cc-libs/tools/trapos-server/test-integration/duplicate.test.ts

58 lines
2.5 KiB
TypeScript

import assert from "node:assert/strict";
import test from "node:test";
import { formatFailure, startCraftos, startServer, waitFor } from "./harness.js";
// Two real computers with the same traposId (id:label): newest-wins. After both
// complete hello, exactly one registration exists; aborting the displaced first
// computer does not affect the live registration, and a gateway->computer ping is
// still answered by the newest computer.
test("duplicate traposId is resolved newest-wins", async () => {
const server = await startServer();
const TRAPOS_ID = "9:dup";
// Newest-wins is decided by the order hello frames reach the gateway, which is
// independent of the client-side READY print order. Spawn the two computers
// sequentially — only start `second` once `first` is registered server-side —
// so `second` is unambiguously the newer registration.
const first = startCraftos("gateway-client.lua", {
computerId: 9,
computerLabel: "dup",
shellArgs: [server.baseUrl, "-", "idle", "60"],
});
let second: ReturnType<typeof startCraftos> | undefined;
try {
await waitFor(() => first.snapshot().includes("__CLOUD_READY__"), 12_000, "first connected");
await waitFor(() => server.registry.has("local", TRAPOS_ID), 2_000, "first registered server-side");
const secondHandle = startCraftos("gateway-client.lua", {
computerId: 9,
computerLabel: "dup",
shellArgs: [server.baseUrl, "-", "idle"],
});
second = secondHandle;
await waitFor(() => secondHandle.snapshot().includes("__CLOUD_READY__"), 12_000, "second connected");
// Newest-wins: still exactly one registration for the shared id.
assert.equal(server.registry.count(), 1, "exactly one registration after the duplicate");
assert.ok(server.registry.has("local", TRAPOS_ID));
first.abort();
await first.done.catch(() => undefined);
const payload = await server.registry.request("local", TRAPOS_ID, "ping", {}, 2_000);
assert.deepEqual(payload, { traposId: TRAPOS_ID }, "newest stayed registered after first exited");
} catch (error) {
throw new Error(
formatFailure(
error instanceof Error ? error.message : String(error),
`first:\n${first.snapshot()}\nsecond:\n${second?.snapshot() ?? "(not started)"}`,
),
{ cause: error },
);
} finally {
first.abort();
second?.abort();
await Promise.all([first.done.catch(() => undefined), second?.done.catch(() => undefined)]);
await server.close();
}
});