public void ReplaceDuplicatesInPlaceTest_HappyCase()
{
int uniqueElems = ReplaceDuplicatesInPlace.Execute(new [] { 1, 1, 2 });
Assert.AreEqual(2, uniqueElems, "There should have been 2 unique elements in the array");
}
public void ReplaceDuplicatesWithEmptyArray()
{
int uniqueElems = ReplaceDuplicatesInPlace.Execute(new int [] {});
Assert.AreEqual(0, uniqueElems, "There must be no unique elements in an empty array");
}