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MATH-1533: Add unit test. 

Issue reported does not exist in the development version.
This commit is contained in:
Gilles Sadowski 2020-05-18 11:49:23 +02:00
parent bd43adb57f
commit cd003cb29f
1 changed files with 15 additions and 0 deletions
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15
src/test/java/org/apache/commons/math4/distribution/EnumeratedIntegerDistributionTest.java
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@ -18,6 +18,7 @@ package org.apache.commons.math4.distribution;
import static org.junit.Assert.assertEquals;
import java.util.Arrays;
import org.apache.commons.statistics.distribution.DiscreteDistribution;
import org.apache.commons.math4.distribution.EnumeratedIntegerDistribution;
import org.apache.commons.math4.exception.DimensionMismatchException;
@ -183,4 +184,18 @@ public class EnumeratedIntegerDistributionTest {
assertEquals(0.5, distribution.probability(2), 0);
assertEquals(0.5, distribution.cumulativeProbability(1), 0);
}
@Test
public void testMath1533() {
final EnumeratedIntegerDistribution d1 = new EnumeratedIntegerDistribution(new int[] {1, 2},
new double[] {0.3, 0.7});
final EnumeratedIntegerDistribution d2 = new EnumeratedIntegerDistribution(new int[] {2, 1},
new double[] {0.7, 0.3});
final int len = 24;
final RandomSource r = RandomSource.WELL_19937_C;
final int s = 42;
Assert.assertTrue(Arrays.equals(AbstractIntegerDistribution.sample(len, d1.createSampler(RandomSource.create(r, s))),
AbstractIntegerDistribution.sample(len, d2.createSampler(RandomSource.create(r, s)))));
}
}