diff --git a/Tests/Functional/Controller/ApiController.php b/Tests/Functional/Controller/ApiController.php
index 68a3bcf..7889404 100644
--- a/Tests/Functional/Controller/ApiController.php
+++ b/Tests/Functional/Controller/ApiController.php
@@ -17,6 +17,7 @@ use Nelmio\ApiDocBundle\Annotation\Model;
 use Nelmio\ApiDocBundle\Annotation\Operation;
 use Nelmio\ApiDocBundle\Annotation\Security;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\Article;
+use Nelmio\ApiDocBundle\Tests\Functional\Entity\SymfonyConstraints;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\User;
 use Nelmio\ApiDocBundle\Tests\Functional\Form\DummyType;
 use Nelmio\ApiDocBundle\Tests\Functional\Form\UserType;
@@ -168,4 +169,16 @@ class ApiController
     public function securityAction()
     {
     }
+
+    /**
+     * @Route("/swagger/symfonyConstraints", methods={"GET"})
+     * @SWG\Response(
+     *     response="201",
+     *     description="Used for symfony constraints test",
+     *     @Model(type=SymfonyConstraints::class)
+     * )
+     */
+    public function symfonyConstraintsAction()
+    {
+    }
 }
diff --git a/Tests/Functional/Entity/JMSUser.php b/Tests/Functional/Entity/JMSUser.php
index 7eb5cab..7a7dc7e 100644
--- a/Tests/Functional/Entity/JMSUser.php
+++ b/Tests/Functional/Entity/JMSUser.php
@@ -13,7 +13,6 @@ namespace Nelmio\ApiDocBundle\Tests\Functional\Entity;
 
 use JMS\Serializer\Annotation as Serializer;
 use Swagger\Annotations as SWG;
-use Symfony\Component\Validator\Constraints as Assert;
 
 /**
  * User.
@@ -28,8 +27,6 @@ class JMSUser
      * @Serializer\Groups({"list"})
      *
      * @SWG\Property(description = "User id", readOnly = true, title = "userid", example=1, default = null)
-     *
-     * @Assert\NotBlank()
      */
     private $id;
 
diff --git a/Tests/Functional/Entity/SymfonyConstraints.php b/Tests/Functional/Entity/SymfonyConstraints.php
new file mode 100644
index 0000000..13d2e08
--- /dev/null
+++ b/Tests/Functional/Entity/SymfonyConstraints.php
@@ -0,0 +1,140 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Entity;
+
+use Symfony\Component\Validator\Constraints as Assert;
+
+class SymfonyConstraints
+{
+    /**
+     * @var int
+     *
+     * @Assert\NotBlank()
+     */
+    private $propertyNotBlank;
+
+    /**
+     * @var int
+     *
+     * @Assert\NotNull()
+     */
+    private $propertyNotNull;
+
+    /**
+     * @var int
+     *
+     * @Assert\Length(min="1")
+     */
+    private $propertyAssertLengthRequired;
+
+    /**
+     * @var int
+     *
+     * @Assert\Length(min="0", max="50")
+     */
+    private $propertyAssertLengthMinAndMax;
+
+    /**
+     * @var int
+     *
+     * @Assert\Regex(pattern="/[a-z]{2}/")
+     */
+    private $propertyRegex;
+
+    /**
+     * @var int
+     *
+     * @Assert\Count(min="0", max="10")
+     */
+    private $propertyCount;
+
+    /**
+     * @var int
+     *
+     * @Assert\Choice(choices={"choice1", "choice2"})
+     */
+    private $propertyChoice;
+
+    /**
+     * @var int
+     *
+     * @Assert\Expression(
+     *     "this.getCategory() in ['php', 'symfony'] or !this.isTechnicalPost()",
+     *     message="If this is a tech post, the category should be either php or symfony!"
+     * )
+     */
+    private $propertyExpression;
+
+    /**
+     * @param int $propertyNotBlank
+     */
+    public function setPropertyNotBlank(int $propertyNotBlank): void
+    {
+        $this->propertyNotBlank = $propertyNotBlank;
+    }
+
+    /**
+     * @param int $propertyNotNull
+     */
+    public function setPropertyNotNull(int $propertyNotNull): void
+    {
+        $this->propertyNotNull = $propertyNotNull;
+    }
+
+    /**
+     * @param int $propertyAssertLengthRequired
+     */
+    public function setPropertyAssertLengthRequired(int $propertyAssertLengthRequired): void
+    {
+        $this->propertyAssertLengthRequired = $propertyAssertLengthRequired;
+    }
+
+    /**
+     * @param int $propertyAssertLengthMinAndMax
+     */
+    public function setPropertyAssertLengthMinAndMax(int $propertyAssertLengthMinAndMax): void
+    {
+        $this->propertyAssertLengthMinAndMax = $propertyAssertLengthMinAndMax;
+    }
+
+    /**
+     * @param int $propertyRegex
+     */
+    public function setPropertyRegex(int $propertyRegex): void
+    {
+        $this->propertyRegex = $propertyRegex;
+    }
+
+    /**
+     * @param int $propertyCount
+     */
+    public function setPropertyCount(int $propertyCount): void
+    {
+        $this->propertyCount = $propertyCount;
+    }
+
+    /**
+     * @param int $propertyChoice
+     */
+    public function setPropertyChoice(int $propertyChoice): void
+    {
+        $this->propertyChoice = $propertyChoice;
+    }
+
+    /**
+     * @param int $propertyExpression
+     */
+    public function setPropertyExpression(int $propertyExpression): void
+    {
+        $this->propertyExpression = $propertyExpression;
+    }
+}
diff --git a/Tests/Functional/FunctionalTest.php b/Tests/Functional/FunctionalTest.php
index 90c531e..1965719 100644
--- a/Tests/Functional/FunctionalTest.php
+++ b/Tests/Functional/FunctionalTest.php
@@ -11,7 +11,6 @@
 
 namespace Nelmio\ApiDocBundle\Tests\Functional;
 
-use EXSyst\Component\Swagger\Operation;
 use EXSyst\Component\Swagger\Tag;
 use Nelmio\ApiDocBundle\Tests\Functional\Form\DummyType;
 
@@ -256,4 +255,50 @@ class FunctionalTest extends WebTestCase
         ];
         $this->assertEquals($expected, $operation->getSecurity());
     }
+
+    public function testSymfonyConstraintDocumentation()
+    {
+        $this->assertEquals([
+            'required' => [
+                'propertyNotBlank',
+                'propertyNotNull',
+                'propertyAssertLengthRequired',
+            ],
+            'properties' => [
+                'propertyNotBlank' => [
+                    'type' => 'integer',
+                ],
+                'propertyNotNull' => [
+                    'type' => 'integer',
+                ],
+                'propertyAssertLengthRequired' => [
+                    'type' => 'integer',
+                    'minLength' => '1',
+                ],
+                'propertyAssertLengthMinAndMax' => [
+                    'type' => 'integer',
+                    'maxLength' => '50',
+                    'minLength' => '0',
+                ],
+                'propertyRegex' => [
+                    'type' => 'integer',
+                    'pattern' => '.*[a-z]{2}.*',
+                ],
+                'propertyCount' => [
+                    'type' => 'integer',
+                    'maxItems' => '10',
+                    'minItems' => '0',
+                ],
+                'propertyChoice' => [
+                    'type' => 'integer',
+                    'enum' => ['choice1', 'choice2'],
+                ],
+                'propertyExpression' => [
+                    'type' => 'integer',
+                    'pattern' => 'If this is a tech post, the category should be either php or symfony!',
+                ],
+            ],
+            'type' => 'object',
+        ], $this->getModel('SymfonyConstraints')->toArray());
+    }
 }
diff --git a/Tests/Functional/JMSFunctionalTest.php b/Tests/Functional/JMSFunctionalTest.php
index 73b3035..c8863a7 100644
--- a/Tests/Functional/JMSFunctionalTest.php
+++ b/Tests/Functional/JMSFunctionalTest.php
@@ -67,9 +67,6 @@ class JMSFunctionalTest extends WebTestCase
                     'type' => 'date',
                 ],
             ],
-            'required' => [
-                'id',
-            ],
         ], $this->getModel('JMSUser')->toArray());
     }
 
@@ -78,7 +75,7 @@ class JMSFunctionalTest extends WebTestCase
         $this->assertEquals([
             'type' => 'object',
             'properties' => [
-                              'id' => ['type' => 'integer'],
+                'id' => ['type' => 'integer'],
                 'user' => ['$ref' => '#/definitions/JMSUser2'],
                 'name' => ['type' => 'string'],
             ],
@@ -99,9 +96,6 @@ class JMSFunctionalTest extends WebTestCase
                     'example' => '1',
                 ],
             ],
-            'required' => [
-                'id',
-            ],
         ], $this->getModel('JMSUser2')->toArray());
     }