diff --git a/tests/integration/test_errors.py b/tests/integration/test_errors.py
index a3317e49..fec109e7 100644
--- a/tests/integration/test_errors.py
+++ b/tests/integration/test_errors.py
@@ -40,10 +40,14 @@ def test_invalid_ticker_returns_not_found(
     def test_malformed_params_returns_validation_error(
         self, sync_client: KalshiClient
     ) -> None:
-        """Malformed request params should raise KalshiValidationError (400)."""
-        # Use an obviously invalid limit value
+        """Malformed request params should raise KalshiValidationError (400).
+
+        Uses a malformed cursor — the SDK passes it verbatim to the server,
+        which rejects it with a 400. (Numeric range checks like negative
+        limit are now enforced client-side via ValueError per #214.)
+        """
         with pytest.raises(KalshiValidationError) as exc_info:
-            sync_client.markets.list(limit=-1)
+            sync_client.markets.list(cursor="!!!not-a-valid-cursor!!!")
 
         exc = exc_info.value
         assert exc.status_code == 400
@@ -98,7 +102,7 @@ def test_validation_error_details_attribute(
     ) -> None:
         """KalshiValidationError should have a details attribute (may be None or dict)."""
         with pytest.raises(KalshiValidationError) as exc_info:
-            sync_client.markets.list(limit=-1)
+            sync_client.markets.list(cursor="!!!not-a-valid-cursor!!!")
 
         exc = exc_info.value
         assert hasattr(exc, "details")
diff --git a/tests/integration/test_orders.py b/tests/integration/test_orders.py
index f9e176f2..d27dafcf 100644
--- a/tests/integration/test_orders.py
+++ b/tests/integration/test_orders.py
@@ -193,14 +193,15 @@ def test_batch_create_cancel(
             for i in range(2)
         ]
 
-        orders = sync_client.orders.batch_create(requests)
-        assert isinstance(orders, list)
-        assert len(orders) > 0
-        for o in orders:
+        response = sync_client.orders.batch_create(requests)
+        assert len(response.orders) > 0
+        successful = [e.order for e in response.orders if e.order is not None]
+        assert successful, f"All legs failed: {response.orders}"
+        for o in successful:
             assert isinstance(o, Order)
             assert_model_fields(o)
 
-        order_ids = [o.order_id for o in orders]
+        order_ids = [o.order_id for o in successful]
         try:
             sync_client.orders.batch_cancel(order_ids)
         except Exception:
@@ -306,14 +307,15 @@ async def test_batch_create_cancel(
             for i in range(2)
         ]
 
-        orders = await async_client.orders.batch_create(requests)
-        assert isinstance(orders, list)
-        assert len(orders) > 0
-        for o in orders:
+        response = await async_client.orders.batch_create(requests)
+        assert len(response.orders) > 0
+        successful = [e.order for e in response.orders if e.order is not None]
+        assert successful, f"All legs failed: {response.orders}"
+        for o in successful:
             assert isinstance(o, Order)
             assert_model_fields(o)
 
-        order_ids = [o.order_id for o in orders]
+        order_ids = [o.order_id for o in successful]
         try:
             await async_client.orders.batch_cancel(order_ids)
         except Exception: