import fs from 'fs/promises';
import path from 'path';
import os from 'os';
import SharedStateService from '../../services/shared-state-service';
import { createSharedState } from '../factories/shared-state-factory';
jest.mock('../../logger', () => ({
debug: jest.fn(),
error: jest.fn(),
}));
describe('SharedStateService', () => {
let service: SharedStateService;
let testPath: string;
beforeEach(async () => {
testPath = path.join(os.tmpdir(), `test-${Date.now()}.json`);
(SharedStateService as any).SHARED_STATE_PATH = testPath;
service = new SharedStateService();
});
afterEach(async () => {
try {
await fs.unlink(testPath);
} catch {
// ignore
}
});
describe('saveState', () => {
it('writes state to file', async () => {
const state = createSharedState();
await service.saveState(state);
const content = await fs.readFile(testPath, 'utf8');
const parsed = JSON.parse(content);
expect(parsed.data.processedPointedDOMElement).toEqual(state.data.processedPointedDOMElement);
});
it('overwrites corrupted file', async () => {
await fs.writeFile(testPath, 'invalid json');
const state = createSharedState();
await service.saveState(state);
const content = await fs.readFile(testPath, 'utf8');
const parsed = JSON.parse(content);
expect(parsed.data.processedPointedDOMElement).toEqual(state.data.processedPointedDOMElement);
});
});
describe('getPointedElement', () => {
it('returns processed element from state', async () => {
const state = createSharedState();
await fs.writeFile(testPath, JSON.stringify(state));
const result = await service.getPointedElement();
expect(result).toEqual(state.data.processedPointedDOMElement);
});
it('returns null for invalid json', async () => {
await fs.writeFile(testPath, 'invalid json');
const result = await service.getPointedElement();
expect(result).toBeNull();
});
it('returns null when file does not exist', async () => {
const result = await service.getPointedElement();
expect(result).toBeNull();
});
});
});
