Create list_snapshot_images.rb

Provide a method for retrieving snapshot images.

lib/fog/rackspace/requests/compute_v2/list_snapshot_images.rb

@@ -0,0 +1,37 @@
+module Fog
+  module Compute
+    class RackspaceV2
+      class Real
+              
+        # Retrieves a list of snapshot images
+        # @return [Excon::Response] response:
+        #   * body [Hash]:
+        #     * images [Array]:
+        #       * [Hash]:
+        #         * id [String] - image id
+        #         * links [Array] - image links
+        #         * name [String] - image name
+        # @raise [Fog::Compute::RackspaceV2::NotFound] - HTTP 404
+        # @raise [Fog::Compute::RackspaceV2::BadRequest] - HTTP 400
+        # @raise [Fog::Compute::RackspaceV2::InternalServerError] - HTTP 500
+        # @raise [Fog::Compute::RackspaceV2::ServiceError]
+        # @see http://docs.rackspace.com/servers/api/v2/cs-devguide/content/List_Images-d1e4435.html
+      
+        def list_snapshot_images
+          request(
+            :expects => [200, 203],
+            :method => 'GET',
+            :path => 'images?type=SNAPSHOT'
+          )
+        end
+      end
+      
+      class Mock
+        def list_snapshot_images
+          images = self.data[:images].values.select {|i| i["metadata"]["image_type"] == "snapshot"}
+          response(:body => {"images" => images})
+        end
+      end
+    end
+  end
+end