fix: some providers are importing base fees as hex int (#2218)

Co-authored-by: slush <[email protected]>

src/ape_ethereum/provider.py

@@ -260,7 +260,7 @@ def base_fee(self) -> int:
             # Non-EIP-1559 chains or we time-travelled pre-London fork.
             return self._get_last_base_fee()
 
-        return pending_base_fee
+        return to_int(pending_base_fee)
 
     @property
     def call_trace_approach(self) -> Optional[TraceApproach]:
@@ -284,7 +284,7 @@ def _get_fee_history(self, block_number: int) -> FeeHistory:
     def _get_last_base_fee(self) -> int:
         base_fee = self._get_latest_block_rpc().get("baseFeePerGas", None)
         if base_fee is not None:
-            return base_fee
+            return to_int(base_fee)
 
         raise APINotImplementedError("No base fee found in block.")
 

tests/functional/geth/test_provider.py

@@ -588,6 +588,22 @@ def test_base_fee_no_history(geth_provider, mocker, ret):
     assert actual == expected
 
 
+@geth_process_test
+def test_base_fee_hex_decode(geth_provider, mocker):
+    orig = geth_provider._web3.eth.fee_history
+    mock_fee_history = mocker.MagicMock()
+    mock_fee_history.return_value = {"baseFeePerGas": ["0x6", "0x7"]}
+    expected = 7
+    geth_provider._web3.eth.fee_history = mock_fee_history
+
+    try:
+        actual = geth_provider.base_fee
+    finally:
+        geth_provider._web3.eth.fee_history = orig
+
+    assert actual == expected
+
+
 @geth_process_test
 def test_estimate_gas_cost(geth_contract, geth_provider, geth_account):
     txn = geth_contract.setNumber.as_transaction(900, sender=geth_account)