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fix(eslint-plugin): [non-nullable-type-assertion-style] false-positive with non-nullish as assertions and types #3940

merged 2 commits into from Oct 3, 2021


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Fixes #3938.

As suggested there, a simple array length assertion did the trick. I added two regression test cases for this check.

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Thanks for the PR, @FloEdelmann!

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codecov bot commented Oct 1, 2021

Codecov Report

Merging #3940 (7d39d1d) into master (02c6ff3) will increase coverage by 0.81%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3940      +/-   ##
+ Coverage   92.70%   93.51%   +0.81%     
  Files         331      151     -180     
  Lines       11637     8145    -3492     
  Branches     3290     2583     -707     
- Hits        10788     7617    -3171     
+ Misses        371      167     -204     
+ Partials      478      361     -117     
Flag Coverage Δ
unittest 93.51% <100.00%> (+0.81%) ⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files Coverage Δ
...gin/src/rules/non-nullable-type-assertion-style.ts 100.00% <100.00%> (ø)
... and 171 more

@bradzacher bradzacher added the bug Something isn't working label Oct 3, 2021
@bradzacher bradzacher changed the title fix(eslint-plugin): false-positive in non-nullable-type-assertion-style fix(eslint-plugin): [non-nullable-type-assertion-style] false-positive with non-nullish as assertions and types Oct 3, 2021
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awesome! thanks for being a champion and fixing this!

@bradzacher bradzacher merged commit 40760f9 into typescript-eslint:master Oct 3, 2021
11 checks passed
@FloEdelmann FloEdelmann deleted the fix-type-assertion-style branch October 4, 2021 02:38
@github-actions github-actions bot locked as resolved and limited conversation to collaborators Nov 4, 2021
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bug Something isn't working
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Successfully merging this pull request may close these issues.

[non-nullable-type-assertion-style] wrong autofix for function calls with generic return value
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