It appears I'm not getting an accurate health report out of Junit.
I am running Junit version 1.2 (the health amplification factor fix is in).
The problem I am seeing is I don't see the weather report changing, it is always reporting 100% from Junit. I tried different settings the amplification factor, but get the same result, always 100% health. I created a job with only 1 test in it, Junit reports the test as failing, and it shows up in my trend graph. Everything else with Junit seems to be working.
The weather is reported sunny with 1 test failing out of a total of 1 test 100% health. The build is reported as unstable, but the weather is sunny. I expect the health/weather to be 0% from Junit because 100% of the tests are failing.