Add a create_snapshot request method, a corresponding mock, and add support for it in the block storage provider.

lib/fog/hp/block_storage.rb

@@ -18,6 +18,7 @@ module Fog
       request :get_volume_details
       request :list_volumes
 
+      request :create_snapshot
       request :list_snapshots
 
       module Utils

lib/fog/hp/requests/block_storage/create_snapshot.rb

@@ -0,0 +1,76 @@
+module Fog
+  module BlockStorage
+    class HP
+      class Real
+
+        # Create a new block storage snapshot
+        #
+        # ==== Parameters
+        # * name<~String>        - Name of the snapshot
+        # * description<~String> - Description of the snapshot
+        # * volume_id<~Integer>  - Id of the volume to create snapshot of
+        # * options<~Hash>:
+        #   * 'force'<~Boolean> - True or False
+        #
+        # ==== Returns
+        # * response<~Excon::Response>:
+        #   * body<~Hash>:
+        #     * snapshot<~Hash>:
+        #       * 'id'<~Integer>: - Id for the snapshot
+        #       * 'displayName'<~String>: - Name of the snapshot
+        #       * 'displayDescription'<~String>: - Description of the snapshot
+        #       * 'size'<~Integer>: - Size in GB for the snapshot
+        #       * 'status'<~String>: - Status of the snapshot i.e. "creating"
+        #       * 'volumeId'<~String>: - Id of the volume from which the snapshot was created
+        #       * 'createdAt'<~String>: - Timestamp in UTC when snapshot was created
+        def create_snapshot(name, description, volume_id, options={})
+          data = {
+            'snapshot' => {
+              'display_name'        => name,
+              'display_description' => description,
+              'volume_id'           => volume_id
+            }
+          }
+
+          l_options = ['force']
+          l_options.select{|o| options[o]}.each do |key|
+            data['snapshot'][key] = options[key]
+          end
+
+          request(
+            :body     => MultiJson.encode(data),
+            :expects  => 200,
+            :method   => 'POST',
+            :path     => "os-snapshots"
+          )
+        end
+
+      end
+
+      class Mock  # :nodoc:all
+
+        def create_snapshot(name, description, volume_id, options={})
+          response = Excon::Response.new
+          if self.data[:volumes][volume_id]
+            response.status = 200
+            data = {
+              'id'                 => Fog::Mock.random_numbers(3).to_i,
+              'displayName'        => name,
+              'displayDescription' => description,
+              'size'               => self.data[:volumes][volume_id]['size'],
+              'status'             => 'available',
+              'volumeId'           => volume_id,
+              'createdAt'          => Time.now.to_s
+            }
+            self.data[:snapshots][data['id']] = data
+            response.body = { 'snapshot' => data }
+          else
+            raise Fog::BlockStorage::HP::NotFound
+          end
+          response
+        end
+      end
+
+    end
+  end
+end