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42 lines
1.2 KiB
42 lines
1.2 KiB
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const dns = require('dns');
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// Try resolution without callback
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dns.lookup(null, common.mustCall((error, result, addressType) => {
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assert.ifError(error);
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assert.strictEqual(null, result);
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assert.strictEqual(4, addressType);
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}));
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dns.lookup('127.0.0.1', common.mustCall((error, result, addressType) => {
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assert.ifError(error);
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assert.strictEqual('127.0.0.1', result);
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assert.strictEqual(4, addressType);
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}));
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dns.lookup('::1', common.mustCall((error, result, addressType) => {
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assert.ifError(error);
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assert.strictEqual('::1', result);
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assert.strictEqual(6, addressType);
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}));
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// Try calling resolve with an unsupported type.
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assert.throws(() => dns.resolve('www.google.com', 'HI'), /Unknown type/);
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// Try calling resolve with an unsupported type that's an object key
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assert.throws(() => dns.resolve('www.google.com', 'toString'), /Unknown type/);
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// Windows doesn't usually have an entry for localhost 127.0.0.1 in
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// C:\Windows\System32\drivers\etc\hosts
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// so we disable this test on Windows.
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if (!common.isWindows) {
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dns.reverse('127.0.0.1', common.mustCall(function(error, domains) {
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assert.ifError(error);
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assert.ok(Array.isArray(domains));
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}));
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}
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