Fix strip_whitespace speccing

spec/lib/msf/core/exploit/powershell_spec.rb

@@ -78,6 +78,7 @@ describe Msf::Exploit::Powershell do
 
     context 'when strip_whitespace is true' do
       before do
+        subject.datastore['Powershell::strip_comments'] = false
         subject.datastore['Powershell::strip_whitespace'] = true
         subject.options.validate(subject.datastore)
       end
@@ -90,13 +91,16 @@ describe Msf::Exploit::Powershell do
 
     context 'when strip_whitespace is false' do
       before do
+        subject.datastore['Powershell::strip_comments'] = false
         subject.datastore['Powershell::strip_whitespace'] = false
         subject.options.validate(subject.datastore)
       end
       it 'shouldnt strip whitespace' do
         script = File.read(example_script)
+        File.open('/tmp/1','w') { |f| f.write script }
         compressed = subject.compress_script(script)
-        decompress(compressed).length.should be script.length
+        File.open('/tmp/2','w') { |f| f.write decompress(compressed) }
+        expect(decompress(compressed).length).to eq(script.length)
       end
     end