def test_layers_view():
    X = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
    L = np.array([[10, 11, 12], [13, 14, 15], [16, 17, 18]])
    real_adata = ad.AnnData(X)
    real_adata.layers["L"] = L
    view_adata = real_adata[1:, 1:]
    real_hash = joblib.hash(real_adata)
    view_hash = joblib.hash(view_adata)

    assert view_adata.is_view

    with pytest.raises(ValueError):
        view_adata.layers["L2"] = L + 2

    assert view_adata.is_view  # Failing to set layer item makes adata not view
    assert real_hash == joblib.hash(real_adata)
    assert view_hash == joblib.hash(view_adata)

    view_adata.layers["L2"] = L[1:, 1:] + 2

    assert not view_adata.is_view
    assert real_hash == joblib.hash(real_adata)
    assert view_hash != joblib.hash(view_adata)
def edit_user(user_id):
    user = User.query.filter_by(id=user_id).first_or_404()

    if not Permission(CanEditUser, identity=current_user):
        flash(_("You are not allowed to edit this user."), "danger")
        return redirect(url_for("management.users"))

    member_group = db.and_(*[db.not_(getattr(Group, p)) for p in
                             ['admin', 'mod', 'super_mod', 'banned', 'guest']])

    filt = db.or_(
        Group.id.in_(g.id for g in current_user.groups), member_group
    )

    if Permission(IsAtleastSuperModerator, identity=current_user):
        filt = db.or_(filt, Group.mod)

    if Permission(IsAdmin, identity=current_user):
        filt = db.or_(filt, Group.admin, Group.super_mod)

    if Permission(CanBanUser, identity=current_user):
        filt = db.or_(filt, Group.banned)

    group_query = Group.query.filter(filt)

    form = EditUserForm(user)
    form.primary_group.query = group_query
    form.secondary_groups.query = group_query
    if form.validate_on_submit():
        form.populate_obj(user)
        user.primary_group_id = form.primary_group.data.id

        # Don't override the password
        if form.password.data:
            user.password = form.password.data

        user.save(groups=form.secondary_groups.data)

        flash(_("User updated."), "success")
        return redirect(url_for("management.edit_user", user_id=user.id))

    return render_template("management/user_form.html", form=form,
                           title=_("Edit User"))