Checking filesystem permissions is broken on Windows

[maxmeyer]

Summary

Windows does not support all filesystem permissions like POSIX-compatible systems does. See this CI build.

Expected Behavior

Tests should succeed

Current Behavior

Tests fail.

Possible Solution

Either ... or ...

• Just fix test to set the correct bits
• Implement two different versions of expect(...).to have_permissions(...) which are included depending on the used operating system
• Add exception to current implementation which fails if unsupported bits are set

Steps to Reproduce (for bugs)

See CI build

Context

CI

Your Environment

• Version used: latest
• Operating System and version: AppVeyor CI