open five firefox in same machine - selenium grid

Question

I'm looking confirmation before proceeding parallel test, I try to run selenium test case on 5 firefox browser on same machine, right now it is create only single browser.

Below one is my node creation command.

 java -Dwebdriver.firefox.marionette="/u01/driver/geckodriver" -jar selenium-server-standalone-3.0.1.jar -role webdriver -hub http://192.168.1.106:4444/grid/register -port 5566 -host 192.168.1.40 -browser browserName=firefox,version=38.0.1,maxInstances=5,platform=LINUX

maxInstances=5 -> this only enough to make five firefox or I need to write thread class for activate five browser?

Answer 1

Add maxSession=5 parameter additionally.

maxInstance sets max number of instances of the same browser , but if your max number of instances ( no matter which browser ) is 1 ( maxSession=1 ), then you can't start 5 firefox instances even if you've set maxInstance=5 .

Answer 2

maxInstances and maxSession only not enough to open five browser, we need to write code for parallel test.

maxInstances=5,maxSession=5

If you use TestNg it would be much easier. Below one is my test suit file

  <?xml version="1.0" encoding="UTF-8"?>
  <!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
  <suite name="Suite" parallel="tests">

     <test name="FirefoxTestOne">
     <parameter name="browser" value="firefox" />
        <classes>
           <class name="example.NewTest" />
        </classes>
     </test>
     <test name="FirefoxTestTwo">
     <parameter name="browser" value="firefox" />
        <classes>
           <class name="example.NewTest" />
        </classes>
     </test> 
        <test name="FirefoxTestThree">
     <parameter name="browser" value="firefox" />
        <classes>
           <class name="example.NewTest" />
        </classes>
     </test> 
        <test name="FirefoxTestFour">
     <parameter name="browser" value="firefox" />
        <classes>
           <class name="example.NewTest" />
        </classes>
     </test> 
        <test name="FirefoxTestFive">
     <parameter name="browser" value="firefox" />
        <classes>
           <class name="example.NewTest" />
        </classes>
     </test> 

  </suite>   

In above file I mention like run my class example.NewTest parallely with different test name. When run test suite file it will open five firefox in selenium grid node without session conflict.