def test_modify_view_component(matrix_type, mapping_name):
    adata = ad.AnnData(
        np.zeros((10, 10)),
        **{mapping_name: dict(m=matrix_type(asarray(sparse.random(10, 10))))},
    )
    init_hash = joblib.hash(adata)

    subset = adata[:5, :][:, :5]
    assert subset.is_view
    m = getattr(subset, mapping_name)["m"]
    m[0, 0] = 100
    assert not subset.is_view
    assert getattr(subset, mapping_name)["m"][0, 0] == 100

    assert init_hash == joblib.hash(adata)
def test_parse_sections():
    simple_mariofile_sections = dict(mariofile.parse_sections(SIMPLE_MARIOFILE.splitlines(True)))
    assert len(simple_mariofile_sections) == 3
    complex_mariofile_sections = dict(mariofile.parse_sections(COMPLEX_MARIOFILE.splitlines(True)))
    assert len(complex_mariofile_sections) == 2
    assert sorted(complex_mariofile_sections.keys()) == ['DEFAULT', 'section']
    assert complex_mariofile_sections['DEFAULT'] == ['default text\n', '\n']
    with pytest.raises(mariofile.ConfigurationFileError):
        dict(mariofile.parse_sections(GARBAGE_MARIOFILE.splitlines(True)))
    with pytest.raises(mariofile.ConfigurationFileError):
        dict(mariofile.parse_sections(INVALID_SECTION_MARIOFILE.splitlines(True)))
    more_complex_mariofile_sections = dict(
            mariofile.parse_sections(MORE_COMPLEX_MARIOFILE.splitlines(True))
    )
    more_complex_mariofile_sections_keys = ['DEFAULT', 'section_one', 'section_two', 'three']
    assert sorted(more_complex_mariofile_sections.keys()) == more_complex_mariofile_sections_keys
    assert more_complex_mariofile_sections['three'] == []