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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/os_crypt/async/browser/test_utils.h"
#include <memory>
#include "base/callback_list.h"
#include "base/functional/bind.h"
#include "base/no_destructor.h"
#include "base/task/sequenced_task_runner.h"
#include "components/os_crypt/async/browser/os_crypt_async.h"
#include "components/os_crypt/async/common/algorithm.mojom.h"
#include "components/os_crypt/async/common/encryptor.h"
#include "crypto/random.h"
namespace os_crypt_async {
class TestOSCryptAsync : public OSCryptAsync {
public:
explicit TestOSCryptAsync(bool is_sync_for_unittests)
: OSCryptAsync(
std::vector<std::pair<Precedence, std::unique_ptr<KeyProvider>>>()),
encryptor_(GetTestEncryptorForTesting()),
is_sync_for_unittests_(is_sync_for_unittests) {}
[[nodiscard]] base::CallbackListSubscription GetInstance(
InitCallback callback,
Encryptor::Option option) override {
if (is_sync_for_unittests_) {
std::move(callback).Run(encryptor_.Clone(option), true);
return base::CallbackListSubscription();
}
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE,
base::BindOnce(
[](Encryptor encryptor, InitCallback callback) {
std::move(callback).Run(std::move(encryptor), true);
},
encryptor_.Clone(option), std::move(callback)));
return base::CallbackListSubscription();
}
static TestEncryptor GetTestEncryptorForTesting() {
Encryptor::KeyRing keys;
keys.emplace(kDefaultTestKeyPrefix,
Encryptor::Key(crypto::RandBytesAsVector(
Encryptor::Key::kAES256GCMKeySize),
mojom::Algorithm::kAES256GCM));
Encryptor::Key key(
crypto::RandBytesAsVector(Encryptor::Key::kAES256GCMKeySize),
mojom::Algorithm::kAES256GCM);
keys.emplace(kOsCryptSyncCompatibleTestKeyPrefix, std::move(key));
TestEncryptor encryptor(std::move(keys), kDefaultTestKeyPrefix,
kOsCryptSyncCompatibleTestKeyPrefix);
return encryptor;
}
static TestEncryptor CloneEncryptorForTesting(Encryptor::Option option) {
return GetTestEncryptorForTesting().Clone(option);
}
private:
TestEncryptor encryptor_;
const bool is_sync_for_unittests_;
};
std::unique_ptr<OSCryptAsync> GetTestOSCryptAsyncForTesting(
bool is_sync_for_unittests) {
return std::make_unique<TestOSCryptAsync>(is_sync_for_unittests);
}
TestEncryptor GetTestEncryptorForTesting(Encryptor::Option option) {
return TestOSCryptAsync::CloneEncryptorForTesting(option);
}
} // namespace os_crypt_async
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