@Override
    public NetworkPolicy networkPolicy(String uid) {
        checkArgument(!Strings.isNullOrEmpty(uid), ERR_NULL_NETWORK_POLICY_UID);
        return k8sNetworkPolicyStore.networkPolicy(uid);
    }
@Test
    public void testGetNetworkPolicyByUid() {
        createBasicNetworkPolicies();
        assertNotNull("Network policy did not match", target.networkPolicy(NETWORK_POLICY_UID));
        assertNull("Network policy did not match", target.networkPolicy(UNKNOWN_UID));
    }