public void test() {
InputStream is = getClass().getResourceAsStream("/describe_security_groups_vpc.xml");
Set<SecurityGroup> expected = expected();
DescribeSecurityGroupsResponseHandler handler = injector.getInstance(DescribeSecurityGroupsResponseHandler.class);
addDefaultRegionToHandler(handler);
Set<SecurityGroup> result = factory.create(handler).parse(is);
assertEquals(result.toString(), expected.toString());
}