Since we turned into “Virtualized Tree Layout” we are spending too much time to guarantee that all the things still working after each change.
This problem is worst when when there are changes in “onViewportChanged” method. We think that end to end test maybe helps us to make this time shorter.
Do you have some indications on what tools can be used to interact better with GoJS?
I suppose you could search this forum for information about automated testing tools, if that is the kind of thing you are looking for.
You might be interested in the Robot.js class that is in the extensions subdirectory. Simulating Input Events .