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[Pharo-project] Magritte 3

by Torsten Bergmann

Have a look here "An Introduction to Magritte 3" http://vimeo.com/37032840 http://www.slideshare.net/nickager/magritte3 http://forum.world.st/Magritte-3-td4401357.html Google is your friend ;) Bye T. -- NEU: FreePhone 3-fach-Flat mit kostenlosem Smartphone! Jetzt informieren: http://mobile.1und1.de/?ac=OM.PW.PW003K20328T7073a

June 5, 2012

Re: [Pharo-project] [update 2.0] #20110

by Serge Stinckwich

On Tue, Jun 5, 2012 at 5:04 PM, Damien Cassou <damien.cassou(a)gmail.com> wrote: > On Tue, Jun 5, 2012 at 11:55 AM, Camillo Bruni <camillobruni(a)gmail.com> wrote: >>> testGeneralInquiries >>> Â Â Â | now d t dt | >>> >>> Â Â Â now Â := self timeClass dateAndTimeNow. >>> Â Â Â self >>> Â Â Â Â Â Â Â assert: now size = 2; >>> Â Â Â Â Â Â Â assert: now last <= self timeClass now. >>> >>> Â Â Â self should: [ self timeClass timeWords ] raise: MessageNotUnderstood. >>> >>> Â Â Â d := '2 June 1973' asDate. >>> Â Â Â t := '4:02:47 am' asTime. >>> Â Â Â dt := self timeClass dateAndTimeFromSeconds: (2285280000 + 14567). >>> Â Â Â self >>> Â Â Â Â Â Â Â assert: dt = {d. t.}. >>> >>> >>> The middle part is a GREAT example of a useful unit testâ¦ >> >> 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/

June 5, 2012

Re: [Pharo-project] [update 2.0] #20110

by Damien Cassou

On Tue, Jun 5, 2012 at 11:55 AM, Camillo Bruni <camillobruni(a)gmail.com> wrote: >> testGeneralInquiries >> Â Â Â | now d t dt | >> >> Â Â Â now Â := self timeClass dateAndTimeNow. >> Â Â Â self >> Â Â Â Â Â Â Â assert: now size = 2; >> Â Â Â Â Â Â Â assert: now last <= self timeClass now. >> >> Â Â Â self should: [ self timeClass timeWords ] raise: MessageNotUnderstood. >> >> Â Â Â d := '2 June 1973' asDate. >> Â Â Â t := '4:02:47 am' asTime. >> Â Â Â dt := self timeClass dateAndTimeFromSeconds: (2285280000 + 14567). >> Â Â Â self >> Â Â Â Â Â Â Â assert: dt = {d. t.}. >> >> >> The middle part is a GREAT example of a useful unit testâ¦ > > 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? :-) -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

June 5, 2012

Re: [Pharo-project] [update 2.0] #20110

by Camillo Bruni

> 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 testâ¦ that's called a negative test :D, assume what possible could fail in the universe and test for it :D

June 5, 2012

Re: [Pharo-project] [update 2.0] #20110

by Pavel Krivanek

On Tue, Jun 5, 2012 at 10:58 AM, Sven Van Caekenberghe <sven(a)beta9.be> wrote: > Hi Pavel, > > On 05 Jun 2012, at 09:45, Pavel Krivanek wrote: > >> I have no idea... but you can try to reproduce. >> The build is still saved: >> https://ci.lille.inria.fr/pharo/view/Pharo%202.0/job/Pharo-2.0/118/ >> Here is the SUnit report: >> https://ci.lille.inria.fr/pharo/view/Pharo%202.0/job/Pharo-2.0-Tests/106/te… > > But there it says the failure is on Linux. ahhh, sorry, I changed the page. > > So I took that image and the latest CogVM from the download page and tried on one of our Ubuntu 12.04 64-bit machines. > > I can't make the test fail, I even ran the full test suite. > > So, not reproduceable from my point of view. > > Sven Well, we will se if it will fail again in future. -- Pavel

June 5, 2012

Re: [Pharo-project] [update 2.0] #20110

by Sven Van Caekenberghe

Hi Pavel, On 05 Jun 2012, at 09:45, Pavel Krivanek wrote: > I have no idea... but you can try to reproduce. > The build is still saved: > https://ci.lille.inria.fr/pharo/view/Pharo%202.0/job/Pharo-2.0/118/ > Here is the SUnit report: > https://ci.lille.inria.fr/pharo/view/Pharo%202.0/job/Pharo-2.0-Tests/106/te… But there it says the failure is on Linux. So I took that image and the latest CogVM from the download page and tried on one of our Ubuntu 12.04 64-bit machines. I can't make the test fail, I even ran the full test suite. So, not reproduceable from my point of view. Sven

June 5, 2012

Re: [Pharo-project] ClassBoxes... bitrotted, or usable?

by Jan Vrany

On 04/06/12 22:56, Alexandre Bergel wrote: > This was the implementation in Modular Smalltalk if I remember correctly. > > In plain Smalltalk you send a message named #msg and the lookup gives you a compile method. > In Modular Smalltalk, there is an intermediary step: #msg -> #Namespace.msg -> compile method > I see. What I do not see is how to achieve this without a cost at runtime. Given that it should support imports. Without imports, SNs are pretty much useless :-) Jan > Alexandre > > On Jun 4, 2012, at 8:34 AM, Jan Vrany wrote: > >> Hi >> >> >> - having a class Selector that get evaluated into a symbol. You can then achieved selector namespaces, which does not incur a cost at execution. >> >> I do not understand the idea. Could you give an example? >> >> >> Cheers, Jan >> >> >> >>> >>> Cheers, >>> Alexandre >>> >>> >>> On Jun 1, 2012, at 10:55 AM, Frank Shearar wrote: >>> >>>> I mused with a colleague about how I'd like to see "lexically scoped >>>> monkey patching", and he pointed me to some guys that want to add that >>>> to Ruby (http://timelessrepo.com/refinements-in-ruby) Note the >>>> inspiration for their work: ClassBoxes! >>>> (http://scg.unibe.ch/research/classboxes) >>>> >>>> I remember reading the paper years ago, and started working through it >>>> again now. Something that's not clear to me is this: does ClassBoxes >>>> require VM-side changes? (Because it changes the method lookup, after >>>> all, searching packages for methods before working up the inheritance >>>> tree.) If so, how invasive are they? If not, do we have a ball-park >>>> estimate of how much work it would be to update ClassBoxes to a more >>>> recent Squeak/Pharo? >>>> >>>> I'm more than happy to do the dogwork. I'd just like to know whether >>>> I'm signing up for months of work or not. >>>> >>>> Thanks! >>>> >>>> frank >>>> >>> >> >> >

June 5, 2012

Re: [Pharo-project] [update 2.0] #20110

by Pavel Krivanek

I have no idea... but you can try to reproduce. The build is still saved: https://ci.lille.inria.fr/pharo/view/Pharo%202.0/job/Pharo-2.0/118/ Here is the SUnit report: https://ci.lille.inria.fr/pharo/view/Pharo%202.0/job/Pharo-2.0-Tests/106/te… -- Pavel On Tue, Jun 5, 2012 at 9:34 AM, Sven Van Caekenberghe <sven(a)beta9.be> wrote: > > On 05 Jun 2012, at 08:55, Pavel Krivanek wrote: > >> Thank you, Tests Guard page updated >> http://code.google.com/p/pharo/wiki/TestsGuard > > How did TimeTest>>#testGeneralInquiries get in there ? > > I looked at it and I can't imagine why this would randomly fail on Mac OS X. But everything is possible. > > Maybe something with time zones, but as far as I can see, both date parsing and date creation from seconds use the local time zone. > > As for the test code itself, > > testGeneralInquiries > Â Â Â Â | now d t dt | > > Â Â Â Â now Â := self timeClass dateAndTimeNow. > Â Â Â Â self > Â Â Â Â Â Â Â Â assert: now size = 2; > Â Â Â Â Â Â Â Â assert: now last <= self timeClass now. > > Â Â Â Â self should: [ self timeClass timeWords ] raise: MessageNotUnderstood. > > Â Â Â Â d := '2 June 1973' asDate. > Â Â Â Â t := '4:02:47 am' asTime. > Â Â Â Â dt := self timeClass dateAndTimeFromSeconds: (2285280000 + 14567). > Â Â Â Â self > Â Â Â Â Â Â Â Â assert: dt = {d. t.}. > > > The middle part is a GREAT example of a useful unit testâ¦ > > Sven

June 5, 2012

Re: [Pharo-project] ClassBoxes... bitrotted, or usable?

by Jan Vrany

On 04/06/12 08:41, StÃ©phane Ducasse wrote: > Hi jan > >> - having a class Selector that get evaluated into a symbol. You can then achieved selector namespaces, which does not incur a cost at execution. > > Indeed we should just agree that this is the semantics we want for class extensions for example :) Viewed this way, indeed :-) > Jan did you have a look at http://timelessrepo.com/refinements-in-ruby > Because I would like to know if there are more selector or classbox oriented or something else? > Briefly. That post is more a "wow-that's-cool" sort of post rather than in-depth technical report. Looks like classboxes without local rebinding - that's what they say, after all. > Stef > . >> I do not understand the idea. Could you give an example? >> >> >> Cheers, Jan >> >> >> >>> >>> Cheers, >>> Alexandre >>> >>> >>> On Jun 1, 2012, at 10:55 AM, Frank Shearar wrote: >>> >>>> I mused with a colleague about how I'd like to see "lexically scoped >>>> monkey patching", and he pointed me to some guys that want to add that >>>> to Ruby (http://timelessrepo.com/refinements-in-ruby) Note the >>>> inspiration for their work: ClassBoxes! >>>> (http://scg.unibe.ch/research/classboxes) >>>> >>>> I remember reading the paper years ago, and started working through it >>>> again now. Something that's not clear to me is this: does ClassBoxes >>>> require VM-side changes? (Because it changes the method lookup, after >>>> all, searching packages for methods before working up the inheritance >>>> tree.) If so, how invasive are they? If not, do we have a ball-park >>>> estimate of how much work it would be to update ClassBoxes to a more >>>> recent Squeak/Pharo? >>>> >>>> I'm more than happy to do the dogwork. I'd just like to know whether >>>> I'm signing up for months of work or not. >>>> >>>> Thanks! >>>> >>>> frank >>>> >>> >> >> > > >

June 5, 2012

Re: [Pharo-project] Pharocasts ... updating and screencasts wanted

by Mariano Martinez Peck

On Tue, Jun 5, 2012 at 9:12 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>wrote: > Yes this is a good idea! > Also on the pharo web site. > > they are already there http://www.pharo-project.org/documentation/screencasts > Stef > > On Jun 5, 2012, at 8:52 AM, Torsten Bergmann wrote: > > > James Robertson is doing lots of Screencasts > > on Pharo (and other Smalltalks) in his ST4U series: > > > > http://www.jarober.com/blog/st4u.ssp > > > > Maybe we can ask him to link them on Pharocasts.com > > too? > > > > Thx > > T. > > -- > > Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir > > belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de > > > > > -- Mariano http://marianopeck.wordpress.com

June 5, 2012