Files
Multi-Debrid-Downloader/tests/extraction-coordinator.test.ts
T
Sucukdeluxe 36eaafd5b9 feat(extraction): add global archive coordinator
Add a fair operation-aware queue that owns the global archive child limit across packages and extraction modes. Support live resizing, immutable operation identity, selective run and package cancellation, ghost-waiter cleanup, idempotent permits, deduplicated multipart disk reservations, held operation leases, and deadline-bounded shutdown draining. Cover peak concurrency, fairness, resize, cancellation, multi-batch drain renewal, terminal lease paths, multipart accounting, and shutdown ordering with focused RED-to-GREEN tests.
2026-08-22 16:36:12 +02:00

335 lines
13 KiB
TypeScript

import { describe, expect, it, vi } from "vitest";
import {
ExtractionCancelledError,
ExtractionCoordinator,
type ExtractionOperationContext
} from "../src/main/extraction-coordinator";
type Deferred<T> = {
promise: Promise<T>;
resolve: (value: T | PromiseLike<T>) => void;
reject: (reason?: unknown) => void;
};
function deferred<T>(): Deferred<T> {
let resolve!: Deferred<T>["resolve"];
let reject!: Deferred<T>["reject"];
const promise = new Promise<T>((resolvePromise, rejectPromise) => {
resolve = resolvePromise;
reject = rejectPromise;
});
return { promise, resolve, reject };
}
function context(operationId: string, packageId: string, runOwnerId: string): ExtractionOperationContext {
return {
operationId,
packageId,
generation: 1,
runOwnerId
};
}
function lease(events: string[] = []) {
let released = false;
return {
get released() {
return released;
},
release: vi.fn(() => {
if (released) {
return;
}
released = true;
events.push("lease-release");
})
};
}
async function flush(): Promise<void> {
await Promise.resolve();
await Promise.resolve();
}
describe("ExtractionCoordinator", () => {
it("enforces one global archive-child peak across full, hybrid and nested operations", async () => {
const coordinator = new ExtractionCoordinator(2);
const operations = await Promise.all([
coordinator.beginOperation({ context: context("full", "package-a", "run-a") }),
coordinator.beginOperation({ context: context("hybrid", "package-b", "run-a") }),
coordinator.beginOperation({ context: context("nested", "package-c", "run-b") })
]);
let active = 0;
let peak = 0;
const gates = Array.from({ length: 6 }, () => deferred<void>());
const jobs = gates.map((gate, index) => coordinator.scheduleArchive(
operations[index % operations.length],
`archive-${index}`,
async () => {
active += 1;
peak = Math.max(peak, active);
await gate.promise;
active -= 1;
}
));
await flush();
expect(active).toBe(2);
expect(peak).toBe(2);
for (const gate of gates) {
gate.resolve();
await flush();
}
await Promise.all(jobs);
await Promise.all(operations.map((operation) => operation.finalize()));
expect(peak).toBe(2);
});
it("rotates fairly between operation queues", async () => {
const coordinator = new ExtractionCoordinator(1);
const first = await coordinator.beginOperation({ context: context("first", "package-a", "run") });
const second = await coordinator.beginOperation({ context: context("second", "package-b", "run") });
const gate = deferred<void>();
const order: string[] = [];
const jobs = [
coordinator.scheduleArchive(first, "a1", async () => {
order.push("a1");
await gate.promise;
}),
coordinator.scheduleArchive(first, "a2", async () => { order.push("a2"); }),
coordinator.scheduleArchive(first, "a3", async () => { order.push("a3"); }),
coordinator.scheduleArchive(second, "b1", async () => { order.push("b1"); })
];
await flush();
expect(order).toEqual(["a1"]);
gate.resolve();
await Promise.all(jobs);
expect(order).toEqual(["a1", "b1", "a2", "a3"]);
await Promise.all([first.finalize(), second.finalize()]);
});
it("shrinks without revoking active permits and grows by filling the new capacity", async () => {
const coordinator = new ExtractionCoordinator(3);
const operation = await coordinator.beginOperation({ context: context("resize", "package-a", "run") });
const gates = Array.from({ length: 5 }, () => deferred<void>());
let active = 0;
const starts: number[] = [];
const jobs = gates.map((gate, index) => coordinator.scheduleArchive(operation, `archive-${index}`, async () => {
active += 1;
starts.push(index);
await gate.promise;
active -= 1;
}));
await flush();
expect(active).toBe(3);
coordinator.resize(1);
gates[0].resolve();
gates[1].resolve();
await flush();
expect(active).toBe(1);
expect(starts).toEqual([0, 1, 2]);
coordinator.resize(3);
await flush();
expect(active).toBe(3);
expect(starts).toEqual([0, 1, 2, 3, 4]);
for (const gate of gates) {
gate.resolve();
}
await Promise.all(jobs);
await operation.finalize();
});
it("cancels only jobs owned by the selected run", async () => {
const coordinator = new ExtractionCoordinator(2);
const cancelled = await coordinator.beginOperation({ context: context("cancelled", "package-a", "run-a") });
const retained = await coordinator.beginOperation({ context: context("retained", "package-b", "run-b") });
const cancelledClose = deferred<void>();
const retainedClose = deferred<void>();
let cancelledSignal: AbortSignal | null = null;
let retainedSignal: AbortSignal | null = null;
const cancelledActive = coordinator.scheduleArchive(cancelled, "a1", async (signal) => {
cancelledSignal = signal;
await cancelledClose.promise;
});
const retainedActive = coordinator.scheduleArchive(retained, "b1", async (signal) => {
retainedSignal = signal;
await retainedClose.promise;
});
const cancelledQueued = coordinator.scheduleArchive(cancelled, "a2", async () => undefined);
await flush();
const cancellation = coordinator.cancelRun("run-a", "stop");
await expect(cancelledQueued).rejects.toBeInstanceOf(ExtractionCancelledError);
expect((cancelledSignal as AbortSignal | null)?.aborted).toBe(true);
expect((retainedSignal as AbortSignal | null)?.aborted).toBe(false);
cancelledClose.resolve();
await expect(cancelledActive).resolves.toBeUndefined();
await cancellation;
retainedClose.resolve();
await retainedActive;
await Promise.all([cancelled.finalize(), retained.finalize()]);
});
it("cancels only jobs owned by the selected package and leaves no ghost waiter", async () => {
const coordinator = new ExtractionCoordinator(1);
const selected = await coordinator.beginOperation({ context: context("selected", "package-a", "run") });
const retained = await coordinator.beginOperation({ context: context("retained", "package-b", "run") });
const activeClose = deferred<void>();
const active = coordinator.scheduleArchive(selected, "a1", async () => activeClose.promise);
const ghost = coordinator.scheduleArchive(selected, "a2", async () => undefined);
const foreign = coordinator.scheduleArchive(retained, "b1", async () => "foreign");
await flush();
const cancellation = coordinator.cancelPackage("package-a", "cancel");
await expect(ghost).rejects.toBeInstanceOf(ExtractionCancelledError);
activeClose.resolve();
await active;
await cancellation;
await expect(foreign).resolves.toBe("foreign");
await Promise.all([selected.finalize(), retained.finalize()]);
});
it("releases an archive permit only once when completion races cancellation", async () => {
const coordinator = new ExtractionCoordinator(1);
const first = await coordinator.beginOperation({ context: context("first", "package-a", "run") });
const second = await coordinator.beginOperation({ context: context("second", "package-b", "run") });
const close = deferred<void>();
let secondStarts = 0;
const firstJob = coordinator.scheduleArchive(first, "a1", async () => close.promise);
const secondJob = coordinator.scheduleArchive(second, "b1", async () => {
secondStarts += 1;
});
await flush();
const cancelled = coordinator.cancelPackage("package-a", "cancel");
close.resolve();
await Promise.all([firstJob, cancelled, secondJob]);
expect(secondStarts).toBe(1);
await Promise.all([first.finalize(), second.finalize()]);
});
it("renews its drain barrier when one operation schedules another archive batch", async () => {
const coordinator = new ExtractionCoordinator(1);
const operation = await coordinator.beginOperation({ context: context("batches", "package-a", "run") });
await coordinator.scheduleArchive(operation, "first", async () => undefined);
await flush();
const secondClose = deferred<void>();
const second = coordinator.scheduleArchive(operation, "second", async () => secondClose.promise);
let finalized = false;
const finalization = operation.finalize().then(() => {
finalized = true;
});
await new Promise<void>((resolve) => setTimeout(resolve, 0));
expect(finalized).toBe(false);
secondClose.resolve();
await Promise.all([second, finalization]);
expect(finalized).toBe(true);
});
it.each(["success", "error", "timeout", "abort"] as const)("holds and releases the operation lease once on %s", async (terminal) => {
const coordinator = new ExtractionCoordinator(1);
const heldLease = lease();
const operation = await coordinator.beginOperation({
context: context(`lease-${terminal}`, "package-a", "run"),
targetPath: "C:\\target",
members: [{ path: "C:\\archives\\one.rar", size: 100 }],
acquireLease: async () => heldLease
});
const close = deferred<void>();
const job = coordinator.scheduleArchive(operation, "archive", async (signal) => {
if (terminal === "abort") {
await new Promise<void>((resolve) => signal.addEventListener("abort", () => resolve(), { once: true }));
}
await close.promise;
if (terminal === "error") {
throw new Error("extract failed");
}
if (terminal === "timeout") {
throw new Error("extract timeout");
}
});
await flush();
const finalized = operation.finalize();
if (terminal === "abort") {
void coordinator.cancelPackage("package-a", "abort");
}
expect(heldLease.release).not.toHaveBeenCalled();
close.resolve();
await job.catch(() => undefined);
await finalized;
expect(heldLease.release).toHaveBeenCalledTimes(1);
await operation.finalize();
expect(heldLease.release).toHaveBeenCalledTimes(1);
});
it("deduplicates multipart members before calculating the disk reservation", async () => {
const coordinator = new ExtractionCoordinator(1);
const heldLease = lease();
const requests: Array<{ requiredBytes: number | null; memberPaths: readonly string[] }> = [];
const operation = await coordinator.beginOperation({
context: context("multipart", "package-a", "run"),
targetPath: "C:\\target",
members: [
{ path: "C:\\archives\\show.part1.rar", size: 100 },
{ path: "c:\\ARCHIVES\\show.part1.rar", size: 100 },
{ path: "C:\\archives\\show.part2.rar", size: 200 }
],
acquireLease: async (request) => {
requests.push({ requiredBytes: request.requiredBytes, memberPaths: request.memberPaths });
return heldLease;
}
});
expect(requests).toEqual([{
requiredBytes: 300,
memberPaths: ["C:\\archives\\show.part1.rar", "C:\\archives\\show.part2.rar"]
}]);
await operation.finalize();
});
it("shuts down in queue-close, waiter-cancel, active-abort, child-drain, finalization and lease-release order", async () => {
const coordinator = new ExtractionCoordinator(1);
const events: string[] = [];
const heldLease = lease(events);
const operation = await coordinator.beginOperation({
context: context("shutdown", "package-a", "run"),
targetPath: "C:\\target",
members: [{ path: "C:\\archives\\one.rar", size: 100 }],
acquireLease: async () => heldLease
});
const childClose = deferred<void>();
const active = coordinator.scheduleArchive(operation, "active", async (signal) => {
signal.addEventListener("abort", () => events.push("active-abort"), { once: true });
await childClose.promise;
events.push("child-close");
});
const waiter = coordinator.scheduleArchive(operation, "waiter", async () => undefined).catch((error) => {
events.push("waiter-cancel");
throw error;
});
const finalized = operation.finalize(async () => {
events.push("scope-finalize");
});
await flush();
const shutdown = coordinator.shutdownAndDrain(Date.now() + 1000);
await expect(waiter).rejects.toBeInstanceOf(ExtractionCancelledError);
expect(events).toEqual(["waiter-cancel", "active-abort"]);
await expect(coordinator.beginOperation({ context: context("late", "package-b", "run") })).rejects.toBeInstanceOf(ExtractionCancelledError);
expect(heldLease.release).not.toHaveBeenCalled();
childClose.resolve();
await Promise.all([active, finalized, shutdown]);
expect(events).toEqual(["waiter-cancel", "active-abort", "child-close", "scope-finalize", "lease-release"]);
});
});