Software Craftsmanship

Since practical computation demands that implicit assumptions be brought out into the open, it is no coincidence that computer programmers are attracted to an approach devoted to studying how people make assumptions. -- Gerald Weinberg. number: 4240 date: 08/29/2017 status: in progress type: bug severity: serious submitter: C. COURDEL nature: partial budget carry forward does not work description: I skip the budgeted year, perform a partial carryover, option: without exceeding, I submit the form, nothing happens! Owner : _ Resolution status: _ You've just opened…

The treatment of error as a source of valuable information is precisely what distinguishes the feedback (error-controlled) system from its less capable predecessors. Jerry Weinberg @OlegTxl Direct Message Hi Oleg, can you spare me an hour of your time? ok, around 6pm? ping me (...) ping pong Thanks Oleg. I would like some advice about mob programming for my project at work OK I was given three months to turn the situation around on the app I'm working on situation ==? we have to deliver…

Managers are not confronted with problems that are independent of each other, but with dynamic situations that consist of complex systems of changing problems that interact with each other. I call such situations messes. Problems are extracted from messes by analysis. Managers do not solve problems, they manage messes. Russell Ackoff A chat window opens at the bottom right. Maria: come to see me when you can for 15 minutes today pls. You save your work, answering: I'm coming. You grab something to write with.…

It's all talk until the code runs Ward Cunningham After the waiter finishes combining four small tables, the group sits down and orders food. They start talking about programming. Someone brings up the meaning of the number 42. You start with your main topic. "So yesterday afternoon, I did a mob session with my team in the conference room." Oleg, who often proposes to facilitate Mob Programming, answers. "OK! How did that go? "Not very well, actually." You caught the group's attention. "I'll spare you…

Jeremy arrives first, he settles in near the projector and takes a sandwich out of his brown paper lunch bag. "So if I understand correctly, you propose that we spend the lunch break on the XXL code." "Yes. But just experimenting, mind you. It's a trial." "Don't bother justifying, I am joking." Farid and Audrey now show up and take a seat. Farid asks, "Could you remind us what you mean by Mob Programming? I forgot." "Rather than trying to explain it, I suggest we…

You are late, but it is just getting started. You slip into your chair as quietly as you can. Hardly unnoticed, because the person who is standing near the projector calls you out, asks your name, and explains to you the purpose of tonight's exercise. "We are doing a mob, using TDD, using the Bowling Score kata. That guy," he points to the person who is sitting at the laptop, "he's the Driver. The Driver writes the code, but he doesn't think. You are the…

The conclusion seems inescapable that at least with certain kinds of large programs, the continued adaption, modification, and correction of errors in them, is essentially dependent on a certain kind of knowledge possessed by a group of programmers who are closely and continuously connected with them. Peter Naur - Programming as Theory Building You look at that bit of code, the one where you have to add some new functionality and hear yourself saying out loud: "I would never have written it this way... How…

Continuation of prior episode: And yet... Could this possibly be the moment to at least pause and reflect? What if it was time for us to start changing the way we work? Let's take this bug. In the blink of an eye, you found both the cause and the solution. You opened up the code, made the requisite change and compiled the build. In ten minutes, the application can be released for acceptance testing. But you'll have to provide the customer with test-case data. And…

This article describes test contexts, from common to more complex ones, on a Vue.js stack. You may read TDD with Vue.js article as an introduction, which is mainly focused on methodology (Test Driven Development). This current article describes a wider range of test contexts based on Vue.js, using vue-test-utils helpers and the Jest testing framework.   1/ Jest Jest is a testing framework developed and used by Facebook to test JavaScript code. Its main goal is to simplify test configuration. It integrates most of the…

It starts with a sort of blissful ignorance. We write code oblivious to the consequences, unhindered by the necessity of receiving feedback about this code, and to the need for feedback on what we've done. We naively construct a tower with what we find here and there. When the tower shakes, we suddenly become extra careful and take that extra bit longer on each small portion of code, all the while buckling to pressure from our clients and managers. The tower crumbles; we rebuild hastily.…