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Posted to issues@commons.apache.org by "Henri Yandell (JIRA)" <ji...@apache.org> on 2011/01/01 20:29:49 UTC
[jira] Updated: (LANG-663) org.apache.commons.lang3.math.Fraction
does not always succeed in multiplyBy and divideBy
[ https://issues.apache.org/jira/browse/LANG-663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Henri Yandell updated LANG-663:
-------------------------------
Fix Version/s: 3.0
Need to resolve before 3.0 release.
> org.apache.commons.lang3.math.Fraction does not always succeed in multiplyBy and divideBy
> -----------------------------------------------------------------------------------------
>
> Key: LANG-663
> URL: https://issues.apache.org/jira/browse/LANG-663
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.math.*
> Affects Versions: 3.0
> Reporter: Christian Semrau
> Priority: Minor
> Fix For: 3.0
>
>
> The Fraction.multiplyBy and divideBy methods fail sometimes when the arguments are not reduced.
> {code:title=FunctionTest.java|borderStyle=solid}
> public void testMultiply() {
> // ...
> f1 = Fraction.getFraction(Integer.MAX_VALUE, Integer.MAX_VALUE);
> f2 = Fraction.getFraction(42, 1);
> f = f1.multiplyBy(f2);
> assertEquals(42, f.getNumerator());
> assertEquals(1, f.getDenominator());
> public void testDivide() {
> // ...
> f1 = Fraction.getFraction(Integer.MAX_VALUE, Integer.MAX_VALUE);
> f2 = Fraction.getFraction(42, 1);
> f = f1.divideBy(f2);
> assertEquals(1, f.getNumerator());
> assertEquals(42, f.getDenominator());
> {code}
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