public void printedEquals(ATObject input, String expected) {
   try {
     assertEquals(expected, input.meta_print().javaValue);
   } catch (InterpreterException e) {
     fail(e.getMessage());
   }
 }
 public void evalAndCompareTo(String input, String output) {
   try {
     ATObject result = evalAndReturn(input);
     if (result != null) {
       assertEquals(output, result.meta_print().javaValue);
     }
   } catch (InterpreterException e) {
     fail(e.getMessage());
   }
 }