User defined statistic in nGrinder

[Mavlarn]

Post in wiki:

http://www.cubrid.org/wiki_ngrinder/entry/user-defined-statistic-in-ngrinder 

 

Maybe you know that "The Grinder" supports user defined statistic. If you define and put some value in the script, then this filed can be saved in data log or summary data. You can check the example script for this from:

http://grinder.sourceforge.net/g3/script-gallery.html#jmsreceiver.py

But in ngrinder, in previous 3.1.2 version, you can not see that data in test report. But from version 3.1.2, you can see that data in report chart.

The sample script is below: 

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# -*- coding:utf-8 -*-   # A simple example using the HTTP plugin that shows the retrieval of a # single page via HTTP. # # This script is auto generated by ngrinder. # # @author admin from net.grinder.script.Grinder import grinder from net.grinder.script import Test from net.grinder.plugin.http import HTTPRequest from net.grinder.plugin.http import HTTPPluginControl from java.util import Random   control = HTTPPluginControl.getConnectionDefaults() # if you don't want that HTTPRequest follows the redirection, please modify the following option 0. # control.followRedirects = 1 # if you want to increase the timeout, please modify the following option. control.timeout = 6000   test1 = Test(1, "Test1") request1 = HTTPRequest()   grinder.statistics.registerDataLogExpression("User_defined", "userLong0")   # Make any method call on request1 increase TPS test1.record(request1) random = Random()   class TestRunner:     # initlialize a thread     def __init__(self):         grinder.statistics.delayReports=True         pass       # test method            def __call__(self):         result = request1.GET("http://www.baidu.com")                # do something         deliveryTime = random.nextInt(1000)         sleet(deliveryTime)         grinder.statistics.forCurrentTest.setValue("userLong0", deliveryTime)                   if result.getStatusCode() == 200 :             grinder.statistics.forLastTest.success = 1         elif result.getStatusCode() in (301, 302) :             grinder.logger.warn("Warning. The response may not be correct. The response code was %d." %  result.getStatusCode())             grinder.statistics.forLastTest.success = 1         else :             grinder.statistics.forLastTest.success = 0

Currently, only one chart can be displayed for the user defined statistic, and the name of this statistic should be “User_defined”. For more detailed description of usage, you can refer the document of grinder:

registerSummaryExpression

After running a test with this script, you can see the chart for user defined statistics in the detailed report.