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// Copyright (c) 2010 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 CancellationFlag class.
#include "base/cancellation_flag.h"
#include "base/logging.h"
#include "base/message_loop.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::CancellationFlag;
using base::TimeDelta;
using base::Thread;
namespace {
//------------------------------------------------------------------------------
// Define our test class.
//------------------------------------------------------------------------------
class CancelTask : public Task {
public:
explicit CancelTask(CancellationFlag* flag) : flag_(flag) {}
virtual void Run() {
ASSERT_DEBUG_DEATH(flag_->Set(), "");
}
private:
CancellationFlag* flag_;
};
TEST(CancellationFlagTest, SimpleSingleThreadedTest) {
CancellationFlag flag;
ASSERT_FALSE(flag.IsSet());
flag.Set();
ASSERT_TRUE(flag.IsSet());
}
TEST(CancellationFlagTest, DoubleSetTest) {
CancellationFlag flag;
ASSERT_FALSE(flag.IsSet());
flag.Set();
ASSERT_TRUE(flag.IsSet());
flag.Set();
ASSERT_TRUE(flag.IsSet());
}
TEST(CancellationFlagTest, SetOnDifferentThreadDeathTest) {
// Checks that Set() can't be called from any other thread.
// CancellationFlag should die on a DCHECK if Set() is called from
// other thread.
::testing::FLAGS_gtest_death_test_style = "threadsafe";
Thread t("CancellationFlagTest.SetOnDifferentThreadDeathTest");
ASSERT_TRUE(t.Start());
ASSERT_TRUE(t.message_loop());
ASSERT_TRUE(t.IsRunning());
CancellationFlag flag;
t.message_loop()->PostTask(FROM_HERE, new CancelTask(&flag));
}
} // namespace
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