public virtual void SetupScenario()
{
_reportTarget = CreateReportTarget();
_scenarioRunner = new ScenarioRunner(this, _reportTarget);
foreach (var step in ScenarioMapper.GetStepInvokers(this))
{
_scenarioRunner.AddStep(step);
}
_scenarioRunner.ReportScenario();
_scenarioRunner.RunGivens();
_scenarioRunner.RunWhen();
_scenarioRunner.EnsureAtLeastOneThenExists();
//thens are executed by NUnit
}