Bats test fails when output dir exists

[AirQuick]

#582 (comment)

If you earlier ran tests manually..., then remove the inner xspec folder

*nix

~/test/xspec/test$ ls -d xspec
xspec
~/test/xspec/test$ ./run-bats.sh 
 ✗ invoking xspec without arguments prints usage
   (from function `setup' in test file xspec.bats, line 24)
     `mkdir ../test/xspec' failed
   mkdir: cannot create directory ‘../test/xspec’: File exists

Windows

C:\test\xspec\test>dir xspec? /a:d /b
xspec

C:\test\xspec\test>run-bats.cmd
=== START TEST CASES ================================================
CASE #1: invoking xspec without arguments prints usage
A subdirectory or file ..\test\xspec already exists.
...FAIL: Failed to mkdir: ..\test\xspec

Maybe test/run-bats.* should remove the folders beforehand.

[AirQuick]

@xspec/xspec
Will be fixed by #717