Fibonacci { public static int calculate(int n) { if (n == 0 || n == 1) return n; return calculate(n - 1) + calculate(n - 2); }  static int calculate(int n);  }
@Test public void testZero() { assertThat(Fibonacci.calculate(0), is(0)); }
@Test public void testOne() { assertThat(Fibonacci.calculate(1), is(1)); }
@Test public void testNine() { assertThat(Fibonacci.calculate(9), is(34)); }
@Test public void testMax() { assertThat(Fibonacci.calculate(25), is(75025)); }