[ grinder-Bugs-3505114 ] Bug in StatisticsIndexMap - Grinder 3.7.1

Bugs item #3505114, was opened at 2012-03-15 03:33
Message generated for change (Tracker Item Submitted) made by ffan
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Category: Core engine
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Fei (ffan)
Assigned to: Nobody/Anonymous (nobody)
Summary: Bug in StatisticsIndexMap - Grinder 3.7.1

Initial Comment:
As I explore the user defined statistics for Grinder, I found some problem. The “userLong4” value is not set correctly during the test.

In data log file, userLong4 has the same value as Test Time. After some investigation, I think the problem is with StatisticsIndexMap. When initializing the longIndexMap, prefix of ++ is used, which leaves out the index 0; but afterwards, when creating the sampleIndex, postfix of ++ is used which causes index collision: timedTests.sum overwrites the index of userLong4.

for (String longName : longNames) {
m_longMap.put(longName, new LongIndex(++nextLongIndex));
}

createLongSampleIndex("timedTests",
                          new LongIndex(nextLongIndex++), //collision occurs
                          new LongIndex(nextLongIndex++),
                          new DoubleIndex(nextDoubleIndex++));

# Sample Script
from net.grinder.script.Grinder import grinder
from net.grinder.script import Test
from net.grinder.plugin.http import HTTPRequest

test1 = Test(1, "Request resource")
request1 = test1.wrap(HTTPRequest())

grinder.statistics.registerDataLogExpression("userLong0", "userLong0");
grinder.statistics.registerDataLogExpression("userLong1", "userLong1");
grinder.statistics.registerDataLogExpression("userLong2", "userLong2");
grinder.statistics.registerDataLogExpression("userLong3", "userLong3");
grinder.statistics.registerDataLogExpression("userLong4", "userLong4");

class TestRunner:
    def __call__(self):
        grinder.statistics.delayReports = 1
        request1.GET("http://www.google.com")
        runNumber = grinder.getRunNumber()
        if(0 == (runNumber % 3)):
            grinder.statistics.forLastTest.success = 0
        grinder.statistics.forLastTest.setLong("userLong0",1000)
        grinder.statistics.forLastTest.setLong("userLong1",1001)
        grinder.statistics.forLastTest.setLong("userLong2",1002)
        grinder.statistics.forLastTest.setLong("userLong3",1003)
        grinder.statistics.forLastTest.setLong("userLong4",1004)
        grinder.statistics.report()
        grinder.statistics.delayReports = 0

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