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Continuous testing of a terminal font

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Ricardo Bánffy
Ricardo Bánffy

A description of how and why my 3270 terminal font is tested and how other similar artifacts can be tested

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Continuous Testing of a Terminal Font
Why this font?
What is a font after all?
If it’s software, how do you test it?
How do I test it ● The auxiliary programs can be tested with the usual tools we already know ● Github, Bitbucket, and Gitlab are easy to integrate with 3rd parties ● This is travis.yaml
In the Makefile
Did you notice? ● On the first lines ● These are for the simple utilities that build things like grids and sample images
Some rough edges ● Rendering problems require some degree of visual inspection ● Different platforms render differently (Windows, Mac, and Linux, each have their own quirks
What else?
Google Fonts! ● Insanely high bar ● Very comprehensive tooling (Font Bakery) tests EVERYTHING ● We’re not there yet
So? ● It’s doable: fonts are software ● Ensures a base level of quality – This font is now distributed with Debian and Ubuntu, so it’s no longer just my hobby project – other people use it. ● The same machinery you use to test your software can test pretty much anything
Demo time!
?
If you want to know more (or to get the font): https://github.com/rbanffy/3270font

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Continuous testing of a terminal font

  • 1. Continuous Testing of a Terminal Font
  • 3.
  • 4.
  • 5. What is a font after all?
  • 6.
  • 7. If it’s software, how do you test it?
  • 8. How do I test it ● The auxiliary programs can be tested with the usual tools we already know ● Github, Bitbucket, and Gitlab are easy to integrate with 3rd parties ● This is travis.yaml
  • 10. Did you notice? ● On the first lines ● These are for the simple utilities that build things like grids and sample images
  • 11. Some rough edges ● Rendering problems require some degree of visual inspection ● Different platforms render differently (Windows, Mac, and Linux, each have their own quirks
  • 12.
  • 14. Google Fonts! ● Insanely high bar ● Very comprehensive tooling (Font Bakery) tests EVERYTHING ● We’re not there yet
  • 15. So? ● It’s doable: fonts are software ● Ensures a base level of quality – This font is now distributed with Debian and Ubuntu, so it’s no longer just my hobby project – other people use it. ● The same machinery you use to test your software can test pretty much anything
  • 17. ?
  • 18. If you want to know more (or to get the font): https://github.com/rbanffy/3270font