@Test
 public void countPointInSpace() throws Exception {
   Space spaces[] = pointGenerator.divideSpace(rectSpace, divide);
   for (Space space : spaces) {
     pointGenerator.generate(space, pointCnt / (divide * divide));
     assertEquals(pointCnt / (divide * divide), space.getPointList().size());
   }
 }
 @Test
 public void countSpace() throws Exception {
   Space spaces[] = pointGenerator.divideSpace(rectSpace, divide);
   assertEquals(divide * divide, spaces.length);
 }