From 17ab08bcf0ae27ec6a1f07766080ebfbea8837d9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= Date: Wed, 16 Nov 2016 16:34:17 +0100 Subject: 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). --- guix/tests/http.scm | 120 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 guix/tests/http.scm (limited to 'guix/tests') diff --git a/guix/tests/http.scm b/guix/tests/http.scm new file mode 100644 index 0000000000..fe1e120c5d --- /dev/null +++ b/guix/tests/http.scm @@ -0,0 +1,120 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2014, 2015, 2016 Ludovic Courtès +;;; +;;; 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 . + +(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 -- cgit v1.2.3