fix: Inverted tag and grep untagged

[CaiqueCoelho]

• Closes Inverted tag for cypress-grep and grepUntagged doesn't work #28189

Additional details

Problem: Improper Handling of Negative Tags in shouldTestRun

The shouldTestRun function needs to correctly interpret negative tags (e.g., -@burn). If it does not, then it might incorrectly determine that tests with the @burn tag should run when they should not, or it might exclude tests without any tags.

Fix: Refactor shouldTestRun to handle negative tags and grepUntagged with true

We have ensured that the shouldTestRun function (and any helper function like shouldTestRunTags it relies on) interprets negative tags correctly. This means if -@burn is passed, the function should return false for any test with the @burn tag and true for tests without the @burn tag. Also when passing grepUntagged as true now we analyze test by test whether it has a direct tag from the it block or inherits a tag from the describe block

Steps to test

All the following unit tests using shouldTestRun and shouldTestRunTags methods should pass on the following file npm/grep/cypress/e2e/unit.js

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
3 out of 4 committers have signed the CLA.

✅ jennifer-shehane
✅ CaiqueCoelho
✅ caique-rd
❌ Caíque Coelho

---

Caíque Coelho seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[cypress-app-bot]

• Create a Draft Pull Request if your PR is not ready for review. Mark the PR as Ready for Review when you're ready for a Cypress team member to review the PR.

[CaiqueCoelho]

Hey folks, could we have someone taking a look on this, please? 🙏 cc @ryanthemanuel @jennifer-shehane

[cypress-app-bot]

This PR has not had any activity in 180 days. If no activity is detected in the next 14 days, this PR will be closed.

[cypress-app-bot]

This PR has been closed due to inactivity