I'm not sure this is helpful, but I just read about a font called ahem that
is designed to help with layout testing. The glyphs are assigned a
predefined square so it should result in predictable tests.

https://www.w3.org/Style/CSS/Test/Fonts/Ahem/
https://github.com/Hydrock/AhemFont

Best,
Karl

On Wed, Jun 8, 2022 at 3:02 PM <commits at source.squeak.org> wrote:

> Marcel Taeumel uploaded a new version of MorphicTests to project The Trunk:
> http://source.squeak.org/trunk/MorphicTests-mt.87.mcz
>
> ==================== Summary ====================
>
> Name: MorphicTests-mt.87
> Author: mt
> Time: 8 June 2022, 3:02:18.474335 pm
> UUID: 4c18dae8-f267-4c41-a3d4-7027c7a964cd
> Ancestors: MorphicTests-mt.86
>
> Fixes several tests that only fail if the system uses (pre-rendered)
> StrikeFonts, which is 100%, 125%, or 150% scale factor in a clean image.
>
> =============== Diff against MorphicTests-mt.86 ===============
>
> Item was changed:
>   ----- Method: TextAnchorTest>>testHavingAnAnchorInTheCenter (in category
> 'tests') -----
>   testHavingAnAnchorInTheCenter
>
>         self
>                 assert: (anchoredMorph ownerChain includes: textMorph);
> +               assert: anchoredMorph topLeft >= textMorph topLeft!
> -               assert: anchoredMorph topLeft > textMorph topLeft!
>
> Item was changed:
>   ----- Method:
> TextAnchorTest>>testHavingAnAnchorInTheCenterWithHorizontalPadding (in
> category 'tests') -----
>   testHavingAnAnchorInTheCenterWithHorizontalPadding
>
>         anchoredMorph textAnchorProperties padding. 30 at 0.
>
>         self
>                 assert: (anchoredMorph ownerChain includes: textMorph);
> +               assert: (anchoredMorph topLeft >= textMorph topLeft)!
> -               assert: (anchoredMorph topLeft > textMorph topLeft)!
>
> Item was changed:
>   ----- Method: TextAnchorTest>>testLayoutingSetsTheMorphPosition (in
> category 'tests') -----
>   testLayoutingSetsTheMorphPosition
>
>         anchoredMorph := Morph new.
>         anchoredMorph textAnchorProperties
>                 anchorLayout: #inline.
>         anchorAttribute anchoredMorph: anchoredMorph.
>         self prepareTextMorph.
>
>         textMorph position: 100 at 100.
>
> +       self assert: anchoredMorph position >= (100 at 100).!
> -       self assert: anchoredMorph position > (100 at 100).!
>
>
>
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