/**
 * 
 */
package de.fhswf.in.inf.java1.aufgabe13;

import org.junit.Test;

import de.fhswf.in.inf.java1.aufgabe12.UPN;

/**
 * Test the UPN class.
 *
 * @author $Author: $
 * @version $Revision: $, $Date: $ UTC
 */
public class GeneralTests
{

   /**
    * Test method for
    * {@link de.fhswf.in.inf.java1.aufgabe12.UPN#calculate(java.lang.String)}.
    */
   @Test(expected = IllegalArgumentException.class)
   public final void testInvalidNumbers()
   {
      // UPN is tested
      UPN tester = new UPN();

      // Test
      tester.calculate("1g 3 +");
   }
   
   /**
    * Test method for
    * {@link de.fhswf.in.inf.java1.aufgabe12.UPN#calculate(java.lang.String)}.
    */
   @Test(expected = IllegalArgumentException.class)
   public final void testInvalidOperator()
   {
      // UPN is tested
      UPN tester = new UPN();

      // Test
      tester.calculate("1 cinus");
   }
   
   /**
    * Test method for
    * {@link de.fhswf.in.inf.java1.aufgabe12.UPN#calculate(java.lang.String)}.
    */
   @Test(expected = IllegalArgumentException.class)
   public final void testMissingOperands()
   {
      // UPN is tested
      UPN tester = new UPN();

      // Test
      tester.calculate("1 +");
   }
   
   /**
    * Test method for
    * {@link de.fhswf.in.inf.java1.aufgabe12.UPN#calculate(java.lang.String)}.
    */
   @Test(expected = IllegalArgumentException.class)
   public final void testDevisionByZero()
   {
      // UPN is tested
      UPN tester = new UPN();

      // Test
      tester.calculate("1 0 /");
   }

}