Author: psteitz
Date: Tue Sep 20 19:20:59 2011
New Revision: 1173313
URL: http://svn.apache.org/viewvc?rev=1173313&view=rev
Log:
Added test for consistency of cumulativeProbability(double,double) and
cumulativeProbability(double). Contributed by Christian Winter.
Modified:
commons/proper/math/trunk/src/test/java/org/apache/commons/math/distribution/ContinuousDistributionAbstractTest.java
Modified:
commons/proper/math/trunk/src/test/java/org/apache/commons/math/distribution/ContinuousDistributionAbstractTest.java
URL:
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/test/java/org/apache/commons/math/distribution/ContinuousDistributionAbstractTest.java?rev=1173313&r1=1173312&r2=1173313&view=diff
==============================================================================
---
commons/proper/math/trunk/src/test/java/org/apache/commons/math/distribution/ContinuousDistributionAbstractTest.java
(original)
+++
commons/proper/math/trunk/src/test/java/org/apache/commons/math/distribution/ContinuousDistributionAbstractTest.java
Tue Sep 20 19:20:59 2011
@@ -20,6 +20,7 @@ package org.apache.commons.math.distribu
import org.apache.commons.math.TestUtils;
import org.apache.commons.math.util.FastMath;
import org.apache.commons.math.exception.MathIllegalArgumentException;
+import org.apache.commons.math.exception.NumberIsTooLargeException;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
@@ -144,12 +145,30 @@ public abstract class ContinuousDistribu
* using current test instance data
*/
protected void verifyCumulativeProbabilities() throws Exception {
+ // verify cumulativeProbability(double)
for (int i = 0; i < cumulativeTestPoints.length; i++) {
TestUtils.assertEquals("Incorrect cumulative probability value
returned for "
+ cumulativeTestPoints[i], cumulativeTestValues[i],
distribution.cumulativeProbability(cumulativeTestPoints[i]),
getTolerance());
}
+ // verify cumulativeProbability(double, double)
+ for (int i = 0; i < cumulativeTestPoints.length; i++) {
+ for (int j = 0; j < cumulativeTestPoints.length; j++) {
+ if (cumulativeTestPoints[i] <= cumulativeTestPoints[j]) {
+ TestUtils.assertEquals(cumulativeTestValues[j] -
cumulativeTestValues[i],
+
distribution.cumulativeProbability(cumulativeTestPoints[i],
cumulativeTestPoints[j]),
+ getTolerance());
+ } else {
+ try {
+
distribution.cumulativeProbability(cumulativeTestPoints[i],
cumulativeTestPoints[j]);
+ } catch (NumberIsTooLargeException e) {
+ continue;
+ }
+ Assert.fail("distribution.cumulativeProbability(double,
double) should have thrown an exception that second argument is too large");
+ }
+ }
+ }
}
/**
