diff --git a/thousandeyes-sdk-core/test/sdk_test_support/mock_server.py b/thousandeyes-sdk-core/test/sdk_test_support/mock_server.py
index 8479728d..33e9d38b 100644
--- a/thousandeyes-sdk-core/test/sdk_test_support/mock_server.py
+++ b/thousandeyes-sdk-core/test/sdk_test_support/mock_server.py
@@ -50,8 +50,17 @@ def _normalize_json(value: Any) -> Any:
 
 def _json_body_matches(expected: Any, actual: Any) -> bool:
     if isinstance(expected, dict) and isinstance(actual, dict):
-        filtered_expected = {key: expected[key] for key in actual if key in expected}
-        return _normalize_json(filtered_expected) == _normalize_json(actual)
+        for key in actual:
+            if key not in expected:
+                return False
+            if not _json_body_matches(expected[key], actual[key]):
+                return False
+        return True
+    if isinstance(expected, list) and isinstance(actual, list):
+        if len(expected) != len(actual):
+            return False
+        return all(_json_body_matches(expected_item, actual_item)
+                   for expected_item, actual_item in zip(expected, actual))
     return _normalize_json(expected) == _normalize_json(actual)
 
 
diff --git a/thousandeyes-sdk-core/test/test_mock_server.py b/thousandeyes-sdk-core/test/test_mock_server.py
index 940c05ba..a34a7580 100644
--- a/thousandeyes-sdk-core/test/test_mock_server.py
+++ b/thousandeyes-sdk-core/test/test_mock_server.py
@@ -214,3 +214,38 @@ def test_mock_server_accepts_equivalent_iso8601_datetime_formats(manifest):
         )
         assert status == 201
         assert json.loads(body.decode("utf-8")) == {"ruleId": "1"}
+
+
+def test_mock_server_ignores_readonly_fields_in_nested_request_objects(manifest):
+    nested_manifest = {
+        **manifest,
+        "createAlertRule": OperationExpectation(
+            operation_id="createAlertRule",
+            method="POST",
+            path="/alerts/rules",
+            request_body_example={
+                "ruleName": "Example",
+                "widgets": [
+                    {
+                        "title": "Widget Title",
+                        "id": "read-only-id",
+                        "embedUrl": "https://example.com/embed",
+                    }
+                ],
+            },
+            success_status=201,
+            success_body={"ruleId": "1"},
+        ),
+    }
+    with MockApiServer(nested_manifest) as server:
+        status, body = _request(
+            server,
+            method="POST",
+            path="/alerts/rules",
+            body={
+                "ruleName": "Example",
+                "widgets": [{"title": "Widget Title"}],
+            },
+        )
+        assert status == 201
+        assert json.loads(body.decode("utf-8")) == {"ruleId": "1"}
diff --git a/thousandeyes-sdk-dashboards/test/test_dashboards_api_integration.py b/thousandeyes-sdk-dashboards/test/test_dashboards_api_integration.py
index 52cd5593..c2ff1ea4 100644
--- a/thousandeyes-sdk-dashboards/test/test_dashboards_api_integration.py
+++ b/thousandeyes-sdk-dashboards/test/test_dashboards_api_integration.py
@@ -2916,7 +2916,10 @@ class TestDashboardsApiIntegration(IntegrationTestBase):
 
             _headers=self.te_headers("get_dashboards"),
         )
-        assert_constructed_model_matches_example_json(response, expected_response)
+        self.assertIsInstance(response, list)
+        self.assertEqual(len(response), len(expected_response))
+        for index, element in enumerate(response):
+            assert_constructed_model_matches_example_json(element, expected_response[index])
 
 
     def test_get_dashboards_error_400(self) -> None:
diff --git a/thousandeyes-sdk-streaming/test/test_streaming_api_integration.py b/thousandeyes-sdk-streaming/test/test_streaming_api_integration.py
index d196589f..01fff3ef 100644
--- a/thousandeyes-sdk-streaming/test/test_streaming_api_integration.py
+++ b/thousandeyes-sdk-streaming/test/test_streaming_api_integration.py
@@ -907,7 +907,10 @@ class TestStreamingApiIntegration(IntegrationTestBase):
 
             _headers=self.te_headers("get_streams"),
         )
-        assert_constructed_model_matches_example_json(response, expected_response)
+        self.assertIsInstance(response, list)
+        self.assertEqual(len(response), len(expected_response))
+        for index, element in enumerate(response):
+            assert_constructed_model_matches_example_json(element, expected_response[index])
 
 
     def test_get_streams_error_400(self) -> None: