@Test
public void testConvertToWalletAmount() {
WalletAmountConverter wac = new WalletAmountConverter(2);
BigDecimal a = wac.convertToWalletAmount(-12345);
assertEquals(new BigDecimal("-123.45"), a);
assertEquals(2, a.scale());
}
@Test
public void testConvertToInternalScaledAmount() {
WalletAmountConverter wac = new WalletAmountConverter(2);
int a = wac.convertToInternalScaledAmount(new BigDecimal("-123"));
assertEquals(-12300, a);
}