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Martín Dias edited this page Oct 14, 2023 · 1 revision

The project counts with test packages that pixel-compare the actual output of the render with PNGs previously exported in the 'tests/' directory of this repo. If any pixel doesn't match with the expected output, the test fails. Browse AeCanvasTest to see it.

How does it work?

A tricky part is how to locate the expected PNGs in the filesystem. To do it, the AeFilesystemResources will look into the registered Iceberg repositories for one named 'Alexandrie' (case-insensitive). This means that the test will ERROR if the repository is not registered at Iceberg. Normally the repository is registered after Metacello load.

CI jobs (smalltalk-ci via '.ci.ston') execute a pre-install script (located in the 'scripts/' directory) that registers the repository explicitly in Iceberg.

Steps to debug CI locally:

  1. cd to some tmp directory
  2. git clone https://github.com/pharo-graphics/Alexandrie.git && export GITHUB_WORKSPACE="$(pwd)/Alexandrie" && ~/d/pharo/smalltalkCI/bin/smalltalkci -s Pharo64-11 Alexandrie/.ci.ston
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