package bridge import ( "bytes" "net" "testing" "github.com/docker/libnetwork/netutils" "github.com/vishvananda/netlink" ) func TestSetupNewBridge(t *testing.T) { defer netutils.SetupTestNetNS(t)() config := &NetworkConfiguration{BridgeName: DefaultBridgeName} br := &bridgeInterface{} if err := setupDevice(config, br); err != nil { t.Fatalf("Bridge creation failed: %v", err) } if br.Link == nil { t.Fatal("bridgeInterface link is nil (expected valid link)") } if _, err := netlink.LinkByName(DefaultBridgeName); err != nil { t.Fatalf("Failed to retrieve bridge device: %v", err) } if br.Link.Attrs().Flags&net.FlagUp == net.FlagUp { t.Fatalf("bridgeInterface should be created down") } } func TestSetupNewNonDefaultBridge(t *testing.T) { defer netutils.SetupTestNetNS(t)() config := &NetworkConfiguration{BridgeName: "test0"} br := &bridgeInterface{} err := setupDevice(config, br) if err == nil { t.Fatal("Expected bridge creation failure with \"non default name\", succeeded") } if _, ok := err.(NonDefaultBridgeExistError); !ok { t.Fatalf("Did not fail with expected error. Actual error: %v", err) } } func TestSetupDeviceUp(t *testing.T) { defer netutils.SetupTestNetNS(t)() config := &NetworkConfiguration{BridgeName: DefaultBridgeName} br := &bridgeInterface{} if err := setupDevice(config, br); err != nil { t.Fatalf("Bridge creation failed: %v", err) } if err := setupDeviceUp(config, br); err != nil { t.Fatalf("Failed to up bridge device: %v", err) } lnk, _ := netlink.LinkByName(DefaultBridgeName) if lnk.Attrs().Flags&net.FlagUp != net.FlagUp { t.Fatalf("bridgeInterface should be up") } } func TestGenerateRandomMAC(t *testing.T) { defer netutils.SetupTestNetNS(t)() mac1 := netutils.GenerateRandomMAC() mac2 := netutils.GenerateRandomMAC() if bytes.Compare(mac1, mac2) == 0 { t.Fatalf("Generated twice the same MAC address %v", mac1) } }