[669][WIP] attempt to add test cases

[shanshanzhu]

This is a work in progress to add the test cases for
#669 (comment)

---

Changes are visible to end-users: yes/no

• Searched for relevant documentation and updated as needed: yes/no
• Breaking change (forces users to change their own code or config): yes/no
• Suggested release notes appear below: yes/no

Test plan

• Covered by existing test cases
• New test cases added
• Manual testing; please provide instructions so we can reproduce:

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[aspect-workflows]

Test

⚠️ Buildkite build #173 failed.

Failed tests (1)

//gazelle/js:simple_globs_folder_files_test [k8-fastbuild] 🔗

💡 To reproduce the test failures, run

bazel test //gazelle/js:simple_globs_folder_files_test

---

Buildifier      Format