added test for passing a gas value in send()

Author: emc415

tests/parser/functions/test_send.py

@@ -56,3 +56,46 @@ def __default__():
     assert receiver.last_sender() == sender.address
     assert w3.eth.get_balance(sender.address) == 0
     assert w3.eth.get_balance(receiver.address) == 1
+
+def test_gas_kwarg(get_contract, w3):
+    """
+    Tests to verify that send to default function will send limited gas (2300),
+    but raw_call can send more.
+    """
+
+    sender_code = """
+@external
+def test_send(receiver: address):
+    send(receiver, 1, gas=50000)
+
+@external
+def test_call(receiver: address):
+    raw_call(receiver, b"", gas=50000, max_outsize=0, value=1)
+    """
+
+    # default function writes variable, this requires more gas than send can pass
+    receiver_code = """
+last_sender: public(address)
+
+@external
+@payable
+def __default__():
+    self.last_sender = msg.sender
+    """
+
+    sender = get_contract(sender_code, value=1)
+    receiver = get_contract(receiver_code)
+
+    sender.test_send(receiver.address, transact={"gas": 100000})
+
+    # no value transfer hapenned, variable was not changed
+    assert receiver.last_sender() == sender.address
+    assert w3.eth.get_balance(sender.address) == 0
+    assert w3.eth.get_balance(receiver.address) == 1
+
+    sender.test_call(receiver.address, transact={"gas": 100000})
+
+    # value transfer hapenned, variable was changed
+    assert receiver.last_sender() == sender.address
+    assert w3.eth.get_balance(sender.address) == 0
+    assert w3.eth.get_balance(receiver.address) == 1