test(voice): fix tests

packages/voice/__tests__/SSRCMap.test.ts

@@ -0,0 +1,60 @@
+/* eslint-disable @typescript-eslint/no-unsafe-assignment */
+import EventEmitter, { once } from 'node:events';
+import { SSRCMap, VoiceUserData } from '../src/receive/SSRCMap';
+
+function onceOrThrow<T extends EventEmitter>(target: T, event: string, after: number) {
+	return new Promise((resolve, reject) => {
+		target.on(event, resolve);
+		setTimeout(() => reject(new Error('Time up')), after);
+	});
+}
+
+describe('SSRCMap', () => {
+	test('update persists data and emits correctly', async () => {
+		const fixture1: VoiceUserData = {
+			audioSSRC: 1,
+			userId: '123',
+		};
+
+		const fixture2: VoiceUserData = {
+			...fixture1,
+			videoSSRC: 2,
+		};
+
+		const map = new SSRCMap();
+		process.nextTick(() => map.update(fixture1));
+		let [oldData, newData] = await once(map, 'update');
+		expect(oldData).toBeUndefined();
+		expect(newData).toMatchObject(fixture1);
+		expect(map.get(fixture1.audioSSRC)).toMatchObject(fixture1);
+
+		process.nextTick(() => map.update(fixture2));
+		[oldData, newData] = await once(map, 'update');
+		expect(oldData).toMatchObject(fixture1);
+		expect(newData).toMatchObject(fixture2);
+		expect(map.get(fixture1.userId)).toMatchObject(fixture2);
+	});
+
+	test('delete removes data and emits correctly', async () => {
+		const fixture1: VoiceUserData = {
+			audioSSRC: 1,
+			userId: '123',
+		};
+		const map = new SSRCMap();
+
+		map.delete(fixture1.audioSSRC);
+		await expect(onceOrThrow(map, 'delete', 5)).rejects.toThrow();
+
+		map.update(fixture1);
+		process.nextTick(() => map.delete(fixture1.audioSSRC));
+		await expect(once(map, 'delete')).resolves.toMatchObject([fixture1]);
+
+		map.delete(fixture1.audioSSRC);
+		await expect(onceOrThrow(map, 'delete', 5)).rejects.toThrow();
+
+		map.update(fixture1);
+		process.nextTick(() => map.delete(fixture1.userId));
+		await expect(once(map, 'delete')).resolves.toMatchObject([fixture1]);
+		expect(map.get(fixture1.audioSSRC)).toBeUndefined();
+	});
+});