public void PickFromEmptyListReturnsNull()
{
var qp = new QuantityPick(3, new List <decimal>());
var resultSet = qp.FindBestSummands();
Assert.That(resultSet, Is.Null);
}
public void CanNotPickSummandsWhenQuantitiesAreNotSuitable()
{
var qp = new QuantityPick(3, new List <decimal> {
2, 2
});
var resultSet = qp.FindBestSummands();
Assert.That(resultSet, Is.Null);
}
public void PickFromOneExactQuantity()
{
var qp = new QuantityPick(3, new List <decimal> {
3
});
var resultSet = qp.FindBestSummands();
Assert.That(resultSet, Is.Not.Null);
Assert.That(resultSet, Is.Not.Empty);
Assert.That(resultSet[0], Is.EqualTo(3));
}
public void CanPickBestSummandsWhenThereAreMoreThanOnePossibleSummandsCombination()
{
var qp = new QuantityPick(5, new List <decimal> {
2, 2, 1, 4, 6, 0
});
var resultSet = qp.FindBestSummands();
Assert.That(resultSet, Is.Not.Null);
Assert.That(resultSet.Count, Is.EqualTo(2));
Assert.That(resultSet.Any(x => x == 1));
Assert.That(resultSet.Any(x => x == 4));
}
public void CanPickFromTwoExactSummands()
{
var qp = new QuantityPick(3, new List <decimal> {
2, 1
});
var resultSet = qp.FindBestSummands();
Assert.That(resultSet, Is.Not.Null);
Assert.That(resultSet.Count, Is.EqualTo(2));
Assert.That(resultSet[0], Is.EqualTo(2));
Assert.That(resultSet[1], Is.EqualTo(1));
}