spec/unit/postmark/message_extensions/mail_spec.rb in postmark-1.1.2 vs spec/unit/postmark/message_extensions/mail_spec.rb in postmark-1.2.0

@@ -73,10 +73,10 @@
       mail_message.postmark_attachments = attached_hash
     end
   end
 
   describe "#postmark_attachments" do
-    let(:attached_file) { mock("file") }
+    let(:attached_file) { double("file") }
     let(:attached_hash) { {'Name' => 'picture.jpeg',
                            'ContentType' => 'image/jpeg'} }
     let(:exported_file) { {'Name' => 'file.jpeg',
                            'ContentType' => 'application/octet-stream',
                            'Content' => ''} }