package bridge import ( "net" "testing" "github.com/docker/libnetwork/testutils" "github.com/vishvananda/netlink" ) func setupTestInterface(t *testing.T) (*networkConfiguration, *bridgeInterface) { config := &networkConfiguration{ BridgeName: DefaultBridgeName} br := &bridgeInterface{} if err := setupDevice(config, br); err != nil { t.Fatalf("Bridge creation failed: %v", err) } return config, br } func TestSetupBridgeIPv4Fixed(t *testing.T) { defer testutils.SetupTestOSContext(t)() ip, netw, err := net.ParseCIDR("192.168.1.1/24") if err != nil { t.Fatalf("Failed to parse bridge IPv4: %v", err) } config, br := setupTestInterface(t) config.AddressIPv4 = &net.IPNet{IP: ip, Mask: netw.Mask} if err := setupBridgeIPv4(config, br); err != nil { t.Fatalf("Failed to setup bridge IPv4: %v", err) } addrsv4, err := netlink.AddrList(br.Link, netlink.FAMILY_V4) if err != nil { t.Fatalf("Failed to list device IPv4 addresses: %v", err) } var found bool for _, addr := range addrsv4 { if config.AddressIPv4.String() == addr.IPNet.String() { found = true break } } if !found { t.Fatalf("Bridge device does not have requested IPv4 address %v", config.AddressIPv4) } } func TestSetupGatewayIPv4(t *testing.T) { defer testutils.SetupTestOSContext(t)() ip, nw, _ := net.ParseCIDR("192.168.0.24/16") nw.IP = ip gw := net.ParseIP("192.168.2.254") config := &networkConfiguration{ BridgeName: DefaultBridgeName, DefaultGatewayIPv4: gw} br := &bridgeInterface{bridgeIPv4: nw} if err := setupGatewayIPv4(config, br); err != nil { t.Fatalf("Set Default Gateway failed: %v", err) } if !gw.Equal(br.gatewayIPv4) { t.Fatalf("Set Default Gateway failed. Expected %v, Found %v", gw, br.gatewayIPv4) } }