"""Shared fixtures for the clawhdf5 Python binding tests."""

import os

import pytest


@pytest.fixture(scope="session")
def h5py():
    """h5py, or a skip — unless CLAWHDF5_REQUIRE_INTEROP=1, which makes a
    missing h5py a failure (as for the Rust interop suites)."""
    try:
        import h5py as mod
    except ImportError:
        if os.environ.get("CLAWHDF5_REQUIRE_INTEROP") == "1":
            pytest.fail("h5py is required (CLAWHDF5_REQUIRE_INTEROP=1) but not importable")
        pytest.skip("h5py not installed")
    return mod