test(backend): restore AP unit tests (#9987)

packages/backend/test/unit/activitypub.ts

@@ -0,0 +1,108 @@
+process.env.NODE_ENV = 'test';
+
+import * as assert from 'assert';
+import rndstr from 'rndstr';
+import { Test } from '@nestjs/testing';
+import { jest } from '@jest/globals';
+
+import { ApNoteService } from '@/core/activitypub/models/ApNoteService.js';
+import { ApPersonService } from '@/core/activitypub/models/ApPersonService.js';
+import { GlobalModule } from '@/GlobalModule.js';
+import { CoreModule } from '@/core/CoreModule.js';
+import { FederatedInstanceService } from '@/core/FederatedInstanceService.js';
+import { LoggerService } from '@/core/LoggerService.js';
+import { MockResolver } from '../misc/mock-resolver.js';
+
+describe('ActivityPub', () => {
+	let noteService: ApNoteService;
+	let personService: ApPersonService;
+	let resolver: MockResolver;
+
+	beforeEach(async () => {
+		const app = await Test.createTestingModule({
+			imports: [GlobalModule, CoreModule],
+		}).compile();
+
+		await app.init();
+		app.enableShutdownHooks();
+
+		noteService = app.get<ApNoteService>(ApNoteService);
+		personService = app.get<ApPersonService>(ApPersonService);
+		resolver = new MockResolver(await app.resolve<LoggerService>(LoggerService));
+
+		// Prevent ApPersonService from fetching instance, as it causes Jest import-after-test error
+		const federatedInstanceService = app.get<FederatedInstanceService>(FederatedInstanceService);
+		jest.spyOn(federatedInstanceService, 'fetch').mockImplementation(() => new Promise(() => {}));
+	});
+
+	describe('Parse minimum object', () => {
+		const host = 'https://host1.test';
+		const preferredUsername = `${rndstr('A-Z', 4)}${rndstr('a-z', 4)}`;
+		const actorId = `${host}/users/${preferredUsername.toLowerCase()}`;
+
+		const actor = {
+			'@context': 'https://www.w3.org/ns/activitystreams',
+			id: actorId,
+			type: 'Person',
+			preferredUsername,
+			inbox: `${actorId}/inbox`,
+			outbox: `${actorId}/outbox`,
+		};
+
+		const post = {
+			'@context': 'https://www.w3.org/ns/activitystreams',
+			id: `${host}/users/${rndstr('0-9a-z', 8)}`,
+			type: 'Note',
+			attributedTo: actor.id,
+			to: 'https://www.w3.org/ns/activitystreams#Public',
+			content: 'あ',
+		};
+
+		test('Minimum Actor', async () => {
+			resolver._register(actor.id, actor);
+
+			const user = await personService.createPerson(actor.id, resolver);
+
+			assert.deepStrictEqual(user.uri, actor.id);
+			assert.deepStrictEqual(user.username, actor.preferredUsername);
+			assert.deepStrictEqual(user.inbox, actor.inbox);
+		});
+
+		test('Minimum Note', async () => {
+			resolver._register(actor.id, actor);
+			resolver._register(post.id, post);
+
+			const note = await noteService.createNote(post.id, resolver, true);
+
+			assert.deepStrictEqual(note?.uri, post.id);
+			assert.deepStrictEqual(note.visibility, 'public');
+			assert.deepStrictEqual(note.text, post.content);
+		});
+	});
+
+	describe('Truncate long name', () => {
+		const host = 'https://host1.test';
+		const preferredUsername = `${rndstr('A-Z', 4)}${rndstr('a-z', 4)}`;
+		const actorId = `${host}/users/${preferredUsername.toLowerCase()}`;
+
+		const name = rndstr('0-9a-z', 129);
+
+		const actor = {
+			'@context': 'https://www.w3.org/ns/activitystreams',
+			id: actorId,
+			type: 'Person',
+			preferredUsername,
+			name,
+			inbox: `${actorId}/inbox`,
+			outbox: `${actorId}/outbox`,
+		};
+
+		test('Actor', async () => {
+			resolver._register(actor.id, actor);
+
+			const user = await personService.createPerson(actor.id, resolver);
+
+			assert.deepStrictEqual(user.name, actor.name.substr(0, 128));
+		});
+	});
+});