Validation using scenario runners

The automated validation of one or more test cases in a validation pass. The validation pass is enabled using a plurality of scenario runners, which are executable components that respond to instructions to run one or more scenarios of a validation pass by beginning to run through such scenarios during the validation pass. The validation pass may be associated with a maximum time such that upper limits on how long the scenario runners may run is set. This likewise limits the time it takes to validate the results of the scenario. The scenario runners provide events that occur during the running of their respective scenarios into an event collector. The events of the validation pass may then be evaluated against one or more test cases to determine whether or not the events have a state indicative of a success or failure of each test cases.