From 2e486f02ffb83192fd46fd231fb3604e1b982416 Mon Sep 17 00:00:00 2001
From: Hazelnoot <acomputerdog@gmail.com>
Date: Fri, 6 Jun 2025 12:17:04 -0400
Subject: implement no-op caches for testing

---
 packages/backend/test/misc/noOpCaches.ts | 196 +++++++++++++++++++++++++++++++
 1 file changed, 196 insertions(+)
 create mode 100644 packages/backend/test/misc/noOpCaches.ts

(limited to 'packages/backend/test')

diff --git a/packages/backend/test/misc/noOpCaches.ts b/packages/backend/test/misc/noOpCaches.ts
new file mode 100644
index 0000000000..373c7bddcc
--- /dev/null
+++ b/packages/backend/test/misc/noOpCaches.ts
@@ -0,0 +1,196 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import * as Redis from 'ioredis';
+import { Inject } from '@nestjs/common';
+import { FakeInternalEventService } from './FakeInternalEventService.js';
+import type { BlockingsRepository, FollowingsRepository, MiFollowing, MiUser, MiUserProfile, MutingsRepository, RenoteMutingsRepository, UserProfilesRepository, UsersRepository } from '@/models/_.js';
+import type { MiLocalUser } from '@/models/User.js';
+import { MemoryKVCache, MemorySingleCache, QuantumKVCache, QuantumKVOpts, RedisKVCache, RedisSingleCache } from '@/misc/cache.js';
+import { CacheService, CachedTranslationEntity, FollowStats } from '@/core/CacheService.js';
+import { DI } from '@/di-symbols.js';
+import { UserEntityService } from '@/core/entities/UserEntityService.js';
+
+export function noOpRedis() {
+	return {
+		set: () => Promise.resolve(),
+		get: () => Promise.resolve(null),
+		del: () => Promise.resolve(),
+		on: () => {},
+		off: () => {},
+	} as unknown as Redis.Redis;
+}
+
+export class NoOpCacheService extends CacheService {
+	public readonly fakeRedis: {
+		[K in keyof Redis.Redis]: Redis.Redis[K];
+	};
+	public readonly fakeInternalEventService: FakeInternalEventService;
+
+	constructor(
+		@Inject(DI.usersRepository)
+		usersRepository: UsersRepository,
+
+		@Inject(DI.userProfilesRepository)
+		userProfilesRepository: UserProfilesRepository,
+
+		@Inject(DI.mutingsRepository)
+		mutingsRepository: MutingsRepository,
+
+		@Inject(DI.blockingsRepository)
+		blockingsRepository: BlockingsRepository,
+
+		@Inject(DI.renoteMutingsRepository)
+		renoteMutingsRepository: RenoteMutingsRepository,
+
+		@Inject(DI.followingsRepository)
+		followingsRepository: FollowingsRepository,
+
+		@Inject(UserEntityService)
+		userEntityService: UserEntityService,
+	) {
+		const fakeRedis = noOpRedis();
+		const fakeInternalEventService = new FakeInternalEventService();
+
+		super(
+			fakeRedis,
+			fakeRedis,
+			usersRepository,
+			userProfilesRepository,
+			mutingsRepository,
+			blockingsRepository,
+			renoteMutingsRepository,
+			followingsRepository,
+			userEntityService,
+			fakeInternalEventService,
+		);
+
+		this.fakeRedis = fakeRedis;
+		this.fakeInternalEventService = fakeInternalEventService;
+
+		// Override caches
+		this.userByIdCache = new NoOpMemoryKVCache<MiUser>();
+		this.localUserByNativeTokenCache = new NoOpMemoryKVCache<MiLocalUser | null>();
+		this.localUserByIdCache = new NoOpMemoryKVCache<MiLocalUser>();
+		this.uriPersonCache = new NoOpMemoryKVCache<MiUser | null>();
+		this.userProfileCache = new NoOpQuantumKVCache<MiUserProfile>({
+			internalEventService: fakeInternalEventService,
+			fetcher: this.userProfileCache.fetcher,
+			onSet: this.userProfileCache.onSet,
+			onDelete: this.userProfileCache.onDelete,
+		});
+		this.userMutingsCache = new NoOpQuantumKVCache<Set<string>>({
+			internalEventService: fakeInternalEventService,
+			fetcher: this.userMutingsCache.fetcher,
+			onSet: this.userMutingsCache.onSet,
+			onDelete: this.userMutingsCache.onDelete,
+		});
+		this.userBlockingCache = new NoOpQuantumKVCache<Set<string>>({
+			internalEventService: fakeInternalEventService,
+			fetcher: this.userBlockingCache.fetcher,
+			onSet: this.userBlockingCache.onSet,
+			onDelete: this.userBlockingCache.onDelete,
+		});
+		this.userBlockedCache = new NoOpQuantumKVCache<Set<string>>({
+			internalEventService: fakeInternalEventService,
+			fetcher: this.userBlockedCache.fetcher,
+			onSet: this.userBlockedCache.onSet,
+			onDelete: this.userBlockedCache.onDelete,
+		});
+		this.renoteMutingsCache = new NoOpQuantumKVCache<Set<string>>({
+			internalEventService: fakeInternalEventService,
+			fetcher: this.renoteMutingsCache.fetcher,
+			onSet: this.renoteMutingsCache.onSet,
+			onDelete: this.renoteMutingsCache.onDelete,
+		});
+		this.userFollowingsCache = new NoOpQuantumKVCache<Record<string, Pick<MiFollowing, 'withReplies'> | undefined>>({
+			internalEventService: fakeInternalEventService,
+			fetcher: this.userFollowingsCache.fetcher,
+			onSet: this.userFollowingsCache.onSet,
+			onDelete: this.userFollowingsCache.onDelete,
+		});
+		this.userFollowStatsCache = new NoOpMemoryKVCache<FollowStats>();
+		this.translationsCache = new NoOpRedisKVCache<CachedTranslationEntity>({
+			redis: fakeRedis,
+			fetcher: this.translationsCache.fetcher,
+			toRedisConverter: this.translationsCache.toRedisConverter,
+			fromRedisConverter: this.translationsCache.fromRedisConverter,
+		});
+	}
+}
+
+export class NoOpMemoryKVCache<T> extends MemoryKVCache<T> {
+	constructor() {
+		super(-1);
+	}
+}
+
+export class NoOpMemorySingleCache<T> extends MemorySingleCache<T> {
+	constructor() {
+		super(-1);
+	}
+}
+
+export class NoOpRedisKVCache<T> extends RedisKVCache<T> {
+	constructor(opts?: {
+		redis?: Redis.Redis;
+		fetcher?: RedisKVCache<T>['fetcher'];
+		toRedisConverter?: RedisKVCache<T>['toRedisConverter'];
+		fromRedisConverter?: RedisKVCache<T>['fromRedisConverter'];
+	}) {
+		super(
+			opts?.redis ?? noOpRedis(),
+			'no-op',
+			{
+				lifetime: -1,
+				memoryCacheLifetime: -1,
+				fetcher: opts?.fetcher,
+				toRedisConverter: opts?.toRedisConverter,
+				fromRedisConverter: opts?.fromRedisConverter,
+			},
+		);
+	}
+}
+
+export class NoOpRedisSingleCache<T> extends RedisSingleCache<T> {
+	constructor(opts?: {
+		fakeRedis?: Redis.Redis;
+		fetcher?: RedisSingleCache<T>['fetcher'];
+		toRedisConverter?: RedisSingleCache<T>['toRedisConverter'];
+		fromRedisConverter?: RedisSingleCache<T>['fromRedisConverter'];
+	}) {
+		super(
+			opts?.fakeRedis ?? noOpRedis(),
+			'no-op',
+			{
+				lifetime: -1,
+				memoryCacheLifetime: -1,
+				fetcher: opts?.fetcher,
+				toRedisConverter: opts?.toRedisConverter,
+				fromRedisConverter: opts?.fromRedisConverter,
+			},
+		);
+	}
+}
+
+export class NoOpQuantumKVCache<T> extends QuantumKVCache<T> {
+	constructor(opts: {
+		internalEventService?: FakeInternalEventService,
+		fetcher: QuantumKVOpts<T>['fetcher'],
+		onSet?: QuantumKVOpts<T>['onSet'],
+		onDelete?: QuantumKVOpts<T>['onDelete'],
+	}) {
+		super(
+			opts.internalEventService ?? new FakeInternalEventService(),
+			'no-op',
+			{
+				lifetime: -1,
+				fetcher: opts.fetcher,
+				onSet: opts.onSet,
+				onDelete: opts.onDelete,
+			},
+		);
+	}
+}
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