diff --git a/tests/Functional/ModelDescriber/Fixtures/NullableScalar.json b/tests/Functional/ModelDescriber/Fixtures/NullableScalar.json
new file mode 100644
index 000000000..d840fb22d
--- /dev/null
+++ b/tests/Functional/ModelDescriber/Fixtures/NullableScalar.json
@@ -0,0 +1,22 @@
+{
+    "properties": {
+        "int": {
+            "type": "integer",
+            "nullable": true
+        },
+        "float": {
+            "type": "number",
+            "format": "float",
+            "nullable": true
+        },
+        "string": {
+            "type": "string",
+            "nullable": true
+        },
+        "bool": {
+            "type": "boolean",
+            "nullable": true
+        }
+    },
+    "type": "object"
+}
\ No newline at end of file
diff --git a/tests/Functional/ModelDescriber/Fixtures/NullableScalar.php b/tests/Functional/ModelDescriber/Fixtures/NullableScalar.php
new file mode 100644
index 000000000..3f7efbd2a
--- /dev/null
+++ b/tests/Functional/ModelDescriber/Fixtures/NullableScalar.php
@@ -0,0 +1,20 @@
+<?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\ModelDescriber\Fixtures;
+
+class NullableScalar
+{
+    public ?int $int;
+    public ?float $float;
+    public ?string $string;
+    public ?bool $bool;
+}
diff --git a/tests/Functional/ModelDescriber/Fixtures/ScalarTypes.json b/tests/Functional/ModelDescriber/Fixtures/ScalarTypes.json
new file mode 100644
index 000000000..ec0496acd
--- /dev/null
+++ b/tests/Functional/ModelDescriber/Fixtures/ScalarTypes.json
@@ -0,0 +1,24 @@
+{
+    "required": [
+        "int",
+        "float",
+        "string",
+        "bool"
+    ],
+    "properties": {
+        "int": {
+            "type": "integer"
+        },
+        "float": {
+            "type": "number",
+            "format": "float"
+        },
+        "string": {
+            "type": "string"
+        },
+        "bool": {
+            "type": "boolean"
+        }
+    },
+    "type": "object"
+}
\ No newline at end of file
diff --git a/tests/Functional/ModelDescriber/Fixtures/ScalarTypes.php b/tests/Functional/ModelDescriber/Fixtures/ScalarTypes.php
new file mode 100644
index 000000000..4a79de112
--- /dev/null
+++ b/tests/Functional/ModelDescriber/Fixtures/ScalarTypes.php
@@ -0,0 +1,20 @@
+<?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\ModelDescriber\Fixtures;
+
+class ScalarTypes
+{
+    public int $int;
+    public float $float;
+    public string $string;
+    public bool $bool;
+}
diff --git a/tests/Functional/ModelDescriber/ObjectModelDescriberTest.php b/tests/Functional/ModelDescriber/ObjectModelDescriberTest.php
index c9a220299..1704069ea 100644
--- a/tests/Functional/ModelDescriber/ObjectModelDescriberTest.php
+++ b/tests/Functional/ModelDescriber/ObjectModelDescriberTest.php
@@ -15,10 +15,6 @@
 use Nelmio\ApiDocBundle\Model\ModelRegistry;
 use Nelmio\ApiDocBundle\ModelDescriber\ObjectModelDescriber;
 use Nelmio\ApiDocBundle\OpenApiPhp\Util;
-use Nelmio\ApiDocBundle\Tests\Functional\ModelDescriber\Fixtures\ArrayOfInt;
-use Nelmio\ApiDocBundle\Tests\Functional\ModelDescriber\Fixtures\ArrayOfString;
-use Nelmio\ApiDocBundle\Tests\Functional\ModelDescriber\Fixtures\ComplexArray;
-use Nelmio\ApiDocBundle\Tests\Functional\ModelDescriber\Fixtures\SimpleClass;
 use Nelmio\ApiDocBundle\Tests\Functional\WebTestCase;
 use OpenApi\Annotations as OA;
 use OpenApi\Annotations\OpenApi;
@@ -68,19 +64,27 @@ public function testItDescribes(string $class, ?string $fixtureDir = null): void
     public static function provideFixtures(): \Generator
     {
         yield [
-            SimpleClass::class,
+            Fixtures\SimpleClass::class,
         ];
 
         yield [
-            ArrayOfInt::class,
+            Fixtures\ArrayOfInt::class,
         ];
 
         yield [
-            ArrayOfString::class,
+            Fixtures\ArrayOfString::class,
         ];
 
         yield [
-            ComplexArray::class
+            Fixtures\ComplexArray::class
+        ];
+
+        yield [
+            Fixtures\ScalarTypes::class
+        ];
+
+        yield [
+            Fixtures\NullableScalar::class
         ];
     }