def testDifferentStatesCanHaveSameDistanceToGoal(self):
p1 = Puzzle("120345678")
p2 = Puzzle("012345867")
comparator = PuzzleStateComparator()
result = comparator.compare(p1, p2)
self.assertEqual(result, 0)
def testIfStateIsCloserToGoalThanOther(self):
p1 = Puzzle("120345678")
p2 = Puzzle("102345678")
c = PuzzleStateComparator()
result = c.compare(p1, p2)
self.assertEqual(result, 1)
