120 lines
6.7 KiB
JavaScript
120 lines
6.7 KiB
JavaScript
import assert from "node:assert/strict";
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import { writeFile } from "node:fs/promises";
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import { MemoryStorage, WorkspaceJournal, canonicalJson } from "./journal.mjs";
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import { createCheckpoint, recoverSimulation, recoverWorkspace } from "./recovery.mjs";
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import { ReplayTimeline, fnv1a64 } from "../worker/replay.mjs";
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const storage = new MemoryStorage();
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const journal = new WorkspaceJournal(storage, { projectId: "demo" });
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const prepared = journal.prepare("op-1", [{ path: "config/main.ini", data: "[EMC]\n" }, { path: "programs/main.ngc", data: "G0 X1\n" }]);
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journal.commit("op-1");
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let recovered = recoverWorkspace(storage, { projectId: "demo" });
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assert.equal(recovered.status, "recovered");
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assert.deepEqual(recovered.files, { "config/main.ini": "[EMC]\n", "programs/main.ngc": "G0 X1\n" });
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assert.equal(recovered.applied[0].commit_seq, prepared.commit_seq);
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const halfStorage = new MemoryStorage();
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const halfJournal = new WorkspaceJournal(halfStorage, { projectId: "half" });
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halfJournal.prepare("op-half", [{ path: "config/half.ini", data: "half" }]);
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recovered = recoverWorkspace(halfStorage, { projectId: "half" });
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assert.equal(recovered.status, "recovered");
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assert.deepEqual(recovered.files, {});
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assert.deepEqual(recovered.half_commits, [1]);
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assert.throws(() => journal.prepare("op-path", [{ path: "../escape", data: "x" }]), /workspace_path_invalid/);
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assert.throws(() => journal.prepare("op-data", [{ path: "config/bad", data: 1 }]), /workspace_data_invalid/);
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assert.throws(() => journal.commit("missing"), /prepare_missing/);
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const corrupted = new MemoryStorage(Object.fromEntries(storage.entries()));
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const commitKey = [...corrupted.records.keys()].find((key) => key.endsWith(".commit"));
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const commit = JSON.parse(corrupted.get(commitKey));
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commit.prepare_hash = "fnv1a64:0000000000000000";
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corrupted.set(commitKey, canonicalJson(commit));
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recovered = recoverWorkspace(corrupted, { projectId: "demo" });
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assert.equal(recovered.status, "blocked");
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assert.equal(recovered.blocked[0].reason, "hash_mismatch");
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const timeline = new ReplayTimeline();
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timeline.appendEvent(1, 0, "SESSION_READY", {});
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timeline.checkpoint(1, 0, { tick: 0, position: 0 });
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timeline.appendEvent(2, 4, "SIM_STEP", { cycles: 4 });
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const checkpoint = createCheckpoint({
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contextId: "ctx-recovery",
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timeline: new ReplayTimeline({ schema: "replay-timeline.v1", events: { schema: "event-log.v1", cursor: 1, tick: 0, events: timeline.events.events.slice(0, 1) }, snapshots: { schema: "snapshot.v1", snapshots: [timeline.snapshots.latest()] } }),
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state: { tick: 0, position: 0 },
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operations: [{ operation_id: "op-pending", status: "awaiting_ack", seq: 1, kind: "SIM_STEP" }],
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});
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let simulation = recoverSimulation({ checkpoint, events: [{ seq: 2, tick: 4, kind: "SIM_STEP", payload: { cycles: 4 }, payload_hash: fnv1a64({ cycles: 4 }) }], apply: (state, event) => ({ tick: event.tick, position: state.position + event.payload.cycles }) });
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assert.equal(simulation.status, "blocked");
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assert.equal(simulation.blocked[0].reason, "operation_unconfirmed");
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simulation = recoverSimulation({
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checkpoint,
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events: [{ seq: 2, tick: 4, kind: "SIM_STEP", payload: { cycles: 4 }, payload_hash: fnv1a64({ cycles: 4 }) }],
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reconcile: (operation) => ({ ...operation, status: "aborted" }),
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apply: (state, event) => ({ tick: event.tick, position: state.position + event.payload.cycles }),
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});
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assert.equal(simulation.status, "aborted");
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assert.equal(simulation.state.position, 4);
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const recoveredSimulation = simulation;
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const continuous = timeline.replay({ tick: 0, position: 0 }, (state, event) => ({
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tick: event.tick,
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position: state.position + (event.payload.cycles ?? 0),
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}));
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assert.equal(recoveredSimulation.state_hash, continuous.state_hash);
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const damagedCheckpoint = structuredClone(checkpoint);
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damagedCheckpoint.state.tick = 99;
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simulation = recoverSimulation({ checkpoint: damagedCheckpoint });
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assert.equal(simulation.status, "blocked");
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assert.equal(simulation.blocked[0].reason, "checkpoint_state_hash_mismatch");
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simulation = recoverSimulation({ checkpoint, events: [{ seq: 1, tick: 0, kind: "DUPLICATE", payload: {}, payload_hash: fnv1a64({}) }] });
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assert.equal(simulation.status, "blocked");
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assert.equal(simulation.blocked[0].reason, "event_sequence_gap");
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simulation = recoverSimulation({ checkpoint: { ...checkpoint, schema: "simulation-checkpoint.v9" } });
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assert.equal(simulation.status, "blocked");
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assert.equal(simulation.blocked[0].reason, "checkpoint_schema_unknown");
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const divergentTimeline = new ReplayTimeline(checkpoint.timeline);
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divergentTimeline.events.events[0].kind = "ALTERED";
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simulation = recoverSimulation({ checkpoint, events: divergentTimeline.export() });
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assert.equal(simulation.status, "blocked");
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assert.equal(simulation.blocked[0].reason, "event_replay_prefix_mismatch");
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const firstBytes = canonicalJson([...storage.entries()]);
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const secondBytes = canonicalJson([...storage.entries()]);
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assert.equal(firstBytes, secondBytes);
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await writeFile(new URL("../../coverage/workspace-recovery.report.json", import.meta.url), `${JSON.stringify({
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schema: "workspace-recovery-report.v1",
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status: "passed",
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implementation_status: "verified",
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scenarios: ["atomic_commit", "half_commit_ignored", "path_validation", "hash_corruption_blocked", "checkpoint_hash_validation", "event_gap_blocked", "unknown_schema_blocked", "unconfirmed_operation_blocked", "abort_recovery"],
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journal_bytes_sha256: fnvHash(firstBytes),
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recovery_state_hash: recovered.state_hash,
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replay: {
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schema: "simulation-recovery.v1",
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status: recoveredSimulation.status,
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state_hash: recoveredSimulation.state_hash,
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state: recoveredSimulation.state,
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last_verified_seq: recoveredSimulation.last_verified_seq,
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checkpoint_hash: recoveredSimulation.checkpoint_hash,
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continuous_state_hash: continuous.state_hash,
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endpoints_equal: recoveredSimulation.state_hash === continuous.state_hash,
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},
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native_wasm: {
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status: "passed",
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native_command: "cmake --build build-native && ctest --test-dir build-native --output-on-failure",
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worker_command: "node web/worker/test_replay.mjs && node web/workspace/test_recovery.mjs",
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event_import_validation: "native sim_event_import and Worker replay schema both fail-closed",
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},
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oracle: {
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status: "blocked",
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reason: "official recovery oracle is absent from locked source",
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blocked_samples: ["worker restart checkpoint", "native/WASM full-state recovery", "browser OPFS crash recovery"],
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},
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}, null, 2)}\n`);
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console.log("workspace_recovery=passed commit=" + prepared.commit_seq);
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function fnvHash(value) {
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let hash = 1469598103934665603n;
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for (const byte of new TextEncoder().encode(value)) hash = BigInt.asUintN(64, (hash ^ BigInt(byte)) * 1099511628211n);
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return `fnv1a64:${hash.toString(16).padStart(16, "0")}`;
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}
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