bherbruckandClaude Opus 5.5
f40356a74f
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL
46 lines
2.0 KiB
Rust
46 lines
2.0 KiB
Rust
//! Kill the process while it saves: the design file is always the old version or the new one,
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//! whole, and opens.
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use std::process::Command;
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use std::time::Duration;
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fn round_of(path: &std::path::Path) -> Option<String> {
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let bytes = std::fs::read(path).ok()?;
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let doc = solvecraft_engine::io::read_design(&bytes).ok()?;
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doc.params.iter().find(|p| p.name == "save_round").map(|p| p.expr.clone())
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}
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#[test]
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fn killed_mid_save_the_old_file_survives() {
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let exe = env!("CARGO_BIN_EXE_solvecraft-cli");
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let dir = std::env::temp_dir().join(format!("solvecraft-kill-mid-save-{}", std::process::id()));
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let _ = std::fs::remove_dir_all(&dir);
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std::fs::create_dir_all(&dir).unwrap();
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let path = dir.join("design.solvecraft");
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let ok = Command::new(exe).args(["save-stress", &path.to_string_lossy(), "1"]).status().unwrap();
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assert!(ok.success());
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assert_eq!(round_of(&path).as_deref(), Some("0"));
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let mut kills = 0;
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let mut seen = std::collections::BTreeSet::new();
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for i in 0..25u64 {
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let mut child = Command::new(exe).args(["save-stress", &path.to_string_lossy(), "100000"]).spawn().unwrap();
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// Let it get into its save loop (building the design takes a moment), then kill it.
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std::thread::sleep(Duration::from_millis(150 + (i * 37) % 200));
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if child.try_wait().unwrap().is_none() {
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child.kill().unwrap();
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kills += 1;
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}
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let _ = child.wait();
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let round = round_of(&path);
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assert!(round.is_some(), "after kill {i} the design file is torn or missing");
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seen.insert(round);
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let bak = solvecraft_engine::io::backup_path(&path);
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if bak.exists() {
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assert!(round_of(&bak).is_some(), "after kill {i} the backup is torn");
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}
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}
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assert!(kills > 20, "the saver was killed while running ({kills})");
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assert!(seen.len() > 5, "the saver got to saving before it was killed ({seen:?})");
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let _ = std::fs::remove_dir_all(&dir);
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}
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