def test_zero_1d_dat(self, backend, x):
        x.data[:] = 10
        assert (x.data == 10).all()
        x.zero()
        assert (x.data == 0).all()
tests the manage rules creation and deletion funcionalities:
dataset/ETHPy150Open OP2/PyOP2/test/unit/test_direct_loop.py/TestDirectLoop.test_zero_1d_dat--crossover with--dataset/ETHPy150Open openstack/horizon/openstack_dashboard/test/integration_tests/tests/test_security_groups.py/TestSecuritygroup.test_managerules_create_delete_by_table