2012/6/5 Sven Van Caekenberghe <[email protected]>: > Haha, very funny. > > It's a good thing there are so many jokes hidden inside the image. > > We could add a couple/many more: > > self deny: 1 = 2. > self deny: 1 = -1. > self deny: (4 / 2) = 3 > self shouldnt: [ 1 / 2 ] raise: ZeroDivide > > ;-) >
Yes it's laughable. However, I recently hacked Intger/Fraction to speed up mixed operations and guess what... once you know the miserable error's we can make... Nicolas > On 05 Jun 2012, at 12:10, Serge Stinckwich wrote: > >> On Tue, Jun 5, 2012 at 5:04 PM, Damien Cassou <[email protected]> >> wrote: >>> On Tue, Jun 5, 2012 at 11:55 AM, Camillo Bruni <[email protected]> >>> wrote: >>>>> testGeneralInquiries >>>>> | now d t dt | >>>>> >>>>> now := self timeClass dateAndTimeNow. >>>>> self >>>>> assert: now size = 2; >>>>> assert: now last <= self timeClass now. >>>>> >>>>> self should: [ self timeClass timeWords ] raise: >>>>> MessageNotUnderstood. >>>>> >>>>> d := '2 June 1973' asDate. >>>>> t := '4:02:47 am' asTime. >>>>> dt := self timeClass dateAndTimeFromSeconds: (2285280000 + 14567). >>>>> self >>>>> assert: dt = {d. t.}. >>>>> >>>>> >>>>> The middle part is a GREAT example of a useful unit test… >>>> >>>> that's called a negative test :D, assume what possible could fail in the >>>> universe and test for it :D >>> >>> I will write a paper on automatic negative test generation. Who wants >>> to join? :-) >> >> You can even write a program that write a paper about negative tests >> generation ;-) >> >> -- >> Serge Stinckwich >> UMI UMMISCO 209 (IRD/UPMC), Hanoi, Vietnam >> Every DSL ends up being Smalltalk >> http://doesnotunderstand.org/ >> > >
