[PATCH datacenter-manager] tests: use tempfile instead using our own, in-tree reimplementation

[Lukas Wagner <l.wagner@proxmox.com>]

PBS started using it a while ago for tests, and also the
`namespaced_cache` in PDM already used it for its own test suite.

Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
---
 .../remote_collection_task.rs                 |  6 +-
 server/src/metric_collection/rrd_task.rs      | 10 ++--
 server/src/metric_collection/state.rs         |  5 +-
 server/src/remote_tasks/task_cache.rs         |  6 +-
 server/src/test_support/mod.rs                |  3 -
 server/src/test_support/temp.rs               | 60 -------------------
 6 files changed, 11 insertions(+), 79 deletions(-)
 delete mode 100644 server/src/test_support/temp.rs

diff --git a/server/src/metric_collection/remote_collection_task.rs b/server/src/metric_collection/remote_collection_task.rs
index d243dcf1..e630a99d 100644
--- a/server/src/metric_collection/remote_collection_task.rs
+++ b/server/src/metric_collection/remote_collection_task.rs
@@ -399,7 +399,6 @@ pub(super) mod tests {
         connection::{ClientFactory, PveClient},
         metric_collection::rrd_task::RrdStoreResult,
         pbs_client::PbsClient,
-        test_support::temp::NamedTempFile,
     };
 
     use super::*;
@@ -574,7 +573,7 @@ pub(super) mod tests {
 
         let config = make_remote_config();
 
-        let state_file = NamedTempFile::new(get_create_options()).unwrap();
+        let state_file = tempfile::NamedTempFile::new().unwrap();
         let state = MetricCollectionState::new(state_file.path().into(), get_create_options());
 
         let (_control_tx, control_rx) = tokio::sync::mpsc::channel(10);
@@ -627,7 +626,8 @@ pub(super) mod tests {
 
         let config = make_remote_config();
 
-        let state_file = NamedTempFile::new(get_create_options()).unwrap();
+        let state_file = tempfile::NamedTempFile::new().unwrap();
+
         let mut state = MetricCollectionState::new(state_file.path().into(), get_create_options());
 
         let now = proxmox_time::epoch_i64();
diff --git a/server/src/metric_collection/rrd_task.rs b/server/src/metric_collection/rrd_task.rs
index b5d6c008..99474140 100644
--- a/server/src/metric_collection/rrd_task.rs
+++ b/server/src/metric_collection/rrd_task.rs
@@ -428,17 +428,14 @@ mod tests {
     use proxmox_rrd_api_types::{RrdMode, RrdTimeframe};
     use pve_api_types::{ClusterMetrics, ClusterMetricsData};
 
-    use crate::{
-        metric_collection::remote_collection_task::tests::get_create_options,
-        test_support::temp::NamedTempDir,
-    };
+    use crate::metric_collection::remote_collection_task::tests::get_create_options;
 
     use super::*;
 
     #[tokio::test]
     async fn test_rrd_task_persists_data() -> Result<(), Error> {
         // Arrange
-        let dir = NamedTempDir::new()?;
+        let dir = tempfile::tempdir()?;
         let options = get_create_options().perm(nix::sys::stat::Mode::from_bits_truncate(0o700));
         let cache = Arc::new(RrdCache::new(dir.path(), options, options)?);
 
@@ -526,7 +523,8 @@ mod tests {
 
     #[test]
     fn store_datapoints_drops_future_dated() -> Result<(), Error> {
-        let dir = NamedTempDir::new()?;
+        let dir = tempfile::tempdir()?;
+
         let options = get_create_options().perm(nix::sys::stat::Mode::from_bits_truncate(0o700));
         let cache = RrdCache::new(dir.path(), options, options)?;
 
diff --git a/server/src/metric_collection/state.rs b/server/src/metric_collection/state.rs
index 8d98613f..889a8443 100644
--- a/server/src/metric_collection/state.rs
+++ b/server/src/metric_collection/state.rs
@@ -93,13 +93,12 @@ impl MetricCollectionState {
 #[cfg(test)]
 mod tests {
     use crate::metric_collection::remote_collection_task::tests::get_create_options;
-    use crate::test_support::temp::NamedTempFile;
 
     use super::*;
 
     #[test]
     fn save_and_load() -> Result<(), Error> {
-        let file = NamedTempFile::new(get_create_options())?;
+        let file = tempfile::NamedTempFile::new()?;
         let options = get_create_options();
         let mut state = MetricCollectionState::new(file.path().into(), options);
 
@@ -123,7 +122,7 @@ mod tests {
 
     #[test]
     fn test_retain() -> Result<(), Error> {
-        let file = NamedTempFile::new(get_create_options())?;
+        let file = tempfile::NamedTempFile::new()?;
         let options = get_create_options();
         let mut state = MetricCollectionState::new(file.path().into(), options);
 
diff --git a/server/src/remote_tasks/task_cache.rs b/server/src/remote_tasks/task_cache.rs
index b0b4a837..c13d9550 100644
--- a/server/src/remote_tasks/task_cache.rs
+++ b/server/src/remote_tasks/task_cache.rs
@@ -1255,8 +1255,6 @@ impl Iterator for JournalIterator {
 mod tests {
     use std::io::Cursor;
 
-    use crate::test_support::temp::NamedTempDir;
-
     use super::*;
 
     #[test]
@@ -1338,8 +1336,8 @@ mod tests {
 
     const DEFAULT_MAX_SIZE: u64 = 10000;
 
-    fn make_cache() -> Result<(NamedTempDir, TaskCache), Error> {
-        let tmp_dir = NamedTempDir::new()?;
+    fn make_cache() -> Result<(tempfile::TempDir, TaskCache), Error> {
+        let tmp_dir = tempfile::tempdir()?;
         let cache = TaskCache::new(
             tmp_dir.path(),
             CreateOptions::new(),
diff --git a/server/src/test_support/mod.rs b/server/src/test_support/mod.rs
index f026011c..5d264815 100644
--- a/server/src/test_support/mod.rs
+++ b/server/src/test_support/mod.rs
@@ -1,5 +1,2 @@
 #[cfg(remote_config = "faked")]
 pub mod fake_remote;
-
-#[cfg(test)]
-pub mod temp;
diff --git a/server/src/test_support/temp.rs b/server/src/test_support/temp.rs
deleted file mode 100644
index a93c914d..00000000
--- a/server/src/test_support/temp.rs
+++ /dev/null
@@ -1,60 +0,0 @@
-use std::path::{Path, PathBuf};
-
-use anyhow::Error;
-
-use proxmox_sys::fs::CreateOptions;
-
-/// Temporary file that be cleaned up when dropped.
-pub struct NamedTempFile {
-    path: PathBuf,
-}
-
-impl NamedTempFile {
-    /// Create a new temporary file.
-    ///
-    /// The file will be created with the passed [`CreateOptions`].
-    pub fn new(options: CreateOptions) -> Result<Self, Error> {
-        let base = std::env::temp_dir().join("test");
-        let (_, path) = proxmox_sys::fs::make_tmp_file(base, options)?;
-
-        Ok(Self { path })
-    }
-
-    /// Return the [`Path`] to the temporary file.
-    pub fn path(&self) -> &Path {
-        &self.path
-    }
-}
-
-impl Drop for NamedTempFile {
-    fn drop(&mut self) {
-        let _ = std::fs::remove_file(&self.path);
-    }
-}
-
-/// Temporary directory that is cleaned up when dropped.
-pub struct NamedTempDir {
-    path: PathBuf,
-}
-
-impl NamedTempDir {
-    /// Create a new temporary directory.
-    ///
-    /// The directory will be created with `0o700` permissions.
-    pub fn new() -> Result<Self, Error> {
-        let path = proxmox_sys::fs::make_tmp_dir("/tmp", None)?;
-
-        Ok(Self { path })
-    }
-
-    /// Return the [`Path`] to the temporary directory.
-    pub fn path(&self) -> &Path {
-        &self.path
-    }
-}
-
-impl Drop for NamedTempDir {
-    fn drop(&mut self) {
-        let _ = std::fs::remove_dir_all(&self.path);
-    }
-}
-- 
2.47.3