require-double-brackets doesn't work in BusyBox sh even though [[ is supported

[GrantGryczan]

For bugs

• Rule Id (if any, e.g. SC1000): SC2292
• My shellcheck version (shellcheck --version or 'online'): online
• I tried on shellcheck.net and verified that this is still a problem on the latest commit
• It's not reproducible on shellcheck.net, but I think that's because it's an OS, configuration or encoding issue

Here's a snippet or screenshot that shows the problem:

#!/bin/busybox sh
# shellcheck enable=require-double-brackets

[ -e /etc/issue ]

Here's what shellcheck currently says:

Nothing.

Here's what I wanted or expected to see:

Line 4	SC2292: Prefer [[ ]] over [ ] for tests.

[koalaman]

You're right of course. This test had not been updated for the recently added BusyBox support. Thanks!

[ale5000-git]

@koalaman
I'm using BusyBox for Windows and it does support glob matching.
I don't think the version for Linux would be so behind (maybe you have tried an outdated version).

[grische]

@koalaman @ale5000-git I opened a new issue for the glob matching #2998