--- /dev/null
+<?php
+
+namespace Symfony\Component\Validator\Tests\Mapping\Cache;
+
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Validator\Mapping\Cache\Psr6Cache;
+use Symfony\Component\Validator\Mapping\ClassMetadata;
+
+/**
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class Psr6CacheTest extends AbstractCacheTest
+{
+ protected function setUp()
+ {
+ $this->cache = new Psr6Cache(new ArrayAdapter());
+ }
+
+ public function testNameCollision()
+ {
+ $metadata = new ClassMetadata('Foo\\Bar');
+
+ $this->cache->write($metadata);
+ $this->assertFalse($this->cache->has('Foo_Bar'));
+ }
+}