public void TestGetRandomItemsWithEmptyItemSet()
{
var randomItemRetriever = new RandomItemRetriever <IProbabilityWeightedItem>(_randomGenerator,
Enumerable.Empty <IProbabilityWeightedItem>());
randomItemRetriever.NextItem();
}
public void TestGetRandomItemsWithEmptyItemSet()
{
var randomItemRetriever = new RandomItemRetriever<IProbabilityWeightedItem>(_randomGenerator,
Enumerable.Empty<IProbabilityWeightedItem>());
randomItemRetriever.NextItem();
}
public void TestGetRandomItemsInNonUniformDistribution()
{
var items = GetNonUniformlyDistributedItems(10).ToList();
var randomItemRetriever = new RandomItemRetriever <IProbabilityWeightedItem>(_randomGenerator, items);
var actualItems = Enumerable.Range(0, 10)
.Select(counter => randomItemRetriever.NextItem())
.ToList();
var expectedItems = new List <IProbabilityWeightedItem>
{
items[0],
items[1],
items[1],
items[2],
items[2],
items[2],
items[3],
items[3],
items[3],
items[3]
};
Assert.IsTrue(expectedItems.SequenceEqual(actualItems));
}
public void TestGetRandomItemsInNonUniformDistribution()
{
var items = GetNonUniformlyDistributedItems(10).ToList();
var randomItemRetriever = new RandomItemRetriever<IProbabilityWeightedItem>(_randomGenerator, items);
var actualItems = Enumerable.Range(0, 10)
.Select(counter => randomItemRetriever.NextItem())
.ToList();
var expectedItems = new List<IProbabilityWeightedItem>
{
items[0],
items[1],
items[1],
items[2],
items[2],
items[2],
items[3],
items[3],
items[3],
items[3]
};
Assert.IsTrue(expectedItems.SequenceEqual(actualItems));
}
