@Test
 public void shouldReturnAmountFractionDenominator() {
   NumberValue numberValue = DefaultNumberValue.of(BigDecimal.valueOf(132.21));
   assertEquals(100L, numberValue.getAmountFractionDenominator());
 }
 @Test
 public void shouldReturnAmountFractionDenominatorForNegativeScale() {
   NumberValue numberValue = DefaultNumberValue.of(BigDecimal.valueOf(10.00));
   assertEquals(1, numberValue.getAmountFractionDenominator());
 }
 @Test
 public void shoudReturnAmountFractionNumerator() {
   NumberValue numberValue = DefaultNumberValue.of(BigDecimal.valueOf(62.5));
   assertEquals(5L, numberValue.getAmountFractionNumerator());
   assertEquals(10L, numberValue.getAmountFractionDenominator());
 }