tu.xml

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
<suite name="Unit test suite" parallel="methods" verbose="1" thread-count="1" configfailurepolicy="continue">
   
	<parameter name="implicitWaitTimeOut" value="2"></parameter>
	<parameter name="browser" value="opera" />
	<parameter name="app" value="https://www.test.google.fr" />
	<parameter name="aParam" value="value1" />
	<parameter name="anOtherParam" value="value2" />
	<parameter name="variable1" value="value4" />
    <parameter name="testConfig" value="exampleConfigGenericParams.xml" />
	<parameter name="devMode" value="true" />

    <test name="Unit tests" parallel="false">
        
        <groups>
            <run>
                <include name="grid"/>
            </run>
        </groups>

        <packages>
            <package name="com.infotel.seleniumrobot.*" />
        </packages>
    </test>


</suite>