Function test_explicitly_indexed_array_preserved

xarray/tests/test_variable.py:3274–3283

Test that methods using ._data preserve ExplicitlyIndexed arrays. Regression test for methods that should use ._data instead of .data to avoid loading lazy arrays into memory.

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def test_explicitly_indexed_array_preserved() -> None:
    """Test that methods using ._data preserve ExplicitlyIndexed arrays.

    Regression test for methods that should use ._data instead of .data
    to avoid loading lazy arrays into memory.
    """
    arr = IndexableArray(np.array([1, 2, 3]))
    var = Variable(["x"], arr)
    result = var.drop_encoding()
    assert isinstance(result._data, indexing.ExplicitlyIndexed)