diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/Type/LocaleTypeTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/Type/LocaleTypeTest.php
index e5b3ec9d2ab1..e637e6b474ef 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Core/Type/LocaleTypeTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Core/Type/LocaleTypeTest.php
@@ -14,6 +14,7 @@
 use Symfony\Component\Form\ChoiceList\View\ChoiceView;
 use Symfony\Component\Form\Extension\Core\Type\LocaleType;
 use Symfony\Component\Intl\Util\IntlTestHelper;
+use Symfony\Component\Validator\Constraints\Locale;
 
 class LocaleTypeTest extends BaseTypeTest
 {
@@ -52,4 +53,15 @@ public function testInvalidChoiceValuesAreDropped()
 
         $this->assertSame([], $type->loadChoicesForValues(['foo']));
     }
+
+    public function testInvalidLocaleMessage()
+    {
+        $form = $this->factory->create(static::TESTED_TYPE);
+
+        $form->submit('nonexistent-locale');
+
+        $localeConstraint = new Locale();
+
+        $this->assertSame($localeConstraint->message, $form->getErrors()->current()->getMessage());
+    }
 }