~ruther/guix-local

17ab08bcf0ae27ec6a1f07766080ebfbea8837d9 — Ludovic Courtès 9 years ago 1bcc87b
tests: Move HTTP server to (guix tests http).

* tests/lint.scm (%http-server-port, %local-url)
(%http-server-socket, http-write, %http-server-lock)
(%http-server-ready, http-open, stub-http-server)
(call-with-http-server, with-http-server): Move to (guix tests http).
Adjust tests for %HTTP-SERVER-SOCKET as a promise and %LOCAL-URL as a
parameter.
* guix/tests/http.scm: New file.
* Makefile.am (dist_noinst_DATA): Add it.
(GOBJECTS): Add .go files for all of $(dist_noinst_DATA).
(make-go): Depend on $(dist_noinst_DATA).
3 files changed, 141 insertions(+), 101 deletions(-)

M Makefile.am
A guix/tests/http.scm
M tests/lint.scm
M Makefile.am => Makefile.am +4 -4
@@ 171,8 171,8 @@ MODULES +=					\

endif BUILD_DAEMON_OFFLOAD

# Internal module with test suite support.
dist_noinst_DATA = guix/tests.scm
# Internal modules with test suite support.
dist_noinst_DATA = guix/tests.scm guix/tests/http.scm

# Linux-Libre configurations.
KCONFIGS =					\


@@ 189,7 189,7 @@ EXAMPLES =					\
  gnu/system/examples/desktop.tmpl		\
  gnu/system/examples/lightweight-desktop.tmpl

GOBJECTS = $(MODULES:%.scm=%.go) guix/config.go guix/tests.go
GOBJECTS = $(MODULES:%.scm=%.go) guix/config.go $(dist_noinst_DATA:%.scm=%.go)

nobase_dist_guilemodule_DATA =                  \
  $(MODULES) $(KCONFIGS) $(EXAMPLES)            \


@@ 407,7 407,7 @@ CLEANFILES =					\
# the whole thing.  Likewise, set 'XDG_CACHE_HOME' to avoid loading possibly
# stale files from ~/.cache/guile/ccache.
%.go: make-go ; @:
make-go: $(MODULES) guix/config.scm guix/tests.scm
make-go: $(MODULES) guix/config.scm $(dist_noinst_DATA)
	$(AM_V_at)echo "Compiling Scheme modules..." ;			\
	unset GUILE_LOAD_COMPILED_PATH ;				\
	XDG_CACHE_HOME=/nowhere						\

A guix/tests/http.scm => guix/tests/http.scm +120 -0
@@ 0,0 1,120 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (guix tests http)
  #:use-module (ice-9 threads)
  #:use-module (web server)
  #:use-module (web server http)
  #:use-module (web response)
  #:use-module (srfi srfi-39)
  #:export (with-http-server
            call-with-http-server
            %http-server-port
            %http-server-socket
            %local-url))

;;; Commentary:
;;;
;;; Code to spawn a Web server for testing purposes.
;;;
;;; Code:

(define %http-server-port
  ;; TCP port to use for the stub HTTP server.
  (make-parameter 9999))

(define (%local-url)
  ;; URL to use for 'home-page' tests.
  (string-append "http://localhost:" (number->string (%http-server-port))
                 "/foo/bar"))

(define %http-server-socket
  ;; Listening socket for the web server.  It is useful to export it so that
  ;; tests can check whether we succeeded opening the socket and tests skip if
  ;; needed.
  (delay
    (catch 'system-error
      (lambda ()
        (let ((sock (socket PF_INET SOCK_STREAM 0)))
          (setsockopt sock SOL_SOCKET SO_REUSEADDR 1)
          (bind sock
                (make-socket-address AF_INET INADDR_LOOPBACK
                                     (%http-server-port)))
          sock))
      (lambda args
        (let ((err (system-error-errno args)))
          (format (current-error-port)
                  "warning: cannot run Web server for tests: ~a~%"
                  (strerror err))
          #f)))))

(define (http-write server client response body)
  "Write RESPONSE."
  (let* ((response (write-response response client))
         (port     (response-port response)))
    (cond
     ((not body))                                 ;pass
     (else
      (write-response-body response body)))
    (close-port port)
    (quit #t)                                     ;exit the server thread
    (values)))

;; Mutex and condition variable to synchronize with the HTTP server.
(define %http-server-lock (make-mutex))
(define %http-server-ready (make-condition-variable))

(define (http-open . args)
  "Start listening for HTTP requests and signal %HTTP-SERVER-READY."
  (with-mutex %http-server-lock
    (let ((result (apply (@@ (web server http) http-open) args)))
      (signal-condition-variable %http-server-ready)
      result)))

(define-server-impl stub-http-server
  ;; Stripped-down version of Guile's built-in HTTP server.
  http-open
  (@@ (web server http) http-read)
  http-write
  (@@ (web server http) http-close))

(define (call-with-http-server code data thunk)
  "Call THUNK with an HTTP server running and returning CODE and DATA (a
string) on HTTP requests."
  (define (server-body)
    (define (handle request body)
      (values (build-response #:code code
                              #:reason-phrase "Such is life")
              data))

    (catch 'quit
      (lambda ()
        (run-server handle stub-http-server
                    `(#:socket ,(force %http-server-socket))))
      (const #t)))

  (with-mutex %http-server-lock
    (let ((server (make-thread server-body)))
      (wait-condition-variable %http-server-ready %http-server-lock)
      ;; Normally SERVER exits automatically once it has received a request.
      (thunk))))

(define-syntax-rule (with-http-server code data body ...)
  (call-with-http-server code data (lambda () body ...)))

;;; http.scm ends here

M tests/lint.scm => tests/lint.scm +17 -97
@@ 24,6 24,7 @@

(define-module (test-lint)
  #:use-module (guix tests)
  #:use-module (guix tests http)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix build-system gnu)


@@ 33,101 34,20 @@
  #:use-module (gnu packages)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages pkg-config)
  #:use-module (web server)
  #:use-module (web server http)
  #:use-module (web response)
  #:use-module (ice-9 match)
  #:use-module (ice-9 threads)
  #:use-module (srfi srfi-9 gnu)
  #:use-module (srfi srfi-64))

;; Test the linter.

(define %http-server-port
  ;; TCP port to use for the stub HTTP server.
  9999)

(define %local-url
  ;; URL to use for 'home-page' tests.
  (string-append "http://localhost:" (number->string %http-server-port)
                 "/foo/bar"))
;; Avoid collisions with other tests.
(%http-server-port 9999)

(define %null-sha256
  ;; SHA256 of the empty string.
  (base32
   "0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73"))

(define %http-server-socket
  ;; Socket used by the Web server.
  (catch 'system-error
    (lambda ()
      (let ((sock (socket PF_INET SOCK_STREAM 0)))
        (setsockopt sock SOL_SOCKET SO_REUSEADDR 1)
        (bind sock
              (make-socket-address AF_INET INADDR_LOOPBACK
                                   %http-server-port))
        sock))
    (lambda args
      (let ((err (system-error-errno args)))
        (format (current-error-port)
                "warning: cannot run Web server for tests: ~a~%"
                (strerror err))
        #f))))

(define (http-write server client response body)
  "Write RESPONSE."
  (let* ((response (write-response response client))
         (port     (response-port response)))
    (cond
     ((not body))                                 ;pass
     (else
      (write-response-body response body)))
    (close-port port)
    (quit #t)                                     ;exit the server thread
    (values)))

;; Mutex and condition variable to synchronize with the HTTP server.
(define %http-server-lock (make-mutex))
(define %http-server-ready (make-condition-variable))

(define (http-open . args)
  "Start listening for HTTP requests and signal %HTTP-SERVER-READY."
  (with-mutex %http-server-lock
    (let ((result (apply (@@ (web server http) http-open) args)))
      (signal-condition-variable %http-server-ready)
      result)))

(define-server-impl stub-http-server
  ;; Stripped-down version of Guile's built-in HTTP server.
  http-open
  (@@ (web server http) http-read)
  http-write
  (@@ (web server http) http-close))

(define (call-with-http-server code data thunk)
  "Call THUNK with an HTTP server running and returning CODE and DATA (a
string) on HTTP requests."
  (define (server-body)
    (define (handle request body)
      (values (build-response #:code code
                              #:reason-phrase "Such is life")
              data))

    (catch 'quit
      (lambda ()
        (run-server handle stub-http-server
                    `(#:socket ,%http-server-socket)))
      (const #t)))

  (with-mutex %http-server-lock
    (let ((server (make-thread server-body)))
      (wait-condition-variable %http-server-ready %http-server-lock)
      ;; Normally SERVER exits automatically once it has received a request.
      (thunk))))

(define-syntax-rule (with-http-server code data body ...)
  (call-with-http-server code data (lambda () body ...)))

(define %long-string
  (make-string 2000 #\a))



@@ 423,28 343,28 @@ string) on HTTP requests."
        (check-home-page pkg)))
    "domain not found")))

(test-skip (if %http-server-socket 0 1))
(test-skip (if (force %http-server-socket) 0 1))
(test-assert "home-page: Connection refused"
  (->bool
   (string-contains
    (with-warnings
      (let ((pkg (package
                   (inherit (dummy-package "x"))
                   (home-page %local-url))))
                   (home-page (%local-url)))))
        (check-home-page pkg)))
    "Connection refused")))

(test-skip (if %http-server-socket 0 1))
(test-skip (if (force %http-server-socket) 0 1))
(test-equal "home-page: 200"
  ""
  (with-warnings
   (with-http-server 200 %long-string
     (let ((pkg (package
                  (inherit (dummy-package "x"))
                  (home-page %local-url))))
                  (home-page (%local-url)))))
       (check-home-page pkg)))))

(test-skip (if %http-server-socket 0 1))
(test-skip (if (force %http-server-socket) 0 1))
(test-assert "home-page: 200 but short length"
  (->bool
   (string-contains


@@ 452,11 372,11 @@ string) on HTTP requests."
      (with-http-server 200 "This is too small."
        (let ((pkg (package
                     (inherit (dummy-package "x"))
                     (home-page %local-url))))
                     (home-page (%local-url)))))
          (check-home-page pkg))))
    "suspiciously small")))

(test-skip (if %http-server-socket 0 1))
(test-skip (if (force %http-server-socket) 0 1))
(test-assert "home-page: 404"
  (->bool
   (string-contains


@@ 464,7 384,7 @@ string) on HTTP requests."
      (with-http-server 404 %long-string
        (let ((pkg (package
                     (inherit (dummy-package "x"))
                     (home-page %local-url))))
                     (home-page (%local-url)))))
          (check-home-page pkg))))
    "not reachable: 404")))



@@ 545,7 465,7 @@ string) on HTTP requests."
         (check-source-file-name pkg)))
     "file name should contain the package name"))))

(test-skip (if %http-server-socket 0 1))
(test-skip (if (force %http-server-socket) 0 1))
(test-equal "source: 200"
  ""
  (with-warnings


@@ 554,11 474,11 @@ string) on HTTP requests."
                  (inherit (dummy-package "x"))
                  (source (origin
                            (method url-fetch)
                            (uri %local-url)
                            (uri (%local-url))
                            (sha256 %null-sha256))))))
       (check-source pkg)))))

(test-skip (if %http-server-socket 0 1))
(test-skip (if (force %http-server-socket) 0 1))
(test-assert "source: 200 but short length"
  (->bool
   (string-contains


@@ 568,12 488,12 @@ string) on HTTP requests."
                     (inherit (dummy-package "x"))
                     (source (origin
                               (method url-fetch)
                               (uri %local-url)
                               (uri (%local-url))
                               (sha256 %null-sha256))))))
          (check-source pkg))))
    "suspiciously small")))

(test-skip (if %http-server-socket 0 1))
(test-skip (if (force %http-server-socket) 0 1))
(test-assert "source: 404"
  (->bool
   (string-contains


@@ 583,7 503,7 @@ string) on HTTP requests."
                     (inherit (dummy-package "x"))
                     (source (origin
                               (method url-fetch)
                               (uri %local-url)
                               (uri (%local-url))
                               (sha256 %null-sha256))))))
          (check-source pkg))))
    "not reachable: 404")))