public void get_predictor_throws_exception_if_given_collection_in_constructor_does_not_contain_any_matching_predictor()
{
//Given
string id = "id";
string otherId = "other";
IEnumerable <IValuePredictor> predictors = new List <IValuePredictor>
{
new ValuePredictorMock(id),
};
var provider = new ValuePredictorProvider(predictors);
//When
void act() => provider.GetPredictor(otherId);
//Then
Assert.Throws <WrongAlgorithmNameSerExc>(act);
}
public void get_predictor_throws_exception_if_given_collection_in_constructor_does_not_return_single_or_default_on_filtering_by_given_id()
{
//Given
string id = "id";
IEnumerable <IValuePredictor> predictors = new List <IValuePredictor>
{
new ValuePredictorMock(id),
new ValuePredictorMock(id)
};
var provider = new ValuePredictorProvider(predictors);
//When
void act() => provider.GetPredictor(id);
//Then
Assert.Throws <InvalidOperationException>(act);
}
public void get_predictor_returns_matching_predictor_if_exists_in_given_collection()
{
//Given
string id = "id";
string otherId = "other";
var matchingPredictor = new ValuePredictorMock(id);
IEnumerable <IValuePredictor> predictors = new List <IValuePredictor>
{
matchingPredictor,
new ValuePredictorMock(otherId)
};
var provider = new ValuePredictorProvider(predictors);
//When
var result = provider.GetPredictor(id);
//Then
result.Should().BeSameAs(matchingPredictor);
}