From 74642583b5e9800cd681cce66b429ef95337af2e Mon Sep 17 00:00:00 2001
From: upstream <upstream@localhost>
Date: Thu, 3 Sep 2026 14:28:48 +0200
Subject: [PATCH] Upstream webmozarts/assert state of the touched files before
 381c97d823

---
 src/Assert.php       | 10 +-------
 tests/AssertTest.php | 61 --------------------------------------------
 2 files changed, 1 insertion(+), 70 deletions(-)

diff --git a/src/Assert.php b/src/Assert.php
index 8544ea9..31c861b 100644
--- a/src/Assert.php
+++ b/src/Assert.php
@@ -1507,15 +1507,7 @@ class Assert
         static::string($value);
         static::string($pattern);
 
-        if (false === $result = @\preg_match($pattern, $value)) {
-            static::reportInvalidArgument(\sprintf(
-                'The pattern %s could not be evaluated: %s.',
-                static::valueToString($pattern),
-                \preg_last_error_msg()
-            ));
-        }
-
-        if (0 === $result) {
+        if (!\preg_match($pattern, $value)) {
             $message = self::resolveMessage($message);
             static::reportInvalidArgument(\sprintf(
                 $message ?: 'The value %s does not match the expected pattern.',
diff --git a/tests/AssertTest.php b/tests/AssertTest.php
index 1fc73a6..f0ec064 100644
--- a/tests/AssertTest.php
+++ b/tests/AssertTest.php
@@ -19,7 +19,6 @@ use DateTime;
 use DateTimeImmutable;
 use Error;
 use Exception;
-use InvalidArgumentException;
 use LogicException;
 use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
@@ -992,66 +991,6 @@ class AssertTest extends TestCase
         Assert::null(DummyEnum::CaseName, 'Expected null. Got: %s');
     }
 
-    public function testRegexRejectsAnUncompilablePattern(): void
-    {
-        $this->expectException('\InvalidArgumentException');
-        $this->expectExceptionMessage('The pattern "/(/" could not be evaluated: Internal error.');
-
-        Assert::regex('abc', '/(/');
-    }
-
-    public function testRegexSuppressesTheWarningForAnUncompilablePattern(): void
-    {
-        $reported = [];
-        // PHPUnit masks E_WARNING out of error_reporting(); restore it here.
-        $errorReporting = error_reporting(E_ALL);
-        set_error_handler(static function (int $errno, string $message) use (&$reported): bool {
-            // This is what a well behaved error handler does with a suppressed diagnostic.
-            if (0 !== (error_reporting() & $errno)) {
-                $reported[] = $message;
-            }
-
-            return true;
-        });
-
-        try {
-            Assert::regex('abc', '/(/');
-        } catch (InvalidArgumentException) {
-            // The assertion is expected to fail; this test only inspects the reported errors.
-        } finally {
-            restore_error_handler();
-            error_reporting($errorReporting);
-        }
-
-        $this->assertSame([], $reported);
-    }
-
-    public function testRegexDoesNotUseTheCustomMessageForAnUncompilablePattern(): void
-    {
-        $this->expectException('\InvalidArgumentException');
-        $this->expectExceptionMessage('The pattern "/(/" could not be evaluated: Internal error.');
-
-        Assert::regex('abc', '/(/', 'The value %s is not a valid slug.');
-    }
-
-    public function testRegexRejectsAPatternExceedingTheBacktrackLimit(): void
-    {
-        $backtrackLimit = ini_get('pcre.backtrack_limit');
-        ini_set('pcre.backtrack_limit', '100');
-
-        try {
-            Assert::regex(str_repeat('a', 30).'c', '/^(a+)+$/');
-            $this->fail('Expected an InvalidArgumentException to be thrown.');
-        } catch (InvalidArgumentException $e) {
-            $this->assertSame(
-                'The pattern "/^(a+)+$/" could not be evaluated: Backtrack limit exhausted.',
-                $e->getMessage()
-            );
-        } finally {
-            ini_set('pcre.backtrack_limit', $backtrackLimit);
-        }
-    }
-
     #[DataProvider('getMethodsThatUseOtherMethods')]
     public function testMessageIsPassedToInternalCalls(string $method, array $args, string $exceptionMessage): void
     {