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 mesh(isa, with_axis=False, ax=0):
    """plot mesh of I7/ISA7 model
    Args:
      isa: Isa7 object
    """
    from matplotlib.lines import Line2D
    if ax == 0:
        ax = plt.gca()
    ax.set_aspect('equal')
    for el in isa.elements:
        pts = [list(i) for i in zip(*[v.xy for v in el.vertices])]
        ax.add_line(Line2D(pts[0], pts[1], color='b', ls='-', lw=0.25))

    # for nc in isa.nodechains:
    #    pts = [list(i) for i in zip(*[(n.x, n.y) for n in nc.nodes])]
    #    ax.add_line(Line2D(pts[0], pts[1], color="b", ls="-", lw=0.25,
    #                       marker=".", ms="2", mec="None"))

    # for nc in isa.nodechains:
    #    if nc.nodemid is not None:
    #        plt.plot(*nc.nodemid.xy, "rx")

    ax.autoscale(enable=True)
    if not with_axis:
        ax.axis('off')