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test: fix flaky test-trace-sigint-on-idle #31645

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test: fix flaky test-trace-sigint-on-idle #31645

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addaleax
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@addaleax addaleax commented Feb 5, 2020

Previously, the test could fail on slow machines because the
child process was still in the process of starting up after
one second, and not yet idle.

To resolve this:

  • Wait for a message from the child process indicating that it
    had started.
  • Wait some time after that, but make it platform-dependent to
    account for timing differences.
  • Remove the timer in the child process.

Example failure: https://ci.nodejs.org/job/node-test-binary-arm-12+/4163/RUN_SUBSET=0,label=pi2-docker/testReport/junit/(root)/test/pseudo_tty_test_trace_sigint_on_idle/

KEYBOARD_INTERRUPT: Script execution was interrupted by `SIGINT`
    at URL (internal/url.js:333:63)
    at pathToFileURL (internal/url.js:1383:18)
    at Module.load (internal/modules/cjs/loader.js:1061:18)
    at Module._load (internal/modules/cjs/loader.js:952:14)
    at executeUserEntryPoint (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47
Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines

@addaleax
test: fix flaky test-trace-sigint-on-idle
6cdec13 
Previously, the test could fail on slow machines because the
child process was still in the process of starting up after
one second, and not yet idle.

To resolve this:
- Wait for a message from the child process indicating that it
  had started.
- Wait some time after that, but make it platform-dependent to
  account for timing differences.
- Remove the timer in the child process.
@nodejs-github-bot nodejs-github-bot added test Issues and PRs related to the tests. tty Issues and PRs related to the tty subsystem. labels Feb 5, 2020
@addaleax addaleax added the flaky-test Issues and PRs related to the tests with unstable failures on the CI. label Feb 5, 2020
@addaleax addaleax added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Feb 7, 2020
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CI: https://ci.nodejs.org/job/node-test-pull-request/28974/

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CI: https://ci.nodejs.org/job/node-test-pull-request/29002/

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CI: https://ci.nodejs.org/job/node-test-pull-request/29052/

addaleax added a commit that referenced this pull request Feb 9, 2020
@addaleax
test: fix flaky test-trace-sigint-on-idle
0649225 
Previously, the test could fail on slow machines because the
child process was still in the process of starting up after
one second, and not yet idle.

To resolve this:
- Wait for a message from the child process indicating that it
  had started.
- Wait some time after that, but make it platform-dependent to
  account for timing differences.
- Remove the timer in the child process.

PR-URL: #31645
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
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addaleax commented Feb 9, 2020

Landed in 0649225

@addaleax addaleax closed this Feb 9, 2020
@addaleax addaleax deleted the fix-test-trace-sigint-on-idle branch February 9, 2020 21:16
codebytere pushed a commit that referenced this pull request Feb 17, 2020
@addaleax @codebytere
test: fix flaky test-trace-sigint-on-idle
b0e37b7 
Previously, the test could fail on slow machines because the
child process was still in the process of starting up after
one second, and not yet idle.

To resolve this:
- Wait for a message from the child process indicating that it
  had started.
- Wait some time after that, but make it platform-dependent to
  account for timing differences.
- Remove the timer in the child process.

PR-URL: #31645
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
@codebytere codebytere mentioned this pull request Feb 17, 2020
Merged
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targos commented Apr 18, 2020

depends on #29207 to land on v12.x

@targos targos removed author ready PRs that have at least one approval, no pending requests for changes, and a CI started. backport-blocked-v12.x labels Apr 25, 2020
targos pushed a commit to targos/node that referenced this pull request Apr 25, 2020
@addaleax @targos
test: fix flaky test-trace-sigint-on-idle
2b9cc8d 
Previously, the test could fail on slow machines because the
child process was still in the process of starting up after
one second, and not yet idle.

To resolve this:
- Wait for a message from the child process indicating that it
  had started.
- Wait some time after that, but make it platform-dependent to
  account for timing differences.
- Remove the timer in the child process.

PR-URL: nodejs#31645
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
targos pushed a commit that referenced this pull request Apr 28, 2020
@addaleax @targos
test: fix flaky test-trace-sigint-on-idle
2fc72ca 
Previously, the test could fail on slow machines because the
child process was still in the process of starting up after
one second, and not yet idle.

To resolve this:
- Wait for a message from the child process indicating that it
  had started.
- Wait some time after that, but make it platform-dependent to
  account for timing differences.
- Remove the timer in the child process.

PR-URL: #31645
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
@targos targos mentioned this pull request May 2, 2020
Merged
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@jasnell jasnell jasnell approved these changes

@Trott Trott Trott approved these changes

@lpinca lpinca lpinca approved these changes

@cjihrig cjihrig cjihrig approved these changes

@richardlau richardlau richardlau approved these changes

@BridgeAR BridgeAR BridgeAR approved these changes

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