public void SingleNumberTest3()
{
SingleNumberArray singleNumberArray = new SingleNumberArray();
int[] nums = new int[] { 1 };
int res = singleNumberArray.SingleNumber(nums);
Assert.IsTrue(res == 1);
}
public void SingleNumberTest2()
{
SingleNumberArray singleNumberArray = new SingleNumberArray();
int[] nums = new int[] { 4, 1, 2, 1, 2 };
int res = singleNumberArray.SingleNumber(nums);
Assert.IsTrue(res == 4);
}