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/*
* libjingle
* Copyright 2009, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <string>
#include "talk/base/event.h"
#include "talk/base/filelock.h"
#include "talk/base/fileutils.h"
#include "talk/base/gunit.h"
#include "talk/base/pathutils.h"
#include "talk/base/scoped_ptr.h"
#include "talk/base/thread.h"
namespace talk_base {
const static std::string kLockFile = "TestLockFile";
const static int kTimeoutMS = 5000;
class FileLockTest : public testing::Test, public Runnable {
public:
FileLockTest() : done_(false, false), thread_lock_failed_(false) {
}
virtual void Run(Thread* t) {
scoped_ptr<FileLock> lock(FileLock::TryLock(temp_file_.pathname()));
// The lock is already owned by the main thread of
// this test, therefore the TryLock(...) call should fail.
thread_lock_failed_ = lock.get() == NULL;
done_.Set();
}
protected:
virtual void SetUp() {
thread_lock_failed_ = false;
Filesystem::GetAppTempFolder(&temp_dir_);
temp_file_ = Pathname(temp_dir_.pathname(), kLockFile);
}
void LockOnThread() {
locker_.Start(this);
done_.Wait(kTimeoutMS);
}
Event done_;
Thread locker_;
bool thread_lock_failed_;
Pathname temp_dir_;
Pathname temp_file_;
};
TEST_F(FileLockTest, TestLockFileDeleted) {
scoped_ptr<FileLock> lock(FileLock::TryLock(temp_file_.pathname()));
EXPECT_TRUE(lock.get() != NULL);
EXPECT_FALSE(Filesystem::IsAbsent(temp_file_.pathname()));
lock->Unlock();
EXPECT_TRUE(Filesystem::IsAbsent(temp_file_.pathname()));
}
TEST_F(FileLockTest, TestLock) {
scoped_ptr<FileLock> lock(FileLock::TryLock(temp_file_.pathname()));
EXPECT_TRUE(lock.get() != NULL);
}
TEST_F(FileLockTest, TestLockX2) {
scoped_ptr<FileLock> lock1(FileLock::TryLock(temp_file_.pathname()));
EXPECT_TRUE(lock1.get() != NULL);
scoped_ptr<FileLock> lock2(FileLock::TryLock(temp_file_.pathname()));
EXPECT_TRUE(lock2.get() == NULL);
}
TEST_F(FileLockTest, TestThreadedLock) {
scoped_ptr<FileLock> lock(FileLock::TryLock(temp_file_.pathname()));
EXPECT_TRUE(lock.get() != NULL);
LockOnThread();
EXPECT_TRUE(thread_lock_failed_);
}
} // namespace talk_base
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