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Fix for incorrect amounts reported by API

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This commit is contained in:
catbref 2020-05-19 15:20:20 +01:00
parent 28991a926f
commit 7102f4a727
2 changed files with 23 additions and 15 deletions
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16
src/main/java/org/qortal/utils/Amounts.java
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@ -12,21 +12,7 @@ public abstract class Amounts {
public static final BigInteger ROUNDING = MULTIPLIER_BI.subtract(BigInteger.ONE);
public static String prettyAmount(long amount) {
StringBuilder stringBuilder = new StringBuilder(20);
stringBuilder.append(amount / MULTIPLIER);
stringBuilder.append('.');
int dpLength = stringBuilder.length();
stringBuilder.append(Math.abs(amount % MULTIPLIER));
int paddingRequired = 8 - (stringBuilder.length() - dpLength);
if (paddingRequired > 0)
stringBuilder.append("00000000", 0, paddingRequired);
return stringBuilder.toString();
return String.format("%d.%08d", amount / MULTIPLIER, amount % MULTIPLIER);
}
public static BigDecimal toBigDecimal(long amount) {

22
src/test/java/org/qortal/test/AmountsTests.java Normal file
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@ -0,0 +1,22 @@
package org.qortal.test;
import static org.junit.Assert.*;
import org.junit.Test;
import org.qortal.utils.Amounts;
public class AmountsTests {
@Test
public void testPrettyAmount() {
testPrettyAmount(1L, "0.00000001");
testPrettyAmount(100000L, "0.00100000");
testPrettyAmount(100000000L, "1.00000000");
testPrettyAmount(1000000000L, "10.00000000");
}
private void testPrettyAmount(long amount, String prettyAmount) {
assertEquals(prettyAmount, Amounts.prettyAmount(amount));
}
}