fix(consume): add genesis_header to single_test_cilent plugin

Author: danceratopz

src/pytest_plugins/consume/simulators/single_test_client.py

@@ -10,9 +10,8 @@
 from hive.testing import HiveTest
 
 from ethereum_test_base_types import Number, to_json
-from ethereum_test_fixtures import (
-    BlockchainFixtureCommon,
-)
+from ethereum_test_fixtures import BlockchainFixtureCommon
+from ethereum_test_fixtures.blockchain import FixtureHeader
 from pytest_plugins.consume.simulators.helpers.ruleset import (
     ruleset,  # TODO: generate dynamically
 )
@@ -56,6 +55,12 @@ def buffered_genesis(client_genesis: dict) -> io.BufferedReader:
     return io.BufferedReader(cast(io.RawIOBase, io.BytesIO(genesis_bytes)))
 
 
+@pytest.fixture(scope="function")
+def genesis_header(fixture: BlockchainFixtureCommon) -> FixtureHeader:
+    """Provide the genesis header from the shared pre-state group."""
+    return fixture.genesis  # type: ignore
+
+
 @pytest.fixture(scope="function")
 def client(
     hive_test: HiveTest,