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fix: use InMemoryCatalog to avoid config collision in tests #3006

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fix: use InMemoryCatalog to avoid config collision in tests #3006

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15 changes: 15 additions & 0 deletions tests/conftest.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@
TYPE_CHECKING,
Any,
)
from unittest import mock

import boto3
import pytest
Expand Down Expand Up @@ -112,6 +113,20 @@ def pytest_collection_modifyitems(items: list[pytest.Item]) -> None:
item.add_marker("unmarked")


@pytest.fixture(autouse=True, scope="session")
def _isolate_pyiceberg_config() -> None:
"""Make test runs ignore your local PyIceberg config.

Without this, tests will attempt to resolve a local ~/.pyiceberg.yaml while running pytest.
This replaces the global catalog config once at session start with an env-only config.
"""
import pyiceberg.catalog as _catalog_module
from pyiceberg.utils.config import Config

with mock.patch.object(Config, "_from_configuration_files", return_value=None):
_catalog_module._ENV_CONFIG = Config()


def pytest_addoption(parser: pytest.Parser) -> None:
# S3 options
parser.addoption(
Expand Down