chore: import upstream snapshot with attribution

python/tests/test_normalize_tool_arguments.py

@@ -0,0 +1,44 @@
+"""Tests for normalize_tool_arguments (issue #2406)."""
+
+import pytest
+
+from composio.exceptions import InvalidParams
+from composio.utils.shared import normalize_tool_arguments
+
+pytestmark = pytest.mark.core
+
+
+class TestNormalizeToolArguments:
+    def test_dict_is_returned_unchanged(self):
+        payload = {"to": "a@b.com", "subject": "hi"}
+        assert normalize_tool_arguments(payload) is payload
+
+    def test_json_string_is_parsed(self):
+        payload = {"to": "a@b.com", "subject": "hi", "body": "Hello"}
+        assert (
+            normalize_tool_arguments(
+                '{"to": "a@b.com", "subject": "hi", "body": "Hello"}'
+            )
+            == payload
+        )
+
+    def test_none_becomes_empty_dict(self):
+        assert normalize_tool_arguments(None) == {}
+
+    @pytest.mark.parametrize("value", ["", "   ", "\n\t "])
+    def test_empty_string_becomes_empty_dict(self, value):
+        assert normalize_tool_arguments(value) == {}
+
+    def test_malformed_json_string_raises(self):
+        with pytest.raises(InvalidParams, match="not valid JSON"):
+            normalize_tool_arguments('{"to": "a@b.com"')
+
+    @pytest.mark.parametrize("value", ["[1, 2, 3]", "42", '"hello"'])
+    def test_non_object_json_raises(self, value):
+        with pytest.raises(InvalidParams, match="must resolve to an object"):
+            normalize_tool_arguments(value)
+
+    @pytest.mark.parametrize("value", [[1, 2, 3], 42, True])
+    def test_non_dict_value_raises(self, value):
+        with pytest.raises(InvalidParams, match="must resolve to an object"):
+            normalize_tool_arguments(value)