public void CannotPartitionWhenYieldDoesNotProducePositiveInteger()
{
// arrange
var data = new[] { 1, 2, 3 };
// act
Assert.ThrowsDelegate code = () => data.Partition(i => -1);
// assert
Assert.Throws<IndexOutOfRangeException>(code);
}
public void ShouldSplitOddsAndEvens()
{
// arrange
var data = new[] { 1, 2, 3, 4, 5 };
// act
var result = data.Partition(i => i % 2);
var odds = result[1];
var evens = result[0];
// assert
Assert.Equal(odds.ToArray(), new[] { 1, 3, 5 });
Assert.Equal(evens.ToArray(), new[] { 2, 4 });
}
public void Partition_PredicateNull ()
{
IEnumerable<int> s = new[]{1};
Func<int, bool> f = null;
s.Partition (f);
}
