test(cacheable-request): replace sqlite3 test dependency with mock store

.gitignore

@@ -20,7 +20,6 @@ yarn.lock
 # Dist
 dist
 packages/website/site/docs/*.md
-packages/cacheable-request/test/testdb.sqlite
 packages/flat-cache/.cache
 packages/file-entry-cache/.cache
 packages/file-entry-cache/test/test-logger-file.txt

packages/cacheable-request/package.json

@@ -21,7 +21,7 @@
 		"test:ci": "biome check --error-on-warnings && vitest run --coverage",
 		"prepublishOnly": "pnpm build",
 		"build": "rimraf ./dist && tsc --project tsconfig.build.json",
-		"clean": "rimraf node_modules ./coverage ./test/testdb.sqlite ./dist"
+		"clean": "rimraf node_modules ./coverage ./dist"
 	},
 	"files": [
 		"dist",
@@ -52,14 +52,12 @@
 		"responselike": "^4.0.2"
 	},
 	"devDependencies": {
-		"@keyv/sqlite": "^4.0.8",
 		"@types/express": "^5.0.6",
 		"@types/responselike": "^1.0.3",
 		"body-parser": "^2.2.2",
 		"delay": "^7.0.0",
 		"express": "^5.2.1",
 		"pify": "^6.1.0",
-		"sqlite3": "^6.0.1",
 		"tsup": "^8.5.1",
 		"typescript": "^5.9.3"
 	}

packages/cacheable-request/test/cacheable-request-instance.test.ts

@@ -2,7 +2,6 @@
 import EventEmitter from "node:events";
 import { request } from "node:http";
 import stream from "node:stream";
-import { KeyvSqlite } from "@keyv/sqlite";
 import getStream from "get-stream";
 import { Keyv } from "keyv";
 import { afterAll, beforeAll, expect, test } from "vitest";
@@ -24,6 +23,21 @@ beforeAll(async () => {
 afterAll(async () => {
 	await s.close();
 });
+// A Keyv-compatible store that cannot open its backing database: every
+// operation rejects with a SQLITE_CANTOPEN-style error, mirroring an adapter
+// such as @keyv/sqlite pointed at an unwritable path. This exercises the
+// cache-connection error and automaticFailover code paths without depending
+// on a native database driver.
+const createUnopenableStore = () => {
+	const fail = async () => {
+		const error = Object.assign(
+			new Error("SQLITE_CANTOPEN: unable to open database file"),
+			{ code: "SQLITE_CANTOPEN" },
+		);
+		throw error;
+	};
+	return { get: fail, set: fail, delete: fail, clear: fail };
+};
 test("cacheableRequest is a class", () => {
 	const cacheableRequest = new CacheableRequest(request);
 	expect(typeof cacheableRequest).toBe("object");
@@ -121,7 +135,7 @@ test("cacheableRequest emits response event for cached responses", () => {
 test("cacheableRequest emits CacheError if cache adapter connection errors", () => {
 	const cacheableRequest = new CacheableRequest(
 		request,
-		new KeyvSqlite("sqlite://non/existent/database.sqlite"),
+		createUnopenableStore(),
 	).request();
 	cacheableRequest(parseWithWhatwg(s.url))
 		.on("error", (error: any) => {
@@ -298,7 +312,7 @@ test("cacheableRequest does not cache response if request is aborted after recei
 test("cacheableRequest makes request even if initial DB connection fails (when opts.automaticFailover is enabled)", async () => {
 	const cacheableRequest = new CacheableRequest(
 		request,
-		new KeyvSqlite("sqlite://non/existent/database.sqlite"),
+		createUnopenableStore(),
 	).request();
 	const options: any = parseWithWhatwg(s.url);
 	options.automaticFailover = true;