Test EIP-2929

Author: SamWilsn

tests/berlin/eip2929_state_gas/__init__.py

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+"""
+abstract: Tests [EIP-2929: Gas cost increases for state access opcodes][0]
+    Test cases for [EIP-2929: Gas cost increases for state access opcodes][0].
+
+[0]: https://eips.ethereum.org/EIPS/eip-2929
+"""

tests/berlin/eip2929_state_gas/test_call.py

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+"""
+Test the CALL family of instructions after EIP-2929
+"""
+
+import pytest
+
+from ethereum_test_tools import Account, Alloc, Environment
+from ethereum_test_tools import Opcodes as Op
+from ethereum_test_tools import StateTestFiller, Transaction
+
+REFERENCE_SPEC_GIT_PATH = "EIPS/eip-2929.md"
+REFERENCE_SPEC_VERSION = "949de3748527504fba8ef5a47cc76413fff85159"
+
+
+@pytest.mark.valid_from("Berlin")
+def test_call_insufficient_balance(state_test: StateTestFiller, pre: Alloc):
+    """
+    Test a regular CALL to see if it warms the destination with insufficient
+    balance.
+    """
+    env = Environment()
+
+    destination = pre.fund_eoa(1)
+    contract_address = pre.deploy_contract(
+        Op.CALL(
+            gas=Op.GAS,
+            address=destination,
+            value=1,
+            args_offset=0,
+            args_size=0,
+            ret_offset=0,
+            ret_size=0,
+        )
+        + Op.SSTORE(key=1, value=Op.BALANCE(address=destination))
+        + Op.SSTORE(key=2, value=Op.GAS),
+        balance=0,
+    )
+    sender = pre.fund_eoa(0x3000000000)
+
+    tx = Transaction(
+        chain_id=0x01,
+        to=contract_address,
+        value=0,
+        gas_limit=323328,
+        access_list=[],
+        protected=True,
+        sender=sender,
+    )
+
+    post = {
+        destination: Account(
+            balance=1,
+        ),
+    }
+    state_test(env=env, pre=pre, post=post, tx=tx)