const {
    calculateBroadcastIPv4FromCidr,
    calculateNetworkIPv4FromCidr,
  } = require('../../src/utils/ipSubnetUtils');
  
  describe('IPv4 subnet utilties', () => {
    describe('calculateBroadcastIPv4FromCidr', () => {
      test('should return the broadcast address for a given CIDR', () => {
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/24')).toBe('192.168.1.255');
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/25')).toBe('192.168.1.127');
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/26')).toBe('192.168.1.63');
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/27')).toBe('192.168.1.31');
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/28')).toBe('192.168.1.15');
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/29')).toBe('192.168.1.7');
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/30')).toBe('192.168.1.3');
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/31')).toBe('192.168.1.1');
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/32')).toBe('192.168.1.0');
      });
  
      test('should return null for invalid CIDR notation', () => {
        expect(calculateBroadcastIPv4FromCidr(null)).toBe(null);
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0')).toBe(null);
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/')).toBe(null);
        expect(calculateBroadcastIPv4FromCidr('192.168.1.0/abc')).toBe(null);
      });
    });
  
    describe('calculateNetworkIPv4FromCidr', () => {
      test('should return the network address for a given CIDR', () => {
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/24')).toBe('192.168.1.0');
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/25')).toBe('192.168.1.0');
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/26')).toBe('192.168.1.0');
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/27')).toBe('192.168.1.0');
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/28')).toBe('192.168.1.0');
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/29')).toBe('192.168.1.0');
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/30')).toBe('192.168.1.0');
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/31')).toBe('192.168.1.0');
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/32')).toBe('192.168.1.0');
      });
  
      test('should return null for invalid CIDR notation', () => {
        expect(calculateNetworkIPv4FromCidr(null)).toBe(null);
        expect(calculateNetworkIPv4FromCidr('192.168.1.0')).toBe(null);
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/')).toBe(null);
        expect(calculateNetworkIPv4FromCidr('192.168.1.0/abc')).toBe(null);
      });
    });
  });