Testing CLI commands on Windows machines

nysus has asked for the wisdom of the Perl Monks concerning the following question:

I have a cpan module with the following tests that has failed smoke testing on a Windows machine. It is choking on these tests:

stderr_like { `bin/anki_import` } qr/usage: anki_import FILE/, 'dies w
+ithout file';
stderr_like { `bin/anki_import blasdfah` } qr/[FATAL].*does not exist/
+, 'dies with bad file';
lives_ok { `bin/anki_import t/data/source.anki` } 'can process good fi
+le';
[download]

Looks like Windows is getting confused by the forward slash. Here is the reported error:

#   Failed test 'dies without file'
#   at t/02-cli.t line 22.
# STDERR:
# 'bin' is not recognized as an internal or external command,
# operable program or batch file.
[download]

Do I need to detect the OS and write a special command for Windows? Maybe I can just cd into the bin and execute from there? What's the best fix for this?

$PM = "Perl Monk's";
$MCF = "Most Clueless ~~Friar~~ ~~Abbot~~ ~~Bishop~~ ~~Pontiff~~ ~~Deacon~~ ~~Curate~~ Priest";
$nysus = $PM . ' ' . $MCF;
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