test: try to reduce flakes on Windows by refack · Pull Request #28035 · nodejs/node

refack · 2019-06-02T21:02:48Z

test: always suffix tmpdir
This makes temp dir names consistent whether we run in stand-alone mode,
via test.py in single process, or in multi-process.
test: shell out to rmdir first on Windows
cmd's rmdir is hardened to deal with Windows edge cases, like
lingering processes, indexing, and AV checks. So we give it a try first.
test: regression test tmpdir

Checklist

make -j4 test (UNIX), or vcbuild test (Windows) passes
tests and/or benchmarks are included
documentation is changed or added
commit message follows commit guidelines

refack · 2019-06-02T21:04:07Z

/CC @nodejs/testing

mscdex · 2019-06-02T21:12:49Z

Shouldn't the subsystem prefix here just be test: ?

richardlau · 2019-06-02T21:23:13Z

Please could you add a brief sentence or two in the commit message as to why?

refack · 2019-06-02T21:23:32Z

Shouldn't the subsystem prefix here just be test: ?

Fixed.

refack · 2019-06-02T21:33:28Z

Please could you add a brief sentence or two in the commit message as to why?

Wrote some words. Didn't have anything too enlightening 🤷‍♂.
WRT to refresh() nothing is extremely robust, it's just a extra heuristic to overcome some recent failures seen in CI:

Trott

LGTM if CI is green and once info about opts is added to the tmpdir.refresh() entry in test/common/README.md.

Trott · 2019-06-03T01:49:56Z

@nodejs/platform-windows

BridgeAR

LGTM but it seems like on Windows it will now always try both ways, even though the folder might already be deleted by rmdir.

BridgeAR · 2019-06-04T11:37:28Z

If everything passes, should this not return?

Not totally sure why, but it's not trivial https://ci.nodejs.org/job/node-test-binary-windows-2/1275/

sam-github · 2019-06-05T16:41:07Z

Is this intended to fix failures like below?


c:\workspace\node-test-binary-windows-2\test\common\tmpdir.js:27
throw e;
^
Error: ENOTEMPTY: directory not empty, rmdir 'c:\workspace\node-test-binary-windows-2\test\.tmp.6'
at Object.rmdirSync (fs.js:693:3)
at rmdirSync (c:\workspace\node-test-binary-windows-2\test\common\tmpdir.js:48:10)
at rimrafSync (c:\workspace\node-test-binary-windows-2\test\common\tmpdir.js:18:7)
at Object.refresh (c:\workspace\node-test-binary-windows-2\test\common\tmpdir.js:66:3)
at Object.<anonymous> (c:\workspace\node-test-binary-windows-2\test\parallel\test-child-process-spawnsync-args.js:18:8)
at Module._compile (internal/modules/cjs/loader.js:777:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:788:10)
at Module.load (internal/modules/cjs/loader.js:640:32)
at Function.Module._load (internal/modules/cjs/loader.js:555:12)
at Function.Module.runMain (internal/modules/cjs/loader.js:840:10) {
errno: -4051,
syscall: 'rmdir',
code: 'ENOTEMPTY',
path: 'c:\\workspace\\node-test-binary-windows-2\\test\\.tmp.6'
}

https://ci.nodejs.org/job/node-test-binary-windows-2/1244/COMPILED_BY=vs2017,RUNNER=win2008r2-vs2017,RUN_SUBSET=0/testReport/junit/(root)/test/parallel_test_child_process_spawnsync_args/

refack · 2019-06-05T16:49:55Z

Is this intended to fix failures like below?

Exactly.

refack · 2019-06-05T17:22:39Z

@Trott added doc

@BridgeAR~~I wanted this to be best-effort with minimal change to current semantics.~~
had to rebase and fix some more stuff, so I added a return.

I'm going to land this to reduce flakes in CI, and I'll follow up with teaks.

Trott

LGTM with minor doc update to the function signature

nodejs-github-bot · 2019-06-06T23:23:27Z

CI: https://ci.nodejs.org/job/node-test-pull-request/23685/

cmd's `rmdir` is hardened to deal with Windows edge cases, like lingering processes, indexing, and AV checks. So we give it a try first. * Added `opts = { spawn = true }` to opt-out of spawning * test-pipeconnectwrap.js - spawning messes up async_hooks state PR-URL: nodejs#28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

This makes temp dir names consistent whether we run in stand-alone mode, via `test.py` in single process, or in multi-process. PR-URL: nodejs#28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

PR-URL: nodejs#28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

Also try to make more traceable. PR-URL: nodejs#28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

refack · 2019-06-06T23:51:35Z

landed in:
59f666c
9032ab4
2f8cf5e
65a5f7b

cmd's `rmdir` is hardened to deal with Windows edge cases, like lingering processes, indexing, and AV checks. So we give it a try first. * Added `opts = { spawn = true }` to opt-out of spawning * test-pipeconnectwrap.js - spawning messes up async_hooks state PR-URL: #28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

This makes temp dir names consistent whether we run in stand-alone mode, via `test.py` in single process, or in multi-process. PR-URL: #28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

PR-URL: #28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

Also try to make more traceable. PR-URL: #28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

refack requested a review from Trott June 2, 2019 21:02

refack self-assigned this Jun 2, 2019

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mscdex changed the title ~~test,lib: try rmdir first on windows~~test: try rmdir first on windowsJun 3, 2019

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refack added the test Issues and PRs related to the tests. label Jun 3, 2019

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refack changed the title ~~test: try rmdir first on windows~~test: try to reduce flakes on WindowsJun 5, 2019

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refack mentioned this pull request Jun 6, 2019
Investigate flaky parallel/test-worker-debug on Windows #28106
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refack added 4 commits June 6, 2019 19:38

test: regression test tmpdir
2f8cf5e
PR-URL: nodejs#28035 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

refack force-pushed the testutils-rmdir-first-on-windows branch from 60133a1 to 65a5f7bCompare June 6, 2019 23:39

refack merged commit 65a5f7b into nodejs:masterJun 6, 2019

refack deleted the testutils-rmdir-first-on-windows branch June 6, 2019 23:51

refack removed their assignment Jun 7, 2019

refack mentioned this pull request Jun 10, 2019
Windows CI failures #28152
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BridgeAR mentioned this pull request Jun 17, 2019
v12.5.0 proposal #28268
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