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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/string_util.h"
#include "media/base/data_buffer.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
TEST(DataBufferTest, Constructors) {
const uint8 kTestData[] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 };
const int kTestDataSize = arraysize(kTestData);
scoped_refptr<DataBuffer> buffer(new DataBuffer(0));
EXPECT_FALSE(buffer->GetData());
scoped_refptr<DataBuffer> buffer2(new DataBuffer(kTestDataSize));
EXPECT_EQ(0, buffer2->GetDataSize());
EXPECT_EQ(kTestDataSize, buffer2->GetBufferSize());
scoped_refptr<DataBuffer> buffer3(new DataBuffer(kTestData, kTestDataSize));
EXPECT_EQ(kTestDataSize, buffer3->GetDataSize());
EXPECT_EQ(kTestDataSize, buffer3->GetBufferSize());
ASSERT_EQ(0, memcmp(buffer3->GetData(), kTestData, kTestDataSize));
// Ensure we are copying the data, not just pointing to the original data.
buffer3->GetWritableData()[0] = 0xFF;
ASSERT_NE(0, memcmp(buffer3->GetData(), kTestData, kTestDataSize));
}
TEST(DataBufferTest, ReadingWriting) {
const char kData[] = "hello";
const int kDataSize = arraysize(kData);
const char kNewData[] = "chromium";
const int kNewDataSize = arraysize(kNewData);
// Create a DataBuffer.
scoped_refptr<DataBuffer> buffer(new DataBuffer(kDataSize));
ASSERT_TRUE(buffer);
uint8* data = buffer->GetWritableData();
ASSERT_TRUE(data);
ASSERT_EQ(kDataSize, buffer->GetBufferSize());
memcpy(data, kData, kDataSize);
buffer->SetDataSize(kDataSize);
const uint8* read_only_data = buffer->GetData();
ASSERT_EQ(data, read_only_data);
ASSERT_EQ(0, memcmp(read_only_data, kData, kDataSize));
EXPECT_FALSE(buffer->IsEndOfStream());
scoped_refptr<DataBuffer> buffer2(new DataBuffer(kNewDataSize + 10));
data = buffer2->GetWritableData();
ASSERT_TRUE(data);
ASSERT_EQ(kNewDataSize + 10, buffer2->GetBufferSize());
memcpy(data, kNewData, kNewDataSize);
buffer2->SetDataSize(kNewDataSize);
read_only_data = buffer2->GetData();
EXPECT_EQ(kNewDataSize, buffer2->GetDataSize());
ASSERT_EQ(data, read_only_data);
EXPECT_EQ(0, memcmp(read_only_data, kNewData, kNewDataSize));
}
} // namespace media
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