gecko-dev/storage/test/gtest/test_service_init_backgroun...

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim set:sw=2 ts=2 et lcs=trail\:.,tab\:>~ : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "storage_test_harness.h"
#include "nsThreadUtils.h"
/**
* This file tests that the storage service cannot be initialized off the main
* thread.
*/
////////////////////////////////////////////////////////////////////////////////
//// Helpers
class ServiceInitializer : public mozilla::Runnable
{
public:
ServiceInitializer() : mozilla::Runnable("ServiceInitializer") {}
NS_IMETHOD Run() override
{
// Use an explicit do_GetService instead of getService so that the check in
// getService doesn't blow up.
nsCOMPtr<mozIStorageService> service = do_GetService("@mozilla.org/storage/service;1");
do_check_false(service);
return NS_OK;
}
};
////////////////////////////////////////////////////////////////////////////////
//// Test Functions
// HACK ALERT: this test fails if it runs after any of the other storage tests
// because the storage service will have been initialized and the
// do_GetService() call in ServiceInitializer::Run will succeed. So we need a
// way to force it to run before all the other storage gtests. As it happens,
// gtest has a concept of "death tests" that, among other things, run before
// all non-death tests. By merely using a "DeathTest" suffix here this becomes
// a death test -- even though it doesn't use any of the normal death test
// features -- which ensures this is the first storage test to run.
TEST(storage_service_init_background_thread_DeathTest, Test)
{
nsCOMPtr<nsIRunnable> event = new ServiceInitializer();
do_check_true(event);
nsCOMPtr<nsIThread> thread;
do_check_success(NS_NewNamedThread("StorageService", getter_AddRefs(thread)));
do_check_success(thread->Dispatch(event, NS_DISPATCH_NORMAL));
// Shutting down the thread will spin the event loop until all work in its
// event queue is completed. This will act as our thread synchronization.
do_check_success(thread->Shutdown());
}