✨ OAuth2::AccessToken#refresh supports block param

Author: pboling

lib/oauth2/access_token.rb

@@ -175,12 +175,12 @@ def expired?
     #
     # @return [AccessToken] a new AccessToken
     # @note options should be carried over to the new AccessToken
-    def refresh(params = {}, access_token_opts = {})
-      raise("A refresh_token is not available") unless refresh_token
+    def refresh(params = {}, access_token_opts = {}, &block)
+      raise OAuth2::Error.new({error: "A refresh_token is not available"}) unless refresh_token
 
       params[:grant_type] = "refresh_token"
       params[:refresh_token] = refresh_token
-      new_token = @client.get_token(params, access_token_opts)
+      new_token = @client.get_token(params, access_token_opts, &block)
       new_token.options = options
       if new_token.refresh_token
         # Keep it if there is one