public void Should_convert_Comparison_to_Comparer()
{
Comparison<int> comparison = new Comparison<int>((x, y) => x.CompareTo(y));
ComparisonComparer<int> adapter = new ComparisonComparer<int>(comparison);
Assert.IsInstanceOf<IComparer<int>>(adapter);
Assert.IsInstanceOf<IComparer>(adapter);
}
public void Should_properly_sort_an_array()
{
//ArrayList accepts only Comparer in Sort() method.
Comparison<int> comparison = new Comparison<int>((x, y) => x.CompareTo(y));
ComparisonComparer<int> adapter = new ComparisonComparer<int>(comparison);
ArrayList a1 = new ArrayList() { 1, 5, 3, 3, 2, 4, 3 };
a1.Sort(adapter);
Assert.AreEqual(new ArrayList() { 1, 2, 3, 3, 3, 4, 5 }, a1);
}