Adds a modified copy of talk/base to webrtc/base. It is the first step in migrating talk/base to webrtc/base.

BUG=N/A
R=andrew@webrtc.org, wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/12199004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6107 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/base/byteorder_unittest.cc b/webrtc/base/byteorder_unittest.cc
new file mode 100644
index 0000000..f4e7df3
--- /dev/null
+++ b/webrtc/base/byteorder_unittest.cc
@@ -0,0 +1,83 @@
+/*
+ *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/base/byteorder.h"
+
+#include "webrtc/base/basictypes.h"
+#include "webrtc/base/gunit.h"
+
+namespace rtc {
+
+// Test memory set functions put values into memory in expected order.
+TEST(ByteOrderTest, TestSet) {
+  uint8 buf[8] = { 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u };
+  Set8(buf, 0, 0xfb);
+  Set8(buf, 1, 0x12);
+  EXPECT_EQ(0xfb, buf[0]);
+  EXPECT_EQ(0x12, buf[1]);
+  SetBE16(buf, 0x1234);
+  EXPECT_EQ(0x12, buf[0]);
+  EXPECT_EQ(0x34, buf[1]);
+  SetLE16(buf, 0x1234);
+  EXPECT_EQ(0x34, buf[0]);
+  EXPECT_EQ(0x12, buf[1]);
+  SetBE32(buf, 0x12345678);
+  EXPECT_EQ(0x12, buf[0]);
+  EXPECT_EQ(0x34, buf[1]);
+  EXPECT_EQ(0x56, buf[2]);
+  EXPECT_EQ(0x78, buf[3]);
+  SetLE32(buf, 0x12345678);
+  EXPECT_EQ(0x78, buf[0]);
+  EXPECT_EQ(0x56, buf[1]);
+  EXPECT_EQ(0x34, buf[2]);
+  EXPECT_EQ(0x12, buf[3]);
+  SetBE64(buf, UINT64_C(0x0123456789abcdef));
+  EXPECT_EQ(0x01, buf[0]);
+  EXPECT_EQ(0x23, buf[1]);
+  EXPECT_EQ(0x45, buf[2]);
+  EXPECT_EQ(0x67, buf[3]);
+  EXPECT_EQ(0x89, buf[4]);
+  EXPECT_EQ(0xab, buf[5]);
+  EXPECT_EQ(0xcd, buf[6]);
+  EXPECT_EQ(0xef, buf[7]);
+  SetLE64(buf, UINT64_C(0x0123456789abcdef));
+  EXPECT_EQ(0xef, buf[0]);
+  EXPECT_EQ(0xcd, buf[1]);
+  EXPECT_EQ(0xab, buf[2]);
+  EXPECT_EQ(0x89, buf[3]);
+  EXPECT_EQ(0x67, buf[4]);
+  EXPECT_EQ(0x45, buf[5]);
+  EXPECT_EQ(0x23, buf[6]);
+  EXPECT_EQ(0x01, buf[7]);
+}
+
+// Test memory get functions get values from memory in expected order.
+TEST(ByteOrderTest, TestGet) {
+  uint8 buf[8];
+  buf[0] = 0x01u;
+  buf[1] = 0x23u;
+  buf[2] = 0x45u;
+  buf[3] = 0x67u;
+  buf[4] = 0x89u;
+  buf[5] = 0xabu;
+  buf[6] = 0xcdu;
+  buf[7] = 0xefu;
+  EXPECT_EQ(0x01u, Get8(buf, 0));
+  EXPECT_EQ(0x23u, Get8(buf, 1));
+  EXPECT_EQ(0x0123u, GetBE16(buf));
+  EXPECT_EQ(0x2301u, GetLE16(buf));
+  EXPECT_EQ(0x01234567u, GetBE32(buf));
+  EXPECT_EQ(0x67452301u, GetLE32(buf));
+  EXPECT_EQ(UINT64_C(0x0123456789abcdef), GetBE64(buf));
+  EXPECT_EQ(UINT64_C(0xefcdab8967452301), GetLE64(buf));
+}
+
+}  // namespace rtc
+