ClusterSpec cloudServersUkSpec = ClusterSpec.withTemporaryKeys(cloudServersUkConfig);
assertEquals(cloudServersUkSpec.getAutoHostnamePrefix(), null);
assertEquals(cloudServersUkSpec.getAutoHostnameSuffix(), ".static.cloud-ips.co.uk");
Configuration ec2Config = new PropertiesConfiguration();
ec2Config.addProperty("whirr.provider", "aws-ec2");
ClusterSpec ec2Spec = ClusterSpec.withTemporaryKeys(ec2Config);
assertEquals(null, ec2Spec.getAutoHostnamePrefix());
assertEquals(null, ec2Spec.getAutoHostnameSuffix());
}