when:
        testngOptions.includeGroups(groups)

        then:
        testngOptions.includeGroups == groups as Set
        testngOptions.excludeGroups.empty
    }

    def testExcludeGroups() {
        when:
        testngOptions.excludeGroups(groups)

        then:
        testngOptions.excludeGroups == groups as Set
        testngOptions.includeGroups.empty
    }