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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "chrome/common/ipc_message.h"
#include "gtest/gtest.h"
#include "mozilla/NotNull.h"
#include "mozilla/Result.h"
#include "mozilla/ResultVariant.h"
#include "mozilla/ipc/RandomAccessStreamParams.h"
#include "mozilla/ipc/RandomAccessStreamUtils.h"
#include "mozilla/gtest/MozAssertions.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsCOMPtr.h"
#include "nsDirectoryServiceUtils.h"
#include "nsIFile.h"
#include "nsIFileStreams.h"
#include "nsIRandomAccessStream.h"
#include "nsNetUtil.h"
#include "nsStreamUtils.h"
namespace mozilla::ipc {
namespace {
Result<nsCOMPtr<nsIRandomAccessStream>, nsresult> CreateFileStream() {
nsCOMPtr<nsIFile> dir;
nsresult rv =
NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(dir));
if (NS_FAILED(rv)) {
return Err(rv);
}
nsCOMPtr<nsIFile> file;
rv = dir->Clone(getter_AddRefs(file));
if (NS_FAILED(rv)) {
return Err(rv);
}
rv = file->Append(u"testfile"_ns);
if (NS_FAILED(rv)) {
return Err(rv);
}
rv = file->CreateUnique(nsIFile::NORMAL_FILE_TYPE, 0666);
if (NS_FAILED(rv)) {
return Err(rv);
}
nsCOMPtr<nsIRandomAccessStream> stream;
rv = NS_NewLocalFileRandomAccessStream(getter_AddRefs(stream), file);
if (NS_FAILED(rv)) {
return Err(rv);
}
return stream;
}
// Populate an array with the given number of bytes. Data is lorem ipsum
// random text, but deterministic across multiple calls.
void CreateData(uint32_t aNumBytes, nsCString& aDataOut) {
static const char data[] =
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec egestas "
"purus eu condimentum iaculis. In accumsan leo eget odio porttitor, non "
"rhoncus nulla vestibulum. Etiam lacinia consectetur nisl nec "
"sollicitudin. Sed fringilla accumsan diam, pulvinar varius massa. Duis "
"mollis dignissim felis, eget tempus nisi tristique ut. Fusce euismod, "
"lectus non lacinia tempor, tellus diam suscipit quam, eget hendrerit "
"lacus nunc fringilla ante. Sed ultrices massa vitae risus molestie, ut "
"finibus quam laoreet nullam.";
static const uint32_t dataLength = sizeof(data) - 1;
aDataOut.SetCapacity(aNumBytes);
while (aNumBytes > 0) {
uint32_t amount = std::min(dataLength, aNumBytes);
aDataOut.Append(data, amount);
aNumBytes -= amount;
}
}
// Synchronously consume the given input stream and validate the resulting data
// against the given string of expected values.
void ConsumeAndValidateStream(nsIInputStream* aStream,
const nsACString& aExpectedData) {
uint64_t available = 0;
nsresult rv = aStream->Available(&available);
ASSERT_NS_SUCCEEDED(rv);
ASSERT_EQ(available, aExpectedData.Length());
nsAutoCString outputData;
rv = NS_ConsumeStream(aStream, UINT32_MAX, outputData);
ASSERT_NS_SUCCEEDED(rv);
ASSERT_EQ(aExpectedData.Length(), outputData.Length());
ASSERT_TRUE(aExpectedData.Equals(outputData));
}
} // namespace
TEST(RandomAccessStreamUtils, NullRandomAccessStream_MaybeSerialize)
{
nsCOMPtr<nsIRandomAccessStream> stream;
Maybe<RandomAccessStreamParams> streamParams =
SerializeRandomAccessStream(stream, nullptr);
ASSERT_TRUE(streamParams.isNothing());
auto res = DeserializeRandomAccessStream(streamParams);
ASSERT_TRUE(res.isOk());
nsCOMPtr<nsIRandomAccessStream> stream2 = res.unwrap();
ASSERT_EQ(stream2, nullptr);
}
TEST(RandomAccessStreamUtils, FileRandomAccessStream_Serialize)
{
const uint32_t dataSize = 256;
auto res = CreateFileStream();
ASSERT_TRUE(res.isOk());
auto stream = res.unwrap();
ASSERT_TRUE(stream);
nsCOMPtr<nsIFileRandomAccessStream> fileStream = do_QueryInterface(stream);
ASSERT_TRUE(fileStream);
nsCString inputData;
CreateData(dataSize, inputData);
uint32_t numWritten = 0;
nsresult rv = stream->OutputStream()->Write(inputData.BeginReading(),
inputData.Length(), &numWritten);
ASSERT_NS_SUCCEEDED(rv);
ASSERT_EQ(numWritten, dataSize);
RandomAccessStreamParams streamParams = SerializeRandomAccessStream(
WrapMovingNotNullUnchecked(std::move(stream)), nullptr);
ASSERT_EQ(streamParams.type(),
RandomAccessStreamParams::TFileRandomAccessStreamParams);
auto res2 = DeserializeRandomAccessStream(streamParams);
ASSERT_TRUE(res2.isOk());
NotNull<nsCOMPtr<nsIRandomAccessStream>> stream2 = res2.unwrap();
nsCOMPtr<nsIFileRandomAccessStream> fileStream2 =
do_QueryInterface(stream2.get());
ASSERT_TRUE(fileStream2);
int64_t offset;
rv = stream2->Tell(&offset);
ASSERT_NS_SUCCEEDED(rv);
ASSERT_EQ(offset, dataSize);
rv = stream2->Seek(nsISeekableStream::NS_SEEK_SET, 0);
ASSERT_NS_SUCCEEDED(rv);
ConsumeAndValidateStream(stream2->InputStream(), inputData);
}
TEST(RandomAccessStreamUtils, FileRandomAccessStream_MaybeSerialize)
{
const uint32_t dataSize = 512;
auto res = CreateFileStream();
ASSERT_TRUE(res.isOk());
auto stream = res.unwrap();
ASSERT_TRUE(stream);
nsCOMPtr<nsIFileRandomAccessStream> fileStream = do_QueryInterface(stream);
ASSERT_TRUE(fileStream);
nsCString inputData;
CreateData(dataSize, inputData);
uint32_t numWritten = 0;
nsresult rv = stream->OutputStream()->Write(inputData.BeginReading(),
inputData.Length(), &numWritten);
ASSERT_NS_SUCCEEDED(rv);
ASSERT_EQ(numWritten, dataSize);
Maybe<RandomAccessStreamParams> streamParams =
SerializeRandomAccessStream(stream, nullptr);
ASSERT_TRUE(streamParams);
ASSERT_EQ(streamParams->type(),
RandomAccessStreamParams::TFileRandomAccessStreamParams);
auto res2 = DeserializeRandomAccessStream(streamParams);
ASSERT_TRUE(res2.isOk());
nsCOMPtr<nsIRandomAccessStream> stream2 = res2.unwrap();
ASSERT_TRUE(stream2);
nsCOMPtr<nsIFileRandomAccessStream> fileStream2 = do_QueryInterface(stream2);
ASSERT_TRUE(fileStream2);
int64_t offset;
rv = stream2->Tell(&offset);
ASSERT_NS_SUCCEEDED(rv);
ASSERT_EQ(offset, dataSize);
rv = stream2->Seek(nsISeekableStream::NS_SEEK_SET, 0);
ASSERT_NS_SUCCEEDED(rv);
ConsumeAndValidateStream(stream2->InputStream(), inputData);
}
} // namespace mozilla::ipc
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