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// Copyright 2025 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/persistent_cache/backend_params_manager.h"
#include <memory>
#include "base/files/scoped_temp_dir.h"
#include "base/functional/bind.h"
#include "base/functional/callback_forward.h"
#include "base/run_loop.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "components/persistent_cache/backend_params.h"
#include "components/persistent_cache/persistent_cache.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace persistent_cache {
class BackendParamsManagerTest : public testing::Test {
void SetUp() override { CHECK(temp_dir_.CreateUniqueTempDir()); }
protected:
base::ScopedTempDir temp_dir_;
base::test::TaskEnvironment task_environment;
};
TEST_F(BackendParamsManagerTest, UnknownKeyTypePairQueryServedAsynchronously) {
BackendParamsManager params_manager(temp_dir_.GetPath());
base::RunLoop run_loop;
BackendParams backend_params;
params_manager.GetParamsSyncOrCreateAsync(
BackendType::kSqlite, "key",
BackendParamsManager::AccessRights::kReadWrite,
base::BindLambdaForTesting(
[&backend_params, &run_loop](const BackendParams& result) {
backend_params = result.Copy();
run_loop.Quit();
}));
// The callback was not invoked yet so files are not populated.
EXPECT_FALSE(backend_params.db_file.IsValid());
EXPECT_FALSE(backend_params.journal_file.IsValid());
// Wait for the callback to be invoked. If never invoked the test will time
// out.
run_loop.Run();
// Once received the params contain valid files.
EXPECT_TRUE(backend_params.db_file.IsValid());
EXPECT_TRUE(backend_params.journal_file.IsValid());
}
TEST_F(BackendParamsManagerTest, ExistingKeyTypePairQueryServedSynchronously) {
BackendParamsManager params_manager(temp_dir_.GetPath());
{
BackendParams backend_params;
base::RunLoop run_loop;
params_manager.GetParamsSyncOrCreateAsync(
BackendType::kSqlite, "key",
BackendParamsManager::AccessRights::kReadWrite,
base::BindLambdaForTesting(
[&backend_params, &run_loop](const BackendParams& result) {
backend_params = result.Copy();
run_loop.Quit();
}));
// The callback was not invoked yet so files are not populated.
EXPECT_FALSE(backend_params.db_file.IsValid());
EXPECT_FALSE(backend_params.journal_file.IsValid());
// Makes sure the callback runs on the ThreadPool.
run_loop.Run();
// Once received the params contain valid files.
EXPECT_TRUE(backend_params.db_file.IsValid());
EXPECT_TRUE(backend_params.journal_file.IsValid());
}
{
BackendParams backend_params;
base::RunLoop run_loop;
params_manager.GetParamsSyncOrCreateAsync(
BackendType::kSqlite, "key",
BackendParamsManager::AccessRights::kReadWrite,
base::BindLambdaForTesting(
[&backend_params, &run_loop](const BackendParams& result) {
backend_params = result.Copy();
run_loop.Quit();
}));
// No need to run `run_loop` since the callback was invoked synchronously.
// Once received the params contain valid files.
EXPECT_TRUE(backend_params.db_file.IsValid());
EXPECT_TRUE(backend_params.journal_file.IsValid());
}
}
} // namespace persistent_cache
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