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Add error context if timers are infinite looped #4626

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Add error context if timers are infinite looped #4626

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c59bd2d
Add context functionality for infinite looped timers
DeFuex Oct 7, 2017
a829147
Fix small issue
DeFuex Oct 7, 2017
00189e8
Fix error in map
DeFuex Oct 7, 2017
0ece0e9
Revert yarn.lock changes
SimenB Oct 8, 2017
0c4b2c8
Fix styling errors
SimenB Oct 8, 2017
ec17d52
Add timers and return of iteration
DeFuex Oct 8, 2017
80cba31
Add explicit casts for flow type check
DeFuex Oct 8, 2017
2754435
Change object iteration
DeFuex Oct 12, 2017
eae4426
Merge branch 'master' into feature/context-on-infinite-timer-recursion
DeFuex Oct 12, 2017
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26 changes: 25 additions & 1 deletion packages/jest-util/src/fake_timers.js
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Original file line number Diff line number Diff line change
Expand Up @@ -239,11 +239,35 @@ export default class FakeTimers<TimerRef> {
}

if (i === this._maxLoops) {
const timers = this._timers;
const timeNow = this._now;
const timeout = this._global.setTimeout;
const immediate = this._global.setImmediate;
throw new Error(
'Ran ' +
this._maxLoops +
' timers, and there are still more! ' +
"Assuming we've hit an infinite recursion and bailing out...",
"Assuming we've hit an infinite recursion and bailing out." +
'The following timers are still pending:' +
Object.keys(timers)
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@SimenB SimenB Oct 8, 2017 •
edited
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timers is not defined, and the syntax below is weird.

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i know, im not sure if im doing this the right way, but i want to get the timers and then want to get only pending timers and output the stacktrace information for each specifically with map const timers = Object.assign({}, this._timers);

.sort((left, right) => timers[left].expiry - timers[right].expiry)
.map((key, index) => {
return (
'\n\nsetTimeout - pending timer time ' +
String(Number(timers[key].expiry) - timeNow) +
'\n' +
formatStackTrace(new Error().stack, timeout, {
noStackTrace: false,
}) +
'\n\nsetImmediate - pending timer time ' +
String(Number(timers[key].expiry) - timeNow) +
'\n' +
formatStackTrace(new Error().stack, immediate, {
noStackTrace: false,
})
);
})
.join(''),
);
}
}
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29 changes: 14 additions & 15 deletions yarn.lock
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Original file line number Diff line number Diff line change
Expand Up @@ -2440,8 +2440,8 @@ evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
safe-buffer "^5.1.1"

exec-sh@^0.2.0:
version "0.2.0"
resolved "https://registry.yarnpkg.com/exec-sh/-/exec-sh-0.2.0.tgz#14f75de3f20d286ef933099b2ce50a90359cef10"
version "0.2.1"
resolved "https://registry.yarnpkg.com/exec-sh/-/exec-sh-0.2.1.tgz#163b98a6e89e6b65b47c2a28d215bc1f63989c38"
dependencies:
merge "^1.1.3"

Expand Down Expand Up @@ -4139,7 +4139,7 @@ minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
dependencies:
brace-expansion "^1.1.7"

minimist@0.0.8:
minimist@0.0.8, minimist@~0.0.1:
version "0.0.8"
resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"

Expand All @@ -4151,10 +4151,6 @@ minimist@^0.1.0:
version "0.1.0"
resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.1.0.tgz#99df657a52574c21c9057497df742790b2b4c0de"

minimist@~0.0.1:
version "0.0.10"
resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"

mkdirp@0.5.1, "mkdirp@>=0.5 0", mkdirp@^0.5.1, mkdirp@~0.5.0:
version "0.5.1"
resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
Expand Down Expand Up @@ -5213,16 +5209,16 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0,
resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"

sane@^2.0.0:
version "2.0.0"
resolved "https://registry.yarnpkg.com/sane/-/sane-2.0.0.tgz#99cb79f21f4a53a69d4d0cd957c2db04024b8eb2"
version "2.2.0"
resolved "https://registry.yarnpkg.com/sane/-/sane-2.2.0.tgz#d6d2e2fcab00e3d283c93b912b7c3a20846f1d56"
dependencies:
anymatch "^1.3.0"
exec-sh "^0.2.0"
fb-watchman "^2.0.0"
minimatch "^3.0.2"
minimist "^1.1.1"
walker "~1.0.5"
watch "~0.10.0"
watch "~0.18.0"
optionalDependencies:
fsevents "^1.1.1"

Expand Down Expand Up @@ -5950,9 +5946,12 @@ walker@~1.0.5:
dependencies:
makeerror "1.0.x"

watch@~0.10.0:
version "0.10.0"
resolved "https://registry.yarnpkg.com/watch/-/watch-0.10.0.tgz#77798b2da0f9910d595f1ace5b0c2258521f21dc"
watch@~0.18.0:
version "0.18.0"
resolved "https://registry.yarnpkg.com/watch/-/watch-0.18.0.tgz#28095476c6df7c90c963138990c0a5423eb4b986"
dependencies:
exec-sh "^0.2.0"
minimist "^1.2.0"

watchify@^3.9.0:
version "3.9.0"
Expand Down Expand Up @@ -6168,8 +6167,8 @@ yargs@^8.0.2:
yargs-parser "^7.0.0"

yargs@^9.0.0:
version "9.0.0"
resolved "https://registry.yarnpkg.com/yargs/-/yargs-9.0.0.tgz#efe5b1ad3f94bdc20423411b90628eeec0b25f3c"
version "9.0.1"
resolved "https://registry.yarnpkg.com/yargs/-/yargs-9.0.1.tgz#52acc23feecac34042078ee78c0c007f5085db4c"
dependencies:
camelcase "^4.1.0"
cliui "^3.2.0"
Expand Down