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To: python-list@python.org
From: Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject: Re: Classic OOP in Python
Date: Wed, 17 Jun 2015 22:07:43 +0100
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Xref: csiph.com comp.lang.python:92779

On 17/06/2015 21:39, Marko Rauhamaa wrote:
> Ned Batchelder <ned@nedbatchelder.com>:
>
>> TDD is about writing tests as a way to design the best system, and
>> putting testing at the center of your development workflow. It works
>> great with Python even without interfaces.
>
> I wonder how great it really is. Testing is important, that's for sure,
> but to make it a dogmatic starting point of development is not that
> convincing.
>
> The way it was explained to me was that in TDD you actually don't write
> code to any requirements or design: you simply do the least to pass the
> tests. Thus, say you need to write a program that inputs a string and
> outputs the same string surrounded by parentheses (the requirement), the
> starting point might be this test case:
>
>     - run the program
>     - give it the word "hello" as input
>     - check that the program prints out "(hello)"
>
> The right TDD thing would be to satisfy the test with this program:
>
>     input()
>     print("(hello)")
>
> That *ought* to be the first version of the program until further test
> cases are added that invalidate it.
>
>
> Another interesting ism I have read about is the idea that the starting
> point of any software project should be the user manual. The developers
> should then go and build the product that fits the manual.
>
>
> Marko
>

Awesome, one of the funniest things I've read in years.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence