Added "key" prop to list items inside test failure message. #2867
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Hypnosphi
added
bug
addon: jest
patch:yes
Hypnosphi
reviewed
Feb 1, 2018
addons/jest/src/components/Result.js
Outdated
| .trim() | ||
| .split(/\n/) | ||
| .map(i => <div>{i.trim()}</div>)} | ||
| .map(traceLine, traceLineIndex => <div key={traceLineIndex}>{traceLine.trim()}</div>)} |
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Is there a chance we can use something other than index as a key? Otherwise, I think you can suppress the corresponding eslint rule for this line
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I'd like to use something else for the key prop but can't find any reasonable alternatives. I will add the ESLint rule.
Codecov Report
@@ Coverage Diff @@
## master #2867 +/- ##
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Coverage ? 37.37%
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Files ? 426
Lines ? 9157
Branches ? 848
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Hits ? 3422
Misses ? 5234
Partials ? 501
Continue to review full report at Codecov.
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Hypnosphi
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Feb 2, 2018
shilman
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Feb 21, 2018
Added "key" prop to list items inside test failure message.
Hypnosphi
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ghost
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yannbf
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Issue:
React complains about missing "key" prop in lists displaying a failed Jest test.
What I did
Added "key" prop equal the list element's index on the list.
How to test
Create a failing Jest test, let jest output results to a JSON file and have that file load be loaded by Storybook's Jest addon.
Is this testable with jest or storyshots?
Jest's output JSON file containing information about a failed test is required.
Does this need a new example in the kitchen sink apps?
No
Does this need an update to the documentation?
No
If your answer is yes to any of these, please make sure to include it in your PR.