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From pmoua...@apache.org
Subject svn commit: r1794137 - /jmeter/trunk/test/src/org/apache/jorphan/math/TestStatCalculator.java
Date Sat, 06 May 2017 12:58:22 GMT
Author: pmouawad
Date: Sat May  6 12:58:21 2017
New Revision: 1794137

URL: http://svn.apache.org/viewvc?rev=1794137&view=rev
Log:
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

Modified:
    jmeter/trunk/test/src/org/apache/jorphan/math/TestStatCalculator.java

Modified: jmeter/trunk/test/src/org/apache/jorphan/math/TestStatCalculator.java
URL: http://svn.apache.org/viewvc/jmeter/trunk/test/src/org/apache/jorphan/math/TestStatCalculator.java?rev=1794137&r1=1794136&r2=1794137&view=diff
==============================================================================
--- jmeter/trunk/test/src/org/apache/jorphan/math/TestStatCalculator.java (original)
+++ jmeter/trunk/test/src/org/apache/jorphan/math/TestStatCalculator.java Sat May  6 12:58:21
2017
@@ -22,7 +22,10 @@ import static org.junit.Assert.assertEqu
 import static org.junit.Assert.assertTrue;
 
 import java.util.Map;
+
+import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Test;
 
 public class TestStatCalculator {
@@ -37,19 +40,34 @@ public class TestStatCalculator {
 
     @Test
     public void testPercentagePoint() throws Exception {
-        calc.addValue(10);
-        calc.addValue(9);
-        calc.addValue(5);
-        calc.addValue(6);
-        calc.addValue(1);
-        calc.addValue(3);
-        calc.addValue(8);
-        calc.addValue(2);
-        calc.addValue(7);
-        calc.addValue(4);
+        long values[] = new long[] {
+            10L,9L,5L,6L,1L,3L,8L,2L,7L,4L
+        };
+        for (long l : values) {
+            calc.addValue(l);
+        }
         assertEquals(10, calc.getCount());
         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
     public void testCalculation() {
         assertEquals(Long.MIN_VALUE, calc.getMax().longValue());
@@ -70,6 +88,23 @@ public class TestStatCalculator {
         assertEquals(3, calc.getMin().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
     public void testLong(){
         calc.addValue(0L);



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