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[Support] Make sure sys::fs::remove can remove symbolic links and make sure LockFileManager can handle a symbolic link that points nowhere.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204422 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Argyrios Kyrtzidis
2014-03-21 01:25:37 +00:00
parent 5b460ed4cd
commit 2c8cd9a0ba
3 changed files with 37 additions and 8 deletions
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32
unittests/Support/LockFileManagerTest.cpp
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@ -44,4 +44,36 @@ TEST(LockFileManagerTest, Basic) {
ASSERT_FALSE(EC);
}
TEST(LockFileManagerTest, LinkLockExists) {
SmallString<64> TmpDir;
error_code EC;
EC = sys::fs::createUniqueDirectory("LockFileManagerTestDir", TmpDir);
ASSERT_FALSE(EC);
SmallString<64> LockedFile(TmpDir);
sys::path::append(LockedFile, "file");
SmallString<64> FileLocK(TmpDir);
sys::path::append(FileLocK, "file.lock");
SmallString<64> TmpFileLock(TmpDir);
sys::path::append(TmpFileLock, "file.lock-000");
EC = sys::fs::create_link(TmpFileLock.str(), FileLocK.str());
ASSERT_FALSE(EC);
{
// The lock file doesn't point to a real file, so we should successfully
// acquire it.
LockFileManager Locked(LockedFile);
EXPECT_EQ(LockFileManager::LFS_Owned, Locked.getState());
}
// Now that the lock is out of scope, the file should be gone.
EXPECT_FALSE(sys::fs::exists(StringRef(LockedFile)));
EC = sys::fs::remove(StringRef(TmpDir));
ASSERT_FALSE(EC);
}
} // end anonymous namespace