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test(runtime): make OCI status test hermetic

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This commit is contained in:
Marco Allegretti 2026-02-25 12:18:29 +01:00
parent 9554c4f6ff
commit 064981f716
1 changed files with 48 additions and 0 deletions
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48
crates/karapace-runtime/src/oci.rs
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@ -519,6 +519,54 @@ mod tests {
#[test]
fn oci_status_reports_not_running() {
use std::ffi::OsString;
use std::os::unix::fs::PermissionsExt;
use std::sync::Mutex;
static ENV_LOCK: Mutex<()> = Mutex::new(());
let _lock = ENV_LOCK.lock().unwrap();
struct PathGuard {
old_path: OsString,
}
impl Drop for PathGuard {
fn drop(&mut self) {
std::env::set_var("PATH", &self.old_path);
}
}
let fake_bin = tempfile::tempdir().unwrap();
let fake_crun = fake_bin.path().join("crun");
std::fs::write(
&fake_crun,
"#!/bin/sh\n\
if [ \"$1\" = \"--version\" ]; then\n\
echo crun-test\n\
exit 0\n\
fi\n\
if [ \"$1\" = \"state\" ]; then\n\
echo \"container does not exist\" 1>&2\n\
exit 1\n\
fi\n\
exit 1\n",
)
.unwrap();
let mut perms = std::fs::metadata(&fake_crun).unwrap().permissions();
perms.set_mode(0o755);
std::fs::set_permissions(&fake_crun, perms).unwrap();
let old_path = std::env::var_os("PATH").unwrap_or_default();
let _guard = PathGuard {
old_path: old_path.clone(),
};
let joined = std::env::join_paths(
std::iter::once(fake_bin.path().to_path_buf()).chain(std::env::split_paths(&old_path)),
)
.unwrap();
std::env::set_var("PATH", joined);
let dir = tempfile::tempdir().unwrap();
let backend = OciBackend::with_store_root(dir.path());
let status = backend.status("oci-test").unwrap();