diff --git a/tests/test_execution_router.py b/tests/test_execution_router.py
new file mode 100644
index 0000000..49724d9
--- /dev/null
+++ b/tests/test_execution_router.py
@@ -0,0 +1,22 @@
+import pytest
+
+from deltaforge_mvp.execution import ExecutionRouter
+from deltaforge_mvp.core import Asset, StrategyDelta, PlanDelta
+
+
+def test_execution_router_routing_changes_venue():
+    # Prepare a minimal plan delta with a single hedge delta
+    a = Asset(type="equity", symbol="AAPL")
+    sd = StrategyDelta(asset=a, delta=0.1, timestamp=0.0)
+    plan = PlanDelta(deltas=[sd], venue=None, author="test", timestamp=0.0)
+
+    router = ExecutionRouter(venues=["Venue-1", "Venue-2"])
+    result = router.route(plan)
+
+    # Expect a routed plan with a venue assigned
+    assert isinstance(result, dict)
+    assert result.get("routed") is True
+    assert result.get("venue") in ["Venue-1", "Venue-2"]
+    routed_plan = result.get("plan")
+    assert isinstance(routed_plan, PlanDelta)
+    assert routed_plan.venue == result["venue"]