fn fib(int n) int
{
  if (n <= 1)
    return n;

  return fib(n - 1) + fib(n - 2);
}

fn sum(uint a, uint b) uint
{
  return a + b;
}

printline("Test #1: fibonacci");
int result = fib(7);
if (result == 13)
  printline("Recurse test passed");
else
{
  printline("Recurse test failed");
  exit(1);
}

printline("Test #2: sum");
if (sum(2, 2) == 4)
  printline("Sum test passed");
else
{
  printline("Sum test failed");
  exit(1);
}