When learning a new and difficult topic I do this a lot. For the topics I have difficulties with it takes 20 minutes to build a workable test case, and perhaps

When learning a new and difficult topic I do this a lot. For the topics I have difficulties with it takes 20 minutes to build a workable test case, and perhaps a lot more than 20 lines of code alone. It's not always that however. Most recently I spent 4 hours debugging socket.io disconnecting before I remembered nefarious DPI/crawling done by the house ISP https://nodpi.org/2010/08/07/talktalk-becomes-stalkstalk/ https://nodpi.org/2010/08/07/talktalk-becomes-stalkstalk/