TUN-528: Move cloudflared into a separate repo

vendor/github.com/gorilla/websocket/mask_test.go

@@ -0,0 +1,73 @@
+// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved.  Use of
+// this source code is governed by a BSD-style license that can be found in the
+// LICENSE file.
+
+// Require 1.7 for sub-bencmarks
+// +build go1.7,!appengine
+
+package websocket
+
+import (
+	"fmt"
+	"testing"
+)
+
+func maskBytesByByte(key [4]byte, pos int, b []byte) int {
+	for i := range b {
+		b[i] ^= key[pos&3]
+		pos++
+	}
+	return pos & 3
+}
+
+func notzero(b []byte) int {
+	for i := range b {
+		if b[i] != 0 {
+			return i
+		}
+	}
+	return -1
+}
+
+func TestMaskBytes(t *testing.T) {
+	key := [4]byte{1, 2, 3, 4}
+	for size := 1; size <= 1024; size++ {
+		for align := 0; align < wordSize; align++ {
+			for pos := 0; pos < 4; pos++ {
+				b := make([]byte, size+align)[align:]
+				maskBytes(key, pos, b)
+				maskBytesByByte(key, pos, b)
+				if i := notzero(b); i >= 0 {
+					t.Errorf("size:%d, align:%d, pos:%d, offset:%d", size, align, pos, i)
+				}
+			}
+		}
+	}
+}
+
+func BenchmarkMaskBytes(b *testing.B) {
+	for _, size := range []int{2, 4, 8, 16, 32, 512, 1024} {
+		b.Run(fmt.Sprintf("size-%d", size), func(b *testing.B) {
+			for _, align := range []int{wordSize / 2} {
+				b.Run(fmt.Sprintf("align-%d", align), func(b *testing.B) {
+					for _, fn := range []struct {
+						name string
+						fn   func(key [4]byte, pos int, b []byte) int
+					}{
+						{"byte", maskBytesByByte},
+						{"word", maskBytes},
+					} {
+						b.Run(fn.name, func(b *testing.B) {
+							key := newMaskKey()
+							data := make([]byte, size+align)[align:]
+							for i := 0; i < b.N; i++ {
+								fn.fn(key, 0, data)
+							}
+							b.SetBytes(int64(len(data)))
+						})
+					}
+				})
+			}
+		})
+	}
+}