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Tests for UDP multicast primitives

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Tony Garnock-Jones 2013-04-08 15:03:22 -04:00 committed by Matthew Flatt
parent 596e573497
commit 94e36c8193
1 changed files with 96 additions and 0 deletions
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collects/tests/racket/udp.rktl
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@ -192,3 +192,99 @@
(udp-close s)) (udp-close s))
;; UDP Multicast
(let ((s (udp-open-socket)))
(test #t boolean? (udp-multicast-loopback? s))
(test (void) udp-multicast-set-loopback! s #f)
(test #f udp-multicast-loopback? s)
(test (void) udp-multicast-set-loopback! s #t)
(test #t udp-multicast-loopback? s)
(test (void) udp-multicast-set-loopback! s 1234) ;; generalized schemely booleans
(test #t udp-multicast-loopback? s)
(test #t byte? (udp-multicast-ttl s))
(test (void) udp-multicast-set-ttl! s 255)
(test 255 udp-multicast-ttl s)
(test (void) udp-multicast-set-ttl! s 0)
(test 0 udp-multicast-ttl s)
(test (void) udp-multicast-set-ttl! s 1)
(test 1 udp-multicast-ttl s)
(err/rt-test (udp-multicast-set-ttl! s 'spoon) exn:fail:contract?)
(test #t string? (udp-multicast-interface s))
;; Using 8.8.8.0 here ought to fail except within a very specific network inside Google
;; (see also "whois 8.8.8.0")
(err/rt-test (udp-multicast-set-interface! s "8.8.8.0") exn:fail:network?)
(test (void) udp-multicast-set-interface! s "0.0.0.0")
(test "0.0.0.0" udp-multicast-interface s)
(test (void) udp-multicast-set-interface! s #f)
(test "0.0.0.0" udp-multicast-interface s)
;; These will only work when the loopback interface is specifically
;; on 127.0.0.1. Other commonish possibilities include 127.0.1.1, so
;; we can't assume a blanket rule here. See also
;; https://github.com/tonyg/racket-nat-traversal/blob/b505a49835a832be98343f45d46f19f8d483edb9/interfaces.rkt#L28-34.
;;
;; (test (void) udp-multicast-set-interface! s "127.0.0.1")
;; (test "127.0.0.1" udp-multicast-interface s)
;;
;; Oh, but we can use DNS names, thanks to the way Racket's
;; address-lookup stuff works!
(test (void) udp-multicast-set-interface! s "localhost")
(err/rt-test (udp-multicast-join-group! 'bonk "233.252.0.0" "0.0.0.0") exn:fail:contract?)
(err/rt-test (udp-multicast-join-group! s 'bonk "0.0.0.0") exn:fail:contract?)
(err/rt-test (udp-multicast-join-group! s "233.252.0.0" 'bonk) exn:fail:contract?)
(err/rt-test (udp-multicast-join-group! s "127.0.0.0" "0.0.0.0") exn:fail:network?)
(err/rt-test (udp-multicast-join-group! s "233.252.0.0" "8.8.8.0") exn:fail:network?)
;; http://tools.ietf.org/html/rfc5771 section 9.2:
;;
;; The first /24 in [AD-HOC Block III], 233.252.0.0/24, is assigned
;; as "MCAST-TEST-NET" for use in documentation and example code.
;; 233.252.0.0/24 SHOULD be used in conjunction with the [RFC2606]
;; domain names example.com or example.net in vendor and protocol
;; documentation. Addresses within 233.252.0.0/24 MUST NOT appear on
;; the public Internet.
(err/rt-test (udp-multicast-leave-group! s "233.252.0.0" "0.0.0.0") exn:fail:network?)
(test (void) udp-multicast-join-group! s "233.252.0.0" "0.0.0.0")
(test (void) udp-multicast-leave-group! s "233.252.0.0" "0.0.0.0")
(err/rt-test (udp-multicast-leave-group! s "233.252.0.0" "0.0.0.0") exn:fail:network?)
(test (void) udp-multicast-join-group! s "233.252.0.0" #f)
(test (void) udp-multicast-leave-group! s "233.252.0.0" #f)
(err/rt-test (udp-multicast-leave-group! s "233.252.0.0" #f) exn:fail:network?)
(test (void) udp-multicast-join-group! s "233.252.0.0" "0.0.0.0")
(test (void) udp-multicast-leave-group! s "233.252.0.0" #f)
(test (void) udp-multicast-join-group! s "233.252.0.0" #f)
(test (void) udp-multicast-leave-group! s "233.252.0.0" "0.0.0.0")
(test (void) udp-bind! s #f 0 #t)
(test (void) udp-multicast-join-group! s "233.252.0.0" "localhost")
(let*-values (((la lp ra rp) (udp-addresses s #t))
((s2) (udp-open-socket))
((b) (make-bytes 8 0)))
(test (void) udp-multicast-set-interface! s2 "localhost")
(test (void) udp-send-to s2 "233.252.0.0" lp #"hi")
(sleep 0.05)
(let-values (((packet-length ra1 rp1) (udp-receive!* s b)))
(test 2 values packet-length)
(test #"hi\0\0\0\0\0\0" values b))
(test (void) udp-multicast-leave-group! s "233.252.0.0" "localhost")
(test (void) udp-send-to s2 "233.252.0.0" lp #"hi")
(sleep 0.05)
(let-values (((packet-length ra1 rp1) (udp-receive!* s b)))
(test #f values packet-length))
(test (void) udp-close s2))
(test (void) udp-close s)
;; It's closed
(err/rt-test (udp-multicast-loopback? s) exn:fail:network?)
(err/rt-test (udp-multicast-set-loopback! s #t) exn:fail:network?)
)