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(use-modules (gnubba xmpp))
(suite "iq/message/presence stanzas"
(tests
(test "iq should return a simple iq stanza" e
(assert-equal '(*TOP* (iq (@ (to "romeo@capulet.it")
(type "get")
(id "1234"))
"payload"))
(e 'iq1)))
(test "message should return a simple message stanza" e
(assert-equal '(*TOP* (message (@ (to "romeo@capulet.it"))
(body "hello, romeo!")))
(e 'message1)))
(test "presence should return a simple presence stanza" e
(assert-equal '(*TOP* (presence (@ (id "1234"))))
(e 'presence1)))
(test "presence takes optional body argument" e
(assert-equal '(*TOP* (presence (@ (id "1234")) "body"))
(e 'presence2)))
(test "iq? should return #t on an iq stanza" e
(assert-true (iq? (e 'iq1))))
(test "iq? should return #f on any other stanza" e
(assert-false (iq? (e 'message1))))
(test "message? should return #t on a message stanza" e
(assert-true (message? (e 'message1))))
(test "message? should return #f on any other stanza" e
(assert-false (message? (e 'iq1))))
(test "presence? should return #t on a presence stanza" e
(assert-true (presence? (e 'presence1))))
(test "presence? should return #f on any other stanza" e
(assert-false (presence? (e 'iq1)))))
(options)
(setups
(setup 'iq1 (iq "payload" #:to "romeo@capulet.it" #:id "1234"))
(setup 'message1 (message "romeo@capulet.it" "hello, romeo!"))
(setup 'presence1 (presence #:id "1234"))
(setup 'presence2 (presence "body" #:id "1234"))
(setup 'presence3 (presence "body" #:id "1234" #:from "romeo@capulet.it"))))
(suite "register-temp-stanza-handler-for-id"
(tests
(test "handler is not executed if stanza with non-matching id is received" e
(assert-false (error?
(begin
(register-temp-stanza-handler-for-id
"1234a"
(lambda _ (throw 'error)))
((@@ (gnubba xmpp) handle-stanza) (e 'stanza))))))
(test "handler remains if stanza with non-matching id is received" e
(assert-equal 1
(begin
(register-temp-stanza-handler-for-id
"1234b"
(lambda _ (throw 'error)))
((@@ (gnubba xmpp) handle-stanza) (e 'stanza))
(hash-count (const #t)
(@@ (gnubba xmpp) *stanza-id-handlers*)))))
(test "handler is removed after execution" e
(assert-equal 0
(begin
(register-temp-stanza-handler-for-id
"999"
(lambda _ 'handler))
((@@ (gnubba xmpp) handle-stanza) (e 'stanza))
(hash-count (const #t)
(@@ (gnubba xmpp) *stanza-id-handlers*))))))
(options)
(setups
(setup 'stanza (iq "payload" #:to "romeo@capulet.it" #:id "999")))
(teardowns
;; always reset the internal state after each test
(teardown e (set! (@@ (gnubba xmpp) *stanza-id-handlers*)
(make-hash-table)))))
(suite "register-stanza-handler"
(tests
(test "initially, *stanza-handlers* should be empty" e
(assert-equal '() ((e 'handlers))))
(test "after registering a handler *stanza-handlers* contains one handler" e
(assert-equal 1
(begin
(register-stanza-handler (lambda _ 'handler1))
(length ((e 'handlers))))))
(test "after registering two handlers *stanza-handlers* contains two handlers" e
(assert-equal 2
(begin
(register-stanza-handler (lambda _ 'handler1))
(register-stanza-handler (lambda _ 'handler2))
(length ((e 'handlers))))))
(test "handlers may have guards" e
(assert-equal 3
(begin
(register-stanza-handler message?
(lambda _ 'handler1))
(register-stanza-handler iq?
(lambda _ 'handler2))
(register-stanza-handler #t
(lambda _ 'handler2))
(length ((e 'handlers)))))))
(options)
(setups
(setup 'handlers (lambda () (@@ (gnubba xmpp) *stanza-handlers*))))
(teardowns
;; always reset the internal state after each test
(teardown e (set! (@@ (gnubba xmpp) *stanza-handlers*) '()))))
(suite "try-stanza-handlers"
(tests
(test "a handler registered without a guard or #t is executed for any stanza" e
(assert-equal '(handler2 handler1)
(begin
(register-stanza-handler
(lambda _ 'handler1))
(register-stanza-handler
#t
(lambda _ 'handler2))
((@@ (gnubba xmpp) try-stanza-handlers) (e 'message1)))))
(test "handlers with guards are only executed for stanzas that match (a)" e
(assert-equal '(#f handler1)
(begin
(register-stanza-handler message?
(lambda _ 'handler1))
(register-stanza-handler iq?
(lambda _ 'handler2))
((@@ (gnubba xmpp) try-stanza-handlers) (e 'message1)))))
(test "handlers with guards are only executed for stanzas that match (b)" e
(assert-equal '(handler2 #f)
(begin
(register-stanza-handler message?
(lambda _ 'handler1))
(register-stanza-handler iq?
(lambda _ 'handler2))
((@@ (gnubba xmpp) try-stanza-handlers) (e 'iq1)))))
(test "no handlers are executed if none of the guards match the stanza" e
(assert-equal '(#f #f)
(begin
(register-stanza-handler message?
(lambda _ 'handler1))
(register-stanza-handler iq?
(lambda _ 'handler2))
((@@ (gnubba xmpp) try-stanza-handlers) (e 'presence1)))))
(test "when a handler throws 'halt no other handlers are executed" e
(assert-equal '(handler2 handler3)
(let ((*executed* '()))
(register-stanza-handler
(lambda _ (set! *executed* (cons 'handler1 *executed*))))
(register-stanza-handler
(lambda _
(set! *executed* (cons 'handler2 *executed*))
(throw 'halt 'handler2)))
(register-stanza-handler
(lambda _ (set! *executed* (cons 'handler3 *executed*))))
(catch 'halt
(lambda _
((@@ (gnubba xmpp) try-stanza-handlers) (e 'message1)))
(lambda _ #t))
*executed*))))
(options)
(setups
(setup 'iq1 (iq "payload" #:to "romeo@capulet.it" #:id "1234"))
(setup 'message1 (message "romeo@capulet.it" "hello, romeo!"))
(setup 'presence1 (presence #:id "1234")))
(teardowns
;; always reset the internal state after each test
(teardown e (set! (@@ (gnubba xmpp) *stanza-handlers*) '()))))
;; TODO
(suite "next-stanza-id!" (tests))
(suite "handle-stanza"
(tests
(test "calls id handler first, then generic handler" e
(assert-equal
'(generic-handler id-handler)
(let ((results '()))
(register-stanza-handler
(lambda _ (set! results (cons 'generic-handler results))))
(register-temp-stanza-handler-for-id
(stanza-id (e 'stanza))
(lambda _ (set! results (cons 'id-handler results))))
((@@ (gnubba xmpp) handle-stanza) (e 'stanza))
results)))
(test "catches 'halt" e
(assert-false
(error?
(begin
(register-stanza-handler
(lambda _ (throw 'never-executed)))
(register-temp-stanza-handler-for-id
(stanza-id (e 'stanza))
(lambda _ (throw 'halt)))
((@@ (gnubba xmpp) handle-stanza) (e 'stanza)))))))
(options)
(setups
(setup 'stanza (iq "payload" #:to "romeo@capulet.it" #:id "1234")))
(teardowns
;; always reset the internal state after each test
(teardown e (set! (@@ (gnubba xmpp) *stanza-handlers*) '()))))
(suite "run-handler-loop"
(tests
(test "does not die when a handler throws an exception" e
(assert-false
(error? (begin
(register-stanza-handler
(lambda _ (throw 'some-error "no reason")))
(call-with-input-string
"<iq from='test' id='123'/><iq from='someone' id='234'/>"
run-handler-loop)))))
(test "processes all stanzas in the queue" e
(assert-equal 2
(let ((count 0))
(register-stanza-handler
(lambda _ (begin (set! count (1+ count))
(throw 'some-error "no reason"))))
(call-with-input-string
"<iq from='test' id='123'/><iq from='someone' id='234'/>"
run-handler-loop)
count)))))
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