AsyncAPI 3.0.0 Nats arguments tests

tests/asyncapi/nats/v3_0_0/test_arguments.py

@@ -0,0 +1,20 @@
+from faststream.asyncapi.generate import get_app_schema
+from faststream.nats import NatsBroker
+from tests.asyncapi.base.v3_0_0.arguments import ArgumentsTestcase
+
+
+class TestArguments(ArgumentsTestcase):
+    broker_class = NatsBroker
+
+    def test_subscriber_bindings(self):
+        broker = self.broker_class()
+
+        @broker.subscriber("test")
+        async def handle(msg): ...
+
+        schema = get_app_schema(self.build_app(broker)).to_jsonable()
+        key = tuple(schema["channels"].keys())[0]  # noqa: RUF015
+
+        assert schema["channels"][key]["bindings"] == {
+            "nats": {"bindingVersion": "custom", "subject": "test"}
+        }