Quando executo meus testes testng usando a linha de comando e com os testes definidos em um arquivo testng.xml, eles são executados na ordem em que são especificados no testng.xml

<suite name="WorkDepot Tests">
        <test name="Submit work-result test">
          <classes>
                <class name="workdepot.test.SubmitWorkTest"/>
                <class name="workdepot.test.WorkResultTest"/>
                <class name="workdepot.test.SubmitWorkTest"/>
                <class name="workdepot.test.WorkErrorTest"/>
                <class name="workdepot.test.SubmitWorkTest"/>
                <class name="workdepot.test.MultipleHasTest"/>
                <class name="workdepot.test.WorkResultTest"/>
                <class name="workdepot.test.CallbackTest"/>
                <class name="workdepot.test.NegCallBackTest"/>
                <class name="workdepot.test.NegSubmitWork"/>
                <class name="workdepot.test.NegGetWork"/>
                <class name="workdepot.test.NegHasWork"/>
                <class name="workdepot.test.NegSubmitResult"/>
                <class name="workdepot.test.NegSubmitError"/>
                <class name="workdepot.test.NegReadResult"/>
                <class name="workdepot.test.NegMultipleHas"/>
          </classes>
        </test>
</suite>

Agora eu quero rodar aqueles que usam o gradleTest tipo de tarefa e eu usoinclude padrão para o mesmo. Mas a ordem de execução agora foi alterada (arbitrária).

task integTest(type: Test){
    useTestNG()
    testClassDir = file("build/classes/integTest")

    include "workdepot/test/SubmitWorkTest*"
    include "workdepot/test/WorkResultTest*"
    include "workdepot/test/SubmitWorkTest*"
    include "workdepot/test/WorkErrorTest*"
    include "workdepot/test/SubmitWorkTest*"
    include "workdepot/test/MultipleHasTest*"
    include "workdepot/test/WorkResultTest*"
    include "workdepot/test/CallbackTest*"
    include "workdepot/test/NegCallBackTest*"
    include "workdepot/test/NegSubmitWork*"
    include "workdepot/test/NegGetWork*"
    include "workdepot/test/NegHasWork*"
    include "workdepot/test/NegSubmitResult*"
    include "workdepot/test/NegSubmitError*"
    include "workdepot/test/NegReadResult*"
    include "workdepot/test/NegMultipleHas*"

}

Como garantir que os testes sejam executados na ordem como no testng.xml sem alterar o código do teste (ou seja, adicionando dependências entre os testes)