Topic: Testing methods that return a range of results

Testing methods that return a range of results

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Posted By: Anonymous
Posted On: Tuesday, February 25, 2003 10:40 AM

Is there any easy way to test with JUnit a method that returns a range of values like, for instance, in a method that rolls a die and the result has to be between 1 and 6?

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Re: Testing methods that return a range of results

Posted By: David_Bates
Posted On: Saturday, March 1, 2003 03:16 PM

I think the sort of thing you'd end up with is something like this:


  private Dice myDice;

  public void setup() {
    myDice = new Dice();
  }

  public void testDiceThrow() {
    int lowest  = 1;
    int highest = 6;
    int result;

    result = myDice.throw(1, 6);
    assertTrue(result >= lowest && result <= highest);
  }

(I did this without looking at the API, so excuse me if I get some of the names wrong).

I know the example isn't perfect but I think you'll get the point.

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Re: Testing methods that return a range of results

Posted By: Anonymous
Posted On: Wednesday, February 26, 2003 05:55 AM

What exactly do you want to test? That the value is in the specified range, or something more specific?

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