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92 lines
2.9 KiB
TypeScript
92 lines
2.9 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import type { Listener, ListenerProps } from '@/core/InternalEventService.js';
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import type Redis from 'ioredis';
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import type { GlobalEventService, InternalEventTypes } from '@/core/GlobalEventService.js';
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import { InternalEventService } from '@/core/InternalEventService.js';
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import { bindThis } from '@/decorators.js';
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type FakeCall<K extends keyof InternalEventService> = [K, Parameters<InternalEventService[K]>];
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type FakeListener<K extends keyof InternalEventTypes> = [K, Listener<K>, ListenerProps];
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/**
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* Minimal implementation of InternalEventService meant for use in unit tests.
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* There is no redis connection, and metadata is tracked in the public _calls and _listeners arrays.
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* The on/off/emit methods are fully functional and can be called in tests to invoke any registered listeners.
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*/
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export class FakeInternalEventService extends InternalEventService {
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/**
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* List of calls to public methods, in chronological order.
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*/
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public _calls: FakeCall<keyof InternalEventService>[] = [];
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/**
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* List of currently registered listeners.
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*/
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public _listeners: FakeListener<keyof InternalEventTypes>[] = [];
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/**
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* Resets the mock.
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* Clears all listeners and tracked calls.
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*/
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public _reset() {
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this._calls = [];
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this._listeners = [];
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}
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/**
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* Simulates a remote event sent from another process in the cluster via redis.
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*/
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@bindThis
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public async _emitRedis<K extends keyof InternalEventTypes>(type: K, value: InternalEventTypes[K]): Promise<void> {
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await this.emit(type, value, false);
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}
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constructor() {
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super(
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{ on: () => {} } as unknown as Redis.Redis,
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{} as unknown as GlobalEventService,
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);
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}
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@bindThis
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public on<K extends keyof InternalEventTypes>(type: K, listener: Listener<K>, props?: ListenerProps): void {
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if (!this._listeners.some(l => l[0] === type && l[1] === listener)) {
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this._listeners.push([type, listener as Listener<keyof InternalEventTypes>, props ?? {}]);
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}
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this._calls.push(['on', [type, listener as Listener<keyof InternalEventTypes>, props]]);
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}
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@bindThis
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public off<K extends keyof InternalEventTypes>(type: K, listener: Listener<K>): void {
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this._listeners = this._listeners.filter(l => l[0] !== type || l[1] !== listener);
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this._calls.push(['off', [type, listener as Listener<keyof InternalEventTypes>]]);
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}
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@bindThis
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public async emit<K extends keyof InternalEventTypes>(type: K, value: InternalEventTypes[K], isLocal = true): Promise<void> {
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for (const listener of this._listeners) {
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if (listener[0] === type) {
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if (!isLocal || !listener[2].ignoreLocal) {
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await listener[1](value, type);
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}
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}
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}
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this._calls.push(['emit', [type, value]]);
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}
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@bindThis
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public dispose(): void {
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this._listeners = [];
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this._calls.push(['dispose', []]);
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}
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@bindThis
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public onApplicationShutdown(): void {
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this._calls.push(['onApplicationShutdown', []]);
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}
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}
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