May 2019 - Pharo-users - lists.pharo.org

TestRunner to run superclass's tests

by Pierce Ng

Hi all, I have a testing class that is sub-subclass of TestCase, i.e., the class hierarchy looks like this: TestCase ExistingTestingClass MyNewTestingClass How do I get TestRunner to run MyNewTestingClass's tests, as well as ExistingTestingClass's tests in the context of MyNewTestingClass? Pierce

May 23, 2019

All the little cute icons

by Kasper Osterbye

I was wondering about all the cute icons I see in the browser, Iceberg, etc. I assume they all are intended to mean something, but where is the documentation of that? best, Kasper

May 23, 2019

[Call for Topics] Pharo TechTalks

by Marcus Denker

Hi, Last year we had some âPharo Tech Talksââ¦ we want to start that again. Dates: June 20 July 18 Sept 19 Oct 17 Nov 21 Dec 12 The time would be 17h local time (Berlin/Paris). -> If you want to âdriveâ one of those dates â> send me a mail. -> Dates are flexible, if you want to do a tech talk you can propose another date, too -> For the dates without special talk, I think I will do a âlets fix something smallâ session as the default. (with screen sharing, while the people on Discord help and discuss how to do it) What can it be? -> you could present your project -> you could give a âlectureâ -> you could do some tutorial -> You could moderate a audio chat around a topic If someone wants to do something, send me a mail. I will for now already add these dates to the events list at https://association.pharo.org/events Marcus

May 23, 2019

Re: [Pharo-users] Does anyone know Spec?

by Esteban Lorenzano

Hi, You need to use - whenActivatedDo: or - whenSelectionChangedDo: Both are conceptually different but depending on your selection of activateOnSingleClick or activateOnDoubleClick you can control what to do. (Which reminds me we still need a forced double click action inclusive when activated in single click: sometimes you have one action on single click and a different one on double click). Esteban > On 23 May 2019, at 05:34, Steve Quezadas <steveeq1(a)gmail.com> wrote: > > I created a simple listbox. It looks like this: > https://s3.amazonaws.com/steverstuff/items.png <https://s3.amazonaws.com/steverstuff/items.png> > > If I hit a specific selection, say "Item B", how can I make smalltalk run an arbitrary piece of code? (ie: "Transcript show: 'got here'"). > > Method "whenSelectedItemChanged" should, in theory, do this. It is mentioned in the [[https://benjamin.vanryseghem.com/projects/spec/docs/example/#protocolList][… <https://benjamin.vanryseghem.com/projects/spec/docs/example/#protocolList][…>]] tutorial, but for some reason it's not executing. > > Did a new verion of spec change things since the documentation was written? There doesn't seem to be a spec community where I can ask the question.

May 23, 2019

Does anyone know Spec?

by Steve Quezadas

I created a simple listbox. It looks like this: https://s3.amazonaws.com/steverstuff/items.png If I hit a specific selection, say "Item B", how can I make smalltalk run an arbitrary piece of code? (ie: "Transcript show: 'got here'"). Method "whenSelectedItemChanged" should, in theory, do this. It is mentioned in the [[ https://benjamin.vanryseghem.com/projects/spec/docs/example/#protocolList][…]] tutorial, but for some reason it's not executing. Did a new verion of spec change things since the documentation was written? There doesn't seem to be a spec community where I can ask the question.

May 23, 2019

Re: [Pharo-users] shortlist of businesses providing professional Pharo services in the Netherlands/Europe

by Marcus Denker

> On 22 May 2019, at 11:17, Jonathan van Alteren <jvalteren(a)objectguild.com> wrote: > > Hi all, > > One of our potential clients has asked about business continuity regarding our use of the Pharo platform. In other words, they want to know which companies can take over development/maintenance of their Pharo application, in the unlikely event that we end our services. > > Besides the Pharo Consortium members, is there perhaps a shortlist of professional Pharo software service businesses in the Netherlands and/or Europe? > There is the Pharo consultants listing in addition to the Consortium members: http://consultants.pharo.org <http://consultants.pharo.org/> Some overlap with the consortium, and most are single consultants, not companies. (We need to develop that list furtherâ¦) > Do you know businesses providing professional Pharo services in the Netherlands? > In the consortium list and not Netherland, but close: http://zweidenker.de/en/ <http://zweidenker.de/en/> Marcus

May 22, 2019

Re: [Pharo-users] shortlist of businesses providing professional Pharo services in the Netherlands/Europe

by Otto Behrens

Hi, We have had some experience with this kind of question, although we are using Pharo to develop, but GemStone in production. We provide our systems on a SaaS model to all our customers. We have set up Escrow agreements with some of our clients, which involves a third party company. At the very first level, this company acts as a "safekeeper" and verifier of the escrow event. This means that the escrow agent can start up your application and keep it running, until your customer have found a solution. Should the customer need more than thant, the escrow agent can provide the ability to maintain the application, until the customer have a solution. This solution could be that the customer acquires the IP (intellectual property) and proceeds to develop in-house or finds an alternative provider of the service. Setting up an agreement like this or at least giving your potential customer the comfort that there is option of an escrow agreement, does a lot for risk aversity, in our experience. The better option is to find an escrow agent that can work on your application, but at the very basic level it requires that the agent can at least "run" the application (eg ensure that it is up, ensure backups are made, etc). If you need more info, please let me know, Otto Behrens +27 82 802 2375 [image: FINWorks] [image: FINWorks] <http://za.linkedin.com/in/waltherbehrens> www.finworks.biz Disclaimer & Confidentiality Note: This email is intended solely for the use of the individual or entity named above as it may contain information that is confidential and privileged. If you are not the intended recipient, be advised that any dissemination, distribution or copying of this email is strictly prohibited. FINWorks cannot be held liable by any person other than the addressee in respect of any opinions, conclusions, advice or other information contained in this email. On Wed, May 22, 2019 at 11:18 AM Jonathan van Alteren < jvalteren(a)objectguild.com> wrote: > Hi all, > > One of our potential clients has asked about business continuity regarding > our use of the Pharo platform. In other words, they want to know which > companies can take over development/maintenance of their Pharo application, > in the unlikely event that we end our services. > > Besides the Pharo Consortium members, is there perhaps a shortlist of > professional Pharo software service businesses in the Netherlands and/or > Europe? > > Do you know businesses providing professional Pharo services in the > Netherlands? > > > Kind regards, > > Jonathan van Alteren > Object Guild (https://objectguild.com) >

May 22, 2019

shortlist of businesses providing professional Pharo services in the Netherlands/Europe

by Jonathan van Alteren

Hi all, One of our potential clients has asked about business continuity regarding our use of the Pharo platform. In other words, they want to know which companies can take over development/maintenance of their Pharo application, in the unlikely event that we end our services. Besides the Pharo Consortium members, is there perhaps a shortlist of professional Pharo software service businesses in the Netherlands and/or Europe? Do you know businesses providing professional Pharo services in the Netherlands? Kind regards, Jonathan van Alteren Object Guild (https://objectguild.com)

May 22, 2019

Re: [Pharo-users] How to visit over packages, classes, methods (all types)

by Dale Henrichs

clarification embedded below On 5/20/19 3:43 PM, Dale Henrichs wrote: > > | project className | > project := (Rowan projectNamed:'Exercise') asDefinition. > className := 'Acronym'. > packageName := 'Exercise-', className. > ((project > addPackageNamed: packageName > toComponentNamed: className > withConditions: 'gemstone' > andGroup: 'core') > addClassNamed: className super: 'Object' category: packageName) > addInstanceMethod: 'foo ^1' protocol: 'accessing. > > ((project > addPackageNamed: packageName, '-Test' > toComponentNamed: className > withConditions: 'gemstone' > andGroup: 'test') > addClassNamed: className, 'Test' super: 'TestCase' category: packageName) > addInstanceMethod: 'test ...' protocol: 'testing. > > (project componentNamed: className) > addComponent: 'ExercismDev'. > project export. "to write project to disk" > project load. "to load the project in the image" > 'ExercismDev' above and 'ExercismTools' should be the same component name ('ExercismDev' ?) ... this is the component name containing the required packages ... > > RwComponentLoadConfiguration{ > #name : 'Acronym', > #version : '0.1.0', > #conditionalPackages : { > [ > 'gemstone' > ] : { > 'core' : { > #packageNames : [ > 'Exercise-Acronym' > ] > } > 'test' : { > #packageNames : [ > 'Exercise-Acronym-Test' > ] > } > > } > }, > #componentNames : [ 'ExercismTools' ] > } >

May 21, 2019

Re: [Pharo-users] How to visit over packages, classes, methods (all types)

by Dale Henrichs

On 5/20/19 12:38 PM, Tim Mackinnon wrote: > Hi Dale - thanks for chipping in. Iâve seen references to Rowan, but > hadnât investigated. Interesting. > > Were you thinking of a standard visitor pattern (Gof) or something > else? And/Or, Is this visiting piece already done, or would it help if > we had such a beast in Pharo that you could then reuse for your purpose? I haven't focused on visitors at the moment I am focusing on building out the basic definition structure ... providing apis for creating packages in projects, classes in packages and methods in classes, etc. Currently I am using severalÂ flavors visitors for modifications (visiting the result of comparing two project definitions) ... the most interesting pattern is that the modification visitor is being used to write only the changed structures to disk -- instead of rewriting the whole package. A modification visitor is also used by the loader to drive the loading process -- again identifying the definitions that have changed and then applying those changes to the image ... I haven't run into a use case where I needed to use a visitor on the defintion structure itself ... so far doing projectNamed:/packageNamed:/classNamed:/methodNamed: has met my needs, but I would be interested to learn a bit more about the application that you have in mind ... > > As an aside, in a separate message, I was lamenting the complexity of > managing 100 simple similar packages with the same dependency - would > Rowan help with that? I assume that you are referring to this email[1]?Â If so, then I do think that Rowan would simplify things as there as the whole structure is controlled by a definitions structure api, so there is an API for creating and managing packages/classes, so if you were going to add a new class that was supposed to be independently loadable then you would do something like the following: | project className | project := (Rowan projectNamed:'Exercise') asDefinition. className := 'Acronym'. packageName := 'Exercise-', className. ((project addPackageNamed: packageName toComponentNamed: className withConditions: 'gemstone' andGroup: 'core') addClassNamed: className super: 'Object' category: packageName) addInstanceMethod: 'foo ^1' protocol: 'accessing. ((project addPackageNamed: packageName, '-Test' toComponentNamed: className withConditions: 'gemstone' andGroup: 'test') addClassNamed: className, 'Test' super: 'TestCase' category: packageName) addInstanceMethod: 'test ...' protocol: 'testing. (project componentNamed: className) addComponent: 'ExercismTools'. project export. "to write project to disk" project load. "to load the project in the image" In Rowan, packages are not independently loadable. A component is the loadable entity and it may be composed of one or more conditional packages. A component has dependencies upon other components ... One other thing about Rowan is that there is no such thing as load order ... the components/packages are loaded atomically, so dependencies may be circular. The #export method above, writes the package and component structure to disk, and the component would look like the following: RwComponentLoadConfiguration{ #name : 'Acronym', #version : '0.1.0', #conditionalPackages : { [ 'gemstone' ] : { 'core' : { #packageNames : [ 'Exercise-Acronym' ] }, 'test' : { #packageNames : [ 'Exercise-Acronym-Test' ] } } }, #componentNames : [ 'ExercismTools' ] } At the end of the day, you'd have 100 components (one for each exercise). A "well formed" component should have tests. For something to be independently loadable, it is absolutely necessary that the independent aspect be validated by tests ... so I added a Test class and package for Acronym:) ... ExecercismTools is a separate components with all of the necessary packages and "prereqs" defined... Hopefully, I've given you a flavor of how I think your problem would be addressed with Rowan ... The thing that I like is that everything is a definition with an api for creating/maintaining the definitions and all of the definitions exist independent of the loaded image ... the definitions can be read/written from disk without going through a load processÂ ... Let me know what you think ... as these components are still fluid at the moment, feedback will have a real impact on the end product. Dale [1] http://forum.world.st/The-baseline-complexity-of-tiny-big-projects-td509949… > > Tim > > Sent from my iPhone > > On 20 May 2019, at 20:16, Dale Henrichs > <dale.henrichs(a)gemtalksystems.com > <mailto:dale.henrichs@gemtalksystems.com>> wrote: > >> Tim, >> >> I know that this doesn't answer your question, but one of the >> features that I'm building into Rowan is just this capability: >> >> * project definitions composed of package definitions >> * package definitions composed of class and class extension definitions >> * class and class extensions definitions composed of method >> definitions >> >> ... there are also definitions that cover what is now handled by >> Metacello: conditional packages, package grouping and project >> dependencies ... >> >> I am intending/hoping that Rowan will eventually be available for >> Pharo:) ... I have to finish Rowan for GemStone first:) >> >> Dale >> >> On 5/19/19 10:23 AM, Tim Mackinnon wrote: >>> Hi - is there a way to iterate over all the code in a package (or class or baseline) in a generic way (to pretty print out class definitions, and methods - including extensions ). >>> >>> I was kind of hoping that with TonelWriter and Fileout and Critics that we would have a generic visitor mechanism but it seems that all of them just implemented it again - which misses a big opportunity for refactoring so that when you want to reason/print/manipulate code - it would be more straight forward. >>> >>> Is there anything/anyone addressing this ? Or maybe Iâve missed an obvious trick somewhere? >>> >>> Tim >>> >>> Sent from my iPhone >>>

May 20, 2019