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test: fix flaky http-chunk-extensions-limit test #51943

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merged 1 commit into from
Mar 3, 2024
+30 −25
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test: fix flaky http-chunk-extensions-limit test #51943

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55 changes: 30 additions & 25 deletions test/parallel/test-http-chunk-extensions-limit.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,11 @@ const http = require('http');
const net = require('net');
const assert = require('assert');

// The maximum http chunk extension size is set in `src/node_http_parser.cc`.
// These tests assert that once the extension size is reached, an HTTP 413
// response is returned.
// Currently, the max size is set to 16KiB (16384).

// Verify that chunk extensions are limited in size when sent all together.
{
const server = http.createServer((req, res) => {
Expand All @@ -17,7 +22,8 @@ const assert = require('assert');
});

server.listen(0, () => {
const sock = net.connect(server.address().port);
const port = server.address().port;
const sock = net.connect(port);
let data = '';

sock.on('data', (chunk) => data += chunk.toString('utf-8'));
Expand All @@ -29,15 +35,17 @@ const assert = require('assert');

sock.end('' +
'GET / HTTP/1.1\r\n' +
'Host: localhost:8080\r\n' +
`Host: localhost:${port}\r\n` +
'Transfer-Encoding: chunked\r\n\r\n' +
'2;' + 'A'.repeat(20000) + '=bar\r\nAA\r\n' +
'0\r\n\r\n'
'2;' + 'a'.repeat(17000) + '\r\n' + // Chunk size + chunk ext + CRLF
'AA\r\n' + // Chunk data
'0\r\n' + // Last chunk
'\r\n' // End of http message
);
});
}

// Verify that chunk extensions are limited in size when sent in intervals.
// Verify that chunk extensions are limited in size when sent in parts
{
const server = http.createServer((req, res) => {
req.on('end', () => {
Expand All @@ -49,24 +57,10 @@ const assert = require('assert');
});

server.listen(0, () => {
const sock = net.connect(server.address().port);
let remaining = 20000;
const port = server.address().port;
const sock = net.connect(port);
let data = '';

const interval = setInterval(
() => {
if (remaining > 0) {
sock.write('A'.repeat(1000));
} else {
sock.write('=bar\r\nAA\r\n0\r\n\r\n');
clearInterval(interval);
}

remaining -= 1000;
},
common.platformTimeout(20),
).unref();

sock.on('data', (chunk) => data += chunk.toString('utf-8'));

sock.on('end', common.mustCall(function() {
Expand All @@ -76,10 +70,20 @@ const assert = require('assert');

sock.write('' +
'GET / HTTP/1.1\r\n' +
'Host: localhost:8080\r\n' +
`Host: localhost:${port}\r\n` +
'Transfer-Encoding: chunked\r\n\r\n' +
'2;'
'2;' // Chunk size + start of chunk-extension
);

sock.write('A'.repeat(8500)); // Write half of the chunk-extension

queueMicrotask(() => {
sock.write('A'.repeat(8500) + '\r\n' + // Remaining half of the chunk-extension
'AA\r\n' + // Chunk data
'0\r\n' + // Last chunk
'\r\n' // End of http message
);
});
});
}

Expand All @@ -95,7 +99,8 @@ const assert = require('assert');
});

server.listen(0, () => {
const sock = net.connect(server.address().port);
const port = server.address().port;
const sock = net.connect(port);
let data = '';

sock.on('data', (chunk) => data += chunk.toString('utf-8'));
Expand All @@ -120,7 +125,7 @@ const assert = require('assert');

sock.end('' +
'GET / HTTP/1.1\r\n' +
'Host: localhost:8080\r\n' +
`Host: localhost:${port}\r\n` +
'Transfer-Encoding: chunked\r\n\r\n' +
'2;' + 'A'.repeat(10000) + '=bar\r\nAA\r\n' +
'2;' + 'A'.repeat(10000) + '=bar\r\nAA\r\n' +
Expand Down