fix(tests): EIP-7685: Return Engine API error code for invalid params

Author: marioevz

tests/prague/eip7685_general_purpose_el_requests/conftest.py

@@ -5,7 +5,15 @@
 import pytest
 
 from ethereum_test_forks import Fork
-from ethereum_test_tools import Alloc, Block, BlockException, Bytes, Header, Requests
+from ethereum_test_tools import (
+    Alloc,
+    Block,
+    BlockException,
+    Bytes,
+    EngineAPIError,
+    Header,
+    Requests,
+)
 
 from ..eip6110_deposits.helpers import DepositInteractionBase, DepositRequest
 from ..eip7002_el_triggerable_withdrawals.helpers import (
@@ -50,6 +58,26 @@ def exception() -> BlockException | None:
     return None
 
 
+@pytest.fixture
+def engine_api_error_code(
+    block_body_override_requests: List[Bytes | SupportsBytes] | None,
+) -> EngineAPIError | None:
+    """Engine API error code if any."""
+    if block_body_override_requests is None:
+        return None
+    block_body_override_requests_bytes = [bytes(r) for r in block_body_override_requests]
+    if any(len(r) <= 1 for r in block_body_override_requests_bytes):
+        return EngineAPIError.InvalidParams
+
+    last_type: int = -1
+    for r in block_body_override_requests_bytes:
+        if r[0] <= last_type:
+            return EngineAPIError.InvalidParams
+        last_type = r[0]
+
+    return None
+
+
 @pytest.fixture
 def blocks(
     fork: Fork,
@@ -59,10 +87,11 @@ def blocks(
         | WithdrawalRequestInteractionBase
         | ConsolidationRequestInteractionBase
     ],
-    block_body_override_requests: (List[Bytes | SupportsBytes] | None),
+    block_body_override_requests: List[Bytes | SupportsBytes] | None,
     block_body_extra_requests: List[SupportsBytes],
     correct_requests_hash_in_header: bool,
     exception: BlockException | None,
+    engine_api_error_code: EngineAPIError | None,
 ) -> List[Block]:
     """List of blocks that comprise the test."""
     valid_requests_list: List[DepositRequest | WithdrawalRequest | ConsolidationRequest] = []
@@ -95,5 +124,6 @@ def blocks(
             requests=block_body_override_requests,
             exception=exception,
             rlp_modifier=rlp_modifier,
+            engine_api_error_code=engine_api_error_code,
         )
     ]

tests/prague/eip7685_general_purpose_el_requests/test_deposits_withdrawals_consolidations.py

@@ -331,6 +331,8 @@ def invalid_requests_block_combinations(fork: Fork) -> List[Any]:
 
     In the event of a new request type, the `all_request_types` dictionary should be updated
     with the new request type and its corresponding request-generating transaction.
+
+    Returned parameters are: requests, block_body_override_requests, exception
     """
     assert fork.max_request_type() == 2, "Test update is needed for new request types"