@Test
public void standardCodes() throws Exception {

    assertEquals("BTC 0.00", MonetaryFormat.BTC.format(Coin.ZERO).toString());
    assertEquals("mBTC 0.00", MonetaryFormat.MBTC.format(Coin.ZERO).toString());
    assertEquals("µBTC 0", MonetaryFormat.UBTC.format(Coin.ZERO).toString());
}