From faeb7eee6ac177a07202c52e7057a801fcf96134 Mon Sep 17 00:00:00 2001
From: Harshit Sharma <66710144+harshitethic@users.noreply.github.com>
Date: Wed, 2 Sep 2026 03:47:38 +0530
Subject: [PATCH] test(strict-schema): cover default removal in referenced
 schemas

---
 tests/test_strict_schema_default_refs.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 tests/test_strict_schema_default_refs.py

diff --git a/tests/test_strict_schema_default_refs.py b/tests/test_strict_schema_default_refs.py
new file mode 100644
index 0000000000..089899b5f4
--- /dev/null
+++ b/tests/test_strict_schema_default_refs.py
@@ -0,0 +1,23 @@
+import copy
+
+from agents.strict_schema import ensure_strict_json_schema
+
+
+def test_default_none_is_removed_from_referenced_property():
+    schema = {
+        "$defs": {
+            "Value": {
+                "type": "string",
+                "default": None,
+            }
+        },
+        "type": "object",
+        "properties": {
+            "value": {"$ref": "#/$defs/Value"},
+        },
+    }
+
+    result = ensure_strict_json_schema(copy.deepcopy(schema))
+
+    assert result["$defs"]["Value"] == {"type": "string"}
+    assert result["properties"]["value"] == {"$ref": "#/$defs/Value"}