@Test
 public void testStealGoldMessage() {
   card.triggerEffect(player1, player2);
   String str = "Victim has just invested in Thief's ponzi scheme. As a result, Thief steals ";
   assertTrue(card.getMessage().startsWith(str));
   str = " from Victim";
   assertTrue(card.getMessage().endsWith(str));
 }
 @Test
 public void testPoorVictimWontHaveNegativeGold() {
   Hero thief = player1.getCharacter();
   Hero victim = player2.getCharacter();
   int initGold = thief.getGold();
   victim.setGold(1);
   card.triggerEffect(player1, player2);
   assertEquals(initGold + 1, thief.getGold());
   assertEquals(0, victim.getGold());
 }
 @Test
 public void testStealGold() {
   Hero thief = player1.getCharacter();
   Hero victim = player2.getCharacter();
   int thiefInitGold = thief.getGold();
   int victimInitGold = victim.getGold();
   card.triggerEffect(player1, player2);
   int diff = thief.getGold() - thiefInitGold;
   String msg = card.getMessage();
   msg =
       msg.replace(
           "Victim has just invested in Thief's ponzi scheme. As a result, Thief steals ", "");
   msg = msg.replace(" from Victim", "");
   assertEquals(diff, Integer.parseInt(msg));
   assertEquals(thiefInitGold + Integer.parseInt(msg), thief.getGold());
   assertEquals(Integer.parseInt(msg), victimInitGold - victim.getGold());
 }