Program: 157747
Project: 157747
Buggy source:
@Test public void TestCairnWandererEffect(){
  addCard(Zone.BATTLEFIELD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  execute();
  List<Ability> abilities=new ArrayList<>();
  abilities.add(FlyingAbility.getInstance());
  abilities.add(FearAbility.getInstance());
  abilities.add(FirstStrikeAbility.getInstance());
  abilities.add(DoubleStrikeAbility.getInstance());
  abilities.add(DeathtouchAbility.getInstance());
  abilities.add(HasteAbility.getInstance());
  abilities.add(LifelinkAbility.getInstance());
  abilities.add(ReachAbility.getInstance());
  abilities.add(ShroudAbility.getInstance());
  abilities.add(TrampleAbility.getInstance());
  abilities.add(VigilanceAbility.getInstance());
  assertAbilities(playerA,"String_Node_Str",abilities);
  assertAbility(playerA,"String_Node_Str",new PlainswalkAbility(),true);
  assertAbility(playerA,"String_Node_Str",new ProtectionAbility(new FilterCard("String_Node_Str")),true);
}

Fixed version (ground truth):
@Test public void TestCairnWandererEffect(){
  addCard(Zone.BATTLEFIELD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerA,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerB,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerB,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerB,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerB,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerB,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerB,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerB,"String_Node_Str");
  addCard(Zone.GRAVEYARD,playerB,"String_Node_Str");
  execute();
  List<Ability> abilities=new ArrayList<>();
  abilities.add(FlyingAbility.getInstance());
  abilities.add(FearAbility.getInstance());
  abilities.add(FirstStrikeAbility.getInstance());
  abilities.add(DoubleStrikeAbility.getInstance());
  abilities.add(DeathtouchAbility.getInstance());
  abilities.add(HasteAbility.getInstance());
  abilities.add(LifelinkAbility.getInstance());
  abilities.add(ReachAbility.getInstance());
  abilities.add(ShroudAbility.getInstance());
  abilities.add(TrampleAbility.getInstance());
  abilities.add(VigilanceAbility.getInstance());
  assertAbilities(playerA,"String_Node_Str",abilities);
  assertAbility(playerA,"String_Node_Str",new PlainswalkAbility(),true);
  assertAbility(playerA,"String_Node_Str",new ProtectionAbility(new FilterCard("String_Node_Str")),true);
}