From only updating my code from ember-cli 0.1.12 to 0.2.0, my tests started failing with:
Called start() while already started (test's semaphore was 0 already)
It seems very similar to this: Weird behaviour in test runner after update to 1.10 + 0.1.15 combo
Did anyone else come across this? I’ve reverted back to my previous version of Ember CLI 0.1.12 in the meantime, but I don’t want to stray too far away from the latest version.