def test_view_failed_delitem(attr):
    adata = gen_adata((10, 10))
    view = adata[5:7, :][:, :5]
    adata_hash = joblib.hash(adata)
    view_hash = joblib.hash(view)

    with pytest.raises(KeyError):
        getattr(view, attr).__delitem__("not a key")

    assert view.is_view
    assert adata_hash == joblib.hash(adata)
    assert view_hash == joblib.hash(view)
def __init__(self, reddit, term, config, oauth, url=None, submission=None):
        super(SubmissionPage, self).__init__(reddit, term, config, oauth)

        self.controller = SubmissionController(self, keymap=config.keymap)

        if url:
            self.content = SubmissionContent.from_url(
                reddit, url, term.loader,
                max_comment_cols=config['max_comment_cols'])
        else:
            self.content = SubmissionContent(
                submission, term.loader,
                max_comment_cols=config['max_comment_cols'])
        # Start at the submission post, which is indexed as -1
        self.nav = Navigator(self.content.get, page_index=-1)
        self.selected_subreddit = None