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var common = require('../common');
var assert = require('assert');
var dns = require('dns');
// Try resolution without callback
dns.lookup(null, function(error, result, addressType) {
assert.equal(null, result);
assert.equal(4, addressType);
});
dns.lookup('127.0.0.1', function(error, result, addressType) {
assert.equal('127.0.0.1', result);
assert.equal(4, addressType);
});
dns.lookup('::1', function(error, result, addressType) {
assert.equal('::1', result);
assert.equal(6, addressType);
});
// Try calling resolve with an unsupported type.
assert.throws(function() {
dns.resolve('www.google.com', 'HI');
}, /Unknown type/);
// Windows doesn't usually have an entry for localhost 127.0.0.1 in
// C:\Windows\System32\drivers\etc\hosts
// so we disable this test on Windows.
if (process.platform != 'win32') {
dns.resolve('127.0.0.1', 'PTR', function(error, domains) {
if (error) throw error;
assert.ok(Array.isArray(domains));
});
}
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