From 073e2b869df8f43c50fbff8ea8ca89466b74e7f5 Mon Sep 17 00:00:00 2001
From: p1c2u <maciag.artur@gmail.com>
Date: Wed, 4 Mar 2026 00:45:36 +0000
Subject: [PATCH] Add regression test for OAS3.0 array containing null
 unmarshalling

---
 .../unmarshalling/test_unmarshallers.py         | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tests/integration/unmarshalling/test_unmarshallers.py b/tests/integration/unmarshalling/test_unmarshallers.py
index f770eda0..060f19cb 100644
--- a/tests/integration/unmarshalling/test_unmarshallers.py
+++ b/tests/integration/unmarshalling/test_unmarshallers.py
@@ -73,6 +73,23 @@ def test_no_type(self, unmarshallers_factory, value):
 
         assert result == value
 
+    @pytest.mark.parametrize(
+        "factory",
+        [
+            oas30_write_schema_unmarshallers_factory,
+            oas31_schema_unmarshallers_factory,
+        ],
+    )
+    def test_no_type_object_with_array_of_null(self, factory):
+        schema = {}
+        spec = SchemaPath.from_dict(schema)
+        unmarshaller = factory.create(spec)
+        value = {"foo": [None]}
+
+        result = unmarshaller.unmarshal(value)
+
+        assert result == value
+
     @pytest.mark.parametrize(
         "type,value",
         [