rocksdb/db/blob/blob_file_builder_test.cc
Levi Tamasi b0e7834100 Integrate blob file writing with the flush logic (#7345)
Summary:
The patch adds support for writing blob files during flush by integrating
`BlobFileBuilder` with the flush logic, most importantly, `BuildTable` and
`CompactionIterator`. If `enable_blob_files` is set, large values are extracted
to blob files and replaced with references. The resulting blob files are then
logged to the MANIFEST as part of the flush job's `VersionEdit` and
added to the `Version`, similarly to table files. Errors related to writing
blob files fail the flush, and any blob files written by such jobs are immediately
deleted (again, similarly to how SST files are handled). In addition, the patch
extends the logging and statistics around flushes to account for the presence
of blob files (e.g. `InternalStats::CompactionStats::bytes_written`, which is
used for calculating write amplification, now considers the blob files as well).

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7345

Test Plan: Tested using `make check` and `db_bench`.

Reviewed By: riversand963

Differential Revision: D23506369

Pulled By: ltamasi

fbshipit-source-id: 646885f22dfbe063f650d38a1fedc132f499a159
2020-09-14 21:11:43 -07:00

660 lines
23 KiB
C++

// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include "db/blob/blob_file_builder.h"
#include <cassert>
#include <cinttypes>
#include <string>
#include <utility>
#include <vector>
#include "db/blob/blob_file_addition.h"
#include "db/blob/blob_index.h"
#include "db/blob/blob_log_format.h"
#include "db/blob/blob_log_reader.h"
#include "env/composite_env_wrapper.h"
#include "env/mock_env.h"
#include "file/filename.h"
#include "file/random_access_file_reader.h"
#include "options/cf_options.h"
#include "rocksdb/env.h"
#include "rocksdb/file_checksum.h"
#include "rocksdb/options.h"
#include "test_util/sync_point.h"
#include "test_util/testharness.h"
#include "util/compression.h"
#include "utilities/fault_injection_env.h"
namespace ROCKSDB_NAMESPACE {
class TestFileNumberGenerator {
public:
uint64_t operator()() { return ++next_file_number_; }
private:
uint64_t next_file_number_ = 1;
};
class BlobFileBuilderTest : public testing::Test {
protected:
BlobFileBuilderTest() : mock_env_(Env::Default()), fs_(&mock_env_) {}
void VerifyBlobFile(uint64_t blob_file_number,
const std::string& blob_file_path,
uint32_t column_family_id,
CompressionType blob_compression_type,
const std::vector<std::pair<std::string, std::string>>&
expected_key_value_pairs,
const std::vector<std::string>& blob_indexes) {
assert(expected_key_value_pairs.size() == blob_indexes.size());
std::unique_ptr<FSRandomAccessFile> file;
constexpr IODebugContext* dbg = nullptr;
ASSERT_OK(
fs_.NewRandomAccessFile(blob_file_path, file_options_, &file, dbg));
std::unique_ptr<RandomAccessFileReader> file_reader(
new RandomAccessFileReader(std::move(file), blob_file_path,
&mock_env_));
constexpr Statistics* statistics = nullptr;
BlobLogReader blob_log_reader(std::move(file_reader), &mock_env_,
statistics);
BlobLogHeader header;
ASSERT_OK(blob_log_reader.ReadHeader(&header));
ASSERT_EQ(header.version, kVersion1);
ASSERT_EQ(header.column_family_id, column_family_id);
ASSERT_EQ(header.compression, blob_compression_type);
ASSERT_FALSE(header.has_ttl);
ASSERT_EQ(header.expiration_range, ExpirationRange());
for (size_t i = 0; i < expected_key_value_pairs.size(); ++i) {
BlobLogRecord record;
uint64_t blob_offset = 0;
ASSERT_OK(blob_log_reader.ReadRecord(
&record, BlobLogReader::kReadHeaderKeyBlob, &blob_offset));
// Check the contents of the blob file
const auto& expected_key_value = expected_key_value_pairs[i];
const auto& key = expected_key_value.first;
const auto& value = expected_key_value.second;
ASSERT_EQ(record.key_size, key.size());
ASSERT_EQ(record.value_size, value.size());
ASSERT_EQ(record.expiration, 0);
ASSERT_EQ(record.key, key);
ASSERT_EQ(record.value, value);
// Make sure the blob reference returned by the builder points to the
// right place
BlobIndex blob_index;
ASSERT_OK(blob_index.DecodeFrom(blob_indexes[i]));
ASSERT_FALSE(blob_index.IsInlined());
ASSERT_FALSE(blob_index.HasTTL());
ASSERT_EQ(blob_index.file_number(), blob_file_number);
ASSERT_EQ(blob_index.offset(), blob_offset);
ASSERT_EQ(blob_index.size(), value.size());
}
BlobLogFooter footer;
ASSERT_OK(blob_log_reader.ReadFooter(&footer));
ASSERT_EQ(footer.blob_count, expected_key_value_pairs.size());
ASSERT_EQ(footer.expiration_range, ExpirationRange());
}
MockEnv mock_env_;
LegacyFileSystemWrapper fs_;
FileOptions file_options_;
};
TEST_F(BlobFileBuilderTest, BuildAndCheckOneFile) {
// Build a single blob file
constexpr size_t number_of_blobs = 10;
constexpr size_t key_size = 1;
constexpr size_t value_size = 4;
constexpr size_t value_offset = 1234;
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
"BlobFileBuilderTest_BuildAndCheckOneFile"),
0);
options.enable_blob_files = true;
ImmutableCFOptions immutable_cf_options(options);
MutableCFOptions mutable_cf_options(options);
constexpr int job_id = 1;
constexpr uint32_t column_family_id = 123;
constexpr char column_family_name[] = "foobar";
constexpr Env::IOPriority io_priority = Env::IO_HIGH;
constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
std::vector<std::string> blob_file_paths;
std::vector<BlobFileAddition> blob_file_additions;
BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
&immutable_cf_options, &mutable_cf_options,
&file_options_, job_id, column_family_id,
column_family_name, io_priority, write_hint,
&blob_file_paths, &blob_file_additions);
std::vector<std::pair<std::string, std::string>> expected_key_value_pairs(
number_of_blobs);
std::vector<std::string> blob_indexes(number_of_blobs);
for (size_t i = 0; i < number_of_blobs; ++i) {
auto& expected_key_value = expected_key_value_pairs[i];
auto& key = expected_key_value.first;
key = std::to_string(i);
assert(key.size() == key_size);
auto& value = expected_key_value.second;
value = std::to_string(i + value_offset);
assert(value.size() == value_size);
auto& blob_index = blob_indexes[i];
ASSERT_OK(builder.Add(key, value, &blob_index));
ASSERT_FALSE(blob_index.empty());
}
ASSERT_OK(builder.Finish());
// Check the metadata generated
constexpr uint64_t blob_file_number = 2;
ASSERT_EQ(blob_file_paths.size(), 1);
const std::string& blob_file_path = blob_file_paths[0];
ASSERT_EQ(blob_file_path,
BlobFileName(immutable_cf_options.cf_paths.front().path,
blob_file_number));
ASSERT_EQ(blob_file_additions.size(), 1);
const auto& blob_file_addition = blob_file_additions[0];
ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), number_of_blobs);
ASSERT_EQ(
blob_file_addition.GetTotalBlobBytes(),
number_of_blobs * (BlobLogRecord::kHeaderSize + key_size + value_size));
// Verify the contents of the new blob file as well as the blob references
VerifyBlobFile(blob_file_number, blob_file_path, column_family_id,
kNoCompression, expected_key_value_pairs, blob_indexes);
}
TEST_F(BlobFileBuilderTest, BuildAndCheckMultipleFiles) {
// Build multiple blob files: file size limit is set to the size of a single
// value, so each blob ends up in a file of its own
constexpr size_t number_of_blobs = 10;
constexpr size_t key_size = 1;
constexpr size_t value_size = 10;
constexpr size_t value_offset = 1234567890;
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
"BlobFileBuilderTest_BuildAndCheckMultipleFiles"),
0);
options.enable_blob_files = true;
options.blob_file_size = value_size;
ImmutableCFOptions immutable_cf_options(options);
MutableCFOptions mutable_cf_options(options);
constexpr int job_id = 1;
constexpr uint32_t column_family_id = 123;
constexpr char column_family_name[] = "foobar";
constexpr Env::IOPriority io_priority = Env::IO_HIGH;
constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
std::vector<std::string> blob_file_paths;
std::vector<BlobFileAddition> blob_file_additions;
BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
&immutable_cf_options, &mutable_cf_options,
&file_options_, job_id, column_family_id,
column_family_name, io_priority, write_hint,
&blob_file_paths, &blob_file_additions);
std::vector<std::pair<std::string, std::string>> expected_key_value_pairs(
number_of_blobs);
std::vector<std::string> blob_indexes(number_of_blobs);
for (size_t i = 0; i < number_of_blobs; ++i) {
auto& expected_key_value = expected_key_value_pairs[i];
auto& key = expected_key_value.first;
key = std::to_string(i);
assert(key.size() == key_size);
auto& value = expected_key_value.second;
value = std::to_string(i + value_offset);
assert(value.size() == value_size);
auto& blob_index = blob_indexes[i];
ASSERT_OK(builder.Add(key, value, &blob_index));
ASSERT_FALSE(blob_index.empty());
}
ASSERT_OK(builder.Finish());
// Check the metadata generated
ASSERT_EQ(blob_file_paths.size(), number_of_blobs);
ASSERT_EQ(blob_file_additions.size(), number_of_blobs);
for (size_t i = 0; i < number_of_blobs; ++i) {
const uint64_t blob_file_number = i + 2;
ASSERT_EQ(blob_file_paths[i],
BlobFileName(immutable_cf_options.cf_paths.front().path,
blob_file_number));
const auto& blob_file_addition = blob_file_additions[i];
ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), 1);
ASSERT_EQ(blob_file_addition.GetTotalBlobBytes(),
BlobLogRecord::kHeaderSize + key_size + value_size);
}
// Verify the contents of the new blob files as well as the blob references
for (size_t i = 0; i < number_of_blobs; ++i) {
std::vector<std::pair<std::string, std::string>> expected_key_value_pair{
expected_key_value_pairs[i]};
std::vector<std::string> blob_index{blob_indexes[i]};
VerifyBlobFile(i + 2, blob_file_paths[i], column_family_id, kNoCompression,
expected_key_value_pair, blob_index);
}
}
TEST_F(BlobFileBuilderTest, InlinedValues) {
// All values are below the min_blob_size threshold; no blob files get written
constexpr size_t number_of_blobs = 10;
constexpr size_t key_size = 1;
constexpr size_t value_size = 10;
constexpr size_t value_offset = 1234567890;
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_InlinedValues"),
0);
options.enable_blob_files = true;
options.min_blob_size = 1024;
ImmutableCFOptions immutable_cf_options(options);
MutableCFOptions mutable_cf_options(options);
constexpr int job_id = 1;
constexpr uint32_t column_family_id = 123;
constexpr char column_family_name[] = "foobar";
constexpr Env::IOPriority io_priority = Env::IO_HIGH;
constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
std::vector<std::string> blob_file_paths;
std::vector<BlobFileAddition> blob_file_additions;
BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
&immutable_cf_options, &mutable_cf_options,
&file_options_, job_id, column_family_id,
column_family_name, io_priority, write_hint,
&blob_file_paths, &blob_file_additions);
for (size_t i = 0; i < number_of_blobs; ++i) {
const std::string key = std::to_string(i);
assert(key.size() == key_size);
const std::string value = std::to_string(i + value_offset);
assert(value.size() == value_size);
std::string blob_index;
ASSERT_OK(builder.Add(key, value, &blob_index));
ASSERT_TRUE(blob_index.empty());
}
ASSERT_OK(builder.Finish());
// Check the metadata generated
ASSERT_TRUE(blob_file_paths.empty());
ASSERT_TRUE(blob_file_additions.empty());
}
TEST_F(BlobFileBuilderTest, Compression) {
// Build a blob file with a compressed blob
if (!Snappy_Supported()) {
return;
}
constexpr size_t key_size = 1;
constexpr size_t value_size = 100;
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_Compression"), 0);
options.enable_blob_files = true;
options.blob_compression_type = kSnappyCompression;
ImmutableCFOptions immutable_cf_options(options);
MutableCFOptions mutable_cf_options(options);
constexpr int job_id = 1;
constexpr uint32_t column_family_id = 123;
constexpr char column_family_name[] = "foobar";
constexpr Env::IOPriority io_priority = Env::IO_HIGH;
constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
std::vector<std::string> blob_file_paths;
std::vector<BlobFileAddition> blob_file_additions;
BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
&immutable_cf_options, &mutable_cf_options,
&file_options_, job_id, column_family_id,
column_family_name, io_priority, write_hint,
&blob_file_paths, &blob_file_additions);
const std::string key("1");
const std::string uncompressed_value(value_size, 'x');
std::string blob_index;
ASSERT_OK(builder.Add(key, uncompressed_value, &blob_index));
ASSERT_FALSE(blob_index.empty());
ASSERT_OK(builder.Finish());
// Check the metadata generated
constexpr uint64_t blob_file_number = 2;
ASSERT_EQ(blob_file_paths.size(), 1);
const std::string& blob_file_path = blob_file_paths[0];
ASSERT_EQ(blob_file_path,
BlobFileName(immutable_cf_options.cf_paths.front().path,
blob_file_number));
ASSERT_EQ(blob_file_additions.size(), 1);
const auto& blob_file_addition = blob_file_additions[0];
ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), 1);
CompressionOptions opts;
CompressionContext context(kSnappyCompression);
constexpr uint64_t sample_for_compression = 0;
CompressionInfo info(opts, context, CompressionDict::GetEmptyDict(),
kSnappyCompression, sample_for_compression);
std::string compressed_value;
ASSERT_TRUE(Snappy_Compress(info, uncompressed_value.data(),
uncompressed_value.size(), &compressed_value));
ASSERT_EQ(blob_file_addition.GetTotalBlobBytes(),
BlobLogRecord::kHeaderSize + key_size + compressed_value.size());
// Verify the contents of the new blob file as well as the blob reference
std::vector<std::pair<std::string, std::string>> expected_key_value_pairs{
{key, compressed_value}};
std::vector<std::string> blob_indexes{blob_index};
VerifyBlobFile(blob_file_number, blob_file_path, column_family_id,
kSnappyCompression, expected_key_value_pairs, blob_indexes);
}
TEST_F(BlobFileBuilderTest, CompressionError) {
// Simulate an error during compression
if (!Snappy_Supported()) {
return;
}
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_CompressionError"),
0);
options.enable_blob_files = true;
options.blob_compression_type = kSnappyCompression;
ImmutableCFOptions immutable_cf_options(options);
MutableCFOptions mutable_cf_options(options);
constexpr int job_id = 1;
constexpr uint32_t column_family_id = 123;
constexpr char column_family_name[] = "foobar";
constexpr Env::IOPriority io_priority = Env::IO_HIGH;
constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
std::vector<std::string> blob_file_paths;
std::vector<BlobFileAddition> blob_file_additions;
BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
&immutable_cf_options, &mutable_cf_options,
&file_options_, job_id, column_family_id,
column_family_name, io_priority, write_hint,
&blob_file_paths, &blob_file_additions);
SyncPoint::GetInstance()->SetCallBack("CompressData:TamperWithReturnValue",
[](void* arg) {
bool* ret = static_cast<bool*>(arg);
*ret = false;
});
SyncPoint::GetInstance()->EnableProcessing();
constexpr char key[] = "1";
constexpr char value[] = "deadbeef";
std::string blob_index;
ASSERT_TRUE(builder.Add(key, value, &blob_index).IsCorruption());
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
constexpr uint64_t blob_file_number = 2;
ASSERT_EQ(blob_file_paths.size(), 1);
ASSERT_EQ(blob_file_paths[0],
BlobFileName(immutable_cf_options.cf_paths.front().path,
blob_file_number));
ASSERT_TRUE(blob_file_additions.empty());
}
TEST_F(BlobFileBuilderTest, Checksum) {
// Build a blob file with checksum
class DummyFileChecksumGenerator : public FileChecksumGenerator {
public:
void Update(const char* /* data */, size_t /* n */) override {}
void Finalize() override {}
std::string GetChecksum() const override { return std::string("dummy"); }
const char* Name() const override { return "DummyFileChecksum"; }
};
class DummyFileChecksumGenFactory : public FileChecksumGenFactory {
public:
std::unique_ptr<FileChecksumGenerator> CreateFileChecksumGenerator(
const FileChecksumGenContext& /* context */) override {
return std::unique_ptr<FileChecksumGenerator>(
new DummyFileChecksumGenerator);
}
const char* Name() const override { return "DummyFileChecksumGenFactory"; }
};
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_Checksum"), 0);
options.enable_blob_files = true;
options.file_checksum_gen_factory =
std::make_shared<DummyFileChecksumGenFactory>();
ImmutableCFOptions immutable_cf_options(options);
MutableCFOptions mutable_cf_options(options);
constexpr int job_id = 1;
constexpr uint32_t column_family_id = 123;
constexpr char column_family_name[] = "foobar";
constexpr Env::IOPriority io_priority = Env::IO_HIGH;
constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
std::vector<std::string> blob_file_paths;
std::vector<BlobFileAddition> blob_file_additions;
BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
&immutable_cf_options, &mutable_cf_options,
&file_options_, job_id, column_family_id,
column_family_name, io_priority, write_hint,
&blob_file_paths, &blob_file_additions);
const std::string key("1");
const std::string value("deadbeef");
std::string blob_index;
ASSERT_OK(builder.Add(key, value, &blob_index));
ASSERT_FALSE(blob_index.empty());
ASSERT_OK(builder.Finish());
// Check the metadata generated
constexpr uint64_t blob_file_number = 2;
ASSERT_EQ(blob_file_paths.size(), 1);
const std::string& blob_file_path = blob_file_paths[0];
ASSERT_EQ(blob_file_path,
BlobFileName(immutable_cf_options.cf_paths.front().path,
blob_file_number));
ASSERT_EQ(blob_file_additions.size(), 1);
const auto& blob_file_addition = blob_file_additions[0];
ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), 1);
ASSERT_EQ(blob_file_addition.GetTotalBlobBytes(),
BlobLogRecord::kHeaderSize + key.size() + value.size());
ASSERT_EQ(blob_file_addition.GetChecksumMethod(), "DummyFileChecksum");
ASSERT_EQ(blob_file_addition.GetChecksumValue(), "dummy");
// Verify the contents of the new blob file as well as the blob reference
std::vector<std::pair<std::string, std::string>> expected_key_value_pairs{
{key, value}};
std::vector<std::string> blob_indexes{blob_index};
VerifyBlobFile(blob_file_number, blob_file_path, column_family_id,
kNoCompression, expected_key_value_pairs, blob_indexes);
}
class BlobFileBuilderIOErrorTest
: public testing::Test,
public testing::WithParamInterface<std::string> {
protected:
BlobFileBuilderIOErrorTest()
: mock_env_(Env::Default()),
fault_injection_env_(&mock_env_),
fs_(&fault_injection_env_),
sync_point_(GetParam()) {}
MockEnv mock_env_;
FaultInjectionTestEnv fault_injection_env_;
LegacyFileSystemWrapper fs_;
FileOptions file_options_;
std::string sync_point_;
};
INSTANTIATE_TEST_CASE_P(
BlobFileBuilderTest, BlobFileBuilderIOErrorTest,
::testing::ValuesIn(std::vector<std::string>{
"BlobFileBuilder::OpenBlobFileIfNeeded:NewWritableFile",
"BlobFileBuilder::OpenBlobFileIfNeeded:WriteHeader",
"BlobFileBuilder::WriteBlobToFile:AddRecord",
"BlobFileBuilder::WriteBlobToFile:AppendFooter"}));
TEST_P(BlobFileBuilderIOErrorTest, IOError) {
// Simulate an I/O error during the specified step of Add()
// Note: blob_file_size will be set to value_size in order for the first blob
// to trigger close
constexpr size_t value_size = 8;
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&fault_injection_env_,
"BlobFileBuilderIOErrorTest_IOError"),
0);
options.enable_blob_files = true;
options.blob_file_size = value_size;
ImmutableCFOptions immutable_cf_options(options);
MutableCFOptions mutable_cf_options(options);
constexpr int job_id = 1;
constexpr uint32_t column_family_id = 123;
constexpr char column_family_name[] = "foobar";
constexpr Env::IOPriority io_priority = Env::IO_HIGH;
constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
std::vector<std::string> blob_file_paths;
std::vector<BlobFileAddition> blob_file_additions;
BlobFileBuilder builder(TestFileNumberGenerator(), &fault_injection_env_,
&fs_, &immutable_cf_options, &mutable_cf_options,
&file_options_, job_id, column_family_id,
column_family_name, io_priority, write_hint,
&blob_file_paths, &blob_file_additions);
SyncPoint::GetInstance()->SetCallBack(sync_point_, [this](void* /* arg */) {
fault_injection_env_.SetFilesystemActive(false,
Status::IOError(sync_point_));
});
SyncPoint::GetInstance()->EnableProcessing();
constexpr char key[] = "1";
constexpr char value[] = "deadbeef";
std::string blob_index;
ASSERT_TRUE(builder.Add(key, value, &blob_index).IsIOError());
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
if (sync_point_ == "BlobFileBuilder::OpenBlobFileIfNeeded:NewWritableFile") {
ASSERT_TRUE(blob_file_paths.empty());
} else {
constexpr uint64_t blob_file_number = 2;
ASSERT_EQ(blob_file_paths.size(), 1);
ASSERT_EQ(blob_file_paths[0],
BlobFileName(immutable_cf_options.cf_paths.front().path,
blob_file_number));
}
ASSERT_TRUE(blob_file_additions.empty());
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}