refactor outer tuple

tests/functional/builtins/codegen/test_abi_decode.py

@@ -528,14 +528,13 @@ def f(x: Bytes[32 * 5]):
 def test_abi_decode_oob_due_to_invalid_head2(w3, tx_failed, get_contract):
     code = """
 @external
-def f(x: Bytes[2 * 32 + 3 * 32  + 3 * 32 * 4]):
+def run(x: Bytes[2 * 32 + 3 * 32  + 3 * 32 * 4]):
     y: Bytes[2 * 32 + 3 * 32 + 3 * 32 * 4] = x
     decoded_y1: DynArray[Bytes[32 * 3], 3] = _abi_decode(y,  DynArray[Bytes[32 * 3], 3])
     """
     c = get_contract(code)
-    data = method_id("f(bytes)")
-    data += (0x20).to_bytes(32, "big")  # tuple head
-    data += (0x0220).to_bytes(32, "big")  # top-level bytes array length
+
+    data = b""
 
     data += (0x20).to_bytes(32, "big")  # DynArray head
     data += (0x03).to_bytes(32, "big")  # DynArray length
@@ -563,7 +562,7 @@ def f(x: Bytes[2 * 32 + 3 * 32  + 3 * 32 * 4]):
     data += (0x00).to_bytes(31, "big")
     data += (0x03).to_bytes(32, "big") * 2
     with tx_failed():
-        w3.eth.send_transaction({"to": c.address, "data": data})
+        c.run(data)
 
 
 def test_abi_decode_oob_due_to_invalid_head3(tx_failed, get_contract):