@Test(enabled = true)
 public void test2Number() {
   v.merge(new StatsValue(2));
   assertEquals(v.getCount(), 2.0, 0.01);
   assertEquals(v.getMax(), 2.0, 0.01);
   assertEquals(v.getMin(), 1.0, 0.01);
   assertEquals(v.getSum(), 3.0, 0.01);
   assertEquals(v.getDev(), 0.5, 0.01);
   assertEquals(v.getFirst(), 1.0, 0.01);
 }
  @Test(enabled = true)
  public void test10Number() {
    v.merge(new StatsValue(2));
    v.merge(new StatsValue(3));
    v.merge(new StatsValue(4));
    v.merge(new StatsValue(5));

    StatsValue w = new StatsValue(6);
    w.merge(new StatsValue(7));
    w.merge(new StatsValue(8));
    w.merge(new StatsValue(9));
    w.merge(new StatsValue(10));

    v.merge(w);
    assertEquals(v.getCount(), 10.0, 0.01);
    assertEquals(v.getMax(), 10.0, 0.01);
    assertEquals(v.getMin(), 1.0, 0.01);
    assertEquals(v.getSum(), 55.0, 0.01);
    assertEquals(v.getDev(), 82.5, 0.01);
    assertEquals(v.getFirst(), 1.0, 0.01);
  }