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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "base/message_loop.h"
#include "base/object_watcher.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
typedef testing::Test ObjectWatcherTest;
class QuitDelegate : public base::ObjectWatcher::Delegate {
public:
virtual void OnObjectSignaled(HANDLE object) {
MessageLoop::current()->Quit();
}
};
class DecrementCountDelegate : public base::ObjectWatcher::Delegate {
public:
DecrementCountDelegate(int* counter) : counter_(counter) {
}
virtual void OnObjectSignaled(HANDLE object) {
--(*counter_);
}
private:
int* counter_;
};
}
TEST(ObjectWatcherTest, BasicSignal) {
base::ObjectWatcher watcher;
// A manual-reset event that is not yet signaled.
HANDLE event = CreateEvent(NULL, TRUE, FALSE, NULL);
QuitDelegate delegate;
bool ok = watcher.StartWatching(event, &delegate);
EXPECT_TRUE(ok);
SetEvent(event);
MessageLoop::current()->Run();
CloseHandle(event);
}
TEST(ObjectWatcherTest, BasicCancel) {
base::ObjectWatcher watcher;
// A manual-reset event that is not yet signaled.
HANDLE event = CreateEvent(NULL, TRUE, FALSE, NULL);
QuitDelegate delegate;
bool ok = watcher.StartWatching(event, &delegate);
EXPECT_TRUE(ok);
watcher.StopWatching();
CloseHandle(event);
}
TEST(ObjectWatcherTest, CancelAfterSet) {
base::ObjectWatcher watcher;
int counter = 1;
DecrementCountDelegate delegate(&counter);
// A manual-reset event that is not yet signaled.
HANDLE event = CreateEvent(NULL, TRUE, FALSE, NULL);
bool ok = watcher.StartWatching(event, &delegate);
EXPECT_TRUE(ok);
SetEvent(event);
// Let the background thread do its business
Sleep(30);
watcher.StopWatching();
MessageLoop::current()->RunAllPending();
// Our delegate should not have fired.
EXPECT_EQ(1, counter);
CloseHandle(event);
}
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