libgo/go/crypto/cipher/xor_test.go

   1 // Copyright 2013 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package cipher
   6
   7 import (
   8         "bytes"
   9         "testing"
  10 )
  11
  12 func TestXOR(t *testing.T) {
  13         for alignP := 0; alignP < 2; alignP++ {
  14                 for alignQ := 0; alignQ < 2; alignQ++ {
  15                         for alignD := 0; alignD < 2; alignD++ {
  16                                 p := make([]byte, 1024)[alignP:]
  17                                 q := make([]byte, 1024)[alignQ:]
  18                                 d1 := make([]byte, 1024+alignD)[alignD:]
  19                                 d2 := make([]byte, 1024+alignD)[alignD:]
  20                                 xorBytes(d1, p, q)
  21                                 safeXORBytes(d2, p, q)
  22                                 if bytes.Compare(d1, d2) != 0 {
  23                                         t.Error("not equal")
  24                                 }
  25                         }
  26                 }
  27         }
  28 }