1 /* 2 * libjingle 3 * Copyright 2009, Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <string> 29 30 #include "talk/base/event.h" 31 #include "talk/base/filelock.h" 32 #include "talk/base/fileutils.h" 33 #include "talk/base/gunit.h" 34 #include "talk/base/pathutils.h" 35 #include "talk/base/scoped_ptr.h" 36 #include "talk/base/thread.h" 37 38 namespace talk_base { 39 40 const static std::string kLockFile = "TestLockFile"; 41 const static int kTimeoutMS = 5000; 42 43 class FileLockTest : public testing::Test, public Runnable { 44 public: 45 FileLockTest() : done_(false, false), thread_lock_failed_(false) { 46 } 47 48 virtual void Run(Thread* t) { 49 scoped_ptr<FileLock> lock(FileLock::TryLock(temp_file_.pathname())); 50 // The lock is already owned by the main thread of 51 // this test, therefore the TryLock(...) call should fail. 52 thread_lock_failed_ = lock.get() == NULL; 53 done_.Set(); 54 } 55 56 protected: 57 virtual void SetUp() { 58 thread_lock_failed_ = false; 59 Filesystem::GetAppTempFolder(&temp_dir_); 60 temp_file_ = Pathname(temp_dir_.pathname(), kLockFile); 61 } 62 63 void LockOnThread() { 64 locker_.Start(this); 65 done_.Wait(kTimeoutMS); 66 } 67 68 Event done_; 69 Thread locker_; 70 bool thread_lock_failed_; 71 Pathname temp_dir_; 72 Pathname temp_file_; 73 }; 74 75 TEST_F(FileLockTest, TestLockFileDeleted) { 76 scoped_ptr<FileLock> lock(FileLock::TryLock(temp_file_.pathname())); 77 EXPECT_TRUE(lock.get() != NULL); 78 EXPECT_FALSE(Filesystem::IsAbsent(temp_file_.pathname())); 79 lock->Unlock(); 80 EXPECT_TRUE(Filesystem::IsAbsent(temp_file_.pathname())); 81 } 82 83 TEST_F(FileLockTest, TestLock) { 84 scoped_ptr<FileLock> lock(FileLock::TryLock(temp_file_.pathname())); 85 EXPECT_TRUE(lock.get() != NULL); 86 } 87 88 TEST_F(FileLockTest, TestLockX2) { 89 scoped_ptr<FileLock> lock1(FileLock::TryLock(temp_file_.pathname())); 90 EXPECT_TRUE(lock1.get() != NULL); 91 92 scoped_ptr<FileLock> lock2(FileLock::TryLock(temp_file_.pathname())); 93 EXPECT_TRUE(lock2.get() == NULL); 94 } 95 96 TEST_F(FileLockTest, TestThreadedLock) { 97 scoped_ptr<FileLock> lock(FileLock::TryLock(temp_file_.pathname())); 98 EXPECT_TRUE(lock.get() != NULL); 99 100 LockOnThread(); 101 EXPECT_TRUE(thread_lock_failed_); 102 } 103 104 } // namespace talk_base 105
