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Allow test titles to include array index #6414

Merged
merged 9 commits into from
Aug 8, 2018
Merged

Allow test titles to include array index #6414

merged 9 commits into from
Aug 8, 2018

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mfix22
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@mfix22 mfix22 commented Jun 7, 2018

Updates jest-each so that titles can include the index of the test case. I am not set by any means on the '%_' placeholder. Let me know if you would like to change the value of if this is already currently possible. I will update the README once this has been reviewed.

Summary

In the past I have always take the index from [].forEach((value, i) => {}) and passed it into the title for parameterized tests. This would make it simpler by integrating jest-each.

Test plan

Tests have been added 👍

expectFunction,
);
expect(globalMock).toHaveBeenCalledWith(
`expected string: world 1 null undefined 1.2 ${JSON.stringify({
baz: 'qux',
})} () => {} [] Infinity NaN`,
})} () => {} [] Infinity NaN 0`,
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I think this should be 1 as it’s the second row of test data

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@mfix22 mfix22 Jun 8, 2018

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🤦‍♂️ of course yeah! 😄

),
title: acc.title
.replace(PRETTY_PLACEHOLDER, pretty(arg, {maxDepth: 1, min: true}))
.replace(INDEX_PLACEHOLDER, `${index}`),
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This index represents the index of each arg in a row of data.

I think you want to use the index of each row in the outer table on line 32.

return table.forEach(row =>
  cb(arrayFormat(title, ...row), applyRestParams(row, test)),
);

@mfix22
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mfix22 commented Jun 8, 2018

@mattphillips thanks for the review 😃 ! Probably should have given that another look before pushing 🤷‍♂️ . I also made the place holder %# for the index. What do you think?

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mfix22 commented Jun 11, 2018

@mattphillips anything else I need to update here? 😃

),
title: acc.title
.replace(PRETTY_PLACEHOLDER, pretty(arg, {maxDepth: 1, min: true}))
.replace(INDEX_PLACEHOLDER, `${rowIndex}`),
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I think this and line 97 can move outside of the reduce and just do a replace on the prettyTitle returned before calling util.format on line 103.

Maybe something like:

return util.format(
    prettyTitle.replace(INDEX_PLACEHOLDER, rowIndex.toString()),
    ...remainingArgs.slice(0, placeholders.length - prettyIndexes.length),
  );

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@mfix22 anything preventing us from applying this solution? Seems more generic approach

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Oooh i missed this. I'll take a look.

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I think I prefer %# over %_ for the index 😄

@SimenB @thymikee @rickhanlonii do you guys have any opinion with this?

If not @mfix22 can you update the docs with %# as an option see:

It might also be worth adding an integration test for this in the e2e directory

@rickhanlonii
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Between the two I would prefer %# since _ already has a few meanings (like "private" and ignored values)

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codecov-io commented Jun 11, 2018

Codecov Report

Merging #6414 into master will increase coverage by <.01%.
The diff coverage is n/a.

Impacted file tree graph

@@            Coverage Diff             @@
##           master    #6414      +/-   ##
==========================================
+ Coverage   63.62%   63.63%   +<.01%     
==========================================
  Files         235      235              
  Lines        9018     9019       +1     
  Branches        4        3       -1     
==========================================
+ Hits         5738     5739       +1     
  Misses       3279     3279              
  Partials        1        1
Impacted Files Coverage Δ
packages/jest-each/src/bind.js 100% <ø> (ø) ⬆️

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mfix22 commented Jul 20, 2018

@mattphillips @rickhanlonii anything I need to do to get this PR merged?

@SimenB
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SimenB commented Jul 21, 2018

I completely missed this, sorry! Could you add an entry to the changelog?

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mfix22 commented Jul 22, 2018

@SimenB no worries! Let me know if there is anything else.

@mfix22
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mfix22 commented Jul 22, 2018

@thymikee @mattphillips thanks for catching that! That's a much better approach.

@thymikee thymikee merged commit b4b1eee into jestjs:master Aug 8, 2018
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mfix22 commented Aug 8, 2018

Woo!!! Thanks everyone!

@mfix22 mfix22 deleted the jest-each-index branch August 8, 2018 20:10
thymikee added a commit to rhysawilliams2010/jest that referenced this pull request Aug 8, 2018
* upstream/master: (122 commits)
  fix: don't report promises as open handles (jestjs#6716)
  support serializing `DocumentFragment` (jestjs#6705)
  Allow test titles to include array index (jestjs#6414)
  fix `toContain` suggest to contain equal message (jestjs#6810)
  fix: testMatch not working with negations (jestjs#6648)
  Add test cases for jestjs#6744 (jestjs#6772)
  print stack trace on calls to process.exit (jestjs#6714)
  Updates SnapshotTesting.md to provide more info. on snapshot scope (jestjs#6735)
  Mark snapshots as obsolete when moved to an inline snapshot (jestjs#6773)
  [Docs] Clarified the use of literal values as property matchers in toMatchSnapshot() (jestjs#6807)
  Update CHANGELOG.md (jestjs#6799)
  fix changelog entry that is not in 23.4.2 (jestjs#6796)
  Fix --coverage with --findRelatedTests overwriting collectCoverageFrom options (jestjs#6736)
  Update testURL default value from about:blank to localhost (jestjs#6792)
  fix: `matchInlineSnapshot` when prettier dependencies are mocked (jestjs#6776)
  Fix retryTimes and add e2e regression test (jestjs#6762)
  Release v23.4.2
  Docs/ExpectAPI: Correct docs for `objectContaining` (jestjs#6754)
  chore(packages/babel-jest) readme (jestjs#6746)
  docs: noted --coverage aliased by --collectCoverage (jestjs#6741)
  ...
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