enhance(backend): テストの高速化 (#12939)

* enhance(backend): テストの高速化

* add ls

* 自動的にマージされるようなので不要

* 起動方法を揃える

* fix test

34 files changed, 150 insertions, 254 deletions

diff --git a/packages/backend/test/e2e/2fa.ts b/packages/backend/test/e2e/2fa.ts
index dfed8b2fce..165a1055c9 100644
--- a/packages/backend/test/e2e/2fa.ts
+++ b/packages/backend/test/e2e/2fa.ts
@@ -10,7 +10,7 @@ import * as crypto from 'node:crypto';
 import cbor from 'cbor';
 import * as OTPAuth from 'otpauth';
 import { loadConfig } from '@/config.js';
-import { api, signup, startServer } from '../utils.js';
+import { api, signup } from '../utils.js';
 import type {
 	AuthenticationResponseJSON,
 	AuthenticatorAssertionResponseJSON,
@@ -19,11 +19,9 @@ import type {
 	PublicKeyCredentialRequestOptionsJSON,
 	RegistrationResponseJSON,
 } from '@simplewebauthn/typescript-types';
-import type { INestApplicationContext } from '@nestjs/common';
 import type * as misskey from 'misskey-js';
 
 describe('2要素認証', () => {
-	let app: INestApplicationContext;
 	let alice: misskey.entities.SignupResponse;
 
 	const config = loadConfig();
@@ -185,14 +183,9 @@ describe('2要素認証', () => {
 	};
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username, password });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('が設定でき、OTPでログインできる。', async () => {
 		const registerResponse = await api('/i/2fa/register', {
 			password,
diff --git a/packages/backend/test/e2e/antennas.ts b/packages/backend/test/e2e/antennas.ts
index 9bac5122d4..e63722b246 100644
--- a/packages/backend/test/e2e/antennas.ts
+++ b/packages/backend/test/e2e/antennas.ts
@@ -6,24 +6,20 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { inspect } from 'node:util';
 import { DEFAULT_POLICIES } from '@/core/RoleService.js';
 import type { Packed } from '@/misc/json-schema.js';
 import {
-	signup,
+	api,
+	failedApiCall,
 	post,
-	userList,
-	page,
 	role,
-	startServer,
-	api,
+	signup,
 	successfulApiCall,
-	failedApiCall,
-	uploadFile,
 	testPaginationConsistency,
+	uploadFile,
+	userList,
 } from '../utils.js';
 import type * as misskey from 'misskey-js';
-import type { INestApplicationContext } from '@nestjs/common';
 
 const compareBy = <T extends { id: string }>(selector: (s: T) => string = (s: T): string => s.id) => (a: T, b: T): number => {
 	return selector(a).localeCompare(selector(b));
@@ -54,8 +50,6 @@ describe('アンテナ', () => {
 		withReplies: false,
 	};
 
-	let app: INestApplicationContext;
-
 	let root: User;
 	let alice: User;
 	let bob: User;
@@ -80,10 +74,6 @@ describe('アンテナ', () => {
 	let userMutedByAlice: User;
 
 	beforeAll(async () => {
-		app = await startServer();
-	}, 1000 * 60 * 2);
-
-	beforeAll(async () => {
 		root = await signup({ username: 'root' });
 		alice = await signup({ username: 'alice' });
 		alicePost = await post(alice, { text: 'test' });
@@ -136,10 +126,6 @@ describe('アンテナ', () => {
 		await api('mute/create', { userId: userMutedByAlice.id }, alice);
 	}, 1000 * 60 * 10);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	beforeEach(async () => {
 		// テスト間で影響し合わないように毎回全部消す。
 		for (const user of [alice, bob]) {
diff --git a/packages/backend/test/e2e/api-visibility.ts b/packages/backend/test/e2e/api-visibility.ts
index afe4f9c05a..89d8b42271 100644
--- a/packages/backend/test/e2e/api-visibility.ts
+++ b/packages/backend/test/e2e/api-visibility.ts
@@ -6,21 +6,10 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { signup, api, post, startServer } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, post, signup } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('API visibility', () => {
-	let app: INestApplicationContext;
-
-	beforeAll(async () => {
-		app = await startServer();
-	}, 1000 * 60 * 2);
-
-	afterAll(async () => {
-		await app.close();
-	});
-
 	describe('Note visibility', () => {
 		//#region vars
 		/** ヒロイン */
diff --git a/packages/backend/test/e2e/api.ts b/packages/backend/test/e2e/api.ts
index ad351eebbb..25d5bdb175 100644
--- a/packages/backend/test/e2e/api.ts
+++ b/packages/backend/test/e2e/api.ts
@@ -7,27 +7,30 @@ process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
 import { IncomingMessage } from 'http';
-import { signup, api, startServer, successfulApiCall, failedApiCall, uploadFile, waitFire, connectStream, relativeFetch, createAppToken } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import {
+	api,
+	connectStream,
+	createAppToken,
+	failedApiCall,
+	relativeFetch,
+	signup,
+	successfulApiCall,
+	uploadFile,
+	waitFire,
+} from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('API', () => {
-	let app: INestApplicationContext;
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 	let carol: misskey.entities.SignupResponse;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 		carol = await signup({ username: 'carol' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	describe('General validation', () => {
 		test('wrong type', async () => {
 			const res = await api('/test', {
diff --git a/packages/backend/test/e2e/block.ts b/packages/backend/test/e2e/block.ts
index 25ff9f11ac..1dfc87c64f 100644
--- a/packages/backend/test/e2e/block.ts
+++ b/packages/backend/test/e2e/block.ts
@@ -6,29 +6,21 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { signup, api, post, startServer } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, post, signup } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('Block', () => {
-	let app: INestApplicationContext;
-
 	// alice blocks bob
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 	let carol: misskey.entities.SignupResponse;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 		carol = await signup({ username: 'carol' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('Block作成', async () => {
 		const res = await api('/blocking/create', {
 			userId: bob.id,
diff --git a/packages/backend/test/e2e/clips.ts b/packages/backend/test/e2e/clips.ts
index 49092fba63..b679eea8cf 100644
--- a/packages/backend/test/e2e/clips.ts
+++ b/packages/backend/test/e2e/clips.ts
@@ -18,25 +18,13 @@ import { paramDef as UnfavoriteParamDef } from '@/server/api/endpoints/clips/unf
 import { paramDef as AddNoteParamDef } from '@/server/api/endpoints/clips/add-note.js';
 import { paramDef as RemoveNoteParamDef } from '@/server/api/endpoints/clips/remove-note.js';
 import { paramDef as NotesParamDef } from '@/server/api/endpoints/clips/notes.js';
-import {
-	signup,
-	post,
-	startServer,
-	api,
-	successfulApiCall,
-	failedApiCall,
-	ApiRequest,
-	hiddenNote,
-} from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, ApiRequest, failedApiCall, hiddenNote, post, signup, successfulApiCall } from '../utils.js';
 
 describe('クリップ', () => {
 	type User = Packed<'User'>;
 	type Note = Packed<'Note'>;
 	type Clip = Packed<'Clip'>;
 
-	let app: INestApplicationContext;
-
 	let alice: User;
 	let bob: User;
 	let aliceNote: Note;
@@ -145,7 +133,6 @@ describe('クリップ', () => {
 	};
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 
@@ -160,10 +147,6 @@ describe('クリップ', () => {
 		bobSpecifiedNote = await post(bob, { text: 'specified only', visibility: 'specified' }) as any;
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	afterEach(async () => {
 		// テスト間で影響し合わないように毎回全部消す。
 		for (const user of [alice, bob]) {
diff --git a/packages/backend/test/e2e/endpoints.ts b/packages/backend/test/e2e/endpoints.ts
index d75549c816..b12b062a63 100644
--- a/packages/backend/test/e2e/endpoints.ts
+++ b/packages/backend/test/e2e/endpoints.ts
@@ -10,30 +10,22 @@ import * as assert from 'assert';
 // https://github.com/node-fetch/node-fetch/pull/1664
 import { Blob } from 'node-fetch';
 import { MiUser } from '@/models/_.js';
-import { startServer, signup, post, api, uploadFile, simpleGet, initTestDb } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, initTestDb, post, signup, simpleGet, uploadFile } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('Endpoints', () => {
-	let app: INestApplicationContext;
-
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 	let carol: misskey.entities.SignupResponse;
 	let dave: misskey.entities.SignupResponse;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 		carol = await signup({ username: 'carol' });
 		dave = await signup({ username: 'dave' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	describe('signup', () => {
 		test('不正なユーザー名でアカウントが作成できない', async () => {
 			const res = await api('signup', {
diff --git a/packages/backend/test/e2e/exports.ts b/packages/backend/test/e2e/exports.ts
index 9686f2b7fd..f9b59144a3 100644
--- a/packages/backend/test/e2e/exports.ts
+++ b/packages/backend/test/e2e/exports.ts
@@ -6,12 +6,12 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { signup, api, startServer, startJobQueue, port, post } from '../utils.js';
+import { api, port, post, signup, startJobQueue } from '../utils.js';
 import type { INestApplicationContext } from '@nestjs/common';
 import type * as misskey from 'misskey-js';
 
 describe('export-clips', () => {
-	let app: INestApplicationContext;
+	let queue: INestApplicationContext;
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 
@@ -33,14 +33,13 @@ describe('export-clips', () => {
 	}
 
 	beforeAll(async () => {
-		app = await startServer();
-		await startJobQueue();
+		queue = await startJobQueue();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 	}, 1000 * 60 * 2);
 
 	afterAll(async () => {
-		await app.close();
+		await queue.close();
 	});
 
 	beforeEach(async () => {
diff --git a/packages/backend/test/e2e/fetch-resource.ts b/packages/backend/test/e2e/fetch-resource.ts
index 28affe7768..0d23b4fe67 100644
--- a/packages/backend/test/e2e/fetch-resource.ts
+++ b/packages/backend/test/e2e/fetch-resource.ts
@@ -6,9 +6,8 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { startServer, channel, clip, cookie, galleryPost, signup, page, play, post, simpleGet, uploadFile } from '../utils.js';
+import { channel, clip, cookie, galleryPost, page, play, post, signup, simpleGet, uploadFile } from '../utils.js';
 import type { SimpleGetResponse } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
 import type * as misskey from 'misskey-js';
 
 // Request Accept
@@ -23,8 +22,6 @@ const HTML = 'text/html; charset=utf-8';
 const JSON_UTF8 = 'application/json; charset=utf-8';
 
 describe('Webリソース', () => {
-	let app: INestApplicationContext;
-
 	let alice: misskey.entities.SignupResponse;
 	let aliceUploadedFile: any;
 	let alicesPost: any;
@@ -79,7 +76,6 @@ describe('Webリソース', () => {
 	};
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		aliceUploadedFile = await uploadFile(alice);
 		alicesPost = await post(alice, {
@@ -96,10 +92,6 @@ describe('Webリソース', () => {
 		bob = await signup({ username: 'bob' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	describe.each([
 		{ path: '/', type: HTML },
 		{ path: '/docs/ja-JP/about', type: HTML }, // "指定されたURLに該当するページはありませんでした。"
diff --git a/packages/backend/test/e2e/ff-visibility.ts b/packages/backend/test/e2e/ff-visibility.ts
index 4d323e14e7..1fe0478a18 100644
--- a/packages/backend/test/e2e/ff-visibility.ts
+++ b/packages/backend/test/e2e/ff-visibility.ts
@@ -6,26 +6,18 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { signup, api, startServer, simpleGet } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, signup, simpleGet } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('FF visibility', () => {
-	let app: INestApplicationContext;
-
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('followingVisibility, followersVisibility がともに public なユーザーのフォロー/フォロワーを誰でも見れる', async () => {
 		await api('/i/update', {
 			followingVisibility: 'public',
diff --git a/packages/backend/test/e2e/move.ts b/packages/backend/test/e2e/move.ts
index f7da66a27c..3937203569 100644
--- a/packages/backend/test/e2e/move.ts
+++ b/packages/backend/test/e2e/move.ts
@@ -3,19 +3,19 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
+import { INestApplicationContext } from '@nestjs/common';
+
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
 import { loadConfig } from '@/config.js';
 import { MiUser, UsersRepository } from '@/models/_.js';
-import { jobQueue } from '@/boot/common.js';
 import { secureRndstr } from '@/misc/secure-rndstr.js';
-import { uploadFile, signup, startServer, initTestDb, api, sleep, successfulApiCall } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { jobQueue } from '@/boot/common.js';
+import { api, initTestDb, signup, sleep, successfulApiCall, uploadFile } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('Account Move', () => {
-	let app: INestApplicationContext;
 	let jq: INestApplicationContext;
 	let url: URL;
 
@@ -30,8 +30,8 @@ describe('Account Move', () => {
 	let Users: UsersRepository;
 
 	beforeAll(async () => {
-		app = await startServer();
 		jq = await jobQueue();
+
 		const config = loadConfig();
 		url = new URL(config.url);
 		const connection = await initTestDb(false);
@@ -46,7 +46,7 @@ describe('Account Move', () => {
 	}, 1000 * 60 * 2);
 
 	afterAll(async () => {
-		await Promise.all([app.close(), jq.close()]);
+		await jq.close();
 	});
 
 	describe('Create Alias', () => {
diff --git a/packages/backend/test/e2e/mute.ts b/packages/backend/test/e2e/mute.ts
index 3b5542dfe0..5144df5ebe 100644
--- a/packages/backend/test/e2e/mute.ts
+++ b/packages/backend/test/e2e/mute.ts
@@ -6,29 +6,21 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { signup, api, post, react, startServer, waitFire } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, post, react, signup, waitFire } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('Mute', () => {
-	let app: INestApplicationContext;
-
 	// alice mutes carol
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 	let carol: misskey.entities.SignupResponse;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 		carol = await signup({ username: 'carol' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('ミュート作成', async () => {
 		const res = await api('/mute/create', {
 			userId: carol.id,
diff --git a/packages/backend/test/e2e/nodeinfo.ts b/packages/backend/test/e2e/nodeinfo.ts
index 7eed39c5ed..934ef08507 100644
--- a/packages/backend/test/e2e/nodeinfo.ts
+++ b/packages/backend/test/e2e/nodeinfo.ts
@@ -6,20 +6,9 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { relativeFetch, startServer } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { relativeFetch } from '../utils.js';
 
 describe('nodeinfo', () => {
-	let app: INestApplicationContext;
-
-	beforeAll(async () => {
-		app = await startServer();
-	}, 1000 * 60 * 2);
-
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('nodeinfo 2.1', async () => {
 		const res = await relativeFetch('nodeinfo/2.1');
 		assert.ok(res.ok);
diff --git a/packages/backend/test/e2e/note.ts b/packages/backend/test/e2e/note.ts
index 8d33c63485..0f2e08e675 100644
--- a/packages/backend/test/e2e/note.ts
+++ b/packages/backend/test/e2e/note.ts
@@ -8,29 +8,22 @@ process.env.NODE_ENV = 'test';
 import * as assert from 'assert';
 import { MiNote } from '@/models/Note.js';
 import { MAX_NOTE_TEXT_LENGTH } from '@/const.js';
-import { signup, post, uploadUrl, startServer, initTestDb, api, uploadFile } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, initTestDb, post, signup, uploadFile, uploadUrl } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('Note', () => {
-	let app: INestApplicationContext;
 	let Notes: any;
 
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 
 	beforeAll(async () => {
-		app = await startServer();
 		const connection = await initTestDb(true);
 		Notes = connection.getRepository(MiNote);
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('投稿できる', async () => {
 		const post = {
 			text: 'test',
diff --git a/packages/backend/test/e2e/oauth.ts b/packages/backend/test/e2e/oauth.ts
index 3ca1f8b542..df6ff42df9 100644
--- a/packages/backend/test/e2e/oauth.ts
+++ b/packages/backend/test/e2e/oauth.ts
@@ -11,13 +11,18 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { AuthorizationCode, ResourceOwnerPassword, type AuthorizationTokenConfig, ClientCredentials, ModuleOptions } from 'simple-oauth2';
+import {
+	AuthorizationCode,
+	type AuthorizationTokenConfig,
+	ClientCredentials,
+	ModuleOptions,
+	ResourceOwnerPassword,
+} from 'simple-oauth2';
 import pkceChallenge from 'pkce-challenge';
 import { JSDOM } from 'jsdom';
-import Fastify, { type FastifyReply, type FastifyInstance } from 'fastify';
-import { api, port, signup, startServer } from '../utils.js';
+import Fastify, { type FastifyInstance, type FastifyReply } from 'fastify';
+import { api, port, sendEnvUpdateRequest, signup } from '../utils.js';
 import type * as misskey from 'misskey-js';
-import type { INestApplicationContext } from '@nestjs/common';
 
 const host = `http://127.0.0.1:${port}`;
 
@@ -147,7 +152,6 @@ async function assertDirectError(response: Response, status: number, error: stri
 }
 
 describe('OAuth', () => {
-	let app: INestApplicationContext;
 	let fastify: FastifyInstance;
 
 	let alice: misskey.entities.SignupResponse;
@@ -156,7 +160,6 @@ describe('OAuth', () => {
 	let sender: (reply: FastifyReply) => void;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 
@@ -168,7 +171,7 @@ describe('OAuth', () => {
 	}, 1000 * 60 * 2);
 
 	beforeEach(async () => {
-		process.env.MISSKEY_TEST_CHECK_IP_RANGE = '';
+		await sendEnvUpdateRequest({ key: 'MISSKEY_TEST_CHECK_IP_RANGE', value: '' });
 		sender = (reply): void => {
 			reply.send(`
 				<!DOCTYPE html>
@@ -180,7 +183,6 @@ describe('OAuth', () => {
 
 	afterAll(async () => {
 		await fastify.close();
-		await app.close();
 	});
 
 	test('Full flow', async () => {
@@ -881,7 +883,7 @@ describe('OAuth', () => {
 		});
 
 		test('Disallow loopback', async () => {
-			process.env.MISSKEY_TEST_CHECK_IP_RANGE = '1';
+			await sendEnvUpdateRequest({ key: 'MISSKEY_TEST_CHECK_IP_RANGE', value: '1' });
 
 			const client = new AuthorizationCode(clientConfig);
 			const response = await fetch(client.authorizeURL({
diff --git a/packages/backend/test/e2e/renote-mute.ts b/packages/backend/test/e2e/renote-mute.ts
index fededdff32..42cc414c3f 100644
--- a/packages/backend/test/e2e/renote-mute.ts
+++ b/packages/backend/test/e2e/renote-mute.ts
@@ -6,29 +6,21 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { signup, api, post, react, startServer, waitFire, sleep } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, post, signup, sleep, waitFire } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('Renote Mute', () => {
-	let app: INestApplicationContext;
-
 	// alice mutes carol
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 	let carol: misskey.entities.SignupResponse;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 		carol = await signup({ username: 'carol' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('ミュート作成', async () => {
 		const res = await api('/renote-mute/create', {
 			userId: carol.id,
diff --git a/packages/backend/test/e2e/streaming.ts b/packages/backend/test/e2e/streaming.ts
index a447ba94ae..b6f584fa70 100644
--- a/packages/backend/test/e2e/streaming.ts
+++ b/packages/backend/test/e2e/streaming.ts
@@ -8,12 +8,10 @@ process.env.NODE_ENV = 'test';
 import * as assert from 'assert';
 import { WebSocket } from 'ws';
 import { MiFollowing } from '@/models/Following.js';
-import { signup, api, post, startServer, initTestDb, waitFire, createAppToken, port } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, createAppToken, initTestDb, port, post, signup, waitFire } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('Streaming', () => {
-	let app: INestApplicationContext;
 	let Followings: any;
 
 	const follow = async (follower: any, followee: any) => {
@@ -48,7 +46,6 @@ describe('Streaming', () => {
 		let list: any;
 
 		beforeAll(async () => {
-			app = await startServer();
 			const connection = await initTestDb(true);
 			Followings = connection.getRepository(MiFollowing);
 
@@ -95,10 +92,6 @@ describe('Streaming', () => {
 			}, chitose);
 		}, 1000 * 60 * 2);
 
-		afterAll(async () => {
-			await app.close();
-		});
-
 		describe('Events', () => {
 			test('mention event', async () => {
 				const fired = await waitFire(
diff --git a/packages/backend/test/e2e/thread-mute.ts b/packages/backend/test/e2e/thread-mute.ts
index 5c68e2b150..26c30d6c4c 100644
--- a/packages/backend/test/e2e/thread-mute.ts
+++ b/packages/backend/test/e2e/thread-mute.ts
@@ -6,28 +6,20 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { signup, api, post, connectStream, startServer } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, connectStream, post, signup } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('Note thread mute', () => {
-	let app: INestApplicationContext;
-
 	let alice: misskey.entities.SignupResponse;
 	let bob: misskey.entities.SignupResponse;
 	let carol: misskey.entities.SignupResponse;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		bob = await signup({ username: 'bob' });
 		carol = await signup({ username: 'carol' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('notes/mentions にミュートしているスレッドの投稿が含まれない', async () => {
 		const bobNote = await post(bob, { text: '@alice @carol root note' });
 		const aliceReply = await post(alice, { replyId: bobNote.id, text: '@bob @carol child note' });
diff --git a/packages/backend/test/e2e/timelines.ts b/packages/backend/test/e2e/timelines.ts
index cb9558b416..88f89c4a6f 100644
--- a/packages/backend/test/e2e/timelines.ts
+++ b/packages/backend/test/e2e/timelines.ts
@@ -6,12 +6,8 @@
 // How to run:
 // pnpm jest -- e2e/timelines.ts
 
-process.env.NODE_ENV = 'test';
-process.env.FORCE_FOLLOW_REMOTE_USER_FOR_TESTING = 'true';
-
 import * as assert from 'assert';
-import { api, post, randomString, signup, sleep, startServer, uploadUrl } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, post, randomString, sendEnvUpdateRequest, signup, sleep, uploadUrl } from '../utils.js';
 
 function genHost() {
 	return randomString() + '.example.com';
@@ -21,16 +17,6 @@ function waitForPushToTl() {
 	return sleep(500);
 }
 
-let app: INestApplicationContext;
-
-beforeAll(async () => {
-	app = await startServer();
-}, 1000 * 60 * 2);
-
-afterAll(async () => {
-	await app.close();
-});
-
 describe('Timelines', () => {
 	describe('Home TL', () => {
 		test.concurrent('自分の visibility: followers なノートが含まれる', async () => {
@@ -334,8 +320,9 @@ describe('Timelines', () => {
 		test.concurrent('フォローしているリモートユーザーのノートが含まれる', async () => {
 			const [alice, bob] = await Promise.all([signup(), signup({ host: genHost() })]);
 
+			await sendEnvUpdateRequest({ key: 'FORCE_FOLLOW_REMOTE_USER_FOR_TESTING', value: 'true' });
 			await api('/following/create', { userId: bob.id }, alice);
-			await sleep(1000);
+
 			const bobNote = await post(bob, { text: 'hi' });
 
 			await waitForPushToTl();
@@ -348,8 +335,9 @@ describe('Timelines', () => {
 		test.concurrent('フォローしているリモートユーザーの visibility: home なノートが含まれる', async () => {
 			const [alice, bob] = await Promise.all([signup(), signup({ host: genHost() })]);
 
+			await sendEnvUpdateRequest({ key: 'FORCE_FOLLOW_REMOTE_USER_FOR_TESTING', value: 'true' });
 			await api('/following/create', { userId: bob.id }, alice);
-			await sleep(1000);
+
 			const bobNote = await post(bob, { text: 'hi', visibility: 'home' });
 
 			await waitForPushToTl();
@@ -762,8 +750,9 @@ describe('Timelines', () => {
 		test.concurrent('フォローしているリモートユーザーのノートが含まれる', async () => {
 			const [alice, bob] = await Promise.all([signup(), signup({ host: genHost() })]);
 
+			await sendEnvUpdateRequest({ key: 'FORCE_FOLLOW_REMOTE_USER_FOR_TESTING', value: 'true' });
 			await api('/following/create', { userId: bob.id }, alice);
-			await sleep(1000);
+
 			const bobNote = await post(bob, { text: 'hi' });
 
 			await waitForPushToTl();
@@ -776,8 +765,9 @@ describe('Timelines', () => {
 		test.concurrent('フォローしているリモートユーザーの visibility: home なノートが含まれる', async () => {
 			const [alice, bob] = await Promise.all([signup(), signup({ host: genHost() })]);
 
+			await sendEnvUpdateRequest({ key: 'FORCE_FOLLOW_REMOTE_USER_FOR_TESTING', value: 'true' });
 			await api('/following/create', { userId: bob.id }, alice);
-			await sleep(1000);
+
 			const bobNote = await post(bob, { text: 'hi', visibility: 'home' });
 
 			await waitForPushToTl();
diff --git a/packages/backend/test/e2e/user-notes.ts b/packages/backend/test/e2e/user-notes.ts
index 4f2e7c4cf3..07da0db369 100644
--- a/packages/backend/test/e2e/user-notes.ts
+++ b/packages/backend/test/e2e/user-notes.ts
@@ -6,20 +6,16 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { signup, api, post, uploadUrl, startServer } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { api, post, signup, uploadUrl } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('users/notes', () => {
-	let app: INestApplicationContext;
-
 	let alice: misskey.entities.SignupResponse;
 	let jpgNote: any;
 	let pngNote: any;
 	let jpgPngNote: any;
 
 	beforeAll(async () => {
-		app = await startServer();
 		alice = await signup({ username: 'alice' });
 		const jpg = await uploadUrl(alice, 'https://raw.githubusercontent.com/misskey-dev/misskey/develop/packages/backend/test/resources/Lenna.jpg');
 		const png = await uploadUrl(alice, 'https://raw.githubusercontent.com/misskey-dev/misskey/develop/packages/backend/test/resources/Lenna.png');
@@ -34,10 +30,6 @@ describe('users/notes', () => {
 		});
 	}, 1000 * 60 * 2);
 
-	afterAll(async() => {
-		await app.close();
-	});
-
 	test('withFiles', async () => {
 		const res = await api('/users/notes', {
 			userId: alice.id,
diff --git a/packages/backend/test/e2e/users.ts b/packages/backend/test/e2e/users.ts
index 9c4cbac368..bc23c009b2 100644
--- a/packages/backend/test/e2e/users.ts
+++ b/packages/backend/test/e2e/users.ts
@@ -8,20 +8,8 @@ process.env.NODE_ENV = 'test';
 import * as assert from 'assert';
 import { inspect } from 'node:util';
 import { DEFAULT_POLICIES } from '@/core/RoleService.js';
-import type { Packed } from '@/misc/json-schema.js';
-import {
-	signup,
-	post,
-	page,
-	role,
-	startServer,
-	api,
-	successfulApiCall,
-	failedApiCall,
-	uploadFile,
-} from '../utils.js';
+import { api, page, post, role, signup, successfulApiCall, uploadFile } from '../utils.js';
 import type * as misskey from 'misskey-js';
-import type { INestApplicationContext } from '@nestjs/common';
 
 describe('ユーザー', () => {
 	// エンティティとしてのユーザーを主眼においたテストを記述する
@@ -185,8 +173,6 @@ describe('ユーザー', () => {
 		});
 	};
 
-	let app: INestApplicationContext;
-
 	let root: User;
 	let alice: User;
 	let aliceNote: misskey.entities.Note;
@@ -231,10 +217,6 @@ describe('ユーザー', () => {
 	let userFollowRequested: User;
 
 	beforeAll(async () => {
-		app = await startServer();
-	}, 1000 * 60 * 2);
-
-	beforeAll(async () => {
 		root = await signup({ username: 'root' });
 		alice = await signup({ username: 'alice' });
 		aliceNote = await post(alice, { text: 'test' }) as any;
@@ -321,10 +303,6 @@ describe('ユーザー', () => {
 		await api('following/create', { userId: userFollowRequested.id }, userFollowRequesting);
 	}, 1000 * 60 * 10);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	beforeEach(async () => {
 		alice = {
 			...alice,
diff --git a/packages/backend/test/e2e/well-known.ts b/packages/backend/test/e2e/well-known.ts
index 14e32e1627..0429b7c8b2 100644
--- a/packages/backend/test/e2e/well-known.ts
+++ b/packages/backend/test/e2e/well-known.ts
@@ -6,24 +6,16 @@
 process.env.NODE_ENV = 'test';
 
 import * as assert from 'assert';
-import { host, origin, relativeFetch, signup, startServer } from '../utils.js';
-import type { INestApplicationContext } from '@nestjs/common';
+import { host, origin, relativeFetch, signup } from '../utils.js';
 import type * as misskey from 'misskey-js';
 
 describe('.well-known', () => {
-	let app: INestApplicationContext;
 	let alice: misskey.entities.User;
 
 	beforeAll(async () => {
-		app = await startServer();
-
 		alice = await signup({ username: 'alice' });
 	}, 1000 * 60 * 2);
 
-	afterAll(async () => {
-		await app.close();
-	});
-
 	test('nodeinfo', async () => {
 		const res = await relativeFetch('.well-known/nodeinfo');
 		assert.ok(res.ok);
diff --git a/packages/backend/test/jest.setup.ts b/packages/backend/test/jest.setup.ts
new file mode 100644
index 0000000000..cf5b9bf24d
--- /dev/null
+++ b/packages/backend/test/jest.setup.ts
@@ -0,0 +1,8 @@
+import { initTestDb, sendEnvResetRequest } from './utils.js';
+
+beforeAll(async () => {
+	await Promise.all([
+		initTestDb(false),
+		sendEnvResetRequest(),
+	]);
+});
diff --git a/packages/backend/test/misc/mock-resolver.ts b/packages/backend/test/misc/mock-resolver.ts
index 7cba7a2aa8..7ee65d1ab0 100644
--- a/packages/backend/test/misc/mock-resolver.ts
+++ b/packages/backend/test/misc/mock-resolver.ts
@@ -15,7 +15,13 @@ import type { LoggerService } from '@/core/LoggerService.js';
 import type { MetaService } from '@/core/MetaService.js';
 import type { UtilityService } from '@/core/UtilityService.js';
 import { bindThis } from '@/decorators.js';
-import type { NoteReactionsRepository, NotesRepository, PollsRepository, UsersRepository, FollowRequestsRepository } from '@/models/_.js';
+import type {
+	FollowRequestsRepository,
+	NoteReactionsRepository,
+	NotesRepository,
+	PollsRepository,
+	UsersRepository,
+} from '@/models/_.js';
 
 type MockResponse = {
 	type: string;
diff --git a/packages/backend/test/unit/AnnouncementService.ts b/packages/backend/test/unit/AnnouncementService.ts
index f2aa5d35e4..f02c4e6700 100644
--- a/packages/backend/test/unit/AnnouncementService.ts
+++ b/packages/backend/test/unit/AnnouncementService.ts
@@ -10,7 +10,13 @@ import { ModuleMocker } from 'jest-mock';
 import { Test } from '@nestjs/testing';
 import { GlobalModule } from '@/GlobalModule.js';
 import { AnnouncementService } from '@/core/AnnouncementService.js';
-import type { MiAnnouncement, AnnouncementsRepository, AnnouncementReadsRepository, UsersRepository, MiUser } from '@/models/_.js';
+import type {
+	AnnouncementReadsRepository,
+	AnnouncementsRepository,
+	MiAnnouncement,
+	MiUser,
+	UsersRepository,
+} from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
 import { genAidx } from '@/misc/id/aidx.js';
 import { CacheService } from '@/core/CacheService.js';
diff --git a/packages/backend/test/unit/DriveService.ts b/packages/backend/test/unit/DriveService.ts
index 7234da2e36..64397a1a4f 100644
--- a/packages/backend/test/unit/DriveService.ts
+++ b/packages/backend/test/unit/DriveService.ts
@@ -6,7 +6,13 @@
 process.env.NODE_ENV = 'test';
 
 import { Test } from '@nestjs/testing';
-import { DeleteObjectCommandOutput, DeleteObjectCommand, NoSuchKey, InvalidObjectState, S3Client } from '@aws-sdk/client-s3';
+import {
+	DeleteObjectCommand,
+	DeleteObjectCommandOutput,
+	InvalidObjectState,
+	NoSuchKey,
+	S3Client,
+} from '@aws-sdk/client-s3';
 import { mockClient } from 'aws-sdk-client-mock';
 import { GlobalModule } from '@/GlobalModule.js';
 import { DriveService } from '@/core/DriveService.js';
diff --git a/packages/backend/test/unit/FetchInstanceMetadataService.ts b/packages/backend/test/unit/FetchInstanceMetadataService.ts
index 34200899d4..cddc374f9a 100644
--- a/packages/backend/test/unit/FetchInstanceMetadataService.ts
+++ b/packages/backend/test/unit/FetchInstanceMetadataService.ts
@@ -55,7 +55,8 @@ describe('FetchInstanceMetadataService', () => {
 					return { fetch: jest.fn() };
 				} else if (token === DI.redis) {
 					return mockRedis;
-				}})
+				}
+			})
 			.compile();
 
 		app.enableShutdownHooks();
diff --git a/packages/backend/test/unit/FileInfoService.ts b/packages/backend/test/unit/FileInfoService.ts
index de0b31488c..f3717d73cd 100644
--- a/packages/backend/test/unit/FileInfoService.ts
+++ b/packages/backend/test/unit/FileInfoService.ts
@@ -10,7 +10,7 @@ import { fileURLToPath } from 'node:url';
 import { dirname } from 'node:path';
 import { ModuleMocker } from 'jest-mock';
 import { Test } from '@nestjs/testing';
-import { describe, beforeAll, afterAll, test } from '@jest/globals';
+import { afterAll, beforeAll, describe, test } from '@jest/globals';
 import { GlobalModule } from '@/GlobalModule.js';
 import { FileInfoService } from '@/core/FileInfoService.js';
 //import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/test/unit/MetaService.ts b/packages/backend/test/unit/MetaService.ts
index ab30f48283..c4c7f21913 100644
--- a/packages/backend/test/unit/MetaService.ts
+++ b/packages/backend/test/unit/MetaService.ts
@@ -6,15 +6,13 @@
 process.env.NODE_ENV = 'test';
 
 import { jest } from '@jest/globals';
-import { ModuleMocker } from 'jest-mock';
 import { Test } from '@nestjs/testing';
 import { GlobalModule } from '@/GlobalModule.js';
-import type { MetasRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
 import { MetaService } from '@/core/MetaService.js';
 import { CoreModule } from '@/core/CoreModule.js';
-import type { DataSource } from 'typeorm';
 import type { TestingModule } from '@nestjs/testing';
+import type { DataSource } from 'typeorm';
 
 describe('MetaService', () => {
 	let app: TestingModule;
diff --git a/packages/backend/test/unit/RoleService.ts b/packages/backend/test/unit/RoleService.ts
index 9879eb8e3e..46613c29c8 100644
--- a/packages/backend/test/unit/RoleService.ts
+++ b/packages/backend/test/unit/RoleService.ts
@@ -11,7 +11,7 @@ import { Test } from '@nestjs/testing';
 import * as lolex from '@sinonjs/fake-timers';
 import { GlobalModule } from '@/GlobalModule.js';
 import { RoleService } from '@/core/RoleService.js';
-import type { MiRole, RolesRepository, RoleAssignmentsRepository, UsersRepository, MiUser } from '@/models/_.js';
+import type { MiRole, MiUser, RoleAssignmentsRepository, RolesRepository, UsersRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
 import { MetaService } from '@/core/MetaService.js';
 import { genAidx } from '@/misc/id/aidx.js';
diff --git a/packages/backend/test/unit/S3Service.ts b/packages/backend/test/unit/S3Service.ts
index c1eafc96b7..2ffc99380d 100644
--- a/packages/backend/test/unit/S3Service.ts
+++ b/packages/backend/test/unit/S3Service.ts
@@ -6,7 +6,13 @@
 process.env.NODE_ENV = 'test';
 
 import { Test } from '@nestjs/testing';
-import { UploadPartCommand, CompleteMultipartUploadCommand, CreateMultipartUploadCommand, S3Client, PutObjectCommand } from '@aws-sdk/client-s3';
+import {
+	CompleteMultipartUploadCommand,
+	CreateMultipartUploadCommand,
+	PutObjectCommand,
+	S3Client,
+	UploadPartCommand,
+} from '@aws-sdk/client-s3';
 import { mockClient } from 'aws-sdk-client-mock';
 import { GlobalModule } from '@/GlobalModule.js';
 import { CoreModule } from '@/core/CoreModule.js';
diff --git a/packages/backend/test/unit/misc/id.ts b/packages/backend/test/unit/misc/id.ts
index 59783a9fa1..1498c075aa 100644
--- a/packages/backend/test/unit/misc/id.ts
+++ b/packages/backend/test/unit/misc/id.ts
@@ -4,13 +4,13 @@
  */
 
 import { ulid } from 'ulid';
-import { describe, test, expect } from '@jest/globals';
+import { describe, expect, test } from '@jest/globals';
 import { aidRegExp, genAid, parseAid } from '@/misc/id/aid.js';
 import { aidxRegExp, genAidx, parseAidx } from '@/misc/id/aidx.js';
 import { genMeid, meidRegExp, parseMeid } from '@/misc/id/meid.js';
 import { genMeidg, meidgRegExp, parseMeidg } from '@/misc/id/meidg.js';
 import { genObjectId, objectIdRegExp, parseObjectId } from '@/misc/id/object-id.js';
-import { ulidRegExp, parseUlid } from '@/misc/id/ulid.js';
+import { parseUlid, ulidRegExp } from '@/misc/id/ulid.js';
 
 describe('misc:id', () => {
 	test('aid', () => {
diff --git a/packages/backend/test/unit/misc/others.ts b/packages/backend/test/unit/misc/others.ts
index b16d26d866..caa815b3df 100644
--- a/packages/backend/test/unit/misc/others.ts
+++ b/packages/backend/test/unit/misc/others.ts
@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { describe, test, expect } from '@jest/globals';
+import { describe, expect, test } from '@jest/globals';
 import { contentDisposition } from '@/misc/content-disposition.js';
 
 describe('misc:content-disposition', () => {
diff --git a/packages/backend/test/utils.ts b/packages/backend/test/utils.ts
index 7c9428d476..2b232a0a5d 100644
--- a/packages/backend/test/utils.ts
+++ b/packages/backend/test/utils.ts
@@ -5,7 +5,7 @@
 
 import * as assert from 'node:assert';
 import { readFile } from 'node:fs/promises';
-import { isAbsolute, basename } from 'node:path';
+import { basename, isAbsolute } from 'node:path';
 import { randomUUID } from 'node:crypto';
 import { inspect } from 'node:util';
 import WebSocket, { ClientOptions } from 'ws';
@@ -68,7 +68,11 @@ export const failedApiCall = async <T, >(request: ApiRequest, assertion: {
 	return res.body;
 };
 
-const request = async (path: string, params: any, me?: UserToken): Promise<{ status: number, headers: Headers, body: any }> => {
+const request = async (path: string, params: any, me?: UserToken): Promise<{
+	status: number,
+	headers: Headers,
+	body: any
+}> => {
 	const bodyAuth: Record<string, string> = {};
 	const headers: Record<string, string> = {
 		'Content-Type': 'application/json',
@@ -275,7 +279,11 @@ interface UploadOptions {
  * Upload file
  * @param user User
  */
-export const uploadFile = async (user?: UserToken, { path, name, blob }: UploadOptions = {}): Promise<{ status: number, headers: Headers, body: misskey.Endpoints['drive/files/create']['res'] | null }> => {
+export const uploadFile = async (user?: UserToken, { path, name, blob }: UploadOptions = {}): Promise<{
+	status: number,
+	headers: Headers,
+	body: misskey.Endpoints['drive/files/create']['res'] | null
+}> => {
 	const absPath = path == null
 		? new URL('resources/Lenna.jpg', import.meta.url)
 		: isAbsolute(path.toString())
@@ -426,8 +434,8 @@ export const simpleGet = async (path: string, accept = '*/*', cookie: any = unde
 	];
 
 	const body =
-		jsonTypes.includes(res.headers.get('content-type') ?? '')	? await res.json() :
-		htmlTypes.includes(res.headers.get('content-type') ?? '')	? new JSDOM(await res.text()) :
+		jsonTypes.includes(res.headers.get('content-type') ?? '') ? await res.json() :
+		htmlTypes.includes(res.headers.get('content-type') ?? '') ? new JSDOM(await res.text()) :
 		null;
 
 	return {
@@ -557,3 +565,34 @@ export function sleep(msec: number) {
 		}, msec);
 	});
 }
+
+export async function sendEnvUpdateRequest(params: { key: string, value?: string }) {
+	const res = await fetch(
+		`http://localhost:${port + 1000}/env`,
+		{
+			method: 'POST',
+			headers: {
+				'Content-Type': 'application/json',
+			},
+			body: JSON.stringify(params),
+		},
+	);
+
+	if (res.status !== 200) {
+		throw new Error('server env update failed.');
+	}
+}
+
+export async function sendEnvResetRequest() {
+	const res = await fetch(
+		`http://localhost:${port + 1000}/env-reset`,
+		{
+			method: 'POST',
+			body: JSON.stringify({}),
+		},
+	);
+
+	if (res.status !== 200) {
+		throw new Error('server env update failed.');
+	}
+}