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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 "media/base/data_buffer.h"
#include <stdint.h>
#include <memory>
#include <utility>
#include "base/macros.h"
#include "base/strings/string_util.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
TEST(DataBufferTest, Constructor_ZeroSize) {
// Zero-sized buffers are valid. In practice they aren't used very much but it
// eliminates clients from worrying about null data pointers.
scoped_refptr<DataBuffer> buffer = new DataBuffer(0);
EXPECT_TRUE(buffer->data());
EXPECT_TRUE(buffer->writable_data());
EXPECT_EQ(0, buffer->data_size());
EXPECT_FALSE(buffer->end_of_stream());
}
TEST(DataBufferTest, Constructor_NonZeroSize) {
// Buffer size should be set.
scoped_refptr<DataBuffer> buffer = new DataBuffer(10);
EXPECT_TRUE(buffer->data());
EXPECT_TRUE(buffer->writable_data());
EXPECT_EQ(0, buffer->data_size());
EXPECT_FALSE(buffer->end_of_stream());
}
TEST(DataBufferTest, Constructor_ScopedArray) {
// Data should be passed and both data and buffer size should be set.
const int kSize = 8;
std::unique_ptr<uint8_t[]> data(new uint8_t[kSize]);
const uint8_t* kData = data.get();
scoped_refptr<DataBuffer> buffer = new DataBuffer(std::move(data), kSize);
EXPECT_TRUE(buffer->data());
EXPECT_TRUE(buffer->writable_data());
EXPECT_EQ(kData, buffer->data());
EXPECT_EQ(kSize, buffer->data_size());
EXPECT_FALSE(buffer->end_of_stream());
}
TEST(DataBufferTest, CopyFrom) {
const uint8_t kTestData[] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
const int kTestDataSize = arraysize(kTestData);
scoped_refptr<DataBuffer> buffer =
DataBuffer::CopyFrom(kTestData, kTestDataSize);
EXPECT_EQ(kTestDataSize, buffer->data_size());
EXPECT_FALSE(buffer->end_of_stream());
// Ensure we are copying the data, not just pointing to the original data.
EXPECT_EQ(0, memcmp(buffer->data(), kTestData, kTestDataSize));
buffer->writable_data()[0] = 0xFF;
EXPECT_NE(0, memcmp(buffer->data(), kTestData, kTestDataSize));
}
TEST(DataBufferTest, CreateEOSBuffer) {
scoped_refptr<DataBuffer> buffer = DataBuffer::CreateEOSBuffer();
EXPECT_TRUE(buffer->end_of_stream());
}
TEST(DataBufferTest, Timestamp) {
const base::TimeDelta kZero;
const base::TimeDelta kTimestampA = base::TimeDelta::FromMicroseconds(1337);
const base::TimeDelta kTimestampB = base::TimeDelta::FromMicroseconds(1234);
scoped_refptr<DataBuffer> buffer = new DataBuffer(0);
EXPECT_TRUE(buffer->timestamp() == kZero);
buffer->set_timestamp(kTimestampA);
EXPECT_TRUE(buffer->timestamp() == kTimestampA);
buffer->set_timestamp(kTimestampB);
EXPECT_TRUE(buffer->timestamp() == kTimestampB);
}
TEST(DataBufferTest, Duration) {
const base::TimeDelta kZero;
const base::TimeDelta kDurationA = base::TimeDelta::FromMicroseconds(1337);
const base::TimeDelta kDurationB = base::TimeDelta::FromMicroseconds(1234);
scoped_refptr<DataBuffer> buffer = new DataBuffer(0);
EXPECT_TRUE(buffer->duration() == kZero);
buffer->set_duration(kDurationA);
EXPECT_TRUE(buffer->duration() == kDurationA);
buffer->set_duration(kDurationB);
EXPECT_TRUE(buffer->duration() == kDurationB);
}
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.get());
uint8_t* data = buffer->writable_data();
ASSERT_TRUE(data);
memcpy(data, kData, kDataSize);
buffer->set_data_size(kDataSize);
const uint8_t* read_only_data = buffer->data();
ASSERT_EQ(data, read_only_data);
ASSERT_EQ(0, memcmp(read_only_data, kData, kDataSize));
EXPECT_FALSE(buffer->end_of_stream());
scoped_refptr<DataBuffer> buffer2(new DataBuffer(kNewDataSize + 10));
data = buffer2->writable_data();
ASSERT_TRUE(data);
memcpy(data, kNewData, kNewDataSize);
buffer2->set_data_size(kNewDataSize);
read_only_data = buffer2->data();
EXPECT_EQ(kNewDataSize, buffer2->data_size());
ASSERT_EQ(data, read_only_data);
EXPECT_EQ(0, memcmp(read_only_data, kNewData, kNewDataSize));
}
} // namespace media
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