public void TestOdometerWithEmptyArrayIsNoOp()
{
int[] arr = { };
Odometer.Count(arr, 1);
Assert.AreEqual(0, arr.Length);
}
public void TestOdometerDecrementUnderflow()
{
int[] arr = { 0, 0, 0, 0 };
int[] expected = { 9, 9, 9, 9 };
Odometer.Count(arr, -1);
for (int i = 0; i < arr.Length; i++)
{
Assert.AreEqual(expected[i], arr[i]);
}
}
public void TestOdometerExampleCases()
{
int[] arr1 = { 4, 3, 9, 5 };
int[] expected1 = { 4, 3, 9, 6 };
Odometer.Count(arr1, 1);
int[] arr2 = { 4, 3, 4, 9 };
int[] expected2 = { 4, 3, 5, 0 };
Odometer.Count(arr2, 1);
int[] arr3 = { 9, 9, 9, 9 };
int[] expected3 = { 1, 0, 0, 0 };
Odometer.Count(arr3, 1);
for (int i = 0; i < 4; i++)
{
Assert.AreEqual(expected1[i], arr1[i]);
Assert.AreEqual(expected2[i], arr2[i]);
Assert.AreEqual(expected3[i], arr3[i]);
}
}
public void TestOdometerBadArgument()
{
int[] arr = { 1, 3, 10, 0 };
Odometer.Count(arr, 1);
}
