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hive-c0re: extract read_from so the prune_unknown test exercises the real wiring

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damocles 2026-10-08 00:41:29 +02:00 • committed by mara
commit 1d120289d1
1 changed files with 10 additions and 7 deletions
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17
hive-c0re/src/agent_config/tool_groups.rs
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@ -41,7 +41,11 @@ pub fn tool_groups_path() -> PathBuf {
/// honoured — but `read` itself never writes; unknown names stay on disk /// honoured — but `read` itself never writes; unknown names stay on disk
/// until the next `set_groups` rewrites the file. /// until the next `set_groups` rewrites the file.
pub fn read() -> std::io::Result<BTreeMap<String, Vec<String>>> { pub fn read() -> std::io::Result<BTreeMap<String, Vec<String>>> {
let mut map = super::read_map(&tool_groups_path())?; read_from(&tool_groups_path())
}
fn read_from(path: &Path) -> std::io::Result<BTreeMap<String, Vec<String>>> {
let mut map = super::read_map(path)?;
prune_unknown(&mut map); prune_unknown(&mut map);
Ok(map) Ok(map)
} }
@ -214,16 +218,15 @@ mod tests {
} }
#[test] #[test]
fn read_drops_an_unknown_name_still_on_disk_without_rewriting_the_file() { fn read_from_drops_an_unknown_name_still_on_disk_without_rewriting_the_file() {
let dir = tempfile::tempdir().expect("tempdir"); let dir = tempfile::tempdir().expect("tempdir");
let path = dir.path().join(TOOL_GROUPS_FILE); let path = dir.path().join(TOOL_GROUPS_FILE);
std::fs::write(&path, r#"{"alice": ["messaging", "diagnostics"]}"#).expect("seed"); std::fs::write(&path, r#"{"alice": ["messaging", "diagnostics"]}"#).expect("seed");
let map: BTreeMap<String, Vec<String>> = { // Exercises `read()`'s own wiring, not a hand-rolled equivalent —
let mut m = crate::agent_config::read_map(&path).expect("read"); // deleting the `prune_unknown` call inside `read_from` must fail
prune_unknown(&mut m); // this assertion.
m let map = read_from(&path).expect("read_from");
};
assert_eq!(map["alice"], vec!["messaging".to_owned()]); assert_eq!(map["alice"], vec!["messaging".to_owned()]);
// `read()` itself never writes — the stale name is still on disk. // `read()` itself never writes — the stale name is still on disk.