java-tutorials/testing-modules/testng/src/test/resources/test_setup.xml

<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="regression_test">
    <test name="test setup">
        <groups>
            <run>
                <include name="regression"/>
            </run>
        </groups>
        <classes>
            <class name="com.baeldung.SummationServiceIntegrationTest">
                <methods>
                    <include name="givenNumbers_sumEquals_thenCorrect"/>
                </methods>
            </class>
        </classes>
    </test>
</suite>