This addon doesn't do exactly what Sinon-QUnit does...the main issue being that Ember-QUnit wraps the QUnit tests differently and the Sinon sandboxing from sinon-qunit (or the shim in ember-sinon) wasn't working as a result due to loss of context. You should now be able to remove the sinon shim from this addon.
@csantero here you go: Ember-Sinon-QUnit
This addon doesn't do exactly what Sinon-QUnit does...the main issue being that Ember-QUnit wraps the QUnit tests differently and the Sinon sandboxing from sinon-qunit (or the shim in ember-sinon) wasn't working as a result due to loss of context. You should now be able to remove the sinon shim from this addon.