> it's much more useful to write out the complete test case without
> preconceptions, without the aid of the code you're trying to test.
> This works because:
> * Writing out the test cases first can help in writing the
> real function.
>
> Those test cases act as documentation that ot
> I had the program generate the test cases for me, and then inspected
> them to verify that they were what I desired.
Hi Kermit,
Ah. Try not to do that next time.
It's way too easy to be convinced that some test is working by just
copying the output of the code and looking for reasonable ou
From: Alan Gauld
Date: 08/09/06 13:52:09
To: Kermit Rose
Cc: tutor@python.org
Subject: Re: [Tutor] programming exercise in Python
>> # testsum = 0
>> # if k > 0:
>> # mult[k-1] = 0
>> # for j in range(k,lenmult):
>> # testsum = testsum + mpylist[
>> # testsum = 0
>> # if k > 0:
>> # mult[k-1] = 0
>> # for j in range(k,lenmult):
>> # testsum = testsum + mpylist[j][1] * mult[j]
>
> My brain is bending with this bit! I'm not sure if its right or
> not...
>
> for k = 0, checks to see if it may add 1 to mult[0]
> for k = 1, sets mult[0] = 0, an
From: Alan Gauld
Date: 08/09/06 12:53:59
To: Kermit Rose; tutor@python.org
Subject: Re: [Tutor] programming exercise in Python
> # lenmult = len(mult)
This is pretty redundant, it only saves two characters typing,
you might as well do
**
hmm
I had gotten in the ha
> # lenmult = len(mult)
This is pretty redundant, it only saves two characters typing,
you might as well do
for k in range(len(mult)):
> # for k in range(lenmult):
> # mult[k] = mult[k] + 1
> # if k == 0:
> # if mult[k] == 1:
> #mult[k] = 2
From: Danny Yoo
Date: 08/09/06 11:01:14
To: Kermit Rose
Cc: tutor@python.org
Subject: Re: [Tutor] programming exercise in Python
On Wed, 9 Aug 2006, Kermit Rose wrote:
> I've written tenative code for the incr routine.
>
> Now to test and possibly debug it.
On Wed, 9 Aug 2006, Kermit Rose wrote:
> I've written tenative code for the incr routine.
>
> Now to test and possibly debug it.
Just as a note: it's usually a much better idea to write your test cases
first, even before writing any code. It'll give you a better idea of what
you want your f
