llvm-6502/unittests/Support/LockFileManagerTest.cpp
Reid Kleckner 97c57dfcb4 Fix boolean logic in LockFileManager and test it
This fixes a bug from r187826.

Reviewers: hans

Differential Revision: http://llvm-reviews.chandlerc.com/D1304

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187846 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-07 01:22:04 +00:00

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1.4 KiB
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//===- unittests/LockFileManagerTest.cpp - LockFileManager tests ----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/LockFileManager.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "gtest/gtest.h"
#include <memory>
using namespace llvm;
namespace {
TEST(LockFileManagerTest, Basic) {
SmallString<64> TmpDir;
error_code EC;
EC = sys::fs::createUniqueDirectory("LockFileManagerTestDir", TmpDir);
ASSERT_FALSE(EC);
SmallString<64> LockedFile(TmpDir);
sys::path::append(LockedFile, "file.lock");
{
// The lock file should not exist, so we should successfully acquire it.
LockFileManager Locked1(LockedFile);
EXPECT_EQ(LockFileManager::LFS_Owned, Locked1.getState());
// Attempting to reacquire the lock should fail. Waiting on it would cause
// deadlock, so don't try that.
LockFileManager Locked2(LockedFile);
EXPECT_NE(LockFileManager::LFS_Owned, Locked2.getState());
}
// Now that the lock is out of scope, the file should be gone.
EXPECT_FALSE(sys::fs::exists(StringRef(LockedFile)));
sys::fs::remove_all(StringRef(TmpDir));
}
} // end anonymous namespace