move connection ID generation from the utils to the protocol package

internal/utils/connection_id.go

@@ -1,18 +0,0 @@
-package utils
-
-import (
-	"crypto/rand"
-	"encoding/binary"
-
-	"github.com/lucas-clemente/quic-go/internal/protocol"
-)
-
-// GenerateConnectionID generates a connection ID using cryptographic random
-func GenerateConnectionID() (protocol.ConnectionID, error) {
-	b := make([]byte, 8)
-	_, err := rand.Read(b)
-	if err != nil {
-		return 0, err
-	}
-	return protocol.ConnectionID(binary.LittleEndian.Uint64(b)), nil
-}

internal/utils/connection_id_test.go

@@ -1,17 +0,0 @@
-package utils
-
-import (
-	. "github.com/onsi/ginkgo"
-	. "github.com/onsi/gomega"
-)
-
-var _ = Describe("Connection ID generation", func() {
-	It("generates random connection IDs", func() {
-		c1, err := GenerateConnectionID()
-		Expect(err).ToNot(HaveOccurred())
-		Expect(c1).ToNot(BeZero())
-		c2, err := GenerateConnectionID()
-		Expect(err).ToNot(HaveOccurred())
-		Expect(c1).ToNot(Equal(c2))
-	})
-})