Function test_attempt_import

xarray/tests/test_utils.py:394–402

Test optional dependency handling.

()

def test_attempt_import() -> None:
    """Test optional dependency handling."""
    np = attempt_import("numpy")
    assert np.__name__ == "numpy"

    with pytest.raises(ImportError, match="The foo package is required"):
        attempt_import(module="foo")
    with pytest.raises(ImportError, match="The foo package is required"):
        attempt_import(module="foo.bar")