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'use strict';
const common = require('../common');
const assert = require('assert');
const dns = require('dns');
const net = require('net');
let running = false;
const queue = [];
const dnsPromises = dns.promises;
const isIPv4 = net.isIPv4;
const isIPv6 = net.isIPv6;
dns.setServers([ '8.8.8.8', '8.8.4.4' ]);
function checkWrap(req) {
assert.ok(typeof req === 'object');
}
const checkers = {
checkA(r) {
assert.ok(isIPv4(r.address));
assert.strictEqual(typeof r.ttl, 'number');
assert.strictEqual(r.type, 'A');
},
checkAAAA(r) {
assert.ok(isIPv6(r.address));
assert.strictEqual(typeof r.ttl, 'number');
assert.strictEqual(r.type, 'AAAA');
},
checkCNAME(r) {
assert.ok(r.value);
assert.strictEqual(typeof r.value, 'string');
assert.strictEqual(r.type, 'CNAME');
},
checkMX(r) {
assert.strictEqual(typeof r.exchange, 'string');
assert.strictEqual(typeof r.priority, 'number');
assert.strictEqual(r.type, 'MX');
},
checkNAPTR(r) {
assert.strictEqual(typeof r.flags, 'string');
assert.strictEqual(typeof r.service, 'string');
assert.strictEqual(typeof r.regexp, 'string');
assert.strictEqual(typeof r.replacement, 'string');
assert.strictEqual(typeof r.order, 'number');
assert.strictEqual(typeof r.preference, 'number');
assert.strictEqual(r.type, 'NAPTR');
},
checkNS(r) {
assert.strictEqual(typeof r.value, 'string');
assert.strictEqual(r.type, 'NS');
},
checkPTR(r) {
assert.strictEqual(typeof r.value, 'string');
assert.strictEqual(r.type, 'PTR');
},
checkTXT(r) {
assert.ok(Array.isArray(r.entries));
assert.ok(r.entries.length > 0);
assert.strictEqual(r.type, 'TXT');
},
checkSOA(r) {
assert.strictEqual(typeof r.nsname, 'string');
assert.strictEqual(typeof r.hostmaster, 'string');
assert.strictEqual(typeof r.serial, 'number');
assert.strictEqual(typeof r.refresh, 'number');
assert.strictEqual(typeof r.retry, 'number');
assert.strictEqual(typeof r.expire, 'number');
assert.strictEqual(typeof r.minttl, 'number');
assert.strictEqual(r.type, 'SOA');
},
checkSRV(r) {
assert.strictEqual(typeof r.name, 'string');
assert.strictEqual(typeof r.port, 'number');
assert.strictEqual(typeof r.priority, 'number');
assert.strictEqual(typeof r.weight, 'number');
assert.strictEqual(r.type, 'SRV');
}
};
function TEST(f) {
function next() {
const f = queue.shift();
if (f) {
running = true;
f(done);
}
}
function done() {
running = false;
process.nextTick(next);
}
queue.push(f);
if (!running) {
next();
}
}
function processResult(res) {
assert.ok(Array.isArray(res));
assert.ok(res.length > 0);
const types = {};
res.forEach((obj) => {
types[obj.type] = true;
checkers[`check${obj.type}`](obj);
});
return types;
}
TEST(async function test_google(done) {
function validateResult(res) {
const types = processResult(res);
assert.ok(
types.A && types.AAAA && types.MX &&
types.NS && types.TXT && types.SOA);
}
validateResult(await dnsPromises.resolve('google.com', 'ANY'));
const req = dns.resolve(
'google.com',
'ANY',
common.mustCall(function(err, ret) {
assert.ifError(err);
validateResult(ret);
done();
}));
checkWrap(req);
});
TEST(async function test_sip2sip_for_naptr(done) {
function validateResult(res) {
const types = processResult(res);
assert.ok(types.A && types.NS && types.NAPTR && types.SOA);
}
validateResult(await dnsPromises.resolve('sip2sip.info', 'ANY'));
const req = dns.resolve(
'sip2sip.info',
'ANY',
common.mustCall(function(err, ret) {
assert.ifError(err);
validateResult(ret);
done();
}));
checkWrap(req);
});
TEST(async function test_google_for_cname_and_srv(done) {
function validateResult(res) {
const types = processResult(res);
assert.ok(types.SRV);
}
validateResult(await dnsPromises.resolve('_jabber._tcp.google.com', 'ANY'));
const req = dns.resolve(
'_jabber._tcp.google.com',
'ANY',
common.mustCall(function(err, ret) {
assert.ifError(err);
validateResult(ret);
done();
}));
checkWrap(req);
});
TEST(async function test_ptr(done) {
function validateResult(res) {
const types = processResult(res);
assert.ok(types.PTR);
}
validateResult(await dnsPromises.resolve('8.8.8.8.in-addr.arpa', 'ANY'));
const req = dns.resolve(
'8.8.8.8.in-addr.arpa',
'ANY',
common.mustCall(function(err, ret) {
assert.ifError(err);
validateResult(ret);
done();
}));
checkWrap(req);
});
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