symfony · fabpot · Oct 26, 2021 · Oct 23, 2021
diff --git a/src/Symfony/Bundle/FrameworkBundle/Test/BrowserKitAssertionsTrait.php b/src/Symfony/Bundle/FrameworkBundle/Test/BrowserKitAssertionsTrait.php
@@ -94,6 +94,11 @@ public static function assertResponseCookieValueSame(string $name, string $expec
         ), $message);
     }
 
+    public static function assertResponseIsUnprocessable(string $message = ''): void
+    {
+        self::assertThatForResponse(new ResponseConstraint\ResponseIsUnprocessable(), $message);
+    }
+
     public static function assertBrowserHasCookie(string $name, string $path = '/', string $domain = null, string $message = ''): void
     {
         self::assertThatForClient(new BrowserKitConstraint\BrowserHasCookie($name, $path, $domain), $message);

diff --git a/src/Symfony/Component/HttpFoundation/Test/Constraint/ResponseIsUnprocessable.php b/src/Symfony/Component/HttpFoundation/Test/Constraint/ResponseIsUnprocessable.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpFoundation\Test\Constraint;
+
+use PHPUnit\Framework\Constraint\Constraint;
+use Symfony\Component\HttpFoundation\Response;
+
+final class ResponseIsUnprocessable extends Constraint
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function toString(): string
+    {
+        return 'is unprocessable';
+    }
+
+    /**
+     * @param Response $other
+     *
+     * {@inheritdoc}
+     */
+    protected function matches($other): bool
+    {
+        return Response::HTTP_UNPROCESSABLE_ENTITY === $other->getStatusCode();
+    }
+
+    /**
+     * @param Response $other
+     *
+     * {@inheritdoc}
+     */
+    protected function failureDescription($other): string
+    {
+        return 'the Response '.$this->toString();
+    }
+
+    /**
+     * @param Response $other
+     *
+     * {@inheritdoc}
+     */
+    protected function additionalFailureDescription($other): string
+    {
+        return (string) $other;
+    }
+}
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Test/Constraint/ResponseIsUnprocessableTest.php b/src/Symfony/Component/HttpFoundation/Tests/Test/Constraint/ResponseIsUnprocessableTest.php
@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpFoundation\Tests\Test\Constraint;
+
+use PHPUnit\Framework\ExpectationFailedException;
+use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\TestFailure;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpFoundation\Test\Constraint\ResponseIsUnprocessable;
+
+class ResponseIsUnprocessableTest extends TestCase
+{
+    public function testConstraint()
+    {
+        $constraint = new ResponseIsUnprocessable();
+
+        $this->assertTrue($constraint->evaluate(new Response('', 422), '', true));
+        $this->assertFalse($constraint->evaluate(new Response(), '', true));
+    }
+}