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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
;;;
;;; 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 (gnu tests monitoring)
#:use-module (gnu services)
#:use-module (gnu services monitoring)
#:use-module (gnu services networking)
;#:use-module (gnu system)
#:use-module (gnu system vm)
#:use-module (gnu tests)
#:use-module (guix gexp)
#:export (%test-prometheus-node-exporter
%test-file-system-monitoring))
\f
;;;
;;; Prometheus Node Exporter
;;;
(define* (run-prometheus-node-exporter-server-test name test-os)
"Run tests in %PROMETHEUS-NODE-EXPORTER-OS, which has prometheus-node-exporter running."
(define os
(marionette-operating-system
test-os
#:imported-modules '((gnu services herd))))
(define vm
(virtual-machine
(operating-system os)
(port-forwardings '((8080 . 9100)))))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (srfi srfi-11)
(srfi srfi-64)
(gnu build marionette)
(web client)
(web response))
(define marionette
(make-marionette (list #$vm)))
(mkdir #$output)
(chdir #$output)
(test-begin #$name)
(test-assert "prometheus-node-exporter running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(match (start-service 'prometheus-node-exporter)
(#f #f)
(('service response-parts ...)
(match (assq-ref response-parts 'running)
((pid) (number? pid))))))
marionette))
(test-equal "http-get"
200
(begin
(wait-for-tcp-port 9100 marionette)
(let-values (((response text)
(http-get "http://localhost:8080")))
(response-code response))))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation (string-append name "-test") test))
(define %prometheus-node-exporter-os
(simple-operating-system
(service dhcp-client-service-type)
(service prometheus-node-exporter-service-type
(prometheus-node-exporter-configuration))))
(define %test-prometheus-node-exporter
(system-test
(name "prometheus-node-exporter")
(description "Connect to a running prometheus-node-exporter server.")
(value (run-prometheus-node-exporter-server-test
name %prometheus-node-exporter-os))))
\f
;;;
;;; File System Monitoring.
;;;
(define* (run-file-system-monitoring-test name test-os)
"Run tests in TEST-OS, which has file system monitoring running."
(define os
(marionette-operating-system
test-os
#:imported-modules '((gnu services herd))))
(define vm
(virtual-machine
(operating-system os)))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (srfi srfi-11)
(srfi srfi-64)
(gnu build marionette)
(web client)
(web response))
(define marionette
(make-marionette (list #$vm)))
(mkdir #$output)
(chdir #$output)
(test-begin #$name)
(test-assert "file system monitor running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(match (start-service 'monitor-file-system)
(#f #f)
(('service response-parts ...)
(match (assq-ref response-parts 'running)
((pid) (number? pid))))))
marionette))
(test-assert "file system monitor notices file system change"
(marionette-eval
'(begin
;; Not strictly necessary - but we want to test the actual
;; fswatch invocation and not our own synthetic events, so
;; give fswatch the chance to start up.
(sleep 2)
;; Now we provide a file change. The monitor should [restart
;; and thus] call all the handlers again.
(call-with-output-file "/tmp/notice_me" identity)
(and
(let loop ((i 0))
(if (file-exists? "/tmp/noticed")
#t
(if (>= i 10)
#f
(begin
(sleep 1)
(loop (+ i 1))))))
; assume (file-exists? "/tmp/notice_me")
(>= (stat:mtime (stat "/tmp/noticed"))
(stat:mtime (stat "/tmp/notice_me")))))
marionette))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation (string-append name "-test") test))
(define %file-system-monitoring-os
(simple-operating-system
(service file-system-monitoring-service-type
(file-system-monitoring-configuration
(monitored-files '("/tmp/notice_me"))
(handlers '(lambda args
(call-with-output-file "/tmp/noticed"
identity)))))))
(define %test-file-system-monitoring
(system-test
(name "file system monitoring")
(description "Test file system monitoring event handler.")
(value (run-file-system-monitoring-test
name %file-system-monitoring-os))))
|