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test: fix timing sensitivity in debugger test #11008

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test: fix timing sensitivity in debugger test #11008

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ofrobots
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test-debugger-util-regression.js was sensitive to timing, which seems to have changed enough with V8 5.7 to cause this test to fail. Fix the test to ensure we take debugger steps only at stable states instead of erroneously taking a step on a partially complete buffer.

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • commit message follows commit guidelines
Affected core subsystem(s)

test

@nodejs-github-bot nodejs-github-bot added test Issues and PRs related to the tests. lts-watch-v6.x labels Jan 26, 2017
addaleax
addaleax approved these changes Jan 26, 2017
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LGTM if CI is happy

test/parallel/test-debugger-util-regression.js Outdated
@@ -4,6 +4,8 @@ const path = require('path');
const spawn = require('child_process').spawn;
const assert = require('assert');

const DELAY = 200; //ms.
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Is it worth wrapping this in common.platformTimeout?

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Yep. Good idea.

test/parallel/test-debugger-util-regression.js
@@ -21,12 +23,16 @@ proc.stderr.setEncoding('utf8');

let stdout = '';
let stderr = '';
proc.stdout.on('data', (data) => stdout += data);
proc.stderr.on('data', (data) => stderr += data);
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I think proc.stdout.setEncoding('utf-8') would be good practice here (and the same for proc.stderr)

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That's already there, a few lines above, unchanged by my patch.

@ofrobots
test: fix timing sensitivity in debugger test
8727dd8 
test-debugger-util-regression.js was sensitive to timing, which seems
to have changed enough with V8 5.7 to cause this test to fail. Fix the
test to ensure we take debugger steps only at stable states instead of
erroneously taking a step on a partially complete buffer.

PR-URL: nodejs#11008
Reviewed-By: addaleax - Anna Henningsen <anna@addaleax.net>
@ofrobots ofrobots force-pushed the test-util-debugger-regression branch from ae684b1 to 8727dd8 Compare January 26, 2017 06:13
jasnell pushed a commit that referenced this pull request Feb 2, 2017
@ofrobots @jasnell
test: fix timing sensitivity in debugger test
21b05cd 
test-debugger-util-regression.js was sensitive to timing, which seems
to have changed enough with V8 5.7 to cause this test to fail. Fix the
test to ensure we take debugger steps only at stable states instead of
erroneously taking a step on a partially complete buffer.

PR-URL: #11008
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@jasnell
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jasnell commented Feb 2, 2017

Landed in 21b05cd

@jasnell jasnell closed this Feb 2, 2017
italoacasas pushed a commit that referenced this pull request Feb 3, 2017
@ofrobots @italoacasas
test: fix timing sensitivity in debugger test
9b9d9fb 
test-debugger-util-regression.js was sensitive to timing, which seems
to have changed enough with V8 5.7 to cause this test to fail. Fix the
test to ensure we take debugger steps only at stable states instead of
erroneously taking a step on a partially complete buffer.

PR-URL: #11008
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@italoacasas italoacasas mentioned this pull request Feb 5, 2017
Merged
italoacasas pushed a commit to italoacasas/node that referenced this pull request Feb 14, 2017
@ofrobots @italoacasas
test: fix timing sensitivity in debugger test
cf3700b 
test-debugger-util-regression.js was sensitive to timing, which seems
to have changed enough with V8 5.7 to cause this test to fail. Fix the
test to ensure we take debugger steps only at stable states instead of
erroneously taking a step on a partially complete buffer.

PR-URL: nodejs#11008
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
krydos pushed a commit to krydos/node that referenced this pull request Feb 25, 2017
@ofrobots @krydos
test: fix timing sensitivity in debugger test
182673d 
test-debugger-util-regression.js was sensitive to timing, which seems
to have changed enough with V8 5.7 to cause this test to fail. Fix the
test to ensure we take debugger steps only at stable states instead of
erroneously taking a step on a partially complete buffer.

PR-URL: nodejs#11008
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
jasnell pushed a commit that referenced this pull request Mar 7, 2017
@ofrobots @jasnell
test: fix timing sensitivity in debugger test
e8f784e 
test-debugger-util-regression.js was sensitive to timing, which seems
to have changed enough with V8 5.7 to cause this test to fail. Fix the
test to ensure we take debugger steps only at stable states instead of
erroneously taking a step on a partially complete buffer.

PR-URL: #11008
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
MylesBorins pushed a commit that referenced this pull request Mar 9, 2017
@ofrobots @MylesBorins
test: fix timing sensitivity in debugger test
232664a 
test-debugger-util-regression.js was sensitive to timing, which seems
to have changed enough with V8 5.7 to cause this test to fail. Fix the
test to ensure we take debugger steps only at stable states instead of
erroneously taking a step on a partially complete buffer.

PR-URL: #11008
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@MylesBorins MylesBorins mentioned this pull request Mar 9, 2017
Merged
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@bnoordhuis bnoordhuis bnoordhuis approved these changes

@jasnell jasnell jasnell approved these changes

@addaleax addaleax addaleax approved these changes

@cjihrig cjihrig cjihrig approved these changes

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@ofrobots @jasnell @bnoordhuis @addaleax @cjihrig @mscdex @nodejs-github-bot