How to make a Unit Test out of a Constructor

I am trying to make a Unit Test out of a public Constructor.

Using Visual Studio 2012

How can I create a simple Unit Test out of this Constructor.

    public ScenarioSelectViewModel(IEventRecorderSvc service)
    {
        eventRecordingSvc = svc;

        OkCmd = new DelegateCommand<Window>(
            OkCmd Executed,
            OkCmd CanExecute);

        RefreshAvailableScenarioStepExecutionsCommand = new       DelegateCommand<object>(
            RefreshAvailableScenarioStepExecutionsCommandExecuted,
            RefreshAvailableScenarioStepExecutionsCommandCanExecute);

        if (RefreshAvailableScenarioStepExecutionsCommand.CanExecute(null))
        {
            RefreshAvailableScenarioStepExecutionsCommand.Execute(null);
        }
    }