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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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 https://mozilla.org/MPL/2.0/. */
#include <Foundation/Foundation.h>
#include "gtest/gtest.h"
#include "mozilla/SyncRunnable.h"
#include "nsIThread.h"
#include "nsIThreadManager.h"
using namespace mozilla;
// Tests whether an nsThread ran a block in its NSRunLoop.
// ThreadCreationOptions.isUiThread gets set to aIsUiThread.
// Returns true if a block ran on the NSRunLoop.
bool UiThreadRunsRunLoop(bool aIsUiThread) {
nsCOMPtr<nsIThread> thread;
nsIThreadManager::ThreadCreationOptions options;
options.isUiThread = aIsUiThread;
MOZ_ALWAYS_SUCCEEDS(NS_NewNamedThread(
"Testing Thread", getter_AddRefs(thread), nullptr, options));
__block bool blockRanInRunLoop = false;
{
// We scope this so `loop` doesn't live past `thread-Shutdown()` since this
// file is compiled without ARC.
NSRunLoop* loop = nil;
auto syncRunnable =
MakeRefPtr<SyncRunnable>(NS_NewRunnableFunction(__func__, [&] {
// If the thread doesn't already have an NSRunLoop, one will be
// created.
loop = NSRunLoop.currentRunLoop;
}));
MOZ_ALWAYS_SUCCEEDS(syncRunnable->DispatchToThread(thread));
[loop performBlock:^void() {
blockRanInRunLoop = true;
}];
}
thread->Shutdown();
return blockRanInRunLoop;
}
TEST(ThreadsMac, OptionsIsUiThread)
{
const bool isUiThread = true;
const bool isNoUiThread = false;
EXPECT_TRUE(UiThreadRunsRunLoop(isUiThread));
EXPECT_FALSE(UiThreadRunsRunLoop(isNoUiThread));
}
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