[Pharo-users] Generating test data

My current project (as it grows) becomes quite a complex piece of software. Most of my tests have a huge preamble for setting up test model data for the test. Based on inheritance there are certain aspects unified to save some work. But test data tends to need all permutations of all dimensions of the data to test properly. I wanted to ask what approaches are there for constructing sample data for complex tests. thanks, Norbert