def METHOD_NAME(runner, tmpdir, pixelated_image, pixelated_image_file):
    """ Mask without geojson input should simply return same raster as input """
    output = str(tmpdir.join('test.tif'))
    result = runner.invoke(
        main_group,
        ['mask', pixelated_image_file, output])
    assert result.exit_code == 0
    assert os.path.exists(output)
    with rasterio.open(output) as out:
        assert np.array_equal(
            pixelated_image,
            out.read(1, masked=True).filled(0))