Testing Babylon projects

Questions
1

Considering the fact that Babylon rendering is visual in nature on a canvas, asserting that the right results is achieved with unit testing may be a bit problematic.

It is easy enough to mock out the babylon classes for unit tests to ensure that the data structure is correct but is there a way where you can do proximate render testing?
Doing pixel by pixel testing is just begging to be brittle, but is there from a industry perspective a standard around this problem space?

2

Yeah visual testing is never something very “obvious”, but we indeed do pixel testing for them, false positives happen sometimes but it works fine in general :smiley: You can take a look at how our testing is structured here: Babylon.js/packages/tools/tests at master · BabylonJS/Babylon.js (github.com) (especially the visualization tests)

2 Likes
3

That is a very good suggestion, thank you very much, will have a look.