[DRM] Enable Constantinople tests

Author: lithp

eth/tools/fixtures/helpers.py

@@ -40,6 +40,7 @@
     BaseVM,
 )
 from eth.vm.forks import (
+    ConstantinopleVM,
     ByzantiumVM,
     TangerineWhistleVM,
     FrontierVM,
@@ -123,6 +124,10 @@ def chain_vm_configuration(fixture: Dict[str, Any]) -> Iterable[Tuple[int, Type[
         return (
             (0, ByzantiumVM),
         )
+    elif network == 'Constantinople':
+        return (
+            (0, ConstantinopleVM),
+        )
     elif network == 'FrontierToHomesteadAt5':
         HomesteadVM = BaseHomesteadVM.configure(support_dao_fork=False)
         return (

tests/json-fixtures/test_blockchain.py

@@ -164,8 +164,6 @@ def fixture(fixture_data):
         fixture_key,
         normalize_blockchain_fixtures,
     )
-    if fixture['network'] == 'Constantinople':
-        pytest.skip('Constantinople VM rules not yet supported')
     return fixture