/**
 * Utility functions unit tests
 */

import { describe, it, expect } from 'vitest';
import { generateRandomNumber, generateRandomKey } from '../../src/utils';

describe('generateRandomNumber', () => {
  it('should generate a number within the specified range', () => {
    const result = generateRandomNumber(1, 10);
    expect(result).toBeGreaterThanOrEqual(1);
    expect(result).toBeLessThanOrEqual(10);
  });

  it('should use default values when no arguments provided', () => {
    const result = generateRandomNumber();
    expect(result).toBeGreaterThanOrEqual(0);
    expect(result).toBeLessThanOrEqual(100);
  });

  it('should throw error when min is greater than max', () => {
    expect(() => generateRandomNumber(10, 5)).toThrow('Min value cannot be greater than max value');
  });

  it('should handle equal min and max', () => {
    const result = generateRandomNumber(5, 5);
    expect(result).toBe(5);
  });
});

describe('generateRandomKey', () => {
  it('should generate a non-empty string', () => {
    const result = generateRandomKey();
    expect(result).toBeTruthy();
    expect(typeof result).toBe('string');
    expect(result.length).toBeGreaterThan(0);
  });

  it('should generate different keys on each call', () => {
    const key1 = generateRandomKey();
    const key2 = generateRandomKey();
    expect(key1).not.toBe(key2);
  });

  it('should generate keys that start with timestamp', () => {
    const result = generateRandomKey();
    const timestamp = Date.now();
    const keyTimestamp = parseInt(result.substring(0, 13));
    // Should be within 1 second of current timestamp
    expect(Math.abs(timestamp - keyTimestamp)).toBeLessThan(1000);
  });
});