Diffing crashes app when comparing HTML Elements

[davidtheclark]

I'm trying to compare HTML Elements in an assertion. When the assertion passes, everything is fine. But when it fails — one element does not in fact equal the other — Jest crashes.

This behavior suggests to me that the bug is somewhere in the code that diffs or stringifies the diff. However, I'm having trouble finding anything more specific to point to because I don't end up with a full stack trace, just a crashed app (after a little wait) with a little hint pointing at pretty-format.

<--- Last few GCs --->

   59728 ms: Mark-sweep 1395.0 (1450.4) -> 1394.8 (1450.4) MB, 347.5 / 0 ms [allocation failure] [GC in old space requested].
   60078 ms: Mark-sweep 1394.8 (1450.4) -> 1394.8 (1450.4) MB, 349.6 / 0 ms [allocation failure] [GC in old space requested].
   60426 ms: Mark-sweep 1394.8 (1450.4) -> 1394.8 (1450.4) MB, 348.0 / 0 ms [last resort gc].
   60746 ms: Mark-sweep 1394.8 (1450.4) -> 1394.8 (1450.4) MB, 320.1 / 0 ms [last resort gc].


<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x21cab14b4629 <JS Object>
    2: printBasicValue(aka printBasicValue) [/Users/davidclark/dev/tabbable/node_modules/jest/node_modules/jest-cli/node_modules/jest-jasmine2/node_modules/jest-matchers/node_modules/jest-diff/node_modules/pretty-format/index.js:~57] [pc=0x32e39fb2a42d] (this=0x21cab14041b9 <undefined>,val=0x2571761dc9e9 <JS Function HTMLBaseElement (SharedFunctionInfo 0x2589a3f52e79)>,printFunctionName=0x21cab...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory
[1]    5926 abort      npm run jest

[davidtheclark]

I created an issue in pretty-format about this: https://github.com/thejameskyle/pretty-format/issues/44.

[gaearon]

Seems like same issue as #1772?

[davidtheclark]

@gaearon Yes, probably! Closing.

[github-actions]

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