public void CreateCombinations_100FeaturesNoConstraints_Generate10000UniqueCombinations()
{
// Arrange
var numberOfFeatures = 100;
var features = new List <Feature>();
for (int i = 0; i < numberOfFeatures; i++)
{
features.Add(new Feature($"feature #{i}", 1, 5));
}
var constraints = new List <IConstraint>();
var candidate = new CreateCombinationsService(
new ConstraintValidatorFactory(),
new RandomCombinationGenerator(new PseudoRandomizer(12567)));
// Act
var maxNumberOfAttempts = 10000;
var combinationList = new List <ICombination>();
candidate.CreateCombinations(
features,
constraints,
c => combinationList.Add(c),
() => true,
maxNumberOfAttempts);
// Assert
Assert.AreEqual(maxNumberOfAttempts, combinationList.Count);
Assert.AreEqual(combinationList.Count, combinationList.Distinct().Count());
}
private static IEnumerable <ICombination> CreateCombinations(
IEnumerable <Feature> features,
int numberOfCombinations)
{
ArgumentChecks.AssertNotNull(features, nameof(features));
var createCombinationsService = new CreateCombinationsService(
new ConstraintValidatorFactory(),
new RandomCombinationGenerator(new PseudoRandomizer(1257)));
var combinationList = new List <ICombination>();
createCombinationsService.CreateCombinations(
features,
new IConstraint[0],
c => combinationList.Add(c),
() => combinationList.Count < numberOfCombinations,
numberOfCombinations * 2);
return(combinationList);
}