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