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content / browser / indexed_db / mock_browsertest_indexed_db_class_factory.cc [blame]
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/indexed_db/mock_browsertest_indexed_db_class_factory.h"
#include <stddef.h>
#include <string>
#include <string_view>
#include <utility>
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/task/sequenced_task_runner.h"
#include "components/services/storage/indexed_db/scopes/leveldb_scope.h"
#include "components/services/storage/indexed_db/scopes/leveldb_scopes.h"
#include "components/services/storage/indexed_db/transactional_leveldb/transactional_leveldb_database.h"
#include "components/services/storage/indexed_db/transactional_leveldb/transactional_leveldb_iterator.h"
#include "components/services/storage/indexed_db/transactional_leveldb/transactional_leveldb_transaction.h"
#include "third_party/leveldatabase/env_chromium.h"
#include "third_party/leveldatabase/src/include/leveldb/status.h"
using storage::mojom::FailClass;
using storage::mojom::FailMethod;
namespace {
class FunctionTracer {
public:
FunctionTracer(const std::string& class_name,
const std::string& method_name,
int instance_num)
: class_name_(class_name),
method_name_(method_name),
instance_count_(instance_num),
current_call_num_(0) {}
void log_call() {
current_call_num_++;
VLOG(0) << class_name_ << '[' << instance_count_ << "]::" << method_name_
<< "()[" << current_call_num_ << ']';
}
private:
std::string class_name_;
std::string method_name_;
int instance_count_;
int current_call_num_;
};
} // namespace
namespace content::indexed_db {
class LevelDBTestDatabase : public TransactionalLevelDBDatabase {
public:
LevelDBTestDatabase(scoped_refptr<LevelDBState> level_db_state,
std::unique_ptr<LevelDBScopes> leveldb_scopes,
TransactionalLevelDBFactory* factory,
scoped_refptr<base::SequencedTaskRunner> task_runner,
size_t max_open_iterators,
FailMethod fail_method,
int fail_on_call_num)
: TransactionalLevelDBDatabase(std::move(level_db_state),
std::move(leveldb_scopes),
factory,
std::move(task_runner),
max_open_iterators),
fail_method_(fail_method),
fail_on_call_num_(fail_on_call_num),
current_call_num_(0) {
DCHECK(fail_method != FailMethod::NOTHING);
DCHECK_GT(fail_on_call_num, 0);
}
~LevelDBTestDatabase() override = default;
leveldb::Status Get(std::string_view key,
std::string* value,
bool* found) override {
if (fail_method_ != FailMethod::GET ||
++current_call_num_ != fail_on_call_num_)
return TransactionalLevelDBDatabase::Get(key, value, found);
*found = false;
return leveldb::Status::Corruption("Corrupted for the test");
}
leveldb::Status Write(LevelDBWriteBatch* write_batch) override {
if ((fail_method_ != FailMethod::WRITE) ||
++current_call_num_ != fail_on_call_num_)
return TransactionalLevelDBDatabase::Write(write_batch);
return leveldb::Status::Corruption("Corrupted for the test");
}
private:
FailMethod fail_method_;
int fail_on_call_num_;
int current_call_num_;
};
class LevelDBTestDirectTransaction : public LevelDBDirectTransaction {
public:
LevelDBTestDirectTransaction(TransactionalLevelDBDatabase* db,
FailMethod fail_method,
int fail_on_call_num)
: LevelDBDirectTransaction(db),
fail_method_(fail_method),
fail_on_call_num_(fail_on_call_num),
current_call_num_(0) {
DCHECK(fail_method != FailMethod::NOTHING);
DCHECK_GT(fail_on_call_num, 0);
}
~LevelDBTestDirectTransaction() override = default;
leveldb::Status Get(std::string_view key,
std::string* value,
bool* found) override {
if (fail_method_ != FailMethod::GET ||
++current_call_num_ != fail_on_call_num_)
return LevelDBTestDirectTransaction::Get(key, value, found);
*found = false;
return leveldb::Status::Corruption("Corrupted for the test");
}
private:
FailMethod fail_method_;
int fail_on_call_num_;
int current_call_num_;
};
class LevelDBTestTransaction : public TransactionalLevelDBTransaction {
public:
LevelDBTestTransaction(TransactionalLevelDBDatabase* db,
std::unique_ptr<LevelDBScope> scope,
FailMethod fail_method,
int fail_on_call_num)
: TransactionalLevelDBTransaction(db, std::move(scope)),
fail_method_(fail_method),
fail_on_call_num_(fail_on_call_num),
current_call_num_(0) {
DCHECK(fail_method != FailMethod::NOTHING);
DCHECK_GT(fail_on_call_num, 0);
}
leveldb::Status Get(std::string_view key,
std::string* value,
bool* found) override {
if (fail_method_ != FailMethod::GET ||
++current_call_num_ != fail_on_call_num_)
return TransactionalLevelDBTransaction::Get(key, value, found);
*found = false;
return leveldb::Status::Corruption("Corrupted for the test");
}
leveldb::Status Commit(bool sync_on_commit) override {
if (++current_call_num_ != fail_on_call_num_)
return TransactionalLevelDBTransaction::Commit(sync_on_commit);
if (fail_method_ == FailMethod::COMMIT)
return leveldb::Status::Corruption("Corrupted for the test");
if (fail_method_ == FailMethod::COMMIT_DISK_FULL) {
return leveldb_env::MakeIOError("dummy filename", "Disk Full",
leveldb_env::kWritableFileAppend,
base::File::FILE_ERROR_NO_SPACE);
}
if (fail_method_ == FailMethod::COMMIT_SYNC && sync_on_commit) {
return leveldb_env::MakeIOError("dummy filename", "Sync on commit",
leveldb_env::kWritableFileAppend,
base::File::FILE_ERROR_FAILED);
}
return TransactionalLevelDBTransaction::Commit(sync_on_commit);
}
private:
~LevelDBTestTransaction() override = default;
FailMethod fail_method_;
int fail_on_call_num_;
int current_call_num_;
};
class LevelDBTraceTransaction : public TransactionalLevelDBTransaction {
public:
LevelDBTraceTransaction(TransactionalLevelDBDatabase* db,
std::unique_ptr<LevelDBScope> scope,
int tx_num)
: TransactionalLevelDBTransaction(db, std::move(scope)),
class_name_("LevelDBTransaction"),
commit_tracer_(class_name_, "Commit", tx_num),
get_tracer_(class_name_, "Get", tx_num) {}
leveldb::Status Get(std::string_view key,
std::string* value,
bool* found) override {
get_tracer_.log_call();
return TransactionalLevelDBTransaction::Get(key, value, found);
}
leveldb::Status Commit(bool sync_on_commit) override {
commit_tracer_.log_call();
return TransactionalLevelDBTransaction::Commit(sync_on_commit);
}
private:
const std::string class_name_;
~LevelDBTraceTransaction() override = default;
FunctionTracer commit_tracer_;
FunctionTracer get_tracer_;
};
class LevelDBTraceIterator : public TransactionalLevelDBIterator {
public:
LevelDBTraceIterator(std::unique_ptr<leveldb::Iterator> iterator,
base::WeakPtr<TransactionalLevelDBDatabase> db,
base::WeakPtr<TransactionalLevelDBTransaction> txn,
std::unique_ptr<LevelDBSnapshot> snapshot,
int inst_num)
: TransactionalLevelDBIterator(std::move(iterator),
std::move(db),
std::move(txn),
std::move(snapshot)),
class_name_("LevelDBIterator"),
is_valid_tracer_(class_name_, "IsValid", inst_num),
seek_to_last_tracer_(class_name_, "SeekToLast", inst_num),
seek_tracer_(class_name_, "Seek", inst_num),
next_tracer_(class_name_, "Next", inst_num),
prev_tracer_(class_name_, "Prev", inst_num),
key_tracer_(class_name_, "Key", inst_num),
value_tracer_(class_name_, "Value", inst_num) {}
~LevelDBTraceIterator() override = default;
private:
const std::string class_name_;
bool IsValid() const override {
is_valid_tracer_.log_call();
return TransactionalLevelDBIterator::IsValid();
}
leveldb::Status SeekToLast() override {
seek_to_last_tracer_.log_call();
return TransactionalLevelDBIterator::SeekToLast();
}
leveldb::Status Seek(std::string_view target) override {
seek_tracer_.log_call();
return TransactionalLevelDBIterator::Seek(target);
}
leveldb::Status Next() override {
next_tracer_.log_call();
return TransactionalLevelDBIterator::Next();
}
leveldb::Status Prev() override {
prev_tracer_.log_call();
return TransactionalLevelDBIterator::Prev();
}
std::string_view Key() const override {
key_tracer_.log_call();
return TransactionalLevelDBIterator::Key();
}
std::string_view Value() const override {
value_tracer_.log_call();
return TransactionalLevelDBIterator::Value();
}
mutable FunctionTracer is_valid_tracer_;
mutable FunctionTracer seek_to_last_tracer_;
mutable FunctionTracer seek_tracer_;
mutable FunctionTracer next_tracer_;
mutable FunctionTracer prev_tracer_;
mutable FunctionTracer key_tracer_;
mutable FunctionTracer value_tracer_;
};
class LevelDBTestIterator : public TransactionalLevelDBIterator {
public:
LevelDBTestIterator(std::unique_ptr<leveldb::Iterator> iterator,
base::WeakPtr<TransactionalLevelDBDatabase> db,
base::WeakPtr<TransactionalLevelDBTransaction> txn,
std::unique_ptr<LevelDBSnapshot> snapshot,
FailMethod fail_method,
int fail_on_call_num)
: TransactionalLevelDBIterator(std::move(iterator),
std::move(db),
std::move(txn),
std::move(snapshot)),
fail_method_(fail_method),
fail_on_call_num_(fail_on_call_num),
current_call_num_(0) {}
~LevelDBTestIterator() override = default;
private:
leveldb::Status Seek(std::string_view target) override {
if (fail_method_ != FailMethod::SEEK ||
++current_call_num_ != fail_on_call_num_)
return TransactionalLevelDBIterator::Seek(target);
return leveldb::Status::Corruption("Corrupted for test");
}
FailMethod fail_method_;
int fail_on_call_num_;
int current_call_num_;
};
MockBrowserTestIndexedDBClassFactory::MockBrowserTestIndexedDBClassFactory(
mojo::PendingReceiver<storage::mojom::MockFailureInjector> pending)
: failure_class_(FailClass::NOTHING), failure_method_(FailMethod::NOTHING) {
receiver_.Bind(std::move(pending));
}
MockBrowserTestIndexedDBClassFactory::~MockBrowserTestIndexedDBClassFactory() =
default;
std::unique_ptr<TransactionalLevelDBDatabase>
MockBrowserTestIndexedDBClassFactory::CreateLevelDBDatabase(
scoped_refptr<LevelDBState> state,
std::unique_ptr<LevelDBScopes> scopes,
scoped_refptr<base::SequencedTaskRunner> task_runner,
size_t max_open_iterators) {
instance_count_[FailClass::LEVELDB_DATABASE] =
instance_count_[FailClass::LEVELDB_DATABASE] + 1;
if (failure_class_ == FailClass::LEVELDB_DATABASE &&
instance_count_[FailClass::LEVELDB_DATABASE] ==
fail_on_instance_num_[FailClass::LEVELDB_DATABASE]) {
return std::make_unique<LevelDBTestDatabase>(
std::move(state), std::move(scopes), this, std::move(task_runner),
max_open_iterators, failure_method_,
fail_on_call_num_[FailClass::LEVELDB_DATABASE]);
}
return DefaultTransactionalLevelDBFactory::CreateLevelDBDatabase(
std::move(state), std::move(scopes), std::move(task_runner),
max_open_iterators);
}
std::unique_ptr<LevelDBDirectTransaction>
MockBrowserTestIndexedDBClassFactory::CreateLevelDBDirectTransaction(
TransactionalLevelDBDatabase* db) {
instance_count_[FailClass::LEVELDB_DIRECT_TRANSACTION] =
instance_count_[FailClass::LEVELDB_DIRECT_TRANSACTION] + 1;
if (failure_class_ == FailClass::LEVELDB_DIRECT_TRANSACTION &&
instance_count_[FailClass::LEVELDB_DIRECT_TRANSACTION] ==
fail_on_instance_num_[FailClass::LEVELDB_DIRECT_TRANSACTION]) {
return std::make_unique<LevelDBTestDirectTransaction>(
db, failure_method_,
fail_on_call_num_[FailClass::LEVELDB_DIRECT_TRANSACTION]);
}
return DefaultTransactionalLevelDBFactory::CreateLevelDBDirectTransaction(db);
}
scoped_refptr<TransactionalLevelDBTransaction>
MockBrowserTestIndexedDBClassFactory::CreateLevelDBTransaction(
TransactionalLevelDBDatabase* db,
std::unique_ptr<LevelDBScope> scope) {
instance_count_[FailClass::LEVELDB_TRANSACTION] =
instance_count_[FailClass::LEVELDB_TRANSACTION] + 1;
if (only_trace_calls_) {
return base::MakeRefCounted<LevelDBTraceTransaction>(
db, std::move(scope), instance_count_[FailClass::LEVELDB_TRANSACTION]);
}
if (failure_class_ == FailClass::LEVELDB_TRANSACTION &&
instance_count_[FailClass::LEVELDB_TRANSACTION] ==
fail_on_instance_num_[FailClass::LEVELDB_TRANSACTION]) {
return base::MakeRefCounted<LevelDBTestTransaction>(
db, std::move(scope), failure_method_,
fail_on_call_num_[FailClass::LEVELDB_TRANSACTION]);
}
return DefaultTransactionalLevelDBFactory::CreateLevelDBTransaction(
db, std::move(scope));
}
std::unique_ptr<TransactionalLevelDBIterator>
MockBrowserTestIndexedDBClassFactory::CreateIterator(
std::unique_ptr<leveldb::Iterator> iterator,
base::WeakPtr<TransactionalLevelDBDatabase> db,
base::WeakPtr<TransactionalLevelDBTransaction> txn,
std::unique_ptr<LevelDBSnapshot> snapshot) {
instance_count_[FailClass::LEVELDB_ITERATOR] =
instance_count_[FailClass::LEVELDB_ITERATOR] + 1;
if (only_trace_calls_) {
return std::make_unique<LevelDBTraceIterator>(
std::move(iterator), db, std::move(txn), std::move(snapshot),
instance_count_[FailClass::LEVELDB_ITERATOR]);
}
if (failure_class_ == FailClass::LEVELDB_ITERATOR &&
instance_count_[FailClass::LEVELDB_ITERATOR] ==
fail_on_instance_num_[FailClass::LEVELDB_ITERATOR]) {
return std::make_unique<LevelDBTestIterator>(
std::move(iterator), db, std::move(txn), std::move(snapshot),
failure_method_, fail_on_call_num_[FailClass::LEVELDB_ITERATOR]);
}
return DefaultTransactionalLevelDBFactory::CreateIterator(
std::move(iterator), db, std::move(txn), std::move(snapshot));
}
void MockBrowserTestIndexedDBClassFactory::FailOperation(
storage::mojom::FailClass failure_class,
storage::mojom::FailMethod failure_method,
int fail_on_instance_num,
int fail_on_call_num) {
VLOG(0) << "FailOperation: class=" << failure_class
<< ", method=" << failure_method
<< ", instanceNum=" << fail_on_instance_num
<< ", callNum=" << fail_on_call_num;
DCHECK(failure_class != FailClass::NOTHING);
DCHECK(failure_method != FailMethod::NOTHING);
failure_class_ = failure_class;
failure_method_ = failure_method;
fail_on_instance_num_[failure_class_] = fail_on_instance_num;
fail_on_call_num_[failure_class_] = fail_on_call_num;
instance_count_.clear();
}
} // namespace content::indexed_db