dependencies { testImplementation 'org.testng:testng:6.0.1' }
            test { useTestNG { groupByInstances true } }
        """

        file("src/test/java/SimpleTest.java") << """
            import org.testng.annotations.Test;

            public class SimpleTest {

                @Test
                public void test() {}
           }
        """

        when:
        fails "test"

        then:

            dependencies { testImplementation 'org.testng:testng:5.14.4' }
            test { useTestNG { preserveOrder true } }
        """

        file("src/test/java/SimpleTest.java") << """
            import org.testng.annotations.Test;

            public class SimpleTest {

                @Test
                public void test() {}
           }
        """

        when:
        fails "test"

        then:

            test { useTestNG { suiteThreadPoolSize = 5 } }
        """

        file("src/test/java/SimpleTest.java") << """
            import org.testng.annotations.Test;

            public class SimpleTest {

                @Test
                public void test() {}
           }
        """

        when:
        fails "test"

        then:

<?xml version="1.0" encoding="UTF-8"?>


<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="SimpleSuite">
    <test name="SimpleTest">
        <classes>
            <class name="org.gradle.FooTest"/>
            <class name="org.gradle.BarTest"/>
        </classes>
    </test>

        def suiteTestOps = operations.children(firstLevelTestOps[0], ExecuteTestBuildOperationType)
        assert suiteTestOps.size() == 1
        assert suiteTestOps*.details.testDescriptor.name == ["SimpleTest"]
        assert suiteTestOps*.details.testDescriptor.className == [null]
        assert suiteTestOps*.details.testDescriptor.composite == [true]