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gnu: Add system test for Emacs.

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* gnu/tests/emacs.scm: New file.
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Liliana Marie Prikler 2024-07-19 09:35:34 +02:00
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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2024 Liliana Marie Prikler <liliana.prikler@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 emacs)
#:use-module (gnu tests)
#:use-module (gnu packages emacs)
#:use-module (gnu packages vim)
#:use-module (gnu services)
#:use-module (gnu system)
#:use-module (gnu system vm)
#:use-module (guix packages)
#:use-module (guix gexp)
#:use-module (srfi srfi-1)
#:export (%test-emacs-native-comp-replacable))
(define (run-native-comp-replacable-test old-emacs new-emacs)
(define vm (virtual-machine (marionette-operating-system %simple-os)))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (gnu build marionette)
(srfi srfi-1)
(srfi srfi-64))
(define marionette (make-marionette (list #$vm)))
(define (marionette-emacs-eval emacs code)
(marionette-eval
`(begin
(use-modules (ice-9 rdelim) (ice-9 popen))
(read-line
(open-pipe*
OPEN_READ
,emacs "--batch"
,(string-append "--eval=" code))))
marionette))
(define (emacs-native-comp-dir emacs)
(marionette-emacs-eval emacs "(princ comp-native-version-dir)"))
(define (emacs-abi-hash emacs)
(marionette-emacs-eval emacs "(princ comp-abi-hash)"))
(define (emacs-effective-version emacs)
(marionette-emacs-eval
emacs
"(princ
(format \"%s.%s\" emacs-major-version emacs-minor-version))"))
(define old-emacs-bin #$(file-append old-emacs "/bin/emacs"))
(define new-emacs-bin #$(file-append new-emacs "/bin/emacs"))
(test-runner-current (system-test-runner #$output))
(test-begin "emacs-native-comp-replacable")
(test-equal "comp-abi-hash"
(emacs-abi-hash old-emacs-bin)
(emacs-abi-hash new-emacs-bin))
(test-equal "native-comp-dir"
(emacs-native-comp-dir old-emacs-bin)
(emacs-native-comp-dir new-emacs-bin))
(test-assert "old emacs has hierarchical layout"
(file-exists?
(string-append #$old-emacs "/lib/emacs/"
(emacs-effective-version old-emacs-bin)
"/native-lisp/"
(emacs-native-comp-dir old-emacs-bin)
"/preloaded/emacs-lisp/comp.eln")))
(test-assert "new emacs has hierarchical layout"
(file-exists?
(string-append #$new-emacs "/lib/emacs/"
(emacs-effective-version new-emacs-bin)
"/native-lisp/"
(emacs-native-comp-dir new-emacs-bin)
"/preloaded/emacs-lisp/comp.eln")))
(test-end))))
(gexp->derivation "emacs-native-comp-compatible" test))
(define (package-without-replacement pkg)
(package (inherit pkg) (replacement #f)))
(define %test-emacs-native-comp-replacable
(system-test
(name "emacs-native-comp")
(description "Test whether an emacs replacement (if any) is valid.")
(value (run-native-comp-replacable-test
(package-without-replacement emacs)
emacs))))