From af8c61fc4dda12f7f58834f7aa043e98daceca22 Mon Sep 17 00:00:00 2001
From: Kieran Brahney <kieran@supportpal.com>
Date: Sun, 19 Sep 2021 17:02:46 +0100
Subject: [PATCH] convert warnings to exceptions

---
 tests/BaseTestCase.php                           | 9 +++++++++
 tests/HTMLPurifier/HTMLModule/HTML5/LinkTest.php | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/tests/BaseTestCase.php b/tests/BaseTestCase.php
index 42a0555..5aabd72 100644
--- a/tests/BaseTestCase.php
+++ b/tests/BaseTestCase.php
@@ -22,6 +22,11 @@ class BaseTestCase extends PHPUnit_Framework_TestCase
      */
     private $errors;
 
+    /**
+     * @var bool
+     */
+    protected $convertWarningsToExceptions = false;
+
     protected function setUp()
     {
         $this->config = HTMLPurifier_HTML5Config::create(null);
@@ -41,6 +46,10 @@ protected function setUp()
      */
     public function errorHandler($errno, $message)
     {
+        if ($this->convertWarningsToExceptions) {
+            throw new RuntimeException(sprintf('[%s] %s', $errno, $message));
+        }
+
         $this->errors[] = compact('errno', 'message');
     }
 
diff --git a/tests/HTMLPurifier/HTMLModule/HTML5/LinkTest.php b/tests/HTMLPurifier/HTMLModule/HTML5/LinkTest.php
index 5f6484e..580e6d7 100644
--- a/tests/HTMLPurifier/HTMLModule/HTML5/LinkTest.php
+++ b/tests/HTMLPurifier/HTMLModule/HTML5/LinkTest.php
@@ -2,6 +2,8 @@
 
 class HTMLPurifier_HTMLModule_HTML5_LinkTest extends BaseTestCase
 {
+    protected $convertWarningsToExceptions = true;
+
     protected function setUp()
     {
         parent::setUp();