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Fix one unexpected case of fiatToCoin overflow and add tests.

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This commit is contained in:
Andreas Schildbach 2014-10-12 19:25:52 +02:00
parent 8c99e61e01
commit ca2a9ed8f1
2 changed files with 29 additions and 1 deletions
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4
core/src/main/java/org/bitcoinj/utils/ExchangeRate.java
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@ -70,6 +70,10 @@ public class ExchangeRate implements Serializable {
if (converted.compareTo(BigInteger.valueOf(Long.MAX_VALUE)) > 0
|| converted.compareTo(BigInteger.valueOf(Long.MIN_VALUE)) < 0)
throw new ArithmeticException("Overflow");
try {
return Coin.valueOf(converted.longValue());
} catch (IllegalArgumentException x) {
throw new ArithmeticException("Overflow: " + x.getMessage());
}
}
}

24
core/src/test/java/org/bitcoinj/utils/ExchangeRateTest.java
View File

@ -50,4 +50,28 @@ public class ExchangeRateTest {
ExchangeRate rate = new ExchangeRate(Fiat.parseFiat("EUR", "500"));
rate.fiatToCoin(Fiat.parseFiat("USD", "1"));
}
@Test(expected = ArithmeticException.class)
public void fiatToCoinTooLarge() throws Exception {
ExchangeRate rate = new ExchangeRate(Fiat.parseFiat("XXX", "1"));
rate.fiatToCoin(Fiat.parseFiat("XXX", "21000001"));
}
@Test(expected = ArithmeticException.class)
public void fiatToCoinTooSmall() throws Exception {
ExchangeRate rate = new ExchangeRate(Fiat.parseFiat("XXX", "1"));
rate.fiatToCoin(Fiat.parseFiat("XXX", "-21000001"));
}
@Test(expected = ArithmeticException.class)
public void coinToFiatTooLarge() throws Exception {
ExchangeRate rate = new ExchangeRate(Fiat.parseFiat("XXX", "1000000000"));
rate.coinToFiat(Coin.parseCoin("1000000"));
}
@Test(expected = ArithmeticException.class)
public void coinToFiatTooSmall() throws Exception {
ExchangeRate rate = new ExchangeRate(Fiat.parseFiat("XXX", "1000000000"));
rate.coinToFiat(Coin.parseCoin("-1000000"));
}
}