public void GetSingleNumber_WhenCalled_ReturnItemThatExistOneAtArray(int[] nums, int expected)
{
var helper = new SingleNumber();
var result = helper.GetSingleNumber(nums);
Assert.That(result, Is.EqualTo(expected));
}
public int SingleNumber(int[] nums)
{
var number = new SingleNumber(nums);
return(number.GetSingleNumber());
}