@Test
public void testCountryFlagForCurrency() {

	assertThat(CurrencyUtils.countryFlagForCurrency(USD)).isEqualTo("us");
	assertThat(CurrencyUtils.countryFlagForCurrency(EUR)).isEqualTo("europeanunion");
	assertThat(CurrencyUtils.countryFlagForCurrency("RUB")).isEqualTo("ru");
	assertThat(CurrencyUtils.countryFlagForCurrency(GBP)).isEqualTo("gb");
	assertThat(CurrencyUtils.countryFlagForCurrency(CHF)).isEqualTo("ch");
	assertThat(CurrencyUtils.countryFlagForCurrency("XAU")).isEqualTo("gold");
	assertThat(CurrencyUtils.countryFlagForCurrency("TOTO")).isNull();
}