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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <tuple>
#include "base/run_loop.h"
#include "base/task/sequenced_task_runner.h"
#include "base/test/bind.h"
#include "build/build_config.h"
#include "components/services/storage/public/mojom/storage_service.mojom.h"
#include "components/services/storage/public/mojom/storage_usage_info.mojom.h"
#include "components/services/storage/public/mojom/test_api.test-mojom.h"
#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
#include "content/browser/storage_partition_impl.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/web_contents.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
namespace content {
namespace {
class StorageServiceRestartBrowserTest : public ContentBrowserTest {
public:
StorageServiceRestartBrowserTest() = default;
DOMStorageContextWrapper* dom_storage() {
auto* partition =
static_cast<StoragePartitionImpl*>(shell()
->web_contents()
->GetBrowserContext()
->GetDefaultStoragePartition());
return partition->GetDOMStorageContext();
}
void WaitForAnyLocalStorageDataAsync(base::OnceClosure callback) {
dom_storage()->GetLocalStorageControl()->GetUsage(base::BindOnce(
[](StorageServiceRestartBrowserTest* test, base::OnceClosure callback,
std::vector<storage::mojom::StorageUsageInfoPtr> usage) {
if (!usage.empty()) {
std::move(callback).Run();
return;
}
base::SequencedTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&StorageServiceRestartBrowserTest::
WaitForAnyLocalStorageDataAsync,
base::Unretained(test), std::move(callback)),
base::Milliseconds(50));
},
this, std::move(callback)));
}
void WaitForAnyLocalStorageData() {
base::RunLoop loop;
WaitForAnyLocalStorageDataAsync(loop.QuitClosure());
loop.Run();
}
mojo::Remote<storage::mojom::TestApi>& GetTestApi() {
if (!test_api_) {
StoragePartitionImpl::GetStorageServiceForTesting()->BindTestApi(
test_api_.BindNewPipeAndPassReceiver().PassPipe());
}
return test_api_;
}
void CrashStorageServiceAndWaitForRestart() {
mojo::Remote<storage::mojom::StorageService>& service =
StoragePartitionImpl::GetStorageServiceForTesting();
base::RunLoop loop;
service.set_disconnect_handler(base::BindLambdaForTesting([&] {
loop.Quit();
service.reset();
}));
GetTestApi()->CrashNow();
loop.Run();
test_api_.reset();
}
private:
mojo::Remote<storage::mojom::TestApi> test_api_;
};
IN_PROC_BROWSER_TEST_F(StorageServiceRestartBrowserTest, BasicReconnect) {
// Basic smoke test to ensure that we can force-crash the service and
// StoragePartitionImpl will internally re-establish a working connection to
// a new process.
GetTestApi().FlushForTesting();
EXPECT_TRUE(GetTestApi().is_connected());
CrashStorageServiceAndWaitForRestart();
GetTestApi().FlushForTesting();
EXPECT_TRUE(GetTestApi().is_connected());
}
IN_PROC_BROWSER_TEST_F(StorageServiceRestartBrowserTest,
SessionStorageRecovery) {
// Tests that the Session Storage API can recover and continue normal
// operation after a Storage Service crash.
EXPECT_TRUE(
NavigateToURL(shell(), GetTestUrl("dom_storage", "crash_recovery.html")));
std::ignore =
EvalJs(shell()->web_contents(), R"(setSessionStorageValue("foo", 42))");
// Note that for Session Storage we don't need to wait for a commit. This is
// racy, but that's the point: whether or not a commit happens in time, the
// renderer should always retain its local cache of stored values.
CrashStorageServiceAndWaitForRestart();
EXPECT_EQ("42", EvalJs(shell()->web_contents(),
R"(getSessionStorageValue("foo"))"));
}
IN_PROC_BROWSER_TEST_F(StorageServiceRestartBrowserTest, LocalStorageRecovery) {
// Tests that the Local Storage API can recover and continue normal operation
// after a Storage Service crash.
EXPECT_TRUE(
NavigateToURL(shell(), GetTestUrl("dom_storage", "crash_recovery.html")));
std::ignore =
EvalJs(shell()->web_contents(), R"(setLocalStorageValue("foo", 42))");
WaitForAnyLocalStorageData();
CrashStorageServiceAndWaitForRestart();
// Unlike Session Storage, Local Storage clobbers its renderer-side cache when
// the backend connection is lost. Thus, whether the data still exists depends
// on whether it managed to be flushed to disk before crashing, which is
// unpredictable.
EvalJsResult result =
EvalJs(shell()->web_contents(), R"(getLocalStorageValue("foo"))");
ASSERT_THAT(result, content::EvalJsResult::IsOk());
EXPECT_TRUE(result.value.GetString().empty() ||
result.value.GetString() == "42");
// Local Storage should resume working as expected after the service is
// restarted.
std::ignore =
EvalJs(shell()->web_contents(), R"(setLocalStorageValue("foo", 420))");
EXPECT_EQ("420",
EvalJs(shell()->web_contents(), R"(getLocalStorageValue("foo"))"));
}
} // namespace
} // namespace content
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