@Override
    public VirtualNetwork getVirtualNetwork(NetworkId networkId) {
        checkNotNull(networkId, NETWORK_NULL);
        return store.getNetwork(networkId);
    }
@Test
    public void testGetVirtualNetworkForRegisteredNetwork() {
        VirtualNetwork virtualNetwork = setupVirtualNetworkTopology(tenantIdValue1);

        assertNotNull("Registered virtual network is null", manager.getVirtualNetwork(virtualNetwork.id()));
    }