Function createMockSocket

site/src/utils/reconnectingWebSocket.test.ts:11–31

* Minimal mock that satisfies the Closable interface used by the * reconnection utility. Each instance records every `addEventListener` * call and exposes helpers to fire those events.

()

 * call and exposes helpers to fire those events.
 */
function createMockSocket() {
	const listeners: Record<string, Array<(...args: unknown[]) => void>> = {};
	const socket = {
		addEventListener: vi.fn(
			(event: string, handler: (...args: unknown[]) => void) => {
				if (!listeners[event]) {
					listeners[event] = [];
				}
				listeners[event].push(handler);
			},
		),
		close: vi.fn(),
		/** Fire all handlers registered for the given event type. */
		emit(event: string) {
			for (const handler of listeners[event] ?? []) {
				handler();
			}
		},
	};
	return socket;
}

const expectReconnectSchedule = (
	event: { reconnect: ReconnectSchedule; now: number },