- Facter.fact(:osfamily).stubs(:value).returns 'Debian'
- File.stubs(:executable?) # Stub all other calls
- Facter::Util::Resolution.stubs(:exec) # Catch all other calls
- File.expects(:executable?).with('/usr/bin/apt-get').returns true
+ allow(Facter.fact(:osfamily)).to receive(:value).and_return('Debian')
+ allow(File).to receive(:executable?) # Stub all other calls
+ allow(Facter::Core::Execution).to receive(:execute) # Catch all other calls
+ allow(File).to receive(:executable?).with('/usr/bin/apt-get').and_return(true)