src/third_party/libjingle/source/talk/base/byteorder_unittest.cc

   1 /*
   2  * libjingle
   3  * Copyright 2012 Google Inc.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  *
   8  *  1. Redistributions of source code must retain the above copyright notice,
   9  *     this list of conditions and the following disclaimer.
  10  *  2. Redistributions in binary form must reproduce the above copyright notice,
  11  *     this list of conditions and the following disclaimer in the documentation
  12  *     and/or other materials provided with the distribution.
  13  *  3. The name of the author may not be used to endorse or promote products
  14  *     derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include "talk/base/byteorder.h"
  29
  30 #include "talk/base/basictypes.h"
  31 #include "talk/base/gunit.h"
  32
  33 namespace talk_base {
  34
  35 // Test memory set functions put values into memory in expected order.
  36 TEST(ByteOrderTest, TestSet) {
  37   uint8 buf[8] = { 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u };
  38   Set8(buf, 0, 0xfb);
  39   Set8(buf, 1, 0x12);
  40   EXPECT_EQ(0xfb, buf[0]);
  41   EXPECT_EQ(0x12, buf[1]);
  42   SetBE16(buf, 0x1234);
  43   EXPECT_EQ(0x12, buf[0]);
  44   EXPECT_EQ(0x34, buf[1]);
  45   SetLE16(buf, 0x1234);
  46   EXPECT_EQ(0x34, buf[0]);
  47   EXPECT_EQ(0x12, buf[1]);
  48   SetBE32(buf, 0x12345678);
  49   EXPECT_EQ(0x12, buf[0]);
  50   EXPECT_EQ(0x34, buf[1]);
  51   EXPECT_EQ(0x56, buf[2]);
  52   EXPECT_EQ(0x78, buf[3]);
  53   SetLE32(buf, 0x12345678);
  54   EXPECT_EQ(0x78, buf[0]);
  55   EXPECT_EQ(0x56, buf[1]);
  56   EXPECT_EQ(0x34, buf[2]);
  57   EXPECT_EQ(0x12, buf[3]);
  58   SetBE64(buf, UINT64_C(0x0123456789abcdef));
  59   EXPECT_EQ(0x01, buf[0]);
  60   EXPECT_EQ(0x23, buf[1]);
  61   EXPECT_EQ(0x45, buf[2]);
  62   EXPECT_EQ(0x67, buf[3]);
  63   EXPECT_EQ(0x89, buf[4]);
  64   EXPECT_EQ(0xab, buf[5]);
  65   EXPECT_EQ(0xcd, buf[6]);
  66   EXPECT_EQ(0xef, buf[7]);
  67   SetLE64(buf, UINT64_C(0x0123456789abcdef));
  68   EXPECT_EQ(0xef, buf[0]);
  69   EXPECT_EQ(0xcd, buf[1]);
  70   EXPECT_EQ(0xab, buf[2]);
  71   EXPECT_EQ(0x89, buf[3]);
  72   EXPECT_EQ(0x67, buf[4]);
  73   EXPECT_EQ(0x45, buf[5]);
  74   EXPECT_EQ(0x23, buf[6]);
  75   EXPECT_EQ(0x01, buf[7]);
  76 }
  77
  78 // Test memory get functions get values from memory in expected order.
  79 TEST(ByteOrderTest, TestGet) {
  80   uint8 buf[8];
  81   buf[0] = 0x01u;
  82   buf[1] = 0x23u;
  83   buf[2] = 0x45u;
  84   buf[3] = 0x67u;
  85   buf[4] = 0x89u;
  86   buf[5] = 0xabu;
  87   buf[6] = 0xcdu;
  88   buf[7] = 0xefu;
  89   EXPECT_EQ(0x01u, Get8(buf, 0));
  90   EXPECT_EQ(0x23u, Get8(buf, 1));
  91   EXPECT_EQ(0x0123u, GetBE16(buf));
  92   EXPECT_EQ(0x2301u, GetLE16(buf));
  93   EXPECT_EQ(0x01234567u, GetBE32(buf));
  94   EXPECT_EQ(0x67452301u, GetLE32(buf));
  95   EXPECT_EQ(UINT64_C(0x0123456789abcdef), GetBE64(buf));
  96   EXPECT_EQ(UINT64_C(0xefcdab8967452301), GetLE64(buf));
  97 }
  98
  99 }  // namespace talk_base
 100