72 lines
2.6 KiB
TypeScript
72 lines
2.6 KiB
TypeScript
import type { ClientState, TestDefinition } from "../test-definition";
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import { assert } from "../utils/assert";
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function verifyOnlyLatestVersion(state: ClientState): void {
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assert(
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state.files.size === 1,
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`Expected 1 file, got ${state.files.size}: ${Array.from(state.files.keys()).join(", ")}`
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);
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assert(
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state.files.has("doc.md"),
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`Expected doc.md to exist, got: ${Array.from(state.files.keys()).join(", ")}`
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);
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const content = state.files.get("doc.md") ?? "";
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assert(
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content === "edit-5-final",
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`Expected doc.md to have "edit-5-final" (latest edit), got: "${content}"`
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);
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}
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export const offlineMultipleEditsTest: TestDefinition = {
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name: "Offline Multiple Edits Converge to Latest",
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description:
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"Client 0 creates a file and syncs. Client 0 goes offline, edits the file " +
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"5 times with different content. When Client 0 reconnects, both clients " +
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"must converge to the final version.",
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clients: 2,
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steps: [
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// Setup: create file and sync to both clients
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{ type: "create", client: 0, path: "doc.md", content: "original" },
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{ type: "enable-sync", client: 0 },
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{ type: "enable-sync", client: 1 },
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{ type: "sync" },
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{ type: "barrier" },
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{
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type: "assert-content",
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client: 1,
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path: "doc.md",
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content: "original"
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},
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// Client 0 goes offline
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{ type: "disable-sync", client: 0 },
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// Client 0 makes 5 sequential edits while offline
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{ type: "update", client: 0, path: "doc.md", content: "edit-1" },
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{ type: "update", client: 0, path: "doc.md", content: "edit-2" },
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{ type: "update", client: 0, path: "doc.md", content: "edit-3" },
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{ type: "update", client: 0, path: "doc.md", content: "edit-4" },
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{ type: "update", client: 0, path: "doc.md", content: "edit-5-final" },
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// Client 0 reconnects -- offline reconciliation should detect the
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// changed hash and sync the current on-disk content (edit-5-final)
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{ type: "enable-sync", client: 0 },
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{ type: "sync" },
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{ type: "barrier" },
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// Both clients should have the final version
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{
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type: "assert-content",
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client: 0,
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path: "doc.md",
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content: "edit-5-final"
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},
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{
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type: "assert-content",
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client: 1,
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path: "doc.md",
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content: "edit-5-final"
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},
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{ type: "assert-consistent", verify: verifyOnlyLatestVersion }
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]
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};
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