'Test single- and multi-asset queries on no-op restrictions'

def test_noop_restrictions(self):

    rl = NoRestrictions()
    assert_not_restricted = partial(self.assert_not_restricted, rl)
    assert_all_restrictions = partial(self.assert_all_restrictions, rl)
    for dt in [str_to_ts(dt_str) for dt_str in ('2011-01-03', '2011-01-04', '2020-01-04')]:
        assert_not_restricted(self.ASSET1, dt)
        assert_not_restricted(self.ASSET2, dt)
        assert_not_restricted(self.ASSET3, dt)
        assert_all_restrictions([False, False, False], dt)
