From 2e4f2ac32238c771d6358c16d63e8d6882c141c4 Mon Sep 17 00:00:00 2001
From: Jan Vernieuwe <jan.vernieuwe@phpro.be>
Date: Mon, 13 May 2019 09:29:58 +0200
Subject: [PATCH] [Validator] add Validation::createCallable()

---
 .../Exception/ValidationFailedException.php   | 40 +++++++++++++++++++
 .../Validator/Tests/ValidationTest.php        | 36 +++++++++++++++++
 .../Component/Validator/Validation.php        | 18 +++++++++
 3 files changed, 94 insertions(+)
 create mode 100644 src/Symfony/Component/Validator/Exception/ValidationFailedException.php
 create mode 100644 src/Symfony/Component/Validator/Tests/ValidationTest.php

diff --git a/src/Symfony/Component/Validator/Exception/ValidationFailedException.php b/src/Symfony/Component/Validator/Exception/ValidationFailedException.php
new file mode 100644
index 000000000000..ca0314cf6e77
--- /dev/null
+++ b/src/Symfony/Component/Validator/Exception/ValidationFailedException.php
@@ -0,0 +1,40 @@
+<?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\Validator\Exception;
+
+use Symfony\Component\Validator\ConstraintViolationListInterface;
+
+/**
+ * @author Jan Vernieuwe <jan.vernieuwe@phpro.be>
+ */
+class ValidationFailedException extends RuntimeException
+{
+    private $violations;
+    private $value;
+
+    public function __construct($value, ConstraintViolationListInterface $violations)
+    {
+        $this->violations = $violations;
+        $this->value = $value;
+        parent::__construct($violations);
+    }
+
+    public function getValue()
+    {
+        return $this->value;
+    }
+
+    public function getViolations(): ConstraintViolationListInterface
+    {
+        return $this->violations;
+    }
+}
diff --git a/src/Symfony/Component/Validator/Tests/ValidationTest.php b/src/Symfony/Component/Validator/Tests/ValidationTest.php
new file mode 100644
index 000000000000..0b8888a5606e
--- /dev/null
+++ b/src/Symfony/Component/Validator/Tests/ValidationTest.php
@@ -0,0 +1,36 @@
+<?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\Validator\Tests\Validator;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Validator\Constraints\Email;
+use Symfony\Component\Validator\Exception\ValidationFailedException;
+use Symfony\Component\Validator\Validation;
+
+/**
+ * @author Jan Vernieuwe <jan.vernieuwe@phpro.be>
+ */
+class ValidationTest extends TestCase
+{
+    public function testCreateCallableValid()
+    {
+        $validator = Validation::createCallable(new Email());
+        $this->assertEquals('test@example.com', $validator('test@example.com'));
+    }
+
+    public function testCreateCallableInvalid()
+    {
+        $validator = Validation::createCallable(new Email());
+        $this->expectException(ValidationFailedException::class);
+        $validator('test');
+    }
+}
diff --git a/src/Symfony/Component/Validator/Validation.php b/src/Symfony/Component/Validator/Validation.php
index dbf1dbc0ed7d..a070242e60de 100644
--- a/src/Symfony/Component/Validator/Validation.php
+++ b/src/Symfony/Component/Validator/Validation.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Validator;
 
+use Symfony\Component\Validator\Exception\ValidationFailedException;
 use Symfony\Component\Validator\Validator\ValidatorInterface;
 
 /**
@@ -20,6 +21,23 @@
  */
 final class Validation
 {
+    /**
+     * Creates a callable chain of constraints.
+     */
+    public static function createCallable(Constraint ...$constraints): callable
+    {
+        $validator = self::createValidator();
+
+        return static function ($value) use ($constraints, $validator) {
+            $violations = $validator->validate($value, $constraints);
+            if (0 !== $violations->count()) {
+                throw new ValidationFailedException($value, $violations);
+            }
+
+            return $value;
+        };
+    }
+
     /**
      * Creates a new validator.
      *