71 lines
2.6 KiB
TypeScript
71 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 verifyConflictResolution(state: ClientState): void {
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const files = Array.from(state.files.keys());
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// B.md must exist (unaffected by the conflict)
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assert(
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state.files.has("B.md"),
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`Expected B.md to exist, got: ${files.join(", ")}`
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);
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assert(
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state.files.get("B.md") === "content-b",
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`Expected B.md to have "content-b", got: "${state.files.get("B.md")}"`
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);
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// A.md should not exist (either deleted or renamed away)
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assert(
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!state.files.has("A.md"),
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`A.md should not exist after conflict resolution, got: ${files.join(", ")}`
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);
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// If C.md exists (rename won over delete), it should have content-a
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if (state.files.has("C.md")) {
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assert(
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state.files.get("C.md") === "content-a",
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`If C.md exists, it should have "content-a", got: "${state.files.get("C.md")}"`
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);
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}
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}
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export const deleteRenameConflictTest: TestDefinition = {
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name: "Delete vs Rename Conflict",
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description:
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"Client 0 deletes A.md while Client 1 (offline) renames A.md to C.md. " +
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"When Client 1 reconnects, the system must reconcile the conflicting " +
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"operations. Both clients should converge to the same state.",
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clients: 2,
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steps: [
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// Setup: create A.md and B.md, sync to both clients
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{ type: "create", client: 0, path: "A.md", content: "content-a" },
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{ type: "create", client: 0, path: "B.md", content: "content-b" },
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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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{ type: "assert-exists", client: 1, path: "A.md" },
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{ type: "assert-exists", client: 1, path: "B.md" },
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// Client 1 goes offline
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{ type: "disable-sync", client: 1 },
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// Client 0 deletes A.md and syncs
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{ type: "delete", client: 0, path: "A.md" },
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{ type: "sync", client: 0 },
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// Client 1 (offline) renames A.md to C.md
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{ type: "rename", client: 1, oldPath: "A.md", newPath: "C.md" },
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// Client 1 reconnects
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{ type: "enable-sync", client: 1 },
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{ type: "sync", client: 1 },
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{ type: "barrier" },
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// Both clients must converge — the key invariant is consistency.
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// B.md should still exist on both (unaffected by the conflict).
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{ type: "assert-exists", client: 0, path: "B.md" },
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{ type: "assert-exists", client: 1, path: "B.md" },
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{ type: "assert-consistent", verify: verifyConflictResolution }
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]
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};
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