NCP - Natural Context Provider

/** * Unit Tests for CronManager * Tests crontab manipulation (requires mocking on most systems) */ import { describe, it, expect, beforeEach } from '@jest/globals'; import { CronManager } from '../../src/services/scheduler/cron-manager'; describe('CronManager', () => { describe('validateCronExpression', () => { it('should validate correct cron expressions', () => { const validExpressions = [ '* * * * *', // Every minute '0 9 * * *', // Daily at 9am '*/5 * * * *', // Every 5 minutes '0 9 * * 1-5', // Weekdays at 9am '30 14 * * 0', // Sundays at 2:30pm '0 0 1 * *', // First of month at midnight '15 10 * * 1,3,5', // Mon/Wed/Fri at 10:15am ]; for (const expr of validExpressions) { const result = CronManager.validateCronExpression(expr); expect(result.valid).toBe(true); } }); it('should reject invalid cron expressions', () => { const invalidExpressions = [ '', // Empty '* * * *', // Too few fields '* * * * * *', // Too many fields '60 * * * *', // Invalid minute '* 24 * * *', // Invalid hour '* * 0 * *', // Invalid day (0) '* * 32 * *', // Invalid day (32) '* * * 13 *', // Invalid month (13) '* * * * 8', // Invalid weekday (8) ]; for (const expr of invalidExpressions) { const result = CronManager.validateCronExpression(expr); expect(result.valid).toBe(false); expect(result.error).toBeDefined(); } }); it('should provide clear error messages', () => { const result = CronManager.validateCronExpression('60 * * * *'); expect(result.valid).toBe(false); expect(result.error).toContain('minute'); expect(result.error).toContain('0-59'); }); it('should handle cron with step values', () => { const result = CronManager.validateCronExpression('*/10 * * * *'); expect(result.valid).toBe(true); }); it('should handle cron with ranges', () => { const result = CronManager.validateCronExpression('0 9-17 * * *'); expect(result.valid).toBe(true); }); it('should handle cron with lists', () => { const result = CronManager.validateCronExpression('0 9,12,15 * * *'); expect(result.valid).toBe(true); }); }); describe('CronManager operations (Windows check)', () => { it('should throw on Windows platform', () => { // Only run this test on Windows if (process.platform === 'win32') { expect(() => new CronManager()).toThrow('does not support Windows'); } }); // Note: Actual crontab manipulation tests should be run in isolated CI environment // or with proper mocking since they modify system crontab }); });