The doctor told me, it wouldn’t make a difference anyway. No matter what the test would show he would tell me the same thing: go home, isolate yourself, and come back if your fever worsens.
Once your area reach a certain number of persons affected, there is little use to try to track each one. When they have changed to a strategy of trying to protect the weak, and just slow down the spread. Testing doesn’t really add much value or information.