added AWS::EC2::Base#get_password_data for GetPasswordData API

lib/AWS/EC2/password.rb

@@ -0,0 +1,20 @@
+module AWS
+  module EC2
+    class Base < AWS::Base
+
+
+      # The GetPasswordData operation retrieves the encrypted administrator password for the instances running Window.
+      #
+      # @option options [String] :instance_id ("") an Instance ID
+      #
+      def get_password_data( options = {} )
+        options = {:instance_id => ""}.merge(options)
+        raise ArgumentError, "No instance ID provided" if options[:instance_id].nil? || options[:instance_id].empty?
+        params = { "InstanceId" => options[:instance_id] }
+        return response_generator(:action => "GetPasswordData", :params => params)
+      end
+
+
+    end
+  end
+end

test/test_EC2_password.rb

@@ -0,0 +1,45 @@
+#--
+# Amazon Web Services EC2 Query API Ruby library
+#
+# Ruby Gem Name::  amazon-ec2
+# Author::    Glenn Rempe  (mailto:glenn@rempe.us)
+# Copyright:: Copyright (c) 2007-2008 Glenn Rempe
+# License::   Distributes under the same terms as Ruby
+# Home::      http://github.com/grempe/amazon-ec2/tree/master
+#++
+
+require File.dirname(__FILE__) + '/test_helper.rb'
+
+context "The EC2 password " do
+
+  before do
+    @ec2 = AWS::EC2::Base.new( :access_key_id => "not a key", :secret_access_key => "not a secret" )
+
+    @get_password_data_response_body = <<-RESPONSE
+    <GetPasswordDataResponse xmlns="http://ec2.amazonaws.com/doc/2010-06-15/">
+      <instanceId>i-2574e22a</instanceId>
+      <timestamp>2009-10-24 15:00:00</timestamp>
+      <passwordData>TGludXggdmVyc2lvbiAyLjYuMTYteGVuVSAoYnVpbGRlckBwYXRjaGJhdC5hbWF6b25zYSkgKGdj</passwordData></GetPasswordDataResponse>
+    RESPONSE
+
+  end
+
+
+  specify "should return an encrypted password encoded by base64 " do
+    @ec2.stubs(:make_request).with('GetPasswordData', {"InstanceId"=>"i-2574e22a"}).
+       returns stub(:body => @get_password_data_response_body, :is_a? => true)
+    @ec2.get_password_data( :instance_id => "i-2574e22a" ).should.be.an.instance_of Hash
+    response = @ec2.get_password_data( :instance_id => "i-2574e22a" )
+    response.instanceId.should.equal "i-2574e22a"
+    response.timestamp.should.equal "2009-10-24 15:00:00"
+  end
+
+
+  specify "method get_password_data should raise an exception when called without nil/empty string arguments" do
+    lambda { @ec2.get_password_data() }.should.raise(AWS::ArgumentError)
+    lambda { @ec2.get_password_data(:instance_id => nil) }.should.raise(AWS::ArgumentError)
+    lambda { @ec2.get_password_data(:instance_id => "") }.should.raise(AWS::ArgumentError)
+  end
+
+
+end