JvmOptions opts = createOpts()
        when:
        opts.defaultCharacterEncoding = "ISO-8859-1"
        then:
        opts.allJvmArgs.contains("-Dfile.encoding=ISO-8859-1");
    }

    def "uses system default file encoding when null is used"() {
        JvmOptions opts = createOpts()
        when:
        opts.defaultCharacterEncoding = null
        then:

		return err
	}
	if err := createCertsTokens(kubeClient, wg, outputDir, out); err != nil {
		return err
	}
	if err := createHosts(kubeClient, istioNamespace, ingressIP, outputDir, revision); err != nil {
		return err
	}
	return nil
}

// Write cluster.env into the given directory