[PATCH v6 proxmox-backup 04/18] datastore: use temporary directory for chunk store test

[Robert Obkircher <r.obkircher@proxmox.com>]

Use the systems tmp directory instead of the package root, because the
latter might not always be writeable and because the created files
weren't even ignored by git.

This reduced the tests runtime from 3.2 to 0.6 seconds.

Signed-off-by: Robert Obkircher <r.obkircher@proxmox.com>
---
 pbs-datastore/src/chunk_store.rs | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/pbs-datastore/src/chunk_store.rs b/pbs-datastore/src/chunk_store.rs
index bd1dc353..1950be2b 100644
--- a/pbs-datastore/src/chunk_store.rs
+++ b/pbs-datastore/src/chunk_store.rs
@@ -980,19 +980,17 @@ impl ChunkExt {
 
 #[test]
 fn test_chunk_store1() {
-    let mut path = std::fs::canonicalize(".").unwrap(); // we need absolute path
-    path.push(".testdir");
+    let temp_dir = crate::temp_dir::TempDir::new().unwrap();
+    let path = temp_dir.path();
 
-    if let Err(_e) = std::fs::remove_dir_all(".testdir") { /* ignore */ }
-
-    let chunk_store = ChunkStore::open("test", &path, DatastoreFSyncLevel::None);
+    let chunk_store = ChunkStore::open("test", path, DatastoreFSyncLevel::None);
     assert!(chunk_store.is_err());
 
     let user = nix::unistd::User::from_uid(nix::unistd::Uid::current())
         .unwrap()
         .unwrap();
     let chunk_store =
-        ChunkStore::create("test", &path, user.uid, user.gid, DatastoreFSyncLevel::None).unwrap();
+        ChunkStore::create("test", path, user.uid, user.gid, DatastoreFSyncLevel::None).unwrap();
 
     let (chunk, digest) = crate::data_blob::DataChunkBuilder::new(&[0u8, 1u8])
         .build()
@@ -1005,8 +1003,8 @@ fn test_chunk_store1() {
     assert!(exists);
 
     let chunk_store =
-        ChunkStore::create("test", &path, user.uid, user.gid, DatastoreFSyncLevel::None);
+        ChunkStore::create("test", path, user.uid, user.gid, DatastoreFSyncLevel::None);
     assert!(chunk_store.is_err());
 
-    if let Err(_e) = std::fs::remove_dir_all(".testdir") { /* ignore */ }
+    temp_dir.delete().unwrap();
 }
-- 
2.47.3