New test cases for TLD tests suite

1) test_create_duplicated_tlds
   Try to create the same TLD twice, first attempt should PASS
   while second fails with 409 Conflict.
2) test_create_multiply_tlds
   Create 3 diferent TLDs, expected should PASS.
3) test_create_invalid_tld
   Attempts to create TLD using invalid values and
   huge size description. Expected 400 BadRequest
4) test_create_zone_for_not_existing_tld
   Create a zone with non existing TLD, should fail with
   400 BadRequest.
5) test_create_tld_as_primary_user
   Try to create a TLD usig Primary tenant.
   Expected: should fail with 403 Forbidden

Change-Id: Id01a1fc5eaf9d08039696795c6121e20fbe42bc7
1 file changed