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=niklas.enbom@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/17479005
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6129 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/base/buffer_unittest.cc b/webrtc/base/buffer_unittest.cc
new file mode 100644
index 0000000..71b3f89
--- /dev/null
+++ b/webrtc/base/buffer_unittest.cc
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2004 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/buffer.h"
+#include "webrtc/base/gunit.h"
+
+namespace rtc {
+
+static const char kTestData[] = {
+ 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF
+};
+
+TEST(BufferTest, TestConstructDefault) {
+ Buffer buf;
+ EXPECT_EQ(0U, buf.length());
+ EXPECT_EQ(0U, buf.capacity());
+ EXPECT_EQ(Buffer(), buf);
+}
+
+TEST(BufferTest, TestConstructEmptyWithCapacity) {
+ Buffer buf(NULL, 0, 256U);
+ EXPECT_EQ(0U, buf.length());
+ EXPECT_EQ(256U, buf.capacity());
+ EXPECT_EQ(Buffer(), buf);
+}
+
+TEST(BufferTest, TestConstructData) {
+ Buffer buf(kTestData, sizeof(kTestData));
+ EXPECT_EQ(sizeof(kTestData), buf.length());
+ EXPECT_EQ(sizeof(kTestData), buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
+ EXPECT_EQ(Buffer(kTestData, sizeof(kTestData)), buf);
+}
+
+TEST(BufferTest, TestConstructDataWithCapacity) {
+ Buffer buf(kTestData, sizeof(kTestData), 256U);
+ EXPECT_EQ(sizeof(kTestData), buf.length());
+ EXPECT_EQ(256U, buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
+ EXPECT_EQ(Buffer(kTestData, sizeof(kTestData)), buf);
+}
+
+TEST(BufferTest, TestConstructCopy) {
+ Buffer buf1(kTestData, sizeof(kTestData), 256), buf2(buf1);
+ EXPECT_EQ(sizeof(kTestData), buf2.length());
+ EXPECT_EQ(sizeof(kTestData), buf2.capacity()); // capacity isn't copied
+ EXPECT_EQ(0, memcmp(buf2.data(), kTestData, sizeof(kTestData)));
+ EXPECT_EQ(buf1, buf2);
+}
+
+TEST(BufferTest, TestAssign) {
+ Buffer buf1, buf2(kTestData, sizeof(kTestData), 256);
+ EXPECT_NE(buf1, buf2);
+ buf1 = buf2;
+ EXPECT_EQ(sizeof(kTestData), buf1.length());
+ EXPECT_EQ(sizeof(kTestData), buf1.capacity()); // capacity isn't copied
+ EXPECT_EQ(0, memcmp(buf1.data(), kTestData, sizeof(kTestData)));
+ EXPECT_EQ(buf1, buf2);
+}
+
+TEST(BufferTest, TestSetData) {
+ Buffer buf;
+ buf.SetData(kTestData, sizeof(kTestData));
+ EXPECT_EQ(sizeof(kTestData), buf.length());
+ EXPECT_EQ(sizeof(kTestData), buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
+}
+
+TEST(BufferTest, TestAppendData) {
+ Buffer buf(kTestData, sizeof(kTestData));
+ buf.AppendData(kTestData, sizeof(kTestData));
+ EXPECT_EQ(2 * sizeof(kTestData), buf.length());
+ EXPECT_EQ(2 * sizeof(kTestData), buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
+ EXPECT_EQ(0, memcmp(buf.data() + sizeof(kTestData),
+ kTestData, sizeof(kTestData)));
+}
+
+TEST(BufferTest, TestSetLengthSmaller) {
+ Buffer buf;
+ buf.SetData(kTestData, sizeof(kTestData));
+ buf.SetLength(sizeof(kTestData) / 2);
+ EXPECT_EQ(sizeof(kTestData) / 2, buf.length());
+ EXPECT_EQ(sizeof(kTestData), buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData) / 2));
+}
+
+TEST(BufferTest, TestSetLengthLarger) {
+ Buffer buf;
+ buf.SetData(kTestData, sizeof(kTestData));
+ buf.SetLength(sizeof(kTestData) * 2);
+ EXPECT_EQ(sizeof(kTestData) * 2, buf.length());
+ EXPECT_EQ(sizeof(kTestData) * 2, buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
+}
+
+TEST(BufferTest, TestSetCapacitySmaller) {
+ Buffer buf;
+ buf.SetData(kTestData, sizeof(kTestData));
+ buf.SetCapacity(sizeof(kTestData) / 2); // should be ignored
+ EXPECT_EQ(sizeof(kTestData), buf.length());
+ EXPECT_EQ(sizeof(kTestData), buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
+}
+
+TEST(BufferTest, TestSetCapacityLarger) {
+ Buffer buf(kTestData, sizeof(kTestData));
+ buf.SetCapacity(sizeof(kTestData) * 2);
+ EXPECT_EQ(sizeof(kTestData), buf.length());
+ EXPECT_EQ(sizeof(kTestData) * 2, buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
+}
+
+TEST(BufferTest, TestSetCapacityThenSetLength) {
+ Buffer buf(kTestData, sizeof(kTestData));
+ buf.SetCapacity(sizeof(kTestData) * 4);
+ memcpy(buf.data() + sizeof(kTestData), kTestData, sizeof(kTestData));
+ buf.SetLength(sizeof(kTestData) * 2);
+ EXPECT_EQ(sizeof(kTestData) * 2, buf.length());
+ EXPECT_EQ(sizeof(kTestData) * 4, buf.capacity());
+ EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
+ EXPECT_EQ(0, memcmp(buf.data() + sizeof(kTestData),
+ kTestData, sizeof(kTestData)));
+}
+
+TEST(BufferTest, TestTransfer) {
+ Buffer buf1(kTestData, sizeof(kTestData), 256U), buf2;
+ buf1.TransferTo(&buf2);
+ EXPECT_EQ(0U, buf1.length());
+ EXPECT_EQ(0U, buf1.capacity());
+ EXPECT_EQ(sizeof(kTestData), buf2.length());
+ EXPECT_EQ(256U, buf2.capacity()); // capacity does transfer
+ EXPECT_EQ(0, memcmp(buf2.data(), kTestData, sizeof(kTestData)));
+}
+
+} // namespace rtc