vault-link/frontend/deterministic-tests/src/tests/create-update-coalesce-server-pause.test.ts

50 lines
1.7 KiB
TypeScript

import type { ClientState, TestDefinition } from "../test-definition";
import { assert } from "../utils/assert";
function verifyFinalContent(state: ClientState): void {
assert(
state.files.size === 1,
`Expected 1 file, got ${state.files.size}: ${Array.from(state.files.keys()).join(", ")}`
);
assert(
state.files.has("doc.md"),
`Expected doc.md to exist`
);
const content = state.files.get("doc.md") ?? "";
assert(
content === "final version",
`Expected doc.md to have "final version", got: "${content}"`
);
}
export const createUpdateCoalesceServerPauseTest: TestDefinition = {
name: "Create + Update Coalescing During Server Pause",
description:
"Client 0 creates a file and immediately updates it while the server " +
"is paused. Both operations should coalesce in the queue. When the " +
"server resumes, the final content should be the updated version.",
clients: 2,
steps: [
{ type: "enable-sync", client: 0 },
{ type: "enable-sync", client: 1 },
// Pause server so HTTP requests stall
{ type: "pause-server" },
// Client 0: create then immediately update
{ type: "create", client: 0, path: "doc.md", content: "initial" },
{ type: "update", client: 0, path: "doc.md", content: "final version" },
// Wait a bit for requests to queue up
// Resume server
{ type: "resume-server" },
// Both sync
{ type: "sync" },
{ type: "barrier" },
// Final state: doc.md with "final version" on both clients
{ type: "assert-consistent", verify: verifyFinalContent }
]
};