After updating the TestNG plugin to 1.12, the new feature from
JENKINS-20985 caused our tests to pass regardless of failures/skips in our TestNG results. By default, the threshold is set to 100% if users have not configured the plugin yet.
This means that by default, a test will require MORE THAN 100% skips/failures in order to mark the build as unstable/failed from TestNG results. It would make more sense if the default was set to 0, and the thresholdMode set to 1. This way, a single failure/skip will cause the build to be unstable/fail like in previous versions.