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chore: show enhanced syntax error for all syntax errors #10749

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merged 2 commits into from Nov 4, 2020
Merged

chore: show enhanced syntax error for all syntax errors #10749

merged 2 commits into from Nov 4, 2020

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SimenB
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@SimenB SimenB commented Oct 31, 2020 •
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Summary

#6275 added this helpful error message, but it doesn't trigger on e.g. TLA.

Master:
image

While with this PR the enhancement triggers

image

Test plan

See above

@thymikee
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Hm, we'd need to tweak the wording because now it's not only about imported files, but the message implies so.

@SimenB
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SimenB commented Oct 31, 2020

Hm, we'd need to tweak the wording because now it's not only about imported files, but the message implies so.

How so?

@thymikee
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The syntax error may happen in your test for example, which technically is imported by Jest, not a user.

I wonder if this is clearer? Let's keep in mind that this should be especially helpful for people not familiar with Jest transformers etc:

Syntax Error

Jest failed to parse a file. This happens e.g. when your code or its dependencies use a non-standard JavaScript syntax. Or when Jest is not configured to support such syntax. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on found Babel config.

By default "node_modules" folder is ignored from transformation.

Here's what you can do:

  • ...

@SimenB
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SimenB commented Oct 31, 2020

I like it! @orta @rickhanlonii @jeysal thoughts?

@rickhanlonii
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I love it!

@orta
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orta commented Nov 4, 2020

plus one, this is a solid win

@SimenB
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SimenB commented Nov 4, 2020

Pushed updated wording, slightly tweaking @thymikee's suggestion.

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thymikee
thymikee approved these changes Nov 4, 2020
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👍

@SimenB SimenB merged commit abaa556 into jestjs:master Nov 4, 2020
@SimenB SimenB deleted the show-syntax-error branch November 4, 2020 10:42
jeysal added a commit to mmkal/jest that referenced this pull request Nov 8, 2020
@jeysal
Merge branch 'master' into uglier-inline-snapshots
13c960e 
* master: (398 commits)
  chore(breaking): remove undocumented `enabledTestsMap` config (jestjs#10787)
  Change expect.not.objectContaining() to match documentation (jestjs#10708)
  chore: add name to root project (jestjs#10782)
  Added explanation on how to use custom @jest-environment to docs (jestjs#10783)
  fix: remove deprecated functions from the jest object (jestjs#9853)
  chore: convert jest-runtime to ESM (jestjs#10325)
  fix(resolve): use escalade to find package.json (jestjs#10781)
  feat(jest-runner): set exit code to 1 if test logs after teardown (jestjs#10728)
  chore: add `exports` field to all `package.json`s (jestjs#9921)
  fix: do not inject `global` variable into module wrapper (jestjs#10644)
  chore: migrate jest-resolve to ESM (jestjs#10688)
  chore(transform): refactor API to pass an options bag around rather than multiple boolean options (jestjs#10753)
  chore: default to node test env rather than browser (jestjs#9874)
  fix: drop support for node 13 (jestjs#10685)
  chore: show enhanced syntax error for all syntax errors (jestjs#10749)
  chore: update lockfile after publish
  v26.6.3
  chore: update changelog for release
  Don't throw an error if mock dependency can't be found (jestjs#10779)
  chore: bump babel core types (jestjs#10772)
  ...
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@thymikee thymikee thymikee approved these changes

@jeysal jeysal Awaiting requested review from jeysal

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@SimenB @thymikee @rickhanlonii @orta @facebook-github-bot