def test_set_obsm(adata):
    init_hash = joblib.hash(adata)

    dim0_size = np.random.randint(2, adata.shape[0] - 1)
    dim1_size = np.random.randint(1, 99)
    orig_obsm_val = adata.obsm["o"].copy()
    subset_idx = np.random.choice(adata.obs_names, dim0_size, replace=False)

    subset = adata[subset_idx, :]
    assert subset.is_view
    subset.obsm = dict(o=np.ones((dim0_size, dim1_size)))
    assert not subset.is_view
    assert np.all(orig_obsm_val == adata.obsm["o"])  # Checking for mutation
    assert np.all(subset.obsm["o"] == np.ones((dim0_size, dim1_size)))

    subset = adata[subset_idx, :]
    subset_hash = joblib.hash(subset)
    with pytest.raises(ValueError):
        subset.obsm = dict(o=np.ones((dim0_size + 1, dim1_size)))
    with pytest.raises(ValueError):
        subset.varm = dict(o=np.ones((dim0_size - 1, dim1_size)))
    assert subset_hash == joblib.hash(subset)

    # Only modification have been made to a view
    assert init_hash == joblib.hash(adata)
def test_reverse_rfc822_datetime():
    dates = [
        ("Sat, 01 Jan 2011 00:00:00 -0000", datetime(2011, 1, 1, tzinfo=pytz.utc)),
        ("Sat, 01 Jan 2011 23:59:59 -0000", datetime(2011, 1, 1, 23, 59, 59, tzinfo=pytz.utc)),
        ("Sat, 01 Jan 2011 21:59:59 -0200", datetime(2011, 1, 1, 23, 59, 59, tzinfo=pytz.utc)),
    ]

    for date_string, expected in dates:
        yield assert_equal, inputs.datetime_from_rfc822(date_string), expected