--- /dev/null
+<?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;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\DependencyInjection\Container;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\Constraints\Blank as BlankConstraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\ContainerConstraintValidatorFactory;
+
+class ContainerConstraintValidatorFactoryTest extends TestCase
+{
+ public function testGetInstanceCreatesValidator()
+ {
+ $factory = new ContainerConstraintValidatorFactory(new Container());
+ $this->assertInstanceOf(DummyConstraintValidator::class, $factory->getInstance(new DummyConstraint()));
+ }
+
+ public function testGetInstanceReturnsExistingValidator()
+ {
+ $factory = new ContainerConstraintValidatorFactory(new Container());
+ $v1 = $factory->getInstance(new BlankConstraint());
+ $v2 = $factory->getInstance(new BlankConstraint());
+ $this->assertSame($v1, $v2);
+ }
+
+ public function testGetInstanceReturnsService()
+ {
+ $validator = new DummyConstraintValidator();
+ $container = new Container();
+ $container->set(DummyConstraintValidator::class, $validator);
+
+ $factory = new ContainerConstraintValidatorFactory($container);
+
+ $this->assertSame($validator, $factory->getInstance(new DummyConstraint()));
+ }
+
+ /**
+ * @expectedException \Symfony\Component\Validator\Exception\ValidatorException
+ */
+ public function testGetInstanceInvalidValidatorClass()
+ {
+ $constraint = $this->getMockBuilder(Constraint::class)->getMock();
+ $constraint
+ ->expects($this->once())
+ ->method('validatedBy')
+ ->will($this->returnValue('Fully\\Qualified\\ConstraintValidator\\Class\\Name'));
+
+ $factory = new ContainerConstraintValidatorFactory(new Container());
+ $factory->getInstance($constraint);
+ }
+}
+
+class DummyConstraint extends Constraint
+{
+ public function validatedBy()
+ {
+ return DummyConstraintValidator::class;
+ }
+}
+
+class DummyConstraintValidator extends ConstraintValidator
+{
+ public function validate($value, Constraint $constraint)
+ {
+ }
+}