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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/run_loop.h"
#include "base/test/gtest_util.h"
#include "build/build_config.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/test_utils.h"
namespace content {
class BrowserThreadPostTaskBeforeInitBrowserTest : public ContentBrowserTest {
protected:
void SetUp() override {
// This should fail because the ThreadPool + TaskExecutor weren't created
// yet.
EXPECT_DCHECK_DEATH(
GetIOThreadTaskRunner({})->PostTask(FROM_HERE, base::DoNothing()));
// Obtaining a TaskRunner should also fail.
EXPECT_DCHECK_DEATH(GetIOThreadTaskRunner({}));
ContentBrowserTest::SetUp();
}
};
IN_PROC_BROWSER_TEST_F(BrowserThreadPostTaskBeforeInitBrowserTest,
ExpectFailures) {}
IN_PROC_BROWSER_TEST_F(ContentBrowserTest, ExpectedThreadPriorities) {
base::ThreadPriorityForTest expected_priority =
base::ThreadPriorityForTest::kNormal;
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_CHROMEOS)
// In browser main loop the kCompositing thread type is set.
// Only Windows, Android and ChromeOS will set kDisplay priority for
// kCompositing thread type. We omit Windows here as it has a special
// treatment for the UI thread.
#if BUILDFLAG(IS_CHROMEOS)
// TODO(1340997): ChromeOS results a kNormal priority unexpectedly.
expected_priority = base::ThreadPriorityForTest::kNormal;
#else
expected_priority = base::ThreadPriorityForTest::kDisplay;
#endif
#endif // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_CHROMEOS)
EXPECT_EQ(base::PlatformThread::GetCurrentThreadPriorityForTest(),
expected_priority);
// Browser IO thread is set to kCompositing except for Windows, so the
// `expected_priority` for browser IO is the same as browser main's.
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(
[](base::ThreadPriorityForTest expected_priority) {
EXPECT_EQ(base::PlatformThread::GetCurrentThreadPriorityForTest(),
expected_priority);
},
expected_priority));
BrowserThread::RunAllPendingTasksOnThreadForTesting(BrowserThread::IO);
}
} // namespace content
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