* Check to make sure usernames with '.' cannot be created
* Add test for instance actor account name conflicts
This makes sure that migration 20190715164535_add_instance_actor
won't fail if there's already an account that is named the same
as the domain (minus the .)
* Put the test into the correct context...
* Add another test to split this into two validations
* Don't delete periods when validating username uniqueness (#11392)
The 20190715164535_add_instance_actor migration fails if there's
already a username similar to the domain name, e.g. if you are
'vulpine.club' and have a user named 'vulpineclub', validation
fails.
Upon further review, usernames with periods are dropped by the
regular expression in the Account class, so we don't need to
worry about it here.
Fixes#11392
* request: in the event of failure, try other IPs (#6761)
In the case where a name has multiple A/AAAA records, we should
try subsequent records instead of immediately failing when we have a
failure on the first IP address.
This significantly improves delivery success when there are network
connectivity problems affecting only IPv4 or IPv6.
* fix method call style
* request_spec: adjust test case to use Addrinfo
* request: Request/open: move private addr check to within begin/rescue
* request_spec: add case to test failover, fix exception check
* Double Addrinfo.foreach so that it correctly yields instances
Rey Tucker