I have worked out a method for running those 461 Autopilot Unity tests in batches with a command argument that posts the results into a log file. The tutorial is here. Click on the Autopilot Unity Tests link to go down the page.
I find this more convenient than running the tests one at a time or all at once. Which were the only options.
For example, this command will run five tests.
and this command will run 30 tests.
autopilot run -o . unity.tests.launcher.test_capture
That one is untested by me but it should work. So, far I have run 33 of the 57 batches. I am working my way from the smallest batch to the largest batch, the 30 tests batch.
autopilot run -o . unity.tests.test_panel.PanelWindowButtonsTests
Update: I have just completed all the batch tests. It takes something like 1 hour 45 minutes. This is longer than running the tests all at once but I can stop and start whenever I like and I do have some idea of where I am in the test series.