Function makePushSubscriptionChangeEvent

site/src/serviceWorker.test.ts:336–358

(
	oldSubscription: {
		endpoint: string;
		options?: { applicationServerKey?: ArrayBuffer | Uint8Array | string };
	} | null,
	newSubscription: {
		endpoint: string;
		options?: { applicationServerKey?: ArrayBuffer | Uint8Array | string };
		toJSON: () => unknown;
	} | null,
)

// Helper to build a minimal PushSubscriptionChangeEvent-like object.
// Mirrors the spec shape consumed by the service worker handler.
function makePushSubscriptionChangeEvent(
	oldSubscription: {
		endpoint: string;
		options?: { applicationServerKey?: ArrayBuffer | Uint8Array | string };
	} | null,
	newSubscription: {
		endpoint: string;
		options?: { applicationServerKey?: ArrayBuffer | Uint8Array | string };
		toJSON: () => unknown;
	} | null,
) {
	let waitUntilPromise: Promise<unknown> = Promise.resolve();
	return {
		oldSubscription,
		newSubscription,
		waitUntil: (p: Promise<unknown>) => {
			waitUntilPromise = p;
		},
		get _waitUntilPromise() {
			return waitUntilPromise;
		},
	};
}

describe("serviceWorker pushsubscriptionchange handler", () => {
	const originalFetch = globalThis.fetch;