chore: stub cache server in vitest

Co-authored-by: me <me@kentcdodds.com>

Author: cursoragent

tests/mocks/cache-server.ts

@@ -0,0 +1,56 @@
+type CacheEntry<Value> = {
+	metadata: {
+		createdTime: number
+		ttl?: number | null
+		swr?: number | null
+	}
+	value: Value
+}
+
+const lruStore = new Map<string, CacheEntry<unknown>>()
+const sqliteStore = new Map<string, CacheEntry<unknown>>()
+
+export const lruCache = {
+	name: 'test-lru-cache',
+	set: (key: string, value: CacheEntry<unknown>) => {
+		lruStore.set(key, value)
+		return value
+	},
+	get: (key: string) => lruStore.get(key),
+	delete: (key: string) => lruStore.delete(key),
+}
+
+export const cache = {
+	name: 'test-sqlite-cache',
+	async get(key: string) {
+		return sqliteStore.get(key) ?? null
+	},
+	async set(key: string, entry: CacheEntry<unknown>) {
+		sqliteStore.set(key, entry)
+		return entry
+	},
+	async delete(key: string) {
+		sqliteStore.delete(key)
+	},
+}
+
+export async function getAllCacheKeys(limit: number) {
+	const sqlite = [...sqliteStore.keys()].slice(0, limit)
+	const lru = [...lruStore.keys()].slice(0, limit)
+	return { sqlite, lru }
+}
+
+export async function searchCacheKeys(search: string, limit: number) {
+	const matches = (value: string) => value.includes(search)
+	const sqlite = [...sqliteStore.keys()].filter(matches).slice(0, limit)
+	const lru = [...lruStore.keys()].filter(matches).slice(0, limit)
+	return { sqlite, lru }
+}
+
+export async function cachified<Value>(
+	options: {
+		getFreshValue: () => Promise<Value> | Value
+	},
+): Promise<Value> {
+	return options.getFreshValue()
+}

vite.config.ts

@@ -1,3 +1,4 @@
+import path from 'node:path'
 import { reactRouter } from '@react-router/dev/vite'
 import {
 	type SentryReactRouterBuildOptions,
@@ -37,6 +38,16 @@ export default defineConfig((config) => ({
 			ignored: ['**/playwright-report/**'],
 		},
 	},
+	resolve: {
+		alias:
+			MODE === 'test'
+				? {
+						'#app/utils/cache.server.ts': path.resolve(
+							'tests/mocks/cache-server.ts',
+						),
+					}
+				: {},
+	},
 	sentryConfig,
 	plugins: [
 		envOnlyMacros(),