diff --git a/spec/lib/rex/exploitation/encryptjs_spec.rb b/spec/lib/rex/exploitation/encryptjs_spec.rb
new file mode 100644
index 0000000000..c3db14b508
--- /dev/null
+++ b/spec/lib/rex/exploitation/encryptjs_spec.rb
@@ -0,0 +1,35 @@
+# -*- coding:binary -*-
+require 'spec_helper'
+
+require 'rex/exploitation/encryptjs'
+
+describe Rex::Exploitation::EncryptJS do
+
+  let(:code) { "var test = 'metasploit';" }
+  let(:key) { "secret" }
+  let(:signature) { "metasploit" }
+  let(:loader_signature) { "location.search.substring(1);" }
+  let(:loader_key_words) { ['exploit', 'encoded', 'pass', 'decoded'] }
+
+  describe "Rex::Exploitation::EncryptJS.encrypt" do
+    it "returns an String" do
+      expect(Rex::Exploitation::EncryptJS.encrypt(code, key)).to be_an(String)
+    end
+
+    it "returns the JavaScript loader code" do
+      expect(Rex::Exploitation::EncryptJS.encrypt(code, key)).to include(loader_signature)
+    end
+
+    it "encrypts the code" do
+      expect(Rex::Exploitation::EncryptJS.encrypt(code, key)).to_not include(signature)
+    end
+
+    it "obfuscates the loader" do
+      loader_key_words.each do |key_word|
+        expect(Rex::Exploitation::EncryptJS.encrypt(code, key)).to_not include(key_word)
+      end
+    end
+
+  end
+
+end