public void TestLastMissingElement()
{
int[] A = { 1, 2, 3 };
int result = MissingElementFinder.Find(A);
Assert.AreEqual(result, 4);
}
public void TestFirstMissingElement()
{
int[] A = { 2, 3, 4 };
int result = MissingElementFinder.Find(A);
Assert.AreEqual(result, 1);
}
public void TestMissingElementSingleElement()
{
int[] A = { 2 };
int result = MissingElementFinder.Find(A);
Assert.AreEqual(result, 1);
int[] B = { 1 };
result = MissingElementFinder.Find(B);
Assert.AreEqual(result, 2);
}