File paths shouldn't be reported with backslashes

[JoshuaKGoldberg]

🐛 Bug Report

On Windows, file paths in tests reports on the CLI are reported using backslashes (likely from the default path.join):

$ jest
 FAIL  src\my\directory\File.test.ts
    MyContents
      ...

That's inconvenient because you can't run jest <path-to-file> to run just that file.

• ✔ works: jest src/my/directory/File.test.ts
• ❌ no matches: jest src\my\directory\File.test.ts

To Reproduce

Steps to reproduce the behavior:

1. Create a test file within a directory
2. On Windows, run jest or any flags variant that runs that file
3. Copy & paste the file contents from the reporter as a matcher to jest on the CLI
4. Observe no matches

Expected behavior

Less proliferation of the inconvenience that is the backslash!

Run npx envinfo --preset jest

Paste the results here:

 System:
    OS: Windows 10
    CPU: x64 Intel(R) Core(TM) i7-7660U CPU @ 2.50GHz
  Binaries:
    Yarn: 1.5.1 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
    npm: 3.10.10 - C:\Code\WebClient\node_modules\.bin\npm.CMD

[SimenB]

This should be the case in jest 23.1.0 and up, #6310

[SimenB]

Wait no - we report with slash, but I suppose we still match on backslash?

[SimenB]

@JoshuaKGoldberg can you confirm if this is still an issue with latest Jest?

[JoshuaKGoldberg]

I cannot confirm if this is an issue because I cannot run unit tests anymore. 🤷‍ #6546

[ruapho]

I can confirm this:
✔️ node .\node_modules\jest\bin\jest.js server/modules/file/file.stream.service.test.ts
==> Test Suites: 1 passed, 1 total

❌ node .\node_modules\jest\bin\jest.js server\modules\file\file.stream.service.test.ts
==> Pattern: server\modules\file\file.stream.service.test.ts - 0 matches

  System:
    OS: Windows 10
    CPU: (8) x64 Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz
  Binaries:
    Node: 10.14.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.12.3 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
    npm: 6.4.1 - C:\Program Files\nodejs\npm.CMD

Using "jest": "23.6.0" with "ts-jest": "23.10.5"

[SimenB]

Ok, so it works like intended, then? We use forward slash in the reports, and if we use forward slash in the matching as well, then we're good.

Closing, but if I misunderstood I'm happy to reopen

[github-actions]

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