public void ReturnInput_WhenOnlyOneElement()
{
var elements = new int [1];
var result = OddOccurenceFinder.FindMismatchingElement(elements);
result.Should().Be(elements[0]);
}
public void ReturnMismatchingElement(int[] elements, int expectedResult)
{
var result = OddOccurenceFinder.FindMismatchingElement(elements);
result.Should().Be(expectedResult);
}