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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/process_util.h"
#include "media/video/capture/screen/shared_buffer.h"
#include "testing/gtest/include/gtest/gtest.h"
const uint32 kBufferSize = 4096;
const int kPattern = 0x12345678;
const int kIdZero = 0;
const int kIdOne = 1;
namespace media {
TEST(SharedBufferTest, Basic) {
scoped_refptr<SharedBuffer> source(new SharedBuffer(kBufferSize));
// Make sure that the buffer is allocated, the size is recorded correctly and
// its ID is reset.
EXPECT_TRUE(source->ptr() != NULL);
EXPECT_EQ(source->id(), kIdZero);
EXPECT_EQ(source->size(), kBufferSize);
// See if setting of the ID works.
source->set_id(kIdOne);
EXPECT_EQ(source->id(), kIdOne);
base::SharedMemoryHandle copied_handle;
EXPECT_TRUE(source->ShareToProcess(
base::GetCurrentProcessHandle(), &copied_handle));
scoped_refptr<SharedBuffer> dest(
new SharedBuffer(kIdZero, copied_handle, kBufferSize));
// Make sure that the buffer is allocated, the size is recorded correctly and
// its ID is reset.
EXPECT_TRUE(dest->ptr() != NULL);
EXPECT_EQ(dest->id(), kIdZero);
EXPECT_EQ(dest->size(), kBufferSize);
// Verify that the memory contents are the same for the two buffers.
int* source_ptr = reinterpret_cast<int*>(source->ptr());
*source_ptr = kPattern;
int* dest_ptr = reinterpret_cast<int*>(dest->ptr());
EXPECT_EQ(*source_ptr, *dest_ptr);
// Check that the destination buffer is still mapped even when the source
// buffer is destroyed.
source = NULL;
EXPECT_EQ(0x12345678, *dest_ptr);
}
} // namespace media
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