/*
* Copyright 2014 Andreas Schildbach
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.matthewmitchell.nubitsj.utils;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
import com.matthewmitchell.nubitsj.core.Coin;
public class ExchangeRateTest {
@Test
public void normalRate() throws Exception {
ExchangeRate rate = new ExchangeRate(Fiat.parseFiat("EUR", "500"));
assertEquals("0.5", rate.coinToFiat(Coin.MILLICOIN).toPlainString());
assertEquals("0.002", rate.fiatToCoin(Fiat.parseFiat("EUR", "1")).toPlainString());
}
@Test
public void bigRate() throws Exception {
ExchangeRate rate = new ExchangeRate(Coin.parseCoin("0.0001"), Fiat.parseFiat("BYR", "5320387.3"));
assertEquals("53203873000", rate.coinToFiat(Coin.COIN).toPlainString());
assertEquals("0", rate.fiatToCoin(Fiat.parseFiat("BYR", "1")).toPlainString()); // Tiny value!
}
@Test
public void smallRate() throws Exception {
ExchangeRate rate = new ExchangeRate(Coin.parseCoin("1000"), Fiat.parseFiat("XXX", "0.0001"));
assertEquals("0", rate.coinToFiat(Coin.COIN).toPlainString()); // Tiny value!
assertEquals("10000000", rate.fiatToCoin(Fiat.parseFiat("XXX", "1")).toPlainString());
}
@Test(expected = IllegalArgumentException.class)
public void currencyCodeMismatch() throws Exception {
ExchangeRate rate = new ExchangeRate(Fiat.parseFiat("EUR", "500"));
rate.fiatToCoin(Fiat.parseFiat("USD", "1"));
}
@Test(expected = IllegalArgumentException.class)
public void constructMissingCurrencyCode() {
new ExchangeRate(Fiat.valueOf(null, 1));
}
@Test(expected = IllegalArgumentException.class)
public void constructNegativeCoin() {
new ExchangeRate(Coin.valueOf(-1), Fiat.valueOf("EUR", 1));
}
@Test(expected = IllegalArgumentException.class)
public void constructFiatCoin() {
new ExchangeRate(Fiat.valueOf("EUR", -1));
}
}