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TestNG Based Selenium Tests not running in Parallel

I am using the below TestNG Config to enable parallel execution of Selenium tests.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="Test-Automation" parallel="methods" thread-count="2" verbose="1">
<test name="Suite Test">
<classes>
<class name="SampleTest">
<methods>
<include name="firstTest"/>
<include name="secondTest"/>
<include name="thirdTest"/>
</methods>
</class>
</classes>
</test>
</suite>
Java Code:
#Test(dataProvider = "TestData")
public void firstTest(String data){
//Code
}
#Test(dataProvider = "TestData")
public void secondTest(String data){
//Code
}
#Test(dataProvider = "TestData")
public void thirdTest(String data){
//Code
}
The Selenium tests are expected to run in parallel. I expect 2 browsers to be open and run the test script.
But I see only 1 browser and all 3 tests run one after the other and not in parallel. I have tried using test, methods, class, instance options for "parallel" attribute.
Any help?

This is due to a bug in TestNG 6.13.1 [ See GITHUB-1636 for more details ]
I have fixed this in the latest SNAPSHOT of TestNG (6.14-SNAPSHOT) and this should be available for use in the released version of TestNG (6.14).
But until then, please alter your suite xml file to look like below :
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="Test-Automation" parallel="methods" thread-count="2" verbose="1">
<test name="Suite Test" parallel="methods" thread-count="2" verbose="1">
<classes>
<class name="SampleTest">
<methods>
<include name="firstTest"/>
<include name="secondTest"/>
<include name="thirdTest"/>
</methods>
</class>
</classes>
</test>
</suite>
The work-around is basically to add the attributes parallel="methods" thread-count="2" at the <test> level also.

Seperate all the test and then try with parallel="test"
<test name="Suite Test1">
<classes>
<class name="//..//packg name..SampleTest">
</class>
</classes>
</test>
<test name="Suite Test2">
<classes>
<class name="//..//SampleTest">
</class>
</classes>
</test>
<test name="Suite Test3">
<classes>
<class name="//..//packg name..SampleTest">
</class>
</classes>
</test>
</suite>

TestNG inherit #Parameters from parent class

I'm trying to get to work a stub for concurrent cross browser test framework using TestNG. BUT seems I cannot get #Parameters from parent class and keep getting
Parameter 'browsername' is required by #Configuration on method setup but has not been marked #Optional or defined
at org.testng.internal.Parameters.createParameters(Parameters.java:155)
at org.testng.internal.Parameters.createParameters(Parameters.java:358)
at org.testng.internal.Parameters.createConfigurationParameters(Parameters.java:86)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:199)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:138)
at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:175)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:107)
at org.testng.TestRunner.privateRun(TestRunner.java:767)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:348)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:343)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:305)
at org.testng.SuiteRunner.run(SuiteRunner.java:254)
TestNG.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="1265_Suite" parallel="tests" verbose="2" thread-count="2" preserve-order="true">
<test name="92" parallel="false" preserve-order="true">
<classes>
<class name="com.javacodegeeks.testng.maven.BaseTest"/>
<class name="com.javacodegeeks.testng.maven.ChildTest"/>
<parameter name="browsername" value="chrome"/>
</classes>
</test>
<test name="93" parallel="false" preserve-order="true">
<classes>
<class name="com.javacodegeeks.testng.maven.BaseTest"/>
<class name="com.javacodegeeks.testng.maven.ChildTest"/>
<parameter name="browsername" value="firefox"/>
</classes>
</test>
</suite>
BaseTest
public class BaseTest extends Assert {
protected String browser;
#BeforeClass
#Parameters({"browsername"})
public void setup(String browsername) {
System.err.println("Browser name in #BeforeClass is " + browsername);
this.browser = browsername;
}
}
ChildTest
public class ChildTest extends BaseTest {
#Test
public void test() {
System.out.println(browser);
}
}
I didn't find enough information on how to get this to work so if you have any ideas I would like to hear them.
Already checked but not enough info:
TestNG Annotations in a Superclass

Try again with <parameter> nodes on the <test> nodes (and BaseTest should be useless):
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="1265_Suite" parallel="tests" verbose="2" thread-count="2" preserve-order="true">
<test name="92" parallel="false" preserve-order="true">
<parameter name="browsername" value="chrome"/>
<classes>
<!--class name="com.javacodegeeks.testng.maven.BaseTest"/-->
<class name="com.javacodegeeks.testng.maven.ChildTest"/>
</classes>
</test>
<test name="93" parallel="false" preserve-order="true">
<parameter name="browsername" value="firefox"/>
<classes>
<!--class name="com.javacodegeeks.testng.maven.BaseTest"/-->
<class name="com.javacodegeeks.testng.maven.ChildTest"/>
</classes>
</test>
</suite>

Unable to run the Regression group in testng.xml file for different browsers

I have configured the testng.xml file to run the Regression group in different browsers.Below is the testng.xml code for the same.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="SeleniumSuite" verbose ="1" thread-count = "1" parallel="false">
<**test** name="FirefoxTest">
<groups>
<run>
<include name="Regression"></include>
</run>
</groups>
<parameter name="browser" value="firefox" />
<classes>
<class name="Testscript.Program111_RediffLogin" />
</classes>
</test>
<test name="IETest">
<groups>
<run>
<include name="Regression"></include>
</run>
</groups>
<parameter name="browser" value="ie" />
<classes>
<class name="Testscript.Program111_RediffLogin" />
</classes>
</test>
</suite>
when I hover the mouse on the tag, it displays an error message as "The content of element type "test" must match "(method-selectors?,parameter*,groups?,packages?,classes?)".At the Test class level I have defined all the parameters properly for the regression test to run.But still I am seeing the error in the testng.xml file.Can any one of you look into this and help me!
Please find the test case I am using for the automation
#Test(groups={"Regression"},dataProvider = "hashmapdataprovider",dataProviderClass =Dataprovider.Dataprovider_Hashmap.class,priority=1 )
public void validLogin(Map<String,String> hm) throws IOException
{
pageobjects.Signin();
driver.manage().timeouts().implicitlyWait(15, TimeUnit.SECONDS);
OriginalExcelRW Excel = new OriginalExcelRW("F:\\anand_acer\\selenium\\rediffbooks.xlsx");
XSSFSheet s1 = Excel.Setsheet("Sheet1");
SoftAssert s_assert = new SoftAssert();
if (hm.get("Executionflow").contains("anand"))
{
pageobjects.Username1(hm.get(Excel.Readvalue(s1, 0, 2)));
pageobjects.pass1(hm.get(Excel.Readvalue(s1, 0, 3)));
//s_assert.assertEquals(hm.get(Excel.Readvalue(s1, 0, 2)), hm.get(Excel.Readvalue(s1, 0, 3)), "both the usssser Ideee and password doesnt matches");
//logger.info("Usssser Ideeee");
pageobjects.login();
s_assert.assertTrue(true, "login success");
//logger.info("The login was success");
System.out.println("Valid login is passed");
pageobjects.signout();
pageobjects.Signin();
//pageobjects.cleartext();
}
s_assert.assertAll();
}

Looks like from the error message you have posted they must be in a special order of indentation?
Here is an example of my XML which works
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite verbose="1" name="example suite 1">
<listeners>
<listener class-name="ReportListener.ReportListenerClass" />
</listeners>
<test name="Logout tests">
<classes>
<class name="com.emc.qe.u360.tests.LogoutTests" />
</classes>
</test>
<test name="Login tests">
<classes>
<class name="com.emc.qe.u360.tests.LoginPageTests" />
</classes>
</test>
</suite>

Selenium grid with webdriver and testNG

I am experiencing the following problem. I have set up a grid with 2 nodes, in order to run tests in parallel.My suite.xml file has two groups, one for each node:
<suite name="testSuites" configfailurepolicy="continue" thread-count="2" parallel="tests">
test name="testSuite1" preserve-order="true">
<classes>
<class name="testA1" />
<class name="testB1" />
<class name="testC1" />
</classes>
</test>
<test name="testSuite2" preserve-order="true">
<classes>
<class name="testA2" />
<class name="testB2" />
<class name="testC2" />
</classes>
</test>
Each class, for example testA1 has the following testNG configuration:
#BeforeClass(alwaysRun = true)
public void createInitialData() {
}
#Test(alwaysRun = true, description = "bla bla")
public void testStep_1() throws Exception{
}
#Test(alwaysRun = true, description = "bla bla ", dependsOnMethods ="testStep_1" )
public void testStep_2() {
}
Upon running I noticed that during the execution, the tests are executing in test step wise order, meaning:
testA1-testStep_1, testB1-testStep_1, testC1-testStep_1, testA1-testStep_2, testB1-testStep_2, testC1-testStep_2
whereas it should have been:
testA1-testStep_1, testA1-testStep_2, and then testB1-testStep_1, testB1-testStep_2, testC1-testStep_1, testC1-testStep_2
Any suggestions?

Try to set group-by-instances in your xml
<suite group-by-instances="true">
or
<test group-by-instances="true">

<test name="testSuite2" parallel="false">
Seem also be doing what you need.

TestNG:Cannot find class in classpath, testng.xml

This is my testng.xml file, i named it differently, but it should still work:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="TEST_LINKS">
<test name="TECT на подбор спеца">
<classes>
<class name="Podbor_specalista_url_click_test" />
</classes>
</test>
<test name="TECT на клик блога">
<classes>
<class name="Blog_url_click_test" />
</classes>
</test>
</suite>
Now, i get the error, but where do I fix it?
i want to run the whole test suite consisting of these tests:

You need to give the fully qualified class name of the class you want to test in class tag, something like this
<suite thread-count="5" name="Ant suite" junit="false" annotations="JDK">
<test name="Ant test">
<classes>
<class name="com.sample.test.MyUnitTest"/>
</classes>
</test>
</suite>