'use strict';

/* global it, describe */

const expect = require('expect.js'),
    ipaddr = require('../ipaddr.js');

describe('ipaddr', function () {
    describe('IPv4', function () {
        const goodIPv4s = [ '1.2.3.4', '0.235.255.123' ];
        const badIPv4s = [ '1.2.3', '1.2.3.256', '-1.2.3.4', '1e2.5.6.7', 'x.7.8.9', '1..2.4' ];

        for (const goodIPv4 of goodIPv4s) {
            it(`isValid returns true ${goodIPv4}`, () => expect(ipaddr.isValid(goodIPv4)).to.be(true));
        }

        for (const badIPv4 of badIPv4s) {
            it(`isValid returns false ${badIPv4}`, () => expect(ipaddr.isValid(badIPv4)).to.be(false));
        }

        const goodCIDRs = [
            '192.168.1.0/24'
        ];

        const badCIDRs = [
            '192.168.1.0/-1',
            '192.168.1.0/',
            '192.168.1.0/33',
            '192.168.1.0/1e2'
        ];

        for (const goodCIDR of goodCIDRs) {
            it(`isValidCIDR returns true ${goodCIDR}`, () => expect(ipaddr.isValidCIDR(goodCIDR)).to.be(true));
        }

        for (const badCIDR of badCIDRs) {
            it(`isValidCIDR returns false ${badCIDR}`, () => expect(ipaddr.isValidCIDR(badCIDR)).to.be(false));
        }

        it('isEqual', function () {
            expect(ipaddr.isEqual('1.2.3.4', '1.2.3.4')).to.be(true);
            expect(ipaddr.isEqual('1.2.3.4', '1.2.3.5')).to.be(false);
            expect(ipaddr.isEqual('1.2.3.4', '1.2.3.')).to.be(false);
        });

        it('includes', function () {
            expect(ipaddr.includes('1.2.3.0/8', '1.2.3.4')).to.be(true);
            expect(ipaddr.includes('1.2.0.0/16', '1.3.0.0')).to.be(false);
        });
    });

    describe('IPv6', function () {
        const goodIPv6s = [
            '2001:0db8:85a3:0000:0000:8a2e:0370:7334',
            '::1',
            '2001:db8::ff00:42:8329',
            '::ffff:1.2.3.4',
            '2001:db8:85a3::8a2e:370:7334',
            '2001:0db8:85a3::',
            '2000::',
            '2002:c0a8:101::42',
            '::a:b'
        ];
        const badIPv6s = [
            '2001:db8::85a3::8a2e:370:7334', // too many ::
            '2001:db8::85a3:8g2e:370:7334', // invalid hex
            '12345::1', // segment too long
            '::a:b:c:d:e:f:f:f:f', // too many segments
            ':192:168:0:1',
        ];

        for (const goodIPv6 of goodIPv6s) {
            it(`isValid returns true ${goodIPv6}`, () => expect(ipaddr.isValid(goodIPv6)).to.be(true));
        }

        for (const badIPv6 of badIPv6s) {
            it(`isValid returns false ${badIPv6}`, () => expect(ipaddr.isValid(badIPv6)).to.be(false));
        }

        const goodCIDRs = [
            '2001:db8::/32',
            '::/128'
        ];

        const badCIDRs = [
            '2001:db8::/129',
            '::a/abc'
        ];

        for (const goodCIDR of goodCIDRs) {
            it(`isValidCIDR returns true ${goodCIDR}`, () => expect(ipaddr.isValidCIDR(goodCIDR)).to.be(true));
        }

        for (const badCIDR of badCIDRs) {
            it(`isValidCIDR returns false ${badCIDR}`, () => expect(ipaddr.isValidCIDR(badCIDR)).to.be(false));
        }

        it('isEqual', function () {
            expect(ipaddr.isEqual('2001:0db8:85a3:0000:0000:8a2e:0370:7334', '2001:0db8:85a3:0000:0000:8a2e:0370:7334')).to.be(true); // same
            expect(ipaddr.isEqual('2001:0db8:85a3:0000:0000:8a2e:0370:7334', '2001:0db8:85a3::0000:8a2e:0370:7334')).to.be(true); // shorthand
            expect(ipaddr.isEqual('2001:db8:85A3:0000:0000:8a2e:0370:7334', '2001:0db8:85a3::0000:8a2e:370:7334')).to.be(true); // casing change and no 0 prefix
            expect(ipaddr.isEqual('2001:db8:85A3:0000:0000:8a2e:0370:7334', '1.2.3.4')).to.be(false);
            expect(ipaddr.isEqual('::ffff:1.2.3.4', '1.2.3.4')).to.be(true); // ipv6 mapped ipv4
            expect(ipaddr.isEqual('2002:0db8:85a3:0000:0000:8a2e:0370:7334', '2001:0db8:85a3:0000:0000:8a2e:0370:7334')).to.be(false);
        });

        it('includes', function () {
            expect(ipaddr.includes('2001:0db8:85a3::/64', '2001:0db8:85a3:0000:0000:8a2e:0370:7334')).to.be(true);
            expect(ipaddr.includes('2001:0db8:85a3::/64', '2002:0db8:85a3:0000:0000:8a2e:0370:7334')).to.be(false);
            expect(ipaddr.includes('::ffff:0:0/96', '1.2.3.4')).to.be(true); // ipv6 mapped ipv4
        });
    });
});