Note: Cross-posted on [SE Law][law] to get thoughts from legal experts there.

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Follow up question to [_Revisit the Hackintosh policy_][hackintosh].

Use case:

* I create a [userscript] (in a [licenced] Windows or a Linux) and release it under GNU GPLv3 <http://www.gnu.org/licenses/gpl-3.0.html>.
* I'd like to test the script with browsers available in macOS as well.
* To be able to achieve this with the x86-based systems mentioned above (I do not own or have access to any Mac) I get a macOS ISO image and install macOS in a local VM.


Does this comply with fair use's "[_public interest in the wider distribution and use of creative works_"](https://en.wikipedia.org/wiki/Fair_use)?

If the answer is (more) "yes" are questions regarding such a use case tolerated here on SU?

[law]: https://law.stackexchange.com/q/93140/11627
[hackintosh]: https://meta.superuser.com/q/12050/516482
[userscript]: https://superuser.com/edit-tag-wiki/9157