test: add remote control stress budgets

tests/stress-remote-control-script.test.mjs

@@ -0,0 +1,74 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import { spawn } from "node:child_process";
+import { mkdtemp, readFile, rm } from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+
+const repoRoot = path.resolve(import.meta.dirname, "..");
+
+function runStress(args) {
+  return new Promise((resolve) => {
+    const child = spawn(process.execPath, ["scripts/stress-remote-control.mjs", ...args], {
+      cwd: repoRoot,
+      env: process.env,
+      stdio: ["ignore", "pipe", "pipe"],
+    });
+    let stdout = "";
+    let stderr = "";
+    child.stdout.setEncoding("utf8");
+    child.stderr.setEncoding("utf8");
+    child.stdout.on("data", (chunk) => {
+      stdout += chunk;
+    });
+    child.stderr.on("data", (chunk) => {
+      stderr += chunk;
+    });
+    child.on("close", (status) => {
+      resolve({ status, stdout, stderr });
+    });
+  });
+}
+
+test("remote control stress script writes a reusable JSON report", async () => {
+  const tempDir = await mkdtemp(path.join(os.tmpdir(), "boss-stress-report-test-"));
+  const reportPath = path.join(tempDir, "remote-control-stress.json");
+  try {
+    const result = await runStress([
+      "--chain-tasks=4",
+      "--runtime-tasks=6",
+      "--runtime-concurrency=3",
+      "--timeout-ms=20000",
+      `--report-json=${reportPath}`,
+    ]);
+
+    assert.equal(result.status, 0, result.stderr || result.stdout);
+    const report = JSON.parse(await readFile(reportPath, "utf8"));
+    assert.equal(report.ok, true);
+    assert.equal(report.options.chainTasks, 4);
+    assert.equal(report.options.runtimeTasks, 6);
+    assert.match(report.startedAt, /^\d{4}-\d{2}-\d{2}T/);
+    assert.match(report.finishedAt, /^\d{4}-\d{2}-\d{2}T/);
+    assert.ok(report.durationMs >= 0);
+    assert.equal(report.summaries.length, 2);
+    assert.equal(report.summaries[0].missing, 0);
+    assert.equal(report.summaries[1].failed, 0);
+  } finally {
+    await rm(tempDir, { recursive: true, force: true });
+  }
+});
+
+test("remote control stress script fails when latency budget is exceeded", async () => {
+  const result = await runStress([
+    "--chain-tasks=4",
+    "--skip-runtime",
+    "--timeout-ms=20000",
+    "--max-chain-p95-ms=1",
+  ]);
+
+  assert.notEqual(result.status, 0);
+  const report = JSON.parse(result.stdout);
+  assert.equal(report.ok, false);
+  assert.equal(report.thresholdFailures.length, 1);
+  assert.equal(report.thresholdFailures[0].name, "chain_p95_latency");
+});