public void Array_with_one_element_returns_that_element()
{
int[] elements = new int[] { 0 };
const int unpaired = 0;
Assert.Equal(unpaired, OddCorrences.FindsUnpairedElement(elements));
}
public void Array_with_five_elements_returns_the_unpaired_element()
{
int[] elements = new int[] { 1, 1, 1, 2, 2 };
const int unpaired = 1;
Assert.Equal(unpaired, OddCorrences.FindsUnpairedElement(elements));
}
public void Array_with_one_million_elements_returns_the_unpaired_element()
{
int[] elements = new int[1000000];
const int unpaired = 2;
elements[0] = 2;
for (int i = 1; i < elements.Length; i++)
{
elements[i] = 1;
}
Assert.Equal(unpaired, OddCorrences.FindsUnpairedElement(elements));
}