Build cache does not cache test runs

Just chiming in here without fully understanding the problem. I see mention in the linked post regarding JaCoCo and append=true

Is it possible to

  1. Have a separate JaCoCo exec file for each test task
  2. Set append=false for each
  3. Use a JacocoMerge task to merge the multiple exec files into one
  4. Generate a JacocoReport from the merged exec file