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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Tests of AtomicFlag class.
#include "base/atomic_flag.h"
#include "base/logging.h"
#include "base/spin_wait.h"
#include "base/time.h"
#include "base/thread.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
using base::AtomicFlag;
using base::TimeDelta;
using base::Thread;
namespace {
//------------------------------------------------------------------------------
// Define our test class.
//------------------------------------------------------------------------------
class NotifyTask : public Task {
public:
explicit NotifyTask(AtomicFlag* flag) : flag_(flag) {
}
virtual void Run() {
flag_->Set();
}
private:
AtomicFlag* flag_;
};
TEST(AtomicFlagTest, SimpleSingleThreadedTest) {
AtomicFlag flag;
CHECK(!flag.IsSet());
flag.Set();
CHECK(flag.IsSet());
}
TEST(AtomicFlagTest, SimpleSingleThreadedTestPrenotified) {
AtomicFlag flag(true);
CHECK(flag.IsSet());
}
#if defined(OS_WIN)
#define DISABLED_ON_WIN(x) DISABLED_##x
#else
#define DISABLED_ON_WIN(x) x
#endif
// AtomicFlag should die on a DCHECK if Set() is called more than once.
// This test isn't Windows-friendly yet since ASSERT_DEATH doesn't catch tests
// failed on DCHECK. See http://crbug.com/24885 for the details.
TEST(AtomicFlagTest, DISABLED_ON_WIN(DoubleSetDeathTest)) {
// Checks that Set() can't be called more than once.
::testing::FLAGS_gtest_death_test_style = "threadsafe";
AtomicFlag flag;
flag.Set();
ASSERT_DEBUG_DEATH(flag.Set(), "");
}
TEST(AtomicFlagTest, SimpleThreadedTest) {
Thread t("AtomicFlagTest.SimpleThreadedTest");
EXPECT_TRUE(t.Start());
EXPECT_TRUE(t.message_loop());
EXPECT_TRUE(t.IsRunning());
AtomicFlag flag;
CHECK(!flag.IsSet());
t.message_loop()->PostTask(FROM_HERE, new NotifyTask(&flag));
SPIN_FOR_TIMEDELTA_OR_UNTIL_TRUE(TimeDelta::FromSeconds(10),
flag.IsSet());
CHECK(flag.IsSet());
}
} // namespace
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