests/A_2/UndefinedTemplateVar/UndefinedTemplateVarTest.php
index 2b1c6604..e5c6446d 100644
--- a/tests/UnitTests/A_2/UndefinedTemplateVar/UndefinedTemplateVarTest.php
+++ b/tests/UnitTests/A_2/UndefinedTemplateVar/UndefinedTemplateVarTest.php
@@ -83,6 +83,16 @@ class UndefinedTemplateVarTest extends PHPUnit_Smarty
         $this->assertEquals($e1, $e2);
     }
 
+    public function testNoErrorForIssetOrEmpty()
+    {
+        $this->smarty->error_unassigned = true;
+        $e1 = error_reporting();
+        $this->assertEquals('undefined = ', $this->smarty->fetch('001_isset.tpl'));
+        $this->assertEquals('undefined = ', $this->smarty->fetch('001_empty.tpl'));
+        $e2 = error_reporting();
+        $this->assertEquals($e1, $e2);
+    }
+
     public function testUndefinedSimpleVar() {
         $this->smarty->muteUndefinedOrNullWarnings();
         $tpl = $this->smarty->createTemplate('string:a{if $undef}def{/if}b');
diff --git a/tests/UnitTests/A_2/UndefinedTemplateVar/templates/001_empty.tpl b/tests/UnitTests/A_2/UndefinedTemplateVar/templates/001_empty.tpl
new file mode 100644
index 00000000..54bbaa7f
--- /dev/null
+++ b/tests/UnitTests/A_2/UndefinedTemplateVar/templates/001_empty.tpl
@@ -0,0 +1 @@
+undefined = {if empty($foo)}{/if}
\ No newline at end of file
diff --git a/tests/UnitTests/A_2/UndefinedTemplateVar/templates/001_isset.tpl b/tests/UnitTests/A_2/UndefinedTemplateVar/templates/001_isset.tpl
new file mode 100644
index 00000000..d96aac12
--- /dev/null
+++ b/tests/UnitTests/A_2/UndefinedTemplateVar/templates/001_isset.tpl
@@ -0,0 +1 @@
+undefined = {if isset($foo)}{/if}
\ No newline at end of file