parallel/test-http-pipeline-flood being flaky

[gibfahn]

• Version: 6.11.4.0
• Platform: Windows server 2012 and 2016
• Subsystem: test

Haven't seen this in CI, but I see it on our Windows boxes all the time.

not ok 550 parallel/test-http-pipeline-flood
 ---
 duration_ms: 0.718
 severity: fail
 stack: |-
 
 assert.js:80
 throw new assert.AssertionError({
 ^
 AssertionError: Unexpected data received
 at fail (c:\build\jenkins-new\v6tstwin\x64node\node\test\common\index.js:477:10)
 at Socket.mustNotCall (c:\build\jenkins-new\v6tstwin\x64node\node\test\common\index.js:483:5)
 at emitOne (events.js:101:20)
 at Socket.emit (events.js:188:7)
 at readableAddChunk (_stream_readable.js:176:18)
 at Socket.Readable.push (_stream_readable.js:134:10)
 at TCP.onread (net.js:547:20)
 ...

Example log from when it fails:

backloggedReqs: 1238
res: ServerResponse {
 domain: null,
 _events: { finish: [Function: resOnFinish] },
 _eventsCount: 1,
 _maxListeners: undefined,
 output: [],
 outputEncodings: [],
 outputCallbacks: [],
 outputSize: 0,
 writable: true,
 _last: false,
 upgrading: false,
 chunkedEncoding: false,
 shouldKeepAlive: true,
 useChunkedEncodingByDefault: true,
 sendDate: true,
 _removedHeader: { ‘content-length’: false },
 _contentLength: null,
 _hasBody: true,
 _trailer: ‘’,
 finished: true,
 _headerSent: true,
 socket: null,
 connection: null,
 _header: ‘HTTP/1.1 200 OK\r\ncontent-length: 10240\r\nDate: Wed, 18 Oct 2017 16:03:38 GMT\r\nConnection: keep-alive\r\n\r\n’,
 _headers: { ‘content-length’: 10240 },
 _headerNames: { ‘content-length’: ‘content-length’ },
 _onPendingData: [Function: updateOutgoingData],
 statusMessage: ‘OK’,
 statusCode: 200 }

[gibfahn]

Previously #6450, but that was in theory fixed.

[BridgeAR]

I saw something similar on the CI. It was a different error but the test itself seems flaky, so I decided to just add it to this issue.

https://ci.nodejs.org/job/node-test-pull-request/12065/

not ok 795 parallel/test-http-pipeline-flood
 ---
 duration_ms: 2.673
 severity: fail
 stack: |-
 Mismatched <anonymous> function calls. Expected exactly 1, actual 2.
 at Object.exports.mustCall (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/test/common/index.js:497:10)
 at Server.<anonymous> (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/test/parallel/test-http-pipeline-flood.js:59:35)
 at Object.onceWrapper (events.js:218:13)
 at Server.emit (events.js:126:13)
 at emitListeningNT (net.js:1397:10)
 at process._tickCallback (internal/process/next_tick.js:152:19)
 at Function.Module.runMain (module.js:703:11)
 at startup (bootstrap_node.js:195:16)
 at bootstrap_node.js:646:3
 ...

[BridgeAR]

Fixed by #17955