power loss

frontend/test-support/observer.test.ts

@@ -0,0 +1,15 @@
+import assert from "node:assert/strict";
+import { test } from "node:test";
+import { spawnSync } from "node:child_process";
+import { resolve } from "node:path";
+test("a status observer exception must not terminate a background sync process", () => {
+    const result = spawnSync(
+        process.execPath,
+        [
+            resolve(__dirname, "../node_modules/tsx/dist/cli.mjs"),
+            resolve(__dirname, "listener-crash-child.ts")
+        ],
+        { encoding: "utf8", timeout: 10000 }
+    );
+    assert.equal(result.status, 0, result.stderr);
+});