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feat(jest-haste-map): support dependencyExtractor written in ESM #12008

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merged 9 commits into from Feb 24, 2022

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chentsulin
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Summary

Part of #11167.

See the discussion on the dependencyExtractor config: #11167 (comment)

Test plan

  • Integration test added.
  • Converted new HasteMap(...) calls to await HasteMap.create(...)
  • Converted Runtime.createHasteMap(...) calls to await Runtime.createHasteMap(...)

@@ -230,12 +231,16 @@ export default class HasteMap extends EventEmitter {
return HasteMap;
}

static create(options: Options): HasteMap {
static async create(options: Options): Promise<HasteMap> {
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code in general looks good, but this makes it a breaking change and must wait for Jest 28 🙂 I'll add it to the milestone so we don't forget

@SimenB SimenB added this to the Jest 28 milestone Oct 28, 2021
@chentsulin chentsulin force-pushed the import-dependencyExtractor branch 3 times, most recently from 8cce621 to f59420e Compare October 28, 2021 11:36
'a.js': 'module.exports = {foo: 5};',
'dependencyExtractor.mjs': `
const DYNAMIC_IMPORT_RE = /(?:^|[^.]\\s*)(\\bdynamicImport\\s*?\\(\\s*?)([\`'"])([^\`'"]+)(\\2\\s*?\\))/g;
export function extract(code, filePath) {
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I am not quite sure we should accept extract named export or a default export here.

named export:

export function extract(code, filePath) {
  const dependencies = new Set();
  if (filePath.includes('skip-deps')) {
    return dependencies;
  }
  const addDependency = (match, pre, quot, dep, post) => {
    dependencies.add(dep);
    return match;
  };
  code.replace(DYNAMIC_IMPORT_RE, addDependency);
  return dependencies;
};

default export:

export default {
  extract(code, filePath) {
    const dependencies = new Set();
    if (filePath.includes('skip-deps')) {
      return dependencies;
    }
    const addDependency = (match, pre, quot, dep, post) => {
      dependencies.add(dep);
      return match;
    };
    code.replace(DYNAMIC_IMPORT_RE, addDependency);
    return dependencies;
  }
}

@chentsulin chentsulin force-pushed the import-dependencyExtractor branch 2 times, most recently from 2030f21 to 7c30268 Compare October 30, 2021 14:15
@SimenB
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SimenB commented Feb 10, 2022

Hey! I've started to land breaking changes, so if you rebase this we can see where we're at? 🙂

@chentsulin
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Ok. I've done the rebase.

@SimenB
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SimenB commented Feb 17, 2022

Awesome, thanks! I think I've commented on the two open questions?

@chentsulin chentsulin force-pushed the import-dependencyExtractor branch 2 times, most recently from e9abd9f to e2325bc Compare February 23, 2022 15:58
Co-authored-by: Simen Bekkhus <sbekkhus91@gmail.com>
@@ -116,6 +116,56 @@ describe('--findRelatedTests flag', () => {
expect(stderr).toMatch(summaryMsg);
});

test('runs tests related to filename with a custom dependency extractor written in ESM', () => {
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@SimenB I am not sure if this is a valid e2e test of ESM dependency extractor. I just found a commonjs version above and did the same against ESM.

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that's fine 👍

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thanks!

@SimenB SimenB changed the title feat(jest-haste-map): support dependencyExtractor written in ESM feat(jest-haste-map): support dependencyExtractor written in ESM Feb 24, 2022
@SimenB SimenB merged commit ee31422 into jestjs:main Feb 24, 2022
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3 participants