tests: Support multiple HTTP server instances.
* guix/tests/http.scm (%http-server-socket): Turn into... (open-http-server-socket): ... this procedure. (http-server-can-listen?): New procedure. (http-write, %http-server-lock, %http-server-ready) (http-open, stub-http-server): Move to 'call-with-http-server' body. (call-with-http-server): Add #:headers parameter. (with-http-server): Add an additional pattern with headers. * tests/derivations.scm: Use (http-server-can-listen?) instead of (force %http-server-socket). * tests/lint.scm: Likewise.
This commit is contained in:
Ludovic Courtès
parent
e37415917c
commit
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -25,7 +25,7 @@
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#:export (with-http-server
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call-with-http-server
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%http-server-port
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%http-server-socket
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http-server-can-listen?
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%local-url))
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;;; Commentary:
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@ -38,75 +38,85 @@
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;; TCP port to use for the stub HTTP server.
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(make-parameter 9999))
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(define (open-http-server-socket)
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"Return a listening socket for the web server. It is useful to export it so
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that tests can check whether we succeeded opening the socket and tests skip if
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needed."
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(catch 'system-error
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(lambda ()
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(let ((sock (socket PF_INET SOCK_STREAM 0)))
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(setsockopt sock SOL_SOCKET SO_REUSEADDR 1)
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(bind sock
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(make-socket-address AF_INET INADDR_LOOPBACK
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(%http-server-port)))
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sock))
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(lambda args
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(let ((err (system-error-errno args)))
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(format (current-error-port)
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"warning: cannot run Web server for tests: ~a~%"
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(strerror err))
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#f))))
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(define (http-server-can-listen?)
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"Return #t if we managed to open a listening socket."
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(and=> (open-http-server-socket)
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(lambda (socket)
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(close-port socket)
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#t)))
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(define (%local-url)
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;; URL to use for 'home-page' tests.
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(string-append "http://localhost:" (number->string (%http-server-port))
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"/foo/bar"))
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(define %http-server-socket
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;; Listening socket for the web server. It is useful to export it so that
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;; tests can check whether we succeeded opening the socket and tests skip if
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;; needed.
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(delay
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(catch 'system-error
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(lambda ()
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(let ((sock (socket PF_INET SOCK_STREAM 0)))
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(setsockopt sock SOL_SOCKET SO_REUSEADDR 1)
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(bind sock
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(make-socket-address AF_INET INADDR_LOOPBACK
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(%http-server-port)))
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sock))
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(lambda args
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(let ((err (system-error-errno args)))
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(format (current-error-port)
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"warning: cannot run Web server for tests: ~a~%"
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(strerror err))
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#f)))))
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(define (http-write server client response body)
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"Write RESPONSE."
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(let* ((response (write-response response client))
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(port (response-port response)))
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(cond
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((not body)) ;pass
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(else
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(write-response-body response body)))
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(close-port port)
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(quit #t) ;exit the server thread
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(values)))
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;; Mutex and condition variable to synchronize with the HTTP server.
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(define %http-server-lock (make-mutex))
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(define %http-server-ready (make-condition-variable))
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(define (http-open . args)
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"Start listening for HTTP requests and signal %HTTP-SERVER-READY."
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(with-mutex %http-server-lock
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(let ((result (apply (@@ (web server http) http-open) args)))
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(signal-condition-variable %http-server-ready)
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result)))
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(define-server-impl stub-http-server
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;; Stripped-down version of Guile's built-in HTTP server.
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http-open
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(@@ (web server http) http-read)
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http-write
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(@@ (web server http) http-close))
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(define (call-with-http-server code data thunk)
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(define* (call-with-http-server code data thunk
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#:key (headers '()))
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"Call THUNK with an HTTP server running and returning CODE and DATA (a
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string) on HTTP requests."
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(define (http-write server client response body)
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"Write RESPONSE."
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(let* ((response (write-response response client))
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(port (response-port response)))
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(cond
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((not body)) ;pass
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(else
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(write-response-body response body)))
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(close-port port)
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(quit #t) ;exit the server thread
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(values)))
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;; Mutex and condition variable to synchronize with the HTTP server.
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(define %http-server-lock (make-mutex))
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(define %http-server-ready (make-condition-variable))
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(define (http-open . args)
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"Start listening for HTTP requests and signal %HTTP-SERVER-READY."
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(with-mutex %http-server-lock
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(let ((result (apply (@@ (web server http) http-open) args)))
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(signal-condition-variable %http-server-ready)
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result)))
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(define-server-impl stub-http-server
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;; Stripped-down version of Guile's built-in HTTP server.
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http-open
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(@@ (web server http) http-read)
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http-write
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(@@ (web server http) http-close))
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(define (server-body)
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(define (handle request body)
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(values (build-response #:code code
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#:reason-phrase "Such is life")
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#:reason-phrase "Such is life"
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#:headers headers)
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data))
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(catch 'quit
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(lambda ()
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(run-server handle stub-http-server
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`(#:socket ,(force %http-server-socket))))
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(const #t)))
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(let ((socket (open-http-server-socket)))
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(catch 'quit
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(lambda ()
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(run-server handle stub-http-server
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`(#:socket ,socket)))
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(lambda _
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(close-port socket)))))
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(with-mutex %http-server-lock
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(let ((server (make-thread server-body)))
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@ -114,7 +124,12 @@ string) on HTTP requests."
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;; Normally SERVER exits automatically once it has received a request.
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(thunk))))
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(define-syntax-rule (with-http-server code data body ...)
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(call-with-http-server code data (lambda () body ...)))
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(define-syntax with-http-server
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(syntax-rules ()
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((_ (code headers) data body ...)
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(call-with-http-server code data (lambda () body ...)
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#:headers headers))
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((_ code data body ...)
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(call-with-http-server code data (lambda () body ...)))))
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;;; http.scm ends here
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@ -222,7 +222,7 @@
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(build-derivations %store (list drv))
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#f)))
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(unless (force %http-server-socket)
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(unless (http-server-can-listen?)
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(test-skip 1))
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(test-assert "'download' built-in builder"
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(let ((text (random-text)))
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@ -238,7 +238,7 @@
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get-string-all)
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text))))))
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(unless (force %http-server-socket)
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(unless (http-server-can-listen?)
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(test-skip 1))
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(test-assert "'download' built-in builder, invalid hash"
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(with-http-server 200 "hello, world!"
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@ -253,7 +253,7 @@
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(build-derivations %store (list drv))
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#f))))
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(unless (force %http-server-socket)
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(unless (http-server-can-listen?)
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(test-skip 1))
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(test-assert "'download' built-in builder, not found"
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(with-http-server 404 "not found"
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@ -279,7 +279,7 @@
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(build-derivations %store (list drv))
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#f)))
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(unless (force %http-server-socket)
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(unless (http-server-can-listen?)
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(test-skip 1))
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(test-assert "'download' built-in builder, check mode"
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;; Make sure rebuilding the 'builtin:download' derivation in check mode
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@ -388,7 +388,7 @@
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(check-home-page pkg)))
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"domain not found")))
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(test-skip (if (force %http-server-socket) 0 1))
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(test-skip (if (http-server-can-listen?) 0 1))
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(test-assert "home-page: Connection refused"
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(->bool
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(string-contains
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@ -399,7 +399,7 @@
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(check-home-page pkg)))
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"Connection refused")))
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(test-skip (if (force %http-server-socket) 0 1))
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(test-skip (if (http-server-can-listen?) 0 1))
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(test-equal "home-page: 200"
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""
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(with-warnings
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@ -409,7 +409,7 @@
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(home-page (%local-url)))))
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(check-home-page pkg)))))
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(test-skip (if (force %http-server-socket) 0 1))
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(test-skip (if (http-server-can-listen?) 0 1))
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(test-assert "home-page: 200 but short length"
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(->bool
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(string-contains
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@ -421,7 +421,7 @@
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(check-home-page pkg))))
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"suspiciously small")))
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(test-skip (if (force %http-server-socket) 0 1))
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(test-skip (if (http-server-can-listen?) 0 1))
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(test-assert "home-page: 404"
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(->bool
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(string-contains
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@ -510,7 +510,7 @@
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(check-source-file-name pkg)))
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"file name should contain the package name"))))
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(test-skip (if (force %http-server-socket) 0 1))
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(test-skip (if (http-server-can-listen?) 0 1))
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(test-equal "source: 200"
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""
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(with-warnings
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@ -523,7 +523,7 @@
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(sha256 %null-sha256))))))
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(check-source pkg)))))
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(test-skip (if (force %http-server-socket) 0 1))
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(test-skip (if (http-server-can-listen?) 0 1))
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(test-assert "source: 200 but short length"
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(->bool
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(string-contains
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@ -538,7 +538,7 @@
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(check-source pkg))))
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"suspiciously small")))
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(test-skip (if (force %http-server-socket) 0 1))
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(test-skip (if (http-server-can-listen?) 0 1))
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(test-assert "source: 404"
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(->bool
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(string-contains
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