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Bug 61071 : Bug 61071 - Median calculated incorrectly 

Add Test contributed by Aleksei Balan within PR 295
Add another test showing a bug on getPercentPoint()
Bugzilla Id: 61071

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1794137 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 903f061885
This commit is contained in:
Philippe Mouawad 2017-05-06 12:58:21 +00:00
parent 4f09bac234
commit 7c183d1ebc
1 changed files with 45 additions and 10 deletions
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55
test/src/org/apache/jorphan/math/TestStatCalculator.java
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@ -22,7 +22,10 @@ import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertTrue;
import java.util.Map; import java.util.Map;
import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
import org.junit.Before; import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test; import org.junit.Test;
public class TestStatCalculator { public class TestStatCalculator {
@ -37,19 +40,34 @@ public class TestStatCalculator {
@Test @Test
public void testPercentagePoint() throws Exception { public void testPercentagePoint() throws Exception {
calc.addValue(10); long values[] = new long[] {
calc.addValue(9); 10L,9L,5L,6L,1L,3L,8L,2L,7L,4L
calc.addValue(5); };
calc.addValue(6); for (long l : values) {
calc.addValue(1); calc.addValue(l);
calc.addValue(3); }
calc.addValue(8);
calc.addValue(2);
calc.addValue(7);
calc.addValue(4);
assertEquals(10, calc.getCount()); assertEquals(10, calc.getCount());
assertEquals(9, calc.getPercentPoint(0.8999999).intValue()); assertEquals(9, calc.getPercentPoint(0.8999999).intValue());
} }
@Test
@Ignore
// Disabled due to in progress Bug 61071
public void testPercentagePointBug() throws Exception {
long values[] = new long[] {
10L,9L,5L,6L,1L,3L,8L,2L,7L,4L
};
DescriptiveStatistics statistics = new DescriptiveStatistics();
for (long l : values) {
calc.addValue(l);
statistics.addValue(l);
}
assertEquals(9, calc.getPercentPoint(0.8999999).intValue());
//
assertEquals(Math.round(statistics.getPercentile(90)),
calc.getPercentPoint(0.9).intValue());
}
@Test @Test
public void testCalculation() { public void testCalculation() {
assertEquals(Long.MIN_VALUE, calc.getMax().longValue()); assertEquals(Long.MIN_VALUE, calc.getMax().longValue());
@ -70,6 +88,23 @@ public class TestStatCalculator {
assertEquals(3, calc.getMin().intValue()); assertEquals(3, calc.getMin().intValue());
assertEquals(15, calc.getMedian().intValue()); assertEquals(15, calc.getMedian().intValue());
} }
@Test
@Ignore
// Disabled due to in progress Bug 61071
public void testMedianBug61071() {
long[] values = new long[] {
10L, 20L, 30L, 40L, 50L, 60L, 80L, 90L
};
DescriptiveStatistics statistics = new DescriptiveStatistics();
for (long l : values) {
calc.addValue(l);
statistics.addValue(l);
}
assertEquals((int) statistics.getPercentile(50), calc.getMedian().intValue());
}
@Test @Test
public void testLong(){ public void testLong(){
calc.addValue(0L); calc.addValue(0L);