https://github.com/fbartho/jest-snapshot-custom-paths-bug-reproduction

[Fixed!] Reproduction for https://github.com/facebook/jest/issues/7257
https://github.com/fbartho/jest-snapshot-custom-paths-bug-reproduction

bug-repro bug-reproduction jest snapshot-testing snapshots

Last synced: 15 days ago
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[Fixed!] Reproduction for https://github.com/facebook/jest/issues/7257

• Host: GitHub
• URL: https://github.com/fbartho/jest-snapshot-custom-paths-bug-reproduction
• Owner: fbartho
• Created: 2018-11-06T21:03:53.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2018-11-11T23:01:47.000Z (almost 6 years ago)
• Last Synced: 2024-10-10T17:09:41.235Z (28 days ago)
• Topics: bug-repro, bug-reproduction, jest, snapshot-testing, snapshots
• Language: JavaScript
• Homepage:
• Size: 193 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Bug Demonstration - Custom Snapshot Resolver

**Repo Now Defunct, as fix was found!**

The purpose of this repo is to reproduce the issue described here [[jest-snapshot] Custom Snapshot Directories confuse the Obsolete Snapshot Logger #7257](https://github.com/facebook/jest/issues/7257)

## Reproduction steps

1. clone this repo

2. `yarn install`

3. Run the tests:

```shell

$ yarn test

yarn run v1.12.1

$ cp -R src/ dist; jest

 PASS  dist/__tests__/Link.react.test.js

  ✓ Link changes the class when hovered (18ms)

Snapshot Summary

 › 2 snapshot files obsolete from 2 test suites. To remove them all, run `yarn test -u`.

Test Suites: 1 passed, 1 total

Tests:       1 passed, 1 total

Snapshots:   2 files obsolete, 3 passed, 3 total

Time:        1.264s

Ran all test suites.

error Command failed with exit code 1.

info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.yarn test`

```

4. Notice: the tests pass, but also it says there are `2 snapshot files obsolete`. If you subsequently run `yarn test -u` it will delete these files, and then running yarn test again, will re-create them, then running `yarn test` again will once again declare that 2 snapshot files are obsolete.

### Expected behavior

I would expect it to not consider these files obsolete, and to not have this toggling behavior of deleting & recreating all the snapshots.

## Key Notes

- Pretends it's using a pre-processor/separate compile phase like `tsc` by copying the files into `dist/` before running the tests against the `dist/` directory