TeamCity MCP Server

import { LRUCache } from '@/utils/lru-cache'; describe('LRUCache', () => { afterEach(() => { jest.restoreAllMocks(); }); it('returns null for missing keys', () => { const cache = new LRUCache<string>(); expect(cache.get('missing')).toBeNull(); expect(cache.has('missing')).toBe(false); }); it('stores and retrieves values while honoring LRU eviction', () => { const cache = new LRUCache<string>({ maxSize: 2 }); cache.set('a', 'first'); cache.set('b', 'second'); expect(cache.get('a')).toBe('first'); cache.set('c', 'third'); expect(cache.has('b')).toBe(false); expect(cache.has('a')).toBe(true); expect(Array.from(cache.keys())).toEqual(['a', 'c']); }); it('expires entries based on ttl when reading', () => { const nowSpy = jest.spyOn(Date, 'now'); nowSpy.mockReturnValue(0); const cache = new LRUCache<string>({ ttl: 100 }); cache.set('key', 'value'); nowSpy.mockReturnValue(200); expect(cache.get('key')).toBeNull(); expect(cache.has('key')).toBe(false); }); it('evictExpired removes stale entries without touching valid ones', () => { const nowSpy = jest.spyOn(Date, 'now'); const cache = new LRUCache<string>({ ttl: 50 }); nowSpy.mockReturnValue(0); cache.set('old', 'value'); nowSpy.mockReturnValue(70); cache.set('fresh', 'value'); nowSpy.mockReturnValue(100); cache.evictExpired(); expect(cache.has('old')).toBe(false); expect(cache.has('fresh')).toBe(true); expect(cache.size()).toBe(1); }); });