Testing `bash-preexec`======================**Note on test conditions**When writing test conditions, use `[ ... ]` instead of `[[ ... ]]` since theformer are supported by Bats on Bash versions before 4.1. In particular, macOSuses Bash 3.2, and `[[ ... ]]` tests always pass on macOS.In some cases, you may want to use a feature unique to `[[ ... ]]` such aspattern matching (`[[ $name = a* ]]`) or regular expressions (`[[ $(date) =~^Fri\ ...\ 13 ]]`). In those cases, use the following pattern to replace “bare”`[[ ... ]]`.```[[ ... ]] || return 1```References:* [Differences between `[` and `[[`](http://mywiki.wooledge.org/BashFAQ/031)* [Problems with `[[` in Bats](https://github.com/sstephenson/bats/issues/49)* [Using `|| return 1` instead of `|| false`](https://github.com/bats-core/bats-core/commit/e5695a673faad4d4d33446ed5c99d70dbfa6d8be)