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Re: Testing that no grob is created

From: Han-Wen Nienhuys
Subject: Re: Testing that no grob is created
Date: Fri, 17 Jun 2022 14:14:32 +0200

On Fri, Jun 17, 2022 at 2:11 PM Dan Eble <> wrote:
> I have a regression test that should fail if a BarLine grob is created.  It 
> is sufficient to override BarLine.glyph-name to make it obvious in the visual 
> diff.
> Is there a simpler, more direct, or more robust way to test this?

You could add a callback in the System grob (or in a similar grouping
Grob at staff level) that counts the number of bar lines included in
the 'elements property.

Han-Wen Nienhuys - -

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