svrjs/tests/utils/ipMatch.test.js

const ipMatch = require('../../src/utils/ipMatch');

describe('ipMatch', () => {
  test('should return true if IP1 is empty', () => {
    expect(ipMatch('', '192.168.1.1')).toBe(true);
  });

  test('should return false if IP2 is empty', () => {
    expect(ipMatch('192.168.1.1', '')).toBe(false);
  });

  test('should return true if both IPs are empty', () => {
    expect(ipMatch('', '')).toBe(true);
  });

  test('should return true if both IPs are the same IPv4 address', () => {
    expect(ipMatch('192.168.1.1', '192.168.1.1')).toBe(true);
  });

  test('should return false if IPs are different IPv4 addresses', () => {
    expect(ipMatch('192.168.1.1', '192.168.1.2')).toBe(false);
  });

  test('should normalize IPv4 addresses with leading zeros', () => {
    expect(ipMatch('192.168.001.001', '192.168.1.1')).toBe(true);
  });

  test('should return true if both IPs are the same IPv6 address', () => {
    expect(ipMatch('2001:0db8:85a3:0000:0000:8a2e:0370:7334', '2001:db8:85a3::8a2e:370:7334')).toBe(true);
  });

  test('should return false if IPs are different IPv6 addresses', () => {
    expect(ipMatch('2001:0db8:85a3:0000:0000:8a2e:0370:7334', '2001:db8:85a3::8a2e:370:7335')).toBe(false);
  });

  test('should expand IPv6 addresses with "::"', () => {
    expect(ipMatch('::1', '0:0:0:0:0:0:0:1')).toBe(true);
  });

  test('should handle IPv6 addresses with embedded IPv4 addresses', () => {
    expect(ipMatch('::ffff:192.168.1.1', '192.168.1.1')).toBe(true);
  });

  test('should handle "localhost" as IPv6 loopback address', () => {
    expect(ipMatch('localhost', '::1')).toBe(true);
  });

  test('should handle mixed case IP addresses', () => {
    expect(ipMatch('192.168.1.1', '192.168.1.1')).toBe(true);
    expect(ipMatch('2001:DB8:85A3::8A2E:370:7334', '2001:db8:85a3::8a2e:370:7334')).toBe(true);
  });

  test('should handle IPv6 addresses with leading zeros', () => {
    expect(ipMatch('2001:0db8:85a3:0000:0000:8a2e:0370:7334', '2001:db8:85a3::8a2e:370:7334')).toBe(true);
  });

  test('should handle IPv6 addresses with mixed case and leading zeros', () => {
    expect(ipMatch('2001:0DB8:85A3:0000:0000:8A2E:0370:7334', '2001:db8:85a3::8a2e:370:7334')).toBe(true);
  });
});