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test: deflake connection refused proxy tests

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Use 127.0.0.1:10, matching existing refused-connection tests, instead
of binding and releasing an ephemeral port that can be reused before
the child process connects.

Clear NO_PROXY and no_proxy so local proxy bypass settings do not skip
the proxy connection attempt.

Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com>
Assisted-by: openai:gpt-5.5
PR-URL: https://github.com/nodejs/node/pull/63395
Refs: https://github.com/nodejs/reliability/blob/main/reports/2026-05-15.md#jstest-failure
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
This commit is contained in:
Trivikram Kamat authored and GitHub committed 2026-05-20 00:15:34 +00:00
1 parent 0c7034f5ae
commit f8685431d3
2 files changed
+23 -54
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test/client-proxy/test-https-proxy-request-connection-refused.mjs
+12 -28
View File
@@ -5,7 +5,6 @@ import fixtures from '../common/fixtures.js';
import assert from 'node:assert';
import { once } from 'events';
import { runProxiedRequest } from '../common/proxy-server.js';
import http from 'node:http';
if (!common.hasCrypto)
common.skip('missing crypto');
@@ -25,35 +24,20 @@ await once(server, 'listening');
const serverHost = `localhost:${server.address().port}`;
const requestUrl = `https://${serverHost}/test`;
let maxRetries = 10;
let foundRefused = false;
while (maxRetries-- > 0) {
// Make it fail on connection refused by connecting to a port of a closed server.
// If it succeeds, get a different port and retry.
const proxy = http.createServer((req, res) => {
res.destroy();
});
proxy.listen(0);
await once(proxy, 'listening');
const port = proxy.address().port;
proxy.close();
await once(proxy, 'close');
const port = 10;
console.log(`Trying proxy at port ${port}`);
const { stderr } = await runProxiedRequest({
NODE_USE_ENV_PROXY: 1,
REQUEST_URL: requestUrl,
HTTPS_PROXY: `http://127.0.0.1:${port}`,
NO_PROXY: '',
no_proxy: '',
NODE_EXTRA_CA_CERTS: fixtures.path('keys', 'fake-startcom-root-cert.pem'),
REQUEST_TIMEOUT: 5000,
});
console.log(`Trying proxy at port ${port}`);
const { stderr } = await runProxiedRequest({
NODE_USE_ENV_PROXY: 1,
REQUEST_URL: requestUrl,
HTTPS_PROXY: `http://localhost:${port}`,
NODE_EXTRA_CA_CERTS: fixtures.path('keys', 'fake-startcom-root-cert.pem'),
REQUEST_TIMEOUT: 5000,
});
foundRefused = /Error.*connect ECONNREFUSED/.test(stderr);
if (foundRefused) {
// The proxy client should get a connection refused error.
break;
}
}
foundRefused = /Error.*connect ECONNREFUSED/.test(stderr);
server.close();
assert(foundRefused, 'Expected ECONNREFUSED error from proxy request');