### Question:
PointObjectValueFormatter extends AbstractPointValueFormatter { @Override public String format(Object value) { if (value == null) { return null; } return value.toString(); }  @Override String format(Object value); @Override boolean handles(Class<?> valueClass); @Value("100") @Override void setOrder(int order);  }### Answer:
@Test public void format_Null() { assertNull(formatter.format(null)); }
@Test public void format() { Object value = mock(Object.class); when(value.toString()).thenReturn("123"); assertEquals("123", formatter.format(value)); }