Very poorly chosen Module name. I had to look at the test to be sure about what it did.
Test::SkipAllTestsUnlessExistsExecutable, although boringly long, reflect better what the module does.
I hope the author fixes the name and documentation and that a real Test-ExistsExecutable, which fails if an executable does not exists, finds its way into CPAN instead.
Test::ExistsExecutable is similar to File::Which::which or Module::Install::requires_external_bin, but much less useful because it only deals with fully qualified paths.
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