diff --git a/spec/lib/msf/core/exploit/powershell.rb b/spec/lib/msf/core/exploit/powershell.rb
index 5ceba1813c..7c671dd849 100644
--- a/spec/lib/msf/core/exploit/powershell.rb
+++ b/spec/lib/msf/core/exploit/powershell.rb
@@ -4,40 +4,210 @@ require 'spec_helper'
 require 'msf/core'
 require 'msf/core/exploit/powershell'
 
-EXAMPLE_PATH = File.join(Msf::Config.data_directory, "exploits", "powershell", "powerdump.ps1")
+def decompress(code)
+  Rex::Exploitation::Powershell::Script.new(code).decompress_code
+end
 
 describe Msf::Exploit::Powershell do
-  let(:datastore) { { } }
   subject do
-    mod = Module.new
+    mod = Msf::Exploit.allocate
     mod.extend described_class
-    mod.stub(
-      :datastore => datastore
-    )
-
+    mod.send(:initialize, {})
     mod
   end
 
+  let(:example_script) do
+    File.join(Msf::Config.data_directory, "exploits", "powershell", "powerdump.ps1")
+  end
+
   describe "::read_script" do
     it 'should read a sample script file' do
-      script = subject.read_script(EXAMPLE_PATH)
+      script = subject.read_script(example_script)
       script.should be_kind_of(Rex::Exploitation::Powershell::Script)
     end
   end
 
   describe "::encode_script" do
     it 'should read and encode a sample script file' do
-      script = subject.encode_script(EXAMPLE_PATH)
+      script = subject.encode_script(example_script)
       script.should be
       script.length.should be > 0
     end
   end
 
   describe "::compress_script" do
-    it 'should create a compress script' do
-      script = File.read(EXAMPLE_PATH)
-      compressed = subject.compress_script(script)
-      compressed.length.should be < script.length
+    context 'when default datastore is set' do
+      it 'should create a compressed script' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        compressed.length.should be < script.length
+        compressed.include?('IO.Compression').should be_true
+      end
+
+      it 'should create a compressed script with eof' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script, 'end_of_file')
+        compressed.length.should be < script.length
+      end
+    end
+
+    context 'when strip_comments is true' do
+      before do
+        subject.datastore['Powershell::strip_comments'] = true
+        subject.options.validate(subject.datastore)
+      end
+      it 'should strip comments' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        compressed.length.should be < script.length
+      end
+    end
+    context 'when strip_comment is false' do
+      before do
+        subject.datastore['Powershell::strip_comments'] = false
+        subject.options.validate(subject.datastore)
+      end
+      it 'shouldnt strip comments' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        compressed.length.should be < script.length
+      end
+    end
+
+    context 'when strip_whitespace is true' do
+      before do
+        subject.datastore['Powershell::strip_whitespace'] = true
+        subject.options.validate(subject.datastore)
+      end
+      it 'should strip whitespace' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        decompress(compressed).length.should be < script.length
+      end
+    end
+
+    context 'when strip_whitespace is false' do
+      before do
+        subject.datastore['Powershell::strip_whitespace'] = false
+        subject.options.validate(subject.datastore)
+      end
+      it 'shouldnt strip whitespace' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        decompress(compressed).length.should be script.length
+      end
+    end
+
+    context 'when sub_vars is true' do
+      before do
+        subject.datastore['Powershell::sub_vars'] = true
+        subject.options.validate(subject.datastore)
+      end
+      it 'should substitute variables' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        decompress(compressed).include?('$hashes').should be_false
+      end
+    end
+
+    context 'when sub_vars is false' do
+      before do
+        subject.datastore['Powershell::sub_vars'] = false
+        subject.options.validate(subject.datastore)
+      end
+      it 'shouldnt substitute variables' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        decompress(compressed).include?('$hashes').should be_true
+      end
+    end
+
+    context 'when sub_funcs is true' do
+      before do
+        subject.datastore['Powershell::sub_funcs'] = true
+        subject.options.validate(subject.datastore)
+      end
+      it 'should substitute functions' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        decompress(compressed).include?('DumpHashes').should be_false
+      end
+    end
+
+    context 'when sub_funcs is false' do
+      before do
+        subject.datastore['Powershell::sub_funcs'] = false
+        subject.options.validate(subject.datastore)
+      end
+      it 'shouldnt substitute variables' do
+        script = File.read(example_script)
+        compressed = subject.compress_script(script)
+        decompress(compressed).include?('DumpHashes').should be_true
+      end
+    end
+  end
+
+  describe "::cmd_psh_payload" do
+    it 'should generate a command line with an x86 payload' do
+
+    end
+
+    it 'should generate a command line with an x64 payload' do
+
+    end
+
+    context 'when persist is true' do
+      it 'should add a persistance loop'
+      end
+    end
+
+    context 'when persist is false' do
+      it 'shouldnt add a persistance loop' do
+      end
+    end
+
+    context 'when prepend_sleep is set' do
+      it 'should add a sleep' do
+
+      end
+    end
+
+    context 'when prepend_sleep isnt set' do
+      it 'shouldnt add a sleep' do
+
+      end
+    end
+
+    context 'when method is old' do
+
+    end
+
+    context 'when method is net' do
+
+    end
+
+    context 'when method is reflection' do
+
+    end
+
+    context 'when method is msil' do
+
+    end
+
+    context 'when encode_inner_payload' do
+
+    end
+
+    context 'when encode_final_payload' do
+
+    end
+
+    context 'when remove_comspec' do
+
+    end
+
+    context 'when use single quotes' do
+
     end
   end