'Show that #issues_on accepts multiple parameters.'

def test_issues_on_with_params(self):

    params = {'milestone': 1, 'state': 'all', 'assignee': 'owner', 'mentioned': 'someone', 'labels': 'bug,high'}
    i = self.instance.issues_on('owner', 'repo', **params)
    self.get_next(i)
    params.update(per_page=100)
    self.session.get.assert_called_once_with(url_for('repos/owner/repo/issues'), params=params, headers={})
