Add a test case attempting to exercise the most of the cookie XML
parsing/formatting infra. Note that the data is not based on any real
case.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
