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|
;;; dbus-tests.el --- Tests of D-Bus integration into Emacs -*- lexical-binding:t -*-
;; Copyright (C) 2013-2020 Free Software Foundation, Inc.
;; Author: Michael Albinus <michael.albinus@gmx.de>
;; This program 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.
;;
;; This program 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 this program. If not, see `https://www.gnu.org/licenses/'.
;;; Code:
(require 'ert)
(require 'dbus)
(defvar dbus-debug nil)
(declare-function dbus-get-unique-name "dbusbind.c" (bus))
(defconst dbus--test-enabled-session-bus
(and (featurep 'dbusbind)
(dbus-ignore-errors (dbus-get-unique-name :session)))
"Check, whether we are registered at the session bus.")
(defconst dbus--test-enabled-system-bus
(and (featurep 'dbusbind)
(dbus-ignore-errors (dbus-get-unique-name :system)))
"Check, whether we are registered at the system bus.")
(defconst dbus--test-service "org.gnu.Emacs.TestDBus"
"Test service.")
(defconst dbus--test-path "/org/gnu/Emacs/TestDBus"
"Test object path.")
(defconst dbus--test-interface "org.gnu.Emacs.TestDBus"
"Test interface.")
(defun dbus--test-availability (bus)
"Test availability of D-Bus BUS."
(should (dbus-list-names bus))
(should (dbus-list-activatable-names bus))
(should (dbus-list-known-names bus))
(should (dbus-get-unique-name bus)))
(ert-deftest dbus-test00-availability-session ()
"Test availability of D-Bus `:session'."
:expected-result (if dbus--test-enabled-session-bus :passed :failed)
(dbus--test-availability :session))
(ert-deftest dbus-test00-availability-system ()
"Test availability of D-Bus `:system'."
:expected-result (if dbus--test-enabled-system-bus :passed :failed)
(dbus--test-availability :system))
(ert-deftest dbus-test01-type-conversion ()
"Check type conversion functions."
(let ((ustr "0123abc_xyz\x01\xff")
(mstr "Grüß Göttin"))
(should
(string-equal
(dbus-byte-array-to-string (dbus-string-to-byte-array "")) ""))
(should
(string-equal
(dbus-byte-array-to-string (dbus-string-to-byte-array ustr)) ustr))
(should
(string-equal
(dbus-byte-array-to-string (dbus-string-to-byte-array mstr) 'multibyte)
mstr))
;; Should not work for multibyte strings.
(should-not
(string-equal
(dbus-byte-array-to-string (dbus-string-to-byte-array mstr)) mstr))
(should
(string-equal
(dbus-unescape-from-identifier (dbus-escape-as-identifier "")) ""))
(should
(string-equal
(dbus-unescape-from-identifier (dbus-escape-as-identifier ustr)) ustr))
;; Should not work for multibyte strings.
(should-not
(string-equal
(dbus-unescape-from-identifier (dbus-escape-as-identifier mstr)) mstr))))
(defun dbus--test-register-service (bus)
"Check service registration at BUS."
;; Cleanup.
(dbus-ignore-errors (dbus-unregister-service bus dbus--test-service))
;; Register an own service.
(should (eq (dbus-register-service bus dbus--test-service) :primary-owner))
(should (member dbus--test-service (dbus-list-known-names bus)))
(should (eq (dbus-register-service bus dbus--test-service) :already-owner))
(should (member dbus--test-service (dbus-list-known-names bus)))
;; Unregister the service.
(should (eq (dbus-unregister-service bus dbus--test-service) :released))
(should-not (member dbus--test-service (dbus-list-known-names bus)))
(should (eq (dbus-unregister-service bus dbus--test-service) :non-existent))
(should-not (member dbus--test-service (dbus-list-known-names bus)))
;; `dbus-service-dbus' is reserved for the BUS itself.
(should-error (dbus-register-service bus dbus-service-dbus))
(should-error (dbus-unregister-service bus dbus-service-dbus)))
(ert-deftest dbus-test02-register-service-session ()
"Check service registration at `:session' bus."
(skip-unless (and dbus--test-enabled-session-bus
(dbus-register-service :session dbus--test-service)))
(dbus--test-register-service :session)
(let ((service "org.freedesktop.Notifications"))
(when (member service (dbus-list-known-names :session))
;; Cleanup.
(dbus-ignore-errors (dbus-unregister-service :session service))
(should (eq (dbus-register-service :session service) :in-queue))
(should (eq (dbus-unregister-service :session service) :released))
(should
(eq (dbus-register-service :session service :do-not-queue) :exists))
(should (eq (dbus-unregister-service :session service) :not-owner)))))
(ert-deftest dbus-test02-register-service-system ()
"Check service registration at `:system' bus."
(skip-unless (and dbus--test-enabled-system-bus
(dbus-register-service :system dbus--test-service)))
(dbus--test-register-service :system))
(ert-deftest dbus-test02-register-service-own-bus ()
"Check service registration with an own bus.
This includes initialization and closing the bus."
;; Start bus.
(let ((output
(ignore-errors
(shell-command-to-string "env DISPLAY= dbus-launch --sh-syntax")))
bus pid)
(skip-unless (stringp output))
(when (string-match "DBUS_SESSION_BUS_ADDRESS='\\(.+\\)';" output)
(setq bus (match-string 1 output)))
(when (string-match "DBUS_SESSION_BUS_PID=\\([[:digit:]]+\\);" output)
(setq pid (match-string 1 output)))
(unwind-protect
(progn
(skip-unless
(dbus-ignore-errors
(and bus pid
(featurep 'dbusbind)
(dbus-init-bus bus)
(dbus-get-unique-name bus)
(dbus-register-service bus dbus--test-service))))
;; Run the test.
(dbus--test-register-service bus))
;; Save exit.
(when pid (call-process "kill" nil nil nil pid)))))
(ert-deftest dbus-test03-peer-interface ()
"Check `dbus-interface-peer' methods."
(skip-unless
(and dbus--test-enabled-session-bus
(dbus-register-service :session dbus--test-service)
;; "GetMachineId" is not implemented (yet). When it returns a
;; value, another D-Bus client like dbus-monitor is reacting
;; on `dbus-interface-peer'. We cannot test then.
(not
(dbus-ignore-errors
(dbus-call-method
:session dbus--test-service dbus-path-dbus
dbus-interface-peer "GetMachineId" :timeout 100)))))
(should (dbus-ping :session dbus--test-service 100))
(dbus-unregister-service :session dbus--test-service)
(should-not (dbus-ping :session dbus--test-service 100)))
(defun dbus--test-method-handler (&rest args)
"Method handler for `dbus-test04-register-method'."
(cond
;; No argument.
((null args)
:ignore)
;; One argument.
((= 1 (length args))
(car args))
;; Two arguments.
((= 2 (length args))
`(:error ,dbus-error-invalid-args
,(format-message "Wrong arguments %s" args)))
;; More than two arguments.
(t (signal 'dbus-error (cons "D-Bus signal" args)))))
(ert-deftest dbus-test04-register-method ()
"Check method registration for an own service."
(skip-unless dbus--test-enabled-session-bus)
(dbus-ignore-errors (dbus-unregister-service :session dbus--test-service))
(unwind-protect
(let ((method "Method")
(handler #'dbus--test-method-handler))
(should
(equal
(dbus-register-method
:session dbus--test-service dbus--test-path
dbus--test-interface method handler)
`((:method :session ,dbus--test-interface ,method)
(,dbus--test-service ,dbus--test-path ,handler))))
;; No argument, returns nil.
(should-not
(dbus-call-method
:session dbus--test-service dbus--test-path
dbus--test-interface method))
;; One argument, returns the argument.
(should
(string-equal
(dbus-call-method
:session dbus--test-service dbus--test-path
dbus--test-interface method "foo")
"foo"))
;; Two arguments, D-Bus error activated as `(:error ...)' list.
(should
(equal
(should-error
(dbus-call-method
:session dbus--test-service dbus--test-path
dbus--test-interface method "foo" "bar"))
`(dbus-error ,dbus-error-invalid-args "Wrong arguments (foo bar)")))
;; Three arguments, D-Bus error activated by `dbus-error' signal.
(should
(equal
(should-error
(dbus-call-method
:session dbus--test-service dbus--test-path
dbus--test-interface method "foo" "bar" "baz"))
`(dbus-error
,dbus-error-failed
"D-Bus error: \"D-Bus signal\", \"foo\", \"bar\", \"baz\""))))
;; Cleanup.
(dbus-unregister-service :session dbus--test-service)))
(ert-deftest dbus-test05-register-property ()
"Check property registration for an own service."
(skip-unless dbus--test-enabled-session-bus)
(dbus-ignore-errors (dbus-unregister-service :session dbus--test-service))
(unwind-protect
(let ((property1 "Property1")
(property2 "Property2")
(property3 "Property3"))
;; Not registered property.
(should-not
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1))
;; `:read' property.
(should
(equal
(dbus-register-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1 :read "foo")
`((:property :session "org.gnu.Emacs.TestDBus" ,property1)
(,dbus--test-service ,dbus--test-path))))
(should
(string-equal
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1)
"foo"))
(should-not ;; Due to `:read' access type.
(dbus-set-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1 "foofoo"))
(should
(string-equal
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1)
"foo"))
;; `:write' property.
(should
(equal
(dbus-register-property
:session dbus--test-service dbus--test-path
dbus--test-interface property2 :write "bar")
`((:property :session "org.gnu.Emacs.TestDBus" ,property2)
(,dbus--test-service ,dbus--test-path))))
(should-not ;; Due to `:write' access type.
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property2))
(should
(string-equal
(dbus-set-property
:session dbus--test-service dbus--test-path
dbus--test-interface property2 "barbar")
"barbar"))
(should-not ;; Due to `:write' access type.
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property2))
;; `:readwrite' property, typed value (Bug#43252).
(should
(equal
(dbus-register-property
:session dbus--test-service dbus--test-path
dbus--test-interface property3 :readwrite :object-path "/baz")
`((:property :session "org.gnu.Emacs.TestDBus" ,property3)
(,dbus--test-service ,dbus--test-path))))
(should
(string-equal
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property3)
"/baz"))
(should
(string-equal
(dbus-set-property
:session dbus--test-service dbus--test-path
dbus--test-interface property3 :object-path "/baz/baz")
"/baz/baz"))
(should
(string-equal
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property3)
"/baz/baz"))
;; `dbus-get-all-properties'. We cannot retrieve a value for
;; the property with `:write' access type.
(let ((result
(dbus-get-all-properties
:session dbus--test-service dbus--test-path
dbus--test-interface)))
(should (string-equal (cdr (assoc property1 result)) "foo"))
(should (string-equal (cdr (assoc property3 result)) "/baz/baz"))
(should-not (assoc property2 result))))
;; FIXME: This is wrong! The properties are missing.
;; (should
;; (equal
;; (dbus-get-all-managed-objects
;; :session dbus--test-service dbus--test-path)
;; `((,dbus--test-path
;; ((,dbus-interface-peer)
;; (,dbus-interface-objectmanager)
;; (,dbus-interface-properties)))))))
;; Cleanup.
(dbus-unregister-service :session dbus--test-service)))
;; The following test is inspired by Bug#43146.
(ert-deftest dbus-test05-register-property-several-paths ()
"Check property registration for an own service at several paths."
(skip-unless dbus--test-enabled-session-bus)
(dbus-ignore-errors (dbus-unregister-service :session dbus--test-service))
(unwind-protect
(let ((property1 "Property1")
(property2 "Property2")
(property3 "Property3"))
;; First path.
(should
(equal
(dbus-register-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1 :readwrite "foo")
`((:property :session "org.gnu.Emacs.TestDBus" ,property1)
(,dbus--test-service ,dbus--test-path))))
(should
(equal
(dbus-register-property
:session dbus--test-service dbus--test-path
dbus--test-interface property2 :readwrite "bar")
`((:property :session "org.gnu.Emacs.TestDBus" ,property2)
(,dbus--test-service ,dbus--test-path))))
(should
(string-equal
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1)
"foo"))
(should
(string-equal
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property2)
"bar"))
(should
(string-equal
(dbus-set-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1 "foofoo")
"foofoo"))
(should
(string-equal
(dbus-set-property
:session dbus--test-service dbus--test-path
dbus--test-interface property2 "barbar")
"barbar"))
(should
(string-equal
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property1)
"foofoo"))
(should
(string-equal
(dbus-get-property
:session dbus--test-service dbus--test-path
dbus--test-interface property2)
"barbar"))
;; Second path.
(should
(equal
(dbus-register-property
:session dbus--test-service (concat dbus--test-path dbus--test-path)
dbus--test-interface property2 :readwrite "foo")
`((:property :session "org.gnu.Emacs.TestDBus" ,property2)
(,dbus--test-service ,(concat dbus--test-path dbus--test-path)))))
(should
(equal
(dbus-register-property
:session dbus--test-service (concat dbus--test-path dbus--test-path)
dbus--test-interface property3 :readwrite "bar")
`((:property :session "org.gnu.Emacs.TestDBus" ,property3)
(,dbus--test-service ,(concat dbus--test-path dbus--test-path)))))
(should
(string-equal
(dbus-get-property
:session dbus--test-service (concat dbus--test-path dbus--test-path)
dbus--test-interface property2)
"foo"))
(should
(string-equal
(dbus-get-property
:session dbus--test-service (concat dbus--test-path dbus--test-path)
dbus--test-interface property3)
"bar"))
(should
(string-equal
(dbus-set-property
:session dbus--test-service (concat dbus--test-path dbus--test-path)
dbus--test-interface property2 "foofoo")
"foofoo"))
(should
(string-equal
(dbus-set-property
:session dbus--test-service (concat dbus--test-path dbus--test-path)
dbus--test-interface property3 "barbar")
"barbar"))
(should
(string-equal
(dbus-get-property
:session dbus--test-service (concat dbus--test-path dbus--test-path)
dbus--test-interface property2)
"foofoo"))
(should
(string-equal
(dbus-get-property
:session dbus--test-service (concat dbus--test-path dbus--test-path)
dbus--test-interface property3)
"barbar"))
;; Everything is still fine, tested with `dbus-get-all-properties'.
(let ((result
(dbus-get-all-properties
:session dbus--test-service dbus--test-path
dbus--test-interface)))
(should (string-equal (cdr (assoc property1 result)) "foofoo"))
(should (string-equal (cdr (assoc property2 result)) "barbar"))
(should-not (assoc property3 result)))
(let ((result
(dbus-get-all-properties
:session dbus--test-service
(concat dbus--test-path dbus--test-path) dbus--test-interface)))
(should (string-equal (cdr (assoc property2 result)) "foofoo"))
(should (string-equal (cdr (assoc property3 result)) "barbar"))
(should-not (assoc property1 result))))
;; Cleanup.
(dbus-unregister-service :session dbus--test-service)))
(defun dbus-test-all (&optional interactive)
"Run all tests for \\[dbus]."
(interactive "p")
(funcall (if interactive #'ert-run-tests-interactively #'ert-run-tests-batch)
"^dbus"))
(provide 'dbus-tests)
;;; dbus-tests.el ends here
|