Get a test suite

[duijf]

There is an extensive list of tests for every SPF implementation to follow. These tests suites can be found here: http://www.openspf.org/Test_Suite

A sample of this file:

---
description: Initial processing
tests:
  toolonglabel:
    description: >-
      DNS labels limited to 63 chars.
    comment: >-
      For initial processing, a long label results in None, not TempError
    spec: 4.3/1
    helo: mail.example.net
    host: 1.2.3.5
    mailfrom: lyme.eater@A123456789012345678901234567890123456789012345678901234567890123.example.com
    result: none
  longlabel:
    description: >-
      DNS labels limited to 63 chars.
    spec: 4.3/1
    helo: mail.example.net
    host: 1.2.3.5
    mailfrom: lyme.eater@A12345678901234567890123456789012345678901234567890123456789012.example.com
    result: fail
zonedata:
  example.com:
    - TIMEOUT
  example.net:
    - SPF:  v=spf1 -all exp=exp.example.net
  a.example.net:
    - SPF:  v=spf1 -all exp=exp.example.net
  exp.example.net:
    - TXT:  '%{l}'
  a12345678901234567890123456789012345678901234567890123456789012.example.com:
    - SPF:  v=spf1 -all
  hosed.example.com:
    - SPF:  "v=spf1 a:\xEF\xBB\xBFgarbage.example.net -all"
  hosed2.example.com:
    - SPF:  "v=spf1 \x80a:example.net -all"
  hosed3.example.com:
    - SPF:  "v=spf1 a:example.net \x96all"
  nothosed.example.com:
    - SPF:  "v=spf1 a:example.net -all"
    - SPF:  "\x96"
  fine.example.com:
    - TXT: "v=spf1 a  -all"

Ideally, we parse the YAML and generate Elixir tests from this. Although that might not be easy, especially considering it almost requires a complete DNS server to function with the timeouts and all that stuff.

Going to get started and give it a shot.