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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/webdata/common/web_database_service.h"
#include <array>
#include "base/memory/scoped_refptr.h"
#include "base/task/sequenced_task_runner.h"
#include "base/test/mock_callback.h"
#include "base/test/task_environment.h"
#include "base/test/test_future.h"
#include "components/os_crypt/async/browser/test_utils.h"
#include "components/webdata/common/web_database.h"
#include "components/webdata/common/web_database_service.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
using ::testing::_;
using ::testing::ElementsAre;
using ::testing::ResultOf;
using RequestMockCallback =
base::MockOnceCallback<std::unique_ptr<WDTypedResult>(WebDatabase*)>;
using ResultFuture = base::test::TestFuture<WebDataServiceBase::Handle,
std::unique_ptr<WDTypedResult>>;
template <typename T, typename Matcher>
testing::Matcher<std::unique_ptr<WDTypedResult>> ValueOfWDResult(
Matcher&& matcher) {
return ResultOf(
[](const std::unique_ptr<WDTypedResult>& result) {
return static_cast<WDResult<T>*>(result.get())->GetValue();
},
std::forward<Matcher>(matcher));
}
class TestTable : public WebDatabaseTable {
public:
TestTable() = default;
TestTable(const TestTable&) = delete;
TestTable& operator=(const TestTable&) = delete;
~TestTable() override = default;
protected:
// WebDatabaseTable:
WebDatabaseTable::TypeKey GetTypeKey() const override {
static int table_key = 0;
return reinterpret_cast<void*>(&table_key);
}
bool CreateTablesIfNecessary() override { return true; }
bool MigrateToVersion(int version, bool* update_compatible_version) override {
return true;
}
};
class WebDatabaseServiceTest : public testing::Test {
public:
WebDatabaseServiceTest() = default;
~WebDatabaseServiceTest() override = default;
void SetUp() override {
wdbs_ = base::MakeRefCounted<WebDatabaseService>(
base::FilePath(WebDatabase::kInMemoryPath),
base::SequencedTaskRunner::GetCurrentDefault(),
base::SequencedTaskRunner::GetCurrentDefault());
wdbs_->AddTable(std::make_unique<TestTable>());
wdbs_->LoadDatabase(os_crypt_.get());
WaitForEmptyDBSequence();
}
void TearDown() override {
wdbs_->ShutdownDatabase();
WaitForEmptyDBSequence();
}
void WaitForEmptyDBSequence() {
base::RunLoop run_loop;
wdbs_->GetDbSequence()->PostTaskAndReply(FROM_HERE, base::DoNothing(),
run_loop.QuitClosure());
run_loop.Run();
}
WebDatabaseService& wdbs() { return *wdbs_; }
private:
base::test::TaskEnvironment task_environment_;
std::unique_ptr<os_crypt_async::OSCryptAsync> os_crypt_ =
os_crypt_async::GetTestOSCryptAsyncForTesting(
/*is_sync_for_unittests=*/true);
scoped_refptr<WebDatabaseService> wdbs_;
};
// Tests that tasks and their replies posted by ScheduleDBTaskWithResult() are
// run.
TEST_F(WebDatabaseServiceTest, ScheduleDBTaskWithResult_RunsTask) {
RequestMockCallback request;
ResultFuture result;
EXPECT_CALL(request, Run(wdbs().GetDatabaseOnDB()))
.WillOnce([](WebDatabase* db) {
return std::make_unique<WDResult<int64_t>>(INT64_RESULT, 123);
});
wdbs().ScheduleDBTaskWithResult(FROM_HERE, request.Get(),
result.GetCallback());
EXPECT_THAT(result.Get<1>(), ValueOfWDResult<int64_t>(123));
}
// Tests that pending requests posted by ScheduleDBTaskWithResult() can be
// cancelled.
TEST_F(WebDatabaseServiceTest, ScheduleDBTaskWithResult_Cancelable) {
// We start three requests and cancel the second one before any of them
// finishes.
std::array<RequestMockCallback, 3> requests{};
std::array<ResultFuture, 3> results{};
std::array<WebDataServiceBase::Handle, 3> handles{};
EXPECT_CALL(requests[0], Run(wdbs().GetDatabaseOnDB()))
.WillOnce([](WebDatabase* db) {
return std::make_unique<WDResult<int64_t>>(INT64_RESULT, 0);
});
EXPECT_CALL(requests[2], Run(wdbs().GetDatabaseOnDB()))
.WillOnce([](WebDatabase* db) {
return std::make_unique<WDResult<int64_t>>(INT64_RESULT, 2);
});
handles[0] = wdbs().ScheduleDBTaskWithResult(FROM_HERE, requests[0].Get(),
results[0].GetCallback());
handles[1] = wdbs().ScheduleDBTaskWithResult(FROM_HERE, requests[1].Get(),
results[1].GetCallback());
handles[2] = wdbs().ScheduleDBTaskWithResult(FROM_HERE, requests[2].Get(),
results[2].GetCallback());
EXPECT_THAT(handles, ElementsAre(1, 2, 3));
wdbs().CancelRequest(handles[1]);
EXPECT_THAT(results[0].Get<1>(), ValueOfWDResult<int64_t>(0));
// requests[1] got cancelled.
EXPECT_THAT(results[2].Get<1>(), ValueOfWDResult<int64_t>(2));
}
} // namespace
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