def test_mask_from_labels():
    # Test the create_mask helper separately
    space = BoxSpace(-1, 1, shape=5, labels=['w', 'o', 'r', 'l', 'd'])
    indices = ['w', 'o']

    mask = space.create_mask(indices)
    assert list(mask) == [1, 1, 0, 0, 0]
def test_mask_from_indices():
    # Test the create_mask helper separately
    space = BoxSpace(-1, 1, shape=5)
    indices = [1, 4]

    mask = space.create_mask(indices)
    assert list(mask) == [0, 1, 0, 0, 1]