public async void SelectorSetsNext()
{
// Arrange
var selector = new BaseSelector();
var expectedOption = new BaseStep(name: "expectedOption");
var option = new BaseStep(name: "option");
var options = new List <Step <SimpleWorkflowState> >()
{
expectedOption, option
};
selector.SetOptions(options);
// Act
var result = await selector.Execute(_workflowState);
// Assert
Assert.Single(result.WorkflowChain);
Assert.Equal(_originalWorfklowState, result.State);
Assert.Equal(selector.Next(), expectedOption);
}