On 25 January 2013 15:42,  <commits at source.squeak.org> wrote:
> Frank Shearar uploaded a new version of Tests to project The Trunk:
> http://source.squeak.org/trunk/Tests-fbs.186.mcz
>
> ==================== Summary ====================
>
> Name: Tests-fbs.186
> Author: fbs
> Time: 25 January 2013, 3:42:02.836 pm
> UUID: 810556e8-7f89-4409-94bf-d4712e5e3f27
> Ancestors: Tests-fbs.185
>
> Tests for Lars' Mantis report #7709: Image Segments can't be written to file anymore.
>
> =============== Diff against Tests-fbs.185 ===============
>
> Item was changed:
>   SystemOrganization addCategory: #'Tests-Exceptions'!
>   SystemOrganization addCategory: #'Tests-Files'!
>   SystemOrganization addCategory: #'Tests-Compiler'!
>   SystemOrganization addCategory: #'Tests-Digital Signatures'!
>   SystemOrganization addCategory: #'Tests-Object Events'!
>   SystemOrganization addCategory: #'Tests-System-Support'!
>   SystemOrganization addCategory: #'Tests-Bugs'!
>   SystemOrganization addCategory: #'Tests-ObjectsAsMethods'!
>   SystemOrganization addCategory: #'Tests-PrimCallController'!
>   SystemOrganization addCategory: #'Tests-Release'!
>   SystemOrganization addCategory: #'Tests-Utilities'!
>   SystemOrganization addCategory: #'Tests-VM'!
>   SystemOrganization addCategory: #'Tests-Hex'!
>   SystemOrganization addCategory: #'Tests-Monticello'!
>   SystemOrganization addCategory: #'Tests-Localization'!
>   SystemOrganization addCategory: #'Tests-FilePackage'!
>   SystemOrganization addCategory: #'Tests-Finalization'!
>   SystemOrganization addCategory: #'Tests-Dependencies'!
>   SystemOrganization addCategory: #'Tests-Monticello-Mocks'!
>   SystemOrganization addCategory: #'Tests-Environments'!
>   SystemOrganization addCategory: #'Tests-Monticello-Utils'!
> + SystemOrganization addCategory: #'Tests-System-Object Storage'!
>
> Item was added:
> + TestCase subclass: #ImageSegmentTest
> +       instanceVariableNames: ''
> +       classVariableNames: ''
> +       poolDictionaries: ''
> +       category: 'Tests-System-Object Storage'!
>
> Item was added:
> + ----- Method: ImageSegmentTest>>testImageSegmentsShouldBeWritableToaFile (in category 'as yet unclassified') -----
> + testImageSegmentsShouldBeWritableToaFile
> +       self shouldnt: [
> +               ImageSegment new
> +               copyFromRoots: (Array with: TestCase) sizeHint: 100;
> +               extract;
> +               writeToFile: 'TestCase';
> +               yourself] raise: Error.!

I opted for the lamer but cleaner option of merge-fileout-newimage-filein.

frank