public void testMath26() {
    String expression = "5 + 3 * 8 * 2 ** 2";
    int val = (int) (5d + 3d * 8d * Math.pow(2, 2));
    System.out.println("Expression: " + expression);
    System.out.println("Expected Result: " + val);
    Object result = test(expression);
    assertEquals(val, result);
  }