memegoat/backend/src/users/users.service.spec.ts

jest.mock("uuid", () => ({
	v4: jest.fn(() => "mocked-uuid"),
}));

jest.mock("@noble/post-quantum/ml-kem.js", () => ({
	ml_kem768: {
		keygen: jest.fn(),
		encapsulate: jest.fn(),
		decapsulate: jest.fn(),
	},
}));

jest.mock("jose", () => ({
	SignJWT: jest.fn(),
	jwtVerify: jest.fn(),
}));

import { CACHE_MANAGER } from "@nestjs/cache-manager";
import { ConfigService } from "@nestjs/config";
import { Test, TestingModule } from "@nestjs/testing";
import { RbacService } from "../auth/rbac.service";
import { MediaService } from "../media/media.service";
import { S3Service } from "../s3/s3.service";
import { UsersRepository } from "./repositories/users.repository";
import { UsersService } from "./users.service";

describe("UsersService", () => {
	let service: UsersService;
	let repository: UsersRepository;

	const mockUsersRepository = {
		create: jest.fn(),
		findOne: jest.fn(),
		findByEmailHash: jest.fn(),
		findOneWithPrivateData: jest.fn(),
		countAll: jest.fn(),
		findAll: jest.fn(),
		findByUsername: jest.fn(),
		update: jest.fn(),
		getTwoFactorSecret: jest.fn(),
		getUserContents: jest.fn(),
		getUserFavorites: jest.fn(),
		softDeleteUserAndContents: jest.fn(),
	};

	const mockCacheManager = {
		del: jest.fn(),
	};

	const mockRbacService = {
		getUserRoles: jest.fn(),
	};

	const mockMediaService = {
		scanFile: jest.fn(),
		processImage: jest.fn(),
	};

	const mockS3Service = {
		uploadFile: jest.fn(),
		getPublicUrl: jest.fn(),
	};

	const mockConfigService = {
		get: jest.fn(),
	};

	beforeEach(async () => {
		jest.clearAllMocks();

		const module: TestingModule = await Test.createTestingModule({
			providers: [
				UsersService,
				{ provide: UsersRepository, useValue: mockUsersRepository },
				{ provide: CACHE_MANAGER, useValue: mockCacheManager },
				{ provide: RbacService, useValue: mockRbacService },
				{ provide: MediaService, useValue: mockMediaService },
				{ provide: S3Service, useValue: mockS3Service },
				{ provide: ConfigService, useValue: mockConfigService },
			],
		}).compile();

		service = module.get<UsersService>(UsersService);
		repository = module.get<UsersRepository>(UsersRepository);
	});

	it("should be defined", () => {
		expect(service).toBeDefined();
	});

	describe("create", () => {
		it("should create a user", async () => {
			const data = {
				username: "u1",
				email: "e1",
				passwordHash: "p1",
				emailHash: "eh1",
			};
			mockUsersRepository.create.mockResolvedValue({ uuid: "uuid1", ...data });

			const result = await service.create(data);

			expect(result.uuid).toBe("uuid1");
			expect(repository.create).toHaveBeenCalledWith(data);
		});
	});

	describe("findOne", () => {
		it("should find a user", async () => {
			mockUsersRepository.findOne.mockResolvedValue({ uuid: "uuid1" });
			const result = await service.findOne("uuid1");
			expect(result.uuid).toBe("uuid1");
		});

		it("should return null if not found", async () => {
			mockUsersRepository.findOne.mockResolvedValue(null);
			const result = await service.findOne("uuid1");
			expect(result).toBeNull();
		});
	});

	describe("update", () => {
		it("should update a user", async () => {
			mockUsersRepository.update.mockResolvedValue([
				{ uuid: "uuid1", displayName: "New" },
			]);
			const result = await service.update("uuid1", { displayName: "New" });
			expect(result[0].displayName).toBe("New");
		});
	});
});