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test: fix test-dns-idna2008 #33367

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Trott merged 1 commit into from
May 15, 2020
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test: fix test-dns-idna2008 #33367

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test: fix test-dns-idna2008 
The DNS server will sometimes return an IPv6 address (as seen in nightly
CI from time to time). Use `family` option to force IPv4.

PR-URL: #33367
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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@Trott
Trott committed May 15, 2020
commit 23a61eb683bcfb147ca1040e36c70fe366452a77
44 changes: 25 additions & 19 deletions test/internet/test-dns-idna2008.js
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Original file line number Diff line number Diff line change
Expand Up @@ -16,31 +16,37 @@ const { addresses } = require('../common/internet');
const fixture = {
hostname: 'straße.de',
expectedAddress: '81.169.145.78',
dnsServer: addresses.DNS4_SERVER
dnsServer: addresses.DNS4_SERVER,
family: 4,
};

// Explicitly use well behaved DNS servers that are known to be able to resolve
// Explicitly use well-behaved DNS servers that are known to be able to resolve
// the query (which is a.k.a xn--strae-oqa.de).
dns.setServers([fixture.dnsServer]);

dns.lookup(fixture.hostname, mustCall((err, address) => {
if (err && err.errno === 'ESERVFAIL') {
assert.ok(err.message.includes('queryA ESERVFAIL straße.de'));
return;
}
assert.ifError(err);
assert.strictEqual(address, fixture.expectedAddress);
}));
dns.lookup(
fixture.hostname,
{ family: fixture.family },
mustCall((err, address) => {
if (err && err.errno === 'ESERVFAIL') {
assert.ok(err.message.includes('queryA ESERVFAIL straße.de'));
return;
}
assert.ifError(err);
assert.strictEqual(address, fixture.expectedAddress);
})
);

dns.promises.lookup(fixture.hostname).then(({ address }) => {
assert.strictEqual(address, fixture.expectedAddress);
}, (err) => {
if (err && err.errno === 'ESERVFAIL') {
assert.ok(err.message.includes('queryA ESERVFAIL straße.de'));
} else {
throw err;
}
}).finally(mustCall());
dns.promises.lookup(fixture.hostname, { family: fixture.family })
.then(({ address }) => {
assert.strictEqual(address, fixture.expectedAddress);
}, (err) => {
if (err && err.errno === 'ESERVFAIL') {
assert.ok(err.message.includes('queryA ESERVFAIL straße.de'));
} else {
throw err;
}
}).finally(mustCall());

dns.resolve4(fixture.hostname, mustCall((err, addresses) => {
if (err && err.errno === 'ESERVFAIL') {
Expand Down