test: Add unit test for LockDirectory

Add a unit test for LockDirectory, introduced in #11281.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index 05138a9bfe..9490a5678f 100644
--- a/src/util.h
+++ b/src/util.h
@@ -174,6 +174,12 @@ int RaiseFileDescriptorLimit(int nMinFD);
 void AllocateFileRange(FILE *file, unsigned int offset, unsigned int length);
 bool RenameOver(fs::path src, fs::path dest);
 bool LockDirectory(const fs::path& directory, const std::string lockfile_name, bool probe_only=false);
+
+/** Release all directory locks. This is used for unit testing only, at runtime
+ * the global destructor will take care of the locks.
+ */
+void ReleaseDirectoryLocks();
+
 bool TryCreateDirectories(const fs::path& p);
 fs::path GetDefaultDataDir();
 const fs::path &GetDataDir(bool fNetSpecific = true);