blob: 632ca81240d3cf4b6fa5895fedf035b53b16e58c [file] [log] [blame]
/*
* 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.size());
EXPECT_EQ(0U, buf.capacity());
EXPECT_EQ(Buffer(), buf);
}
TEST(BufferTest, TestConstructEmptyWithCapacity) {
Buffer buf(NULL, 0, 256U);
EXPECT_EQ(0U, buf.size());
EXPECT_EQ(256U, buf.capacity());
EXPECT_EQ(Buffer(), buf);
}
TEST(BufferTest, TestConstructData) {
Buffer buf(kTestData, sizeof(kTestData));
EXPECT_EQ(sizeof(kTestData), buf.size());
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.size());
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.size());
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.size());
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.size());
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.size());
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, TestSetSizeSmaller) {
Buffer buf;
buf.SetData(kTestData, sizeof(kTestData));
buf.SetSize(sizeof(kTestData) / 2);
EXPECT_EQ(sizeof(kTestData) / 2, buf.size());
EXPECT_EQ(sizeof(kTestData), buf.capacity());
EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData) / 2));
}
TEST(BufferTest, TestSetSizeLarger) {
Buffer buf;
buf.SetData(kTestData, sizeof(kTestData));
buf.SetSize(sizeof(kTestData) * 2);
EXPECT_EQ(sizeof(kTestData) * 2, buf.size());
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.size());
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.size());
EXPECT_EQ(sizeof(kTestData) * 2, buf.capacity());
EXPECT_EQ(0, memcmp(buf.data(), kTestData, sizeof(kTestData)));
}
TEST(BufferTest, TestSetCapacityThenSetSize) {
Buffer buf(kTestData, sizeof(kTestData));
buf.SetCapacity(sizeof(kTestData) * 4);
memcpy(buf.data() + sizeof(kTestData), kTestData, sizeof(kTestData));
buf.SetSize(sizeof(kTestData) * 2);
EXPECT_EQ(sizeof(kTestData) * 2, buf.size());
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.size());
EXPECT_EQ(0U, buf1.capacity());
EXPECT_EQ(sizeof(kTestData), buf2.size());
EXPECT_EQ(256U, buf2.capacity()); // capacity does transfer
EXPECT_EQ(0, memcmp(buf2.data(), kTestData, sizeof(kTestData)));
}
} // namespace rtc