run gofumpt, enable the gofumpt linter

internal/ackhandler/ackhandler_suite_test.go

@@ -1,11 +1,11 @@
 package ackhandler
 
 import (
+	"testing"
+
 	"github.com/golang/mock/gomock"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
-
-	"testing"
 )
 
 func TestCrypto(t *testing.T) {

internal/ackhandler/received_packet_history_test.go

@@ -9,9 +9,7 @@ import (
 )
 
 var _ = Describe("receivedPacketHistory", func() {
-	var (
-		hist *receivedPacketHistory
-	)
+	var hist *receivedPacketHistory
 
 	BeforeEach(func() {
 		hist = newReceivedPacketHistory()

internal/ackhandler/sent_packet_handler.go

@@ -88,8 +88,10 @@ type sentPacketHandler struct {
 	logger        utils.Logger
 }
 
-var _ SentPacketHandler = &sentPacketHandler{}
-var _ sentPacketTracker = &sentPacketHandler{}
+var (
+	_ SentPacketHandler = &sentPacketHandler{}
+	_ sentPacketTracker = &sentPacketHandler{}
+)
 
 func newSentPacketHandler(
 	initialPacketNumber protocol.PacketNumber,

internal/ackhandler/sent_packet_handler_test.go

@@ -232,10 +232,11 @@ var _ = Describe("SentPacketHandler", func() {
 				ping := &wire.PingFrame{}
 				handler.SentPacket(ackElicitingPacket(&Packet{
 					PacketNumber: 13,
-					Frames: []Frame{{Frame: ping, OnAcked: func(f wire.Frame) {
-						Expect(f).To(Equal(ping))
-						acked = true
-					},
+					Frames: []Frame{{
+						Frame: ping, OnAcked: func(f wire.Frame) {
+							Expect(f).To(Equal(ping))
+							acked = true
+						},
 					}},
 				}))
 				ack := &wire.AckFrame{AckRanges: []wire.AckRange{{Smallest: 13, Largest: 13}}}