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

    orig_obsm_val = adata.obsm["o"].copy()
    subset_obsm = adata[:50]
    assert subset_obsm.is_view
    subset_obsm.obsm["o"] = np.ones((50, 20))
    assert not subset_obsm.is_view
    assert np.all(adata.obsm["o"] == orig_obsm_val)

    assert init_hash == joblib.hash(adata)
def settings(slug=None):
    slug = slug if slug else "general"

    # get the currently active group
    active_group = SettingsGroup.query.filter_by(key=slug).first_or_404()
    # get all groups - used to build the navigation
    all_groups = SettingsGroup.query.all()

    SettingsForm = Setting.get_form(active_group)

    old_settings = Setting.get_settings(active_group)
    new_settings = {}

    form = SettingsForm()

    if form.validate_on_submit():
        for key, values in iteritems(old_settings):
            try:
                # check if the value has changed
                if values['value'] == form[key].data:
                    continue
                else:
                    new_settings[key] = form[key].data
            except KeyError:
                pass
        Setting.update(settings=new_settings, app=current_app)
        flash(_("Settings saved."), "success")
    else:
        for key, values in iteritems(old_settings):
            try:
                form[key].data = values['value']
            except (KeyError, ValueError):
                pass

    return render_template("management/settings.html", form=form,
                           all_groups=all_groups, active_group=active_group)