def test_shutting_down(self, t):
        enable(t)

        configuring_interface(t, "FastEthernet 0/3", do="shutdown")

        assert_interface_configuration(t, "FastEthernet0/3", [
            "interface FastEthernet0/3",
            " shutdown",
            "end"])

        configuring_interface(t, "FastEthernet 0/3", do="no shutdown")

        assert_interface_configuration(t, "FastEthernet0/3", [
            "interface FastEthernet0/3",
            "end"])