fix(testing): restore default gas after fill pytester test

packages/testing/src/execution_testing/cli/pytest_commands/plugins/filler/tests/conftest.py

@@ -0,0 +1,15 @@
+"""Pytest configuration for filler tests."""
+
+from typing import Generator
+
+import pytest
+
+
+@pytest.fixture
+def restore_environment_defaults() -> Generator[None, None, None]:
+    """Restore EnvironmentDefaults.gas_limit after test runs to prevent side effects."""
+    from execution_testing.test_types.block_types import EnvironmentDefaults
+
+    original_gas_limit = EnvironmentDefaults.gas_limit
+    yield
+    EnvironmentDefaults.gas_limit = original_gas_limit

packages/testing/src/execution_testing/cli/pytest_commands/plugins/filler/tests/test_filler.py

@@ -603,6 +603,7 @@ def test_max_gas_limit(state_test, pre, block_gas_limit) -> None:
         ),
     ],
 )
+@pytest.mark.usefixtures("restore_environment_defaults")
 def test_fill_variables(
     testdir: pytest.Testdir,
     args: list[str],