@lxe/maxmind-db-reader/test/test-ipparser.js

This is the pure Node API for reading MaxMind DB files. MaxMind DB is a binary file format that stores data indexed by IP address subnets (IPv4 or IPv6).

var IPParser = require('../lib/IPParser');
var scotchTape = require('scotch-tape');

var ipParseTest = scotchTape({
    asserts: {
        verifyParse: function verifyParse(ip, expected) {
            this.doesNotThrow(function validate() {
                IPParser(ip);
            });
            this.looseEquals(IPParser(ip), expected);
        },
        verifyParseThrows: function verifyParseThrows(ip) {
            this.throws(function verifyParse() {
                IPParser(ip);
            });
        }
    }
});

ipParseTest('IPv4', function run(it) {
    it('should successfully parse correct formats', function should(t) {
        t.verifyParse('127.0.0.1', new Buffer([0x7f, 0x00, 0x00, 0x01]));
        t.verifyParse('10.10.200.59', new Buffer([0x0a, 0x0a, 0xc8, 0x3b]));
        t.end();
    });

    it('should throw exception on invalid ipv4 formats', function should(t) {
        t.verifyParseThrows('127.0.0.a');
        t.verifyParseThrows('myipaddress');
        t.end();
    });
});

ipParseTest('IPv6', function run(it) {
    it('should successfully parse correct formats', function should(t) {
        t.verifyParse('2001:0db8:85a3:0000:0000:8a2e:0370:7334', new Buffer([0x20, 0x01, 0x0d, 0xb8, 0x85, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x8a, 0x2e, 0x03, 0x70, 0x73, 0x34]));
        t.verifyParse('2001:db8:85a3::8a2e:370:7334', new Buffer([0x20, 0x01, 0x0d, 0xb8, 0x85, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x8a, 0x2e, 0x03, 0x70, 0x73, 0x34]));
        t.end();
    });

    it('should throw exception on invalid ipv4 formats', function should(t) {
        t.verifyParseThrows('myipaddress');
        t.verifyParseThrows('::ffff:192.0.2.128');
        t.end();
    });
});