FindMine Shopping Stylist

import { describe, it, expect, beforeEach, vi, afterEach } from 'vitest'; import { Cache } from '../../src/utils/cache.js'; describe('Cache', () => { let cache: Cache<string>; beforeEach(() => { // Create a cache with 1000ms TTL for testing cache = new Cache<string>(1000); vi.useFakeTimers(); }); afterEach(() => { vi.useRealTimers(); }); describe('set and get', () => { it('should store and retrieve a value', () => { cache.set('key1', 'value1'); expect(cache.get('key1')).toBe('value1'); }); it('should store multiple values', () => { cache.set('key1', 'value1'); cache.set('key2', 'value2'); cache.set('key3', 'value3'); expect(cache.get('key1')).toBe('value1'); expect(cache.get('key2')).toBe('value2'); expect(cache.get('key3')).toBe('value3'); }); it('should overwrite existing values', () => { cache.set('key1', 'original'); cache.set('key1', 'updated'); expect(cache.get('key1')).toBe('updated'); }); it('should return undefined for non-existent keys', () => { expect(cache.get('nonexistent')).toBeUndefined(); }); }); describe('TTL expiration', () => { it('should return value before TTL expires', () => { cache.set('key1', 'value1'); // Advance time but not past TTL vi.advanceTimersByTime(500); expect(cache.get('key1')).toBe('value1'); }); it('should return undefined after TTL expires', () => { cache.set('key1', 'value1'); // Advance time past TTL vi.advanceTimersByTime(1001); expect(cache.get('key1')).toBeUndefined(); }); it('should delete expired entry on get', () => { cache.set('key1', 'value1'); expect(cache.size()).toBe(1); // Advance time past TTL vi.advanceTimersByTime(1001); // Getting the expired key should delete it cache.get('key1'); expect(cache.size()).toBe(0); }); it('should handle different TTL values', () => { // Create cache with 5 second TTL const longCache = new Cache<string>(5000); longCache.set('key1', 'value1'); // After 3 seconds, value should still be there vi.advanceTimersByTime(3000); expect(longCache.get('key1')).toBe('value1'); // After 5+ seconds total, value should be gone vi.advanceTimersByTime(2001); expect(longCache.get('key1')).toBeUndefined(); }); }); describe('delete', () => { it('should delete a specific key', () => { cache.set('key1', 'value1'); cache.set('key2', 'value2'); cache.delete('key1'); expect(cache.get('key1')).toBeUndefined(); expect(cache.get('key2')).toBe('value2'); }); it('should not throw when deleting non-existent key', () => { expect(() => cache.delete('nonexistent')).not.toThrow(); }); }); describe('clear', () => { it('should remove all entries from cache', () => { cache.set('key1', 'value1'); cache.set('key2', 'value2'); cache.set('key3', 'value3'); cache.clear(); expect(cache.size()).toBe(0); expect(cache.get('key1')).toBeUndefined(); expect(cache.get('key2')).toBeUndefined(); expect(cache.get('key3')).toBeUndefined(); }); it('should not throw when clearing empty cache', () => { expect(() => cache.clear()).not.toThrow(); }); }); describe('size', () => { it('should return 0 for empty cache', () => { expect(cache.size()).toBe(0); }); it('should return correct count of entries', () => { cache.set('key1', 'value1'); expect(cache.size()).toBe(1); cache.set('key2', 'value2'); expect(cache.size()).toBe(2); cache.set('key3', 'value3'); expect(cache.size()).toBe(3); }); it('should not increase size when overwriting', () => { cache.set('key1', 'value1'); cache.set('key1', 'updated'); expect(cache.size()).toBe(1); }); }); describe('cleanExpired', () => { it('should remove all expired entries', () => { cache.set('key1', 'value1'); cache.set('key2', 'value2'); // Advance time past TTL vi.advanceTimersByTime(1001); // Add a fresh entry cache.set('key3', 'value3'); expect(cache.size()).toBe(3); cache.cleanExpired(); expect(cache.size()).toBe(1); expect(cache.get('key1')).toBeUndefined(); expect(cache.get('key2')).toBeUndefined(); expect(cache.get('key3')).toBe('value3'); }); it('should not remove non-expired entries', () => { cache.set('key1', 'value1'); cache.set('key2', 'value2'); // Advance time but not past TTL vi.advanceTimersByTime(500); cache.cleanExpired(); expect(cache.size()).toBe(2); expect(cache.get('key1')).toBe('value1'); expect(cache.get('key2')).toBe('value2'); }); it('should handle empty cache', () => { expect(() => cache.cleanExpired()).not.toThrow(); expect(cache.size()).toBe(0); }); }); describe('createKey', () => { it('should join parts with colon separator', () => { expect(Cache.createKey(['user', '123', 'profile'])).toBe('user:123:profile'); }); it('should handle single part', () => { expect(Cache.createKey(['single'])).toBe('single'); }); it('should handle empty array', () => { expect(Cache.createKey([])).toBe(''); }); it('should handle parts with special characters', () => { expect(Cache.createKey(['api', 'v2', 'products/123'])).toBe('api:v2:products/123'); }); }); describe('with complex types', () => { it('should store and retrieve objects', () => { const objectCache = new Cache<{ id: number; name: string }>(1000); const obj = { id: 1, name: 'test' }; objectCache.set('obj1', obj); expect(objectCache.get('obj1')).toEqual({ id: 1, name: 'test' }); }); it('should store and retrieve arrays', () => { const arrayCache = new Cache<number[]>(1000); const arr = [1, 2, 3, 4, 5]; arrayCache.set('arr1', arr); expect(arrayCache.get('arr1')).toEqual([1, 2, 3, 4, 5]); }); }); });