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For the initial iteration, only the default resolver can be serialized/deserialized. If `dns.setServers()` has been called, we'll preserve the configured DNS servers in the snapshot. We can consider exposing the serialization method if it becomes necessary for user-land snapshots. PR-URL: https://github.com/nodejs/node/pull/44633 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
37 lines
970 B
JavaScript
37 lines
970 B
JavaScript
'use strict';
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// This tests support for the dns module in snapshot.
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require('../common');
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const assert = require('assert');
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const tmpdir = require('../common/tmpdir');
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const fixtures = require('../common/fixtures');
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const { buildSnapshot, runWithSnapshot } = require('../common/snapshot');
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const {
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addresses: { DNS4_SERVER, INET4_IP, INET4_HOST },
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} = require('../common/internet');
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const entry = fixtures.path('snapshot', 'dns-resolve.js');
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const env = {
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NODE_TEST_IP: INET4_IP,
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NODE_TEST_HOST: INET4_HOST,
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NODE_TEST_DNS: DNS4_SERVER,
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NODE_TEST_PROMISE: 'false',
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};
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tmpdir.refresh();
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function checkOutput(stderr, stdout) {
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assert(stdout.includes('hostnames: ['));
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assert(stdout.includes('addresses: ['));
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assert.strictEqual(stdout.trim().split('\n').length, 2);
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}
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{
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const { stderr, stdout } = buildSnapshot(entry, env);
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checkOutput(stderr, stdout);
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}
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{
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const { stderr, stdout } = runWithSnapshot(entry, env);
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checkOutput(stderr, stdout);
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}
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