Squeak-dev March 2010

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158 participants
767 discussions

The Trunk: Morphic-laza.370.mcz
by commits＠source.squeak.org 03 Mar '10

03 Mar '10

Alexander Lazarević uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-laza.370.mcz ==================== Summary ==================== Name: Morphic-laza.370 Author: laza Time: 3 March 2010, 5:50:21.943 am UUID: 395d8f91-3f11-0840-9692-79f811ebbd4b Ancestors: Morphic-ar.369 Add to the windows menu: - contain every visible window (collapsed or not) - show a collapsed window in the list by putting () around the label - show a touched window by putting a leading * to the label - group windows by model (eg. Browsers are most likely always at the top of the list) - have a "close all like this" menu entry to close all windows of a same kind (eg. close all open inspectors) [won't touch any windows with changed content] - have a "close all but this" menu entry which does exactly like the above, but without closing the selected window =============== Diff against Morphic-ar.369 =============== Item was added: + ----- Method: TheWorldMainDockingBar>>allOtherWindowsLike: (in category 'submenu - windows') ----- + allOtherWindowsLike: window + ^ self allVisibleWindows reject: [:each | + each model name ~= window model name or: [each = window]]! Item was added: + ----- Method: TheWorldMainDockingBar>>allVisibleWindows (in category 'submenu - windows') ----- + allVisibleWindows + ^SystemWindow windowsIn: World satisfying: [ :w | w visible ]! Item was added: + ----- Method: TheWorldMainDockingBar>>closeAllWindowsLike: (in category 'submenu - windows') ----- + closeAllWindowsLike: window + self closeAllWindowsBut: window. + window model canDiscardEdits ifTrue: [window delete]! Item was changed: ----- Method: TheWorldMainDockingBar>>windowMenuFor:on: (in category 'submenu - windows') ----- windowMenuFor: window on: menu menu addItem: [ :item | item contents: 'Close'; target: window; selector: #delete ]; addItem: [ :item | + item + contents: 'Close all like this'; + target: self; + selector: #closeAllWindowsLike:; + arguments: { window } ]; + addItem: [ :item | + item + contents: 'Close all but this'; + target: self; + selector: #closeAllWindowsBut:; + arguments: { window } ]; + addItem: [ :item | item contents: 'Toggle Full Screen'; target: window; selector: #expandBoxHit ]! Item was added: + ----- Method: TheWorldMainDockingBar>>allWindowsLike: (in category 'submenu - windows') ----- + allWindowsLike: window + ^ self allVisibleWindows reject: [:each | each model ~= window model or: [each = window]]! Item was changed: ----- Method: TheWorldMainDockingBar>>listWindowsOn: (in category 'submenu - windows') ----- listWindowsOn: menu + | windows | + windows := SortedCollection sortBlock: [:winA :winB | + winA model name = winB model name + ifTrue: [winA label < winB label] + ifFalse: [winA model name < winB model name]]. + windows addAll: self allVisibleWindows. + windows ifEmpty: [ - | expanded | - expanded := SystemWindow windowsIn: World satisfying: [ :w | w isCollapsed not ]. - expanded ifEmpty: [ menu addItem: [ :item | item + contents: 'No Windows' translated; - contents: 'No open Windows' translated; isEnabled: false ] ]. + windows do: [ :each | - expanded do: [ :each | menu addItem: [ :item | item + contents: (self windowMenuItemLabelFor: each); - contents: (each label contractTo: 50); icon: (self colorIcon: each paneColor); target: each; selector: #comeToFront; subMenuUpdater: self selector: #windowMenuFor:on: arguments: { each }; + action: [ each activateAndForceLabelToShow; expand ] ] ].! - action: [ each activateAndForceLabelToShow ] ] ].! Item was added: + ----- Method: TheWorldMainDockingBar>>windowMenuItemLabelFor: (in category 'submenu - windows') ----- + windowMenuItemLabelFor: window + | s | + s := WriteStream on: String new. + window model canDiscardEdits ifFalse: [ s nextPut: $* ]. + window isCollapsed ifTrue: [ s nextPut: $( ]. + s nextPutAll: window label. + window isCollapsed ifTrue: [ s nextPut: $) ]. + ^s contents contractTo: 50! Item was added: + ----- Method: TheWorldMainDockingBar>>closeAllWindowsBut: (in category 'submenu - windows') ----- + closeAllWindowsBut: window + (self allOtherWindowsLike: window) do: [:each | + each model canDiscardEdits ifTrue: [each delete]]!

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Windows menu
by Alexander Lazarević 03 Mar '10

03 Mar '10

Hi! While doing squeak there are many times, where I need to find out how something works and I end up with a pile of windows of senders, inspectors, implementors ... After that the new windows menu is a good place for me to find where I left off on my journey through the system. I just thought the windows menu could do a little more to support this kind of workflow by: - containing every visible window (collapsed or not) - showing a collapsed window in the list by putting () around the label - showing a touched window by putting a leading * to the label - grouping windows by model (eg. Browsers are most likely always at the top of the list) - having a "close all like this" menu entry to close all windows of a same kind (eg. close all open inspectors) [won't touch any windows with changed content] - having a "close all but this" menu entry which does exactly like the above, but without closing the selected window Alex

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The Trunk: Tests-ar.53.mcz
by commits＠source.squeak.org 03 Mar '10

03 Mar '10

Andreas Raab uploaded a new version of Tests to project The Trunk: http://source.squeak.org/trunk/Tests-ar.53.mcz ==================== Summary ==================== Name: Tests-ar.53 Author: ar Time: 2 March 2010, 8:22:31.19 pm UUID: 485253c5-ac9d-364d-b950-bdac21bc4cd3 Ancestors: Tests-ar.52 Improved PackageDependencyTest now prints out dependencies upon failure so that we can see what the dependencies are and what we need to fix. =============== Diff against Tests-ar.52 =============== Item was changed: + ----- Method: PackageDependencyTest>>testPackage:dependsOnlyOn: (in category 'utilities') ----- - ----- Method: PackageDependencyTest>>testPackage:dependsOnlyOn: (in category 'tests') ----- testPackage: pkgName dependsOnlyOn: pkgList + "Ensure that the package with the given name depends only on the packages in pkgList. + NOTE: If you use this for fixing dependencies, classDeps includes the classes + and users from the package(s) not declared as dependents. Basically, you need + to fix all the references in classDeps to make the test pass." + | classDeps pi pkgDeps | + classDeps := IdentityDictionary new. - "Ensure that the package with the given name depends only on the packages in pkgList" - | classes pi deps | - classes := IdentitySet new. pi := PackageOrganizer default packageNamed: pkgName ifAbsent:[^self]. "unloaded" + pi classes do:[:pkgClass| + (classDeps at: (pkgClass superclass ifNil:[ProtoObject]) + ifAbsentPut:[OrderedCollection new]) add: pkgClass name, ' superclass'. + ]. - pi classes do:[:pkgClass| classes add: (pkgClass superclass ifNil:[ProtoObject])]. pi methods do:[:mref| | cm | cm := mref compiledMethod. 1 to: cm numLiterals do:[:i| | lit | ((lit := cm literalAt: i) isVariableBinding + and:[lit value isBehavior]) ifTrue:[(classDeps at: lit value ifAbsentPut:[OrderedCollection new]) add: cm methodClass asString, '>>', cm selector]]]. + pkgDeps := Dictionary new. + classDeps keys do:[:aClass| | pkg | - and:[lit value isBehavior]) ifTrue:[classes add: lit value]]]. - deps := Dictionary new. - classes do:[:aClass| | pkg | pkg := PackageOrganizer default packageOfClass: aClass ifNone:[nil]. pkg ifNil:[ + Transcript cr; show: 'WARNING: No package for ', aClass. + (classDeps removeKey: aClass) do:[:each| Transcript crtab; show: each]. - Transcript cr; show: 'WARNING: No package for ', pkg. ] ifNotNil:[ + (pkgDeps at: pkg name ifAbsentPut:[OrderedCollection new]) add: aClass. - (deps at: pkg name ifAbsentPut:[OrderedCollection new]) add: aClass. ]. ]. + (pkgDeps removeKey: pkgName ifAbsent:[#()]) + do:[:aClass| classDeps removeKey: aClass ifAbsent:[]]. - deps removeKey: pkgName ifAbsent:[]. pkgList do:[:pkg| + self assert: (pkgDeps includesKey: pkg). + (pkgDeps removeKey: pkg ifAbsent:[#()]) + do:[:aClass| classDeps removeKey: aClass ifAbsent:[]]. - self assert: (deps includesKey: pkg). - deps removeKey: pkg. ]. + classDeps keysAndValuesDo:[:class :deps| + Transcript cr; show: class name, ' dependencies:'. + deps do:[:each| Transcript crtab; show: each]. + ]. + self assert: pkgDeps isEmpty. + ! - self assert: deps isEmpty.!

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Trunk problems
by keith 03 Mar '10

03 Mar '10

It appears that the ability to start with a script file on the command line is broken. Loading code updates is also broken Keith

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The Trunk: Morphic-cmm.370.mcz
by commits＠source.squeak.org 03 Mar '10

03 Mar '10

Chris Muller uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-cmm.370.mcz ==================== Summary ==================== Name: Morphic-cmm.370 Author: cmm Time: 2 March 2010, 6:49:15.68 pm UUID: ea745757-8733-4ec9-a9f6-aabc939b465e Ancestors: Morphic-ar.369 Added hot-key to invoke pretty-print on a method. It is crucial for the computer to handle mundane code-formatting, because it allows code to "flow" into the system as quickly as one can type. The key is Shift+Command+S. The pretty-print command also now positions the cursor at the end of the code, where there is a chance you wish to continue the method, instead of at the beginning, where there is no chance of that. =============== Diff against Morphic-ar.369 =============== Item was changed: ----- Method: TextEditor>>prettyPrint: (in category 'menu messages') ----- + prettyPrint: decorated - prettyPrint: decorated "Reformat the contents of the receiver's view (a Browser)." - | selectedClass newText | + model selectedMessageName ifNil: [ ^ morph flash ]. - model selectedMessageName ifNil: [^ morph flash]. selectedClass := model selectedClassOrMetaClass. newText := selectedClass compilerClass new format: self text in: selectedClass notifying: self decorated: decorated. newText ifNotNil: + [ self + deselect ; + selectInvisiblyFrom: 1 + to: paragraph text size. - [self deselect; selectInvisiblyFrom: 1 to: paragraph text size. self replaceSelectionWith: (newText asText makeSelectorBoldIn: selectedClass). + self selectAt: self text size + 1 ]! - self selectAt: 1]! Item was added: + ----- Method: SmalltalkEditor>>invokePrettyPrint: (in category 'editing keys') ----- + invokePrettyPrint: dummy + self prettyPrint: false. + ^ true! Item was changed: ----- Method: SmalltalkEditor class>>initializeShiftCmdKeyShortcuts (in category 'keyboard shortcut tables') ----- initializeShiftCmdKeyShortcuts "Initialize the shift-command-key (or control-key) shortcut table." "NOTE: if you don't know what your keyboard generates, use Sensor kbdTest" "wod 11/3/1998: Fix setting of cmdMap for shifted keys to actually use the capitalized versions of the letters. TPR 2/18/99: add the plain ascii values back in for those VMs that don't return the shifted values." "SmalltalkEditor initialize" | cmds | super initializeShiftCmdKeyShortcuts. cmds := #( $a argAdvance: $b browseItHere: $e methodStringsContainingIt: $f displayIfFalse: $g fileItIn: $i exploreIt: $n referencesToIt: + $s invokePrettyPrint: $t displayIfTrue: $v pasteInitials: $w methodNamesContainingIt: ). 1 to: cmds size by: 2 do: [ :i | shiftCmdActions at: ((cmds at: i) asciiValue + 1) put: (cmds at: i + 1). "plain keys" shiftCmdActions at: ((cmds at: i) asciiValue - 32 + 1) put: (cmds at: i + 1). "shifted keys" shiftCmdActions at: ((cmds at: i) asciiValue - 96 + 1) put: (cmds at: i + 1). "ctrl keys" ].!

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Daily Commit Log
by commits＠source.squeak.org 03 Mar '10

03 Mar '10

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2010-March/002880.html Name: Compiler-nice.130 Ancestors: Compiler-nice.129 Provide a better fix for http://source.squeak.org/trunk/Compiler-nice.129.mcz BlockNode>>#addRemoteTemp: rootNode: was always sent to the TempVariableNode definingScope... But BlockNode>>#optimizedBlockHoistTempsInto: might already have moved the temporaries to next upper unoptimized BlockNode (definingBlock actualScope). This operation does not update the TempVariableNode definingScope (should it ?) Thus, only when definingScope temporaries does not include the TempVariableNode, should we attempt to remove it from actualScope temporaries.... Note: this does not solve (EventSensor>>#eventTickler) decompileWithTemps ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002881.html Name: Monticello-ar.376 Ancestors: Monticello-ul.375 Include Bert's old ExternalStructure initialize fix from Croquet. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002882.html Name: Kernel-mtf.389 Ancestors: Kernel-nice.387 7219: Improve Streams Usage Readability http://bugs.squeak.org/view.php?id=7219 Adds << to streams to be mostly like nextPutAll, but uses putOn: so that it works with any object. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002883.html Name: Kernel-mtf.388 Ancestors: Kernel-mtf.387 Made a note about the island and env instance variables in the Process class comment ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002884.html Name: Morphic-ar.368 Ancestors: Morphic-dtl.367 Add a preference to restore simple rectangular feedback for indicating changes. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002885.html Name: Tests-ar.52 Ancestors: Tests-ul.51 Add PackageDependencyTest to document and track package dependencies. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002886.html Name: Morphic-ar.369 Ancestors: Morphic-tfel.367, Morphic-ar.368 Merging Morphic-tfel.367 Do not apply gradients on menus more than once. This fixes a bug where submenus got increasingly whiter with gradient menus activated after opening and closing them several times. (Without closing the parent menu) ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002887.html Name: Tools-laza.197 Ancestors: Tools-dtl.196 Removed the source button from the debugger, because any selection (but tiles -> error) only showed an emtpy code pane. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002888.html Name: System-cmm.274 Ancestors: System-ar.273 - Fix. The third argument of ToolSet>>#browseMessageSet:autoSelect: is supposed to be a String or nil, not a Boolean. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-March/002889.html Name: SUnitGUI-cmm.48 Ancestors: SUnitGUI-klub.47 - Corrected reference to MessageSet>>#openMessageList:... to utilize the ToolSet api. =============================================

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The Trunk: SUnitGUI-cmm.48.mcz
by commits＠source.squeak.org 03 Mar '10

03 Mar '10

Chris Muller uploaded a new version of SUnitGUI to project The Trunk: http://source.squeak.org/trunk/SUnitGUI-cmm.48.mcz ==================== Summary ==================== Name: SUnitGUI-cmm.48 Author: cmm Time: 2 March 2010, 5:42:44.01 pm UUID: 05105d37-bba8-4553-a4ef-0b51030da6cb Ancestors: SUnitGUI-klub.47 - Corrected reference to MessageSet>>#openMessageList:... to utilize the ToolSet api. =============== Diff against SUnitGUI-klub.47 =============== Item was changed: ----- Method: TestRunner>>collectCoverageFor: (in category 'actions') ----- collectCoverageFor: methods | wrappers suite | wrappers := methods collect: [ :each | TestCoverage on: each ]. suite := self reset; suiteAll. [ wrappers do: [ :each | each install ]. [ self runSuite: suite ] ensure: [ wrappers do: [ :each | each uninstall ] ] ] valueUnpreemptively. wrappers := wrappers reject: [ :each | each hasRun ]. wrappers isEmpty ifTrue: [ UIManager default inform: 'Congratulations. Your tests cover all code under analysis.' ] ifFalse: + [ ToolSet + browseMessageSet: (wrappers collect: [ :each | each reference ]) + name: 'Not Covered Code (' , (100 - (100 * wrappers size // methods size)) printString , '% Code Coverage)' + autoSelect: nil ]. - [ MessageSet - openMessageList: (wrappers collect: [ :each | each reference ]) - name: 'Not Covered Code (' , (100 - (100 * wrappers size // methods size)) printString , '% Code Coverage)' ]. self saveResultInHistory!

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The Trunk: System-cmm.274.mcz
by commits＠source.squeak.org 03 Mar '10

03 Mar '10

Chris Muller uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-cmm.274.mcz ==================== Summary ==================== Name: System-cmm.274 Author: cmm Time: 2 March 2010, 5:40:54.969 pm UUID: 5e52c95f-2476-419a-b396-0a12b1b16da1 Ancestors: System-ar.273 - Fix. The third argument of ToolSet>>#browseMessageSet:autoSelect: is supposed to be a String or nil, not a Boolean. =============== Diff against System-ar.273 =============== Item was changed: ----- Method: ChangeSet>>checkForConversionMethods (in category 'fileIn/Out') ----- checkForConversionMethods "See if any conversion methods are needed" | tell choice smart restore renamed listAdd listDrop msgSet list | Preferences conversionMethodsAtFileOut ifFalse: [^ self]. "Check preference" structures ifNil: [^ self]. list := OrderedCollection new. renamed := OrderedCollection new. self changedClasses do: [:class | | newStruct sel oldStruct need rec | need := (self atClass: class includes: #new) not. need ifTrue: ["Renamed classes." (self atClass: class includes: #rename) ifTrue: [ rec := changeRecords at: class name. rec priorName ifNotNil: [ (structures includesKey: rec priorName) ifTrue: [ renamed add: class. need := false]]]]. need ifTrue: [need := (self atClass: class includes: #change)]. need ifTrue: [oldStruct := structures at: class name ifAbsent: [need := false. #()]]. need ifTrue: [ newStruct := (Array with: class classVersion), (class allInstVarNames). need := (oldStruct ~= newStruct)]. need ifTrue: [sel := #convertToCurrentVersion:refStream:. (#(add change) includes: (self atSelector: sel class: class)) ifFalse: [ list add: class]]. ]. list isEmpty & renamed isEmpty ifTrue: [^ self]. "Ask user if want to do this" tell := 'If there might be instances of ', (list asArray, renamed asArray) printString, '\in a project (.pr file) on someone''s disk, \please ask to write a conversion method.\' withCRs, 'After you edit the conversion method, you''ll need to fileOut again.\' withCRs, 'The preference conversionMethodsAtFileOut in category "fileout" controls this feature.'. choice := UIManager default chooseFrom: 'Write a conversion method by editing a prototype These classes are not used in any object file. fileOut my changes now. I''m too busy. fileOut my changes now. Don''t ever ask again. fileOut my changes now.' withCRs title: tell. choice = 4 ifTrue: [Preferences disable: #conversionMethodsAtFileOut]. choice = 2 ifTrue: ["Don't consider this class again in the changeSet" list do: [:cls | structures removeKey: cls name ifAbsent: []]. renamed do: [:cls | | nn | nn := (changeRecords at: cls name) priorName. structures removeKey: nn ifAbsent: []]]. choice ~= 1 ifTrue: [^ self]. "exit if choice 2,3,4" listAdd := self askAddedInstVars: list. "Go through each inst var that was added" listDrop := self askRemovedInstVars: list. "Go through each inst var that was removed" list := (listAdd, listDrop) asSet asArray. smart := SmartRefStream on: (RWBinaryOrTextStream on: '12345'). smart structures: structures. smart superclasses: superclasses. (restore := self class current) == self ifFalse: [ self class newChanges: self]. "if not current one" msgSet := smart conversionMethodsFor: list. "each new method is added to self (a changeSet). Then filed out with the rest." self askRenames: renamed addTo: msgSet using: smart. "renamed classes, add 2 methods" restore == self ifFalse: [self class newChanges: restore]. msgSet isEmpty ifTrue: [^ self]. self inform: 'Remember to fileOut again after modifying these methods.'. + ToolSet + browseMessageSet: msgSet + name: 'Conversion methods for ', self name + autoSelect: nil! - ToolSet browseMessageSet: msgSet name: 'Conversion methods for ', self name autoSelect: false.!

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Trax
by Stephen Pair 03 Mar '10

03 Mar '10

With all of the recent interest in version control for squeak (and git, bazaar, mercurial, etc), I figured I should mention a project I was working on a couple years ago and which has stagnated (due to my shift in attention to another project). I've never published this code before (and haven't just yet, but will if there is interest). I've uploaded a vide here: http://www.vimeo.com/9799424 Trax was inspired by git (but does not use git). Its repository format is very similar (but not identical) to git. There are some differences in how I chose to handle repository replication and merging of tags. I hope others working on similar projects might find it useful (for either reusing code or just some ideas). I certainly prefer an all Smalltalk version control system (all things being equal), however it might ultimately be more practical to leverage the countless work put into one of the popular version control systems and taking some of Trax and integrating it with git (or bazaar, mercurial or whatever) would be interesting. Sorry for the crude nature of the video, it was originally meant only as a dry run and to help me create a script for a more polished video (and sorry for no docs, I do prefer written, searchable docs to videos, but videos are much quicker to produce). Below is the video description and a few screenshots: This video is a demonstration of Trax, a git inspired object versioning system for squeak. Any object that can be serialized can be stored and versioned in Trax and the lineage of those objects can be browsed in the version history browser. Additionally, I plugged Monticello packages into Trax such that Smalltalk source code can be versioned. I modified the package browser to make it possible to commit packages directly from it and I created an n-way merge tool. Below are some notable points where various topics are discussed. Sorry for the watermark and disorganization...this video was a first cut that was originally intended to just be used in creating a script for a final, more polished presentation. Due to a lack of time and the need to work on another project, I've decided to just publish this raw video in the hopes it might inspire others to pickup the code, reuse it in other projects, or just get a few ideas. 00:00 - intro 07:00 - discussion of the underlying file structure 26:30 - introduction of the version history browser 36:00 - introduction to the Smalltalk n-way merge tool 38:40 - demo of a 3 way merge 41:00 - demo of committing code from the package browser (and showing the lineage of a 3 way merge in the version history browser) 53:35 - demo of tagging a version 54:00 - demo of publishing to one repo, then replicating to another repo Here is a screen shot of the version browser: Here is a screenshot of the Smalltalk n-way code merge tool (showing a 3-way merge in progress): And, here is a screenshot of the commit dialog: - Stephen

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Re: 0006721: Identity dictionarys sometimes can't find their keys
by Jerome Peace 02 Mar '10

02 Mar '10

Hi Levente, Thanks. >Levente Uzonyi leves at elte.hu >Tue Mar 2 02:21:38 UTC 2010 wrote: > >On Sun, 28 Feb 2010, Jerome Peace wrote: > >> >> Levente Uzonyi leves at elte.hu >> Sun Feb 28 17:56:00 UTC 2010 replied: >> >> >>> nil was always a valid key for Dictionary and IdentityDictionary. Sets >>> were the collections which couldn't contain nil. >> >> >>> Levente >> >> Ha. I knew there was a good reason for having someone look over your shoulder as you program. I stand corrected. >> >> Never the less, the tests were useful in finding bugs. >> >> Even if 'nil' can be a legitimate key its presence is often the sign of a bug. The only instance my test found pointed to the initialization of GeeMailMorph being misplaced to UndefinedObject class. So even though I stumbled on to it with a mis-assumption the test found it. I think it's valuable to go looking, then note the legitimate exceptions in the test. >> >> I would love to see my tests in the image and your test improvements as well. I am still looking for a MC savvy code partner to take over some of the driving. > >I added the general purpose integrity tests to the Trunk. Details here: >http://lists.squeakfoundation.org/pipermail/squeak-dev/2010-February/145266… >I think a test which fails when an object has a valid (and supported) >state is simply wrong. Cool. Thanks for the help. On reflection, I agree that as an image acceptance test, the 'nil' key test doesn't hack it. On the other hand it does makes an excellent probe. Still not having it in the test suite is correct. I am stuck working as a one man team. So I very much appreciate your supplying a second opinion. Its damn hard to double guess oneself. The other important result is there is a test IN THE IMAGE for this critical bug which is known to happen. Good work. > >Here are a few links which cover MC: >http://wiki.squeak.org/squeak/43 >http://www.wiresong.ca/Monticello/UserManual/ >http://wiki.squeak.org/squeak/1287 >http://www.youtube.com/watch?v=eCwzcOk6vY4 >http://vimeo.com/groups/squeak/videos/7783848 >etc. (probably SBE/PBE has a chapter about MC too) > Thank you again. I would like to master MC. At the very least it would allow me to be a more knowledgeable Luddite. Besides at the moment there seems to be no help for it. Even Etoys is committing to it. Sigh. Thanks for the help. I appreciate the partnering. Yours in curiosity and service, --Jerome Peace "In theory, there is no difference between theory and practice. But, in practice, there is." --Yogi >

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