Also swap out .expects

spec/unit/facter/incrond_version_spec.rb

@@ -9,24 +9,24 @@
 
   context 'incrond command exists' do
     it 'returns the correct version of incrond when incrond is executable' do
-      Facter::Util::Resolution.expects(:which).with('incrond').returns('/usr/sbin/incrond')
-      File.expects(:executable?).with('/usr/sbin/incrond').returns(true)
+      allow(Facter::Util::Resolution).to receive(:which).with('incrond').and_return('/usr/sbin/incrond')
+      allow(File).to receive(:executable?).with('/usr/sbin/incrond').and_return(true)
       # 3rd entry in returned array is a ProcessStatus object, but since we don't
       # use it, not mocking its value
-      Open3.expects(:capture3).with('/usr/sbin/incrond', '--version').returns(['', "incrond 1.2.3\n", nil])
+      allow(Open3).to receive(:capture3).with('/usr/sbin/incrond', '--version').and_return(['', "incrond 1.2.3\n", nil])
       expect(Facter.fact(:incrond_version).value).to eq('1.2.3')
     end
 
     it 'returns nil when incrond is not executable' do
-      Facter::Util::Resolution.expects(:which).with('incrond').returns('/usr/sbin/incrond')
-      File.expects(:executable?).with('/usr/sbin/incrond').returns(false)
+      allow(Facter::Util::Resolution).to receive(:which).with('incrond').and_return('/usr/sbin/incrond')
+      allow(File).to receive(:executable?).with('/usr/sbin/incrond').and_return(false)
       expect(Facter.fact(:incrond_version).value).to eq(nil)
     end
   end
 
   context 'incrond command does not exist' do
     it 'returns nil' do
-      Facter::Util::Resolution.expects(:which).with('incrond').returns(nil)
+      allow(Facter::Util::Resolution).to receive(:which).with('incrond').and_return(nil)
       expect(Facter.fact(:incrond_version).value).to eq(nil)
     end
   end