me
/
guix
Archived
1
0
Fork 0
This repository has been archived on 2024-08-07. You can view files and clone it, but cannot push or open issues/pull-requests.
guix/tests/read-print.scm

436 lines
9.8 KiB
Scheme
Raw Blame History

This file contains invisible Unicode characters!

This file contains invisible Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021-2023 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 (tests-style)
#:use-module (guix read-print)
#:use-module (guix gexp) ;for the reader extensions
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:use-module (srfi srfi-64)
#:use-module (ice-9 match))
(define-syntax-rule (test-pretty-print str args ...)
"Test equality after a round-trip where STR is passed to
'read-with-comments' and the resulting sexp is then passed to
'pretty-print-with-comments'."
(test-equal str
(call-with-output-string
(lambda (port)
(let ((exp (call-with-input-string str
read-with-comments)))
(pretty-print-with-comments port exp args ...))))))
(define-syntax-rule (test-pretty-print/sequence str args ...)
"Likewise, but read and print entire sequences rather than individual
expressions."
(test-equal str
(call-with-output-string
(lambda (port)
(let ((lst (call-with-input-string str
read-with-comments/sequence)))
(pretty-print-with-comments/splice port lst args ...))))))
(test-begin "read-print")
(test-assert "read-with-comments: missing closing paren"
(guard (c ((error? c) #t))
(call-with-input-string "(what is going on?"
read-with-comments)))
(test-equal "read-with-comments: dot notation"
(cons 'a 'b)
(call-with-input-string "(a . b)"
read-with-comments))
(test-equal "read-with-comments: half dot notation"
'(lambda x x)
(call-with-input-string "(lambda (. x) x)"
read-with-comments))
(test-equal "read-with-comments: list with blank line"
`(list with ,(vertical-space 1) blank line)
(call-with-input-string "\
(list with
blank line)\n"
read-with-comments))
(test-equal "read-with-comments: list with multiple blank lines"
`(list with ,(comment ";multiple\n" #t)
,(vertical-space 3) blank lines)
(call-with-input-string "\
(list with ;multiple
blank lines)\n"
read-with-comments))
(test-equal "read-with-comments: top-level blank lines"
(list (vertical-space 2) '(a b c) (vertical-space 2))
(call-with-input-string "
(a b c)\n\n"
(lambda (port)
(list (read-with-comments port)
(read-with-comments port)
(read-with-comments port)))))
(test-equal "read-with-comments: top-level page break"
(list (comment ";; Begin.\n") (vertical-space 1)
(page-break)
(comment ";; End.\n"))
(call-with-input-string "\
;; Begin.
;; End.\n"
(lambda (port)
(list (read-with-comments port)
(read-with-comments port)
(read-with-comments port)
(read-with-comments port)))))
(test-pretty-print "(list 1 2 3 4)")
(test-pretty-print "((a . 1) (b . 2))")
(test-pretty-print "(a b c . boom)")
(test-pretty-print "(list 1
2
3
4)"
#:long-list 3
#:indent 20)
(test-pretty-print "\
(list abc
def)"
#:max-width 11)
(test-pretty-print "\
(#:foo
#:bar)"
#:max-width 10)
(test-pretty-print "\
(#:first 1
#:second 2
#:third 3)")
(test-pretty-print "\
((x
1)
(y
2)
(z
3))"
#:max-width 3)
(test-pretty-print "\
(let ((x 1)
(y 2)
(z 3)
(p 4))
(+ x y))"
#:max-width 11)
(test-pretty-print "\
(begin
1+ 1- 123/ 456*
(1+ 41))")
(test-pretty-print "\
(lambda (x y)
;; This is a procedure.
(let ((z (+ x y)))
(* z z)))")
(test-pretty-print "\
(case x
((1)
'one)
((2)
'two))")
(test-pretty-print "\
(cond
((zero? x)
'zero)
((odd? x)
'odd)
(else #f))")
(test-pretty-print "\
#~(string-append #$coreutils \"/bin/uname\")")
(test-pretty-print "\
(package
(inherit coreutils)
(version \"42\"))")
(test-pretty-print "\
(modify-phases %standard-phases
(add-after 'unpack 'post-unpack
(lambda _
#t))
(add-before 'check 'pre-check
(lambda* (#:key inputs #:allow-other-keys)
do things ...)))")
(test-pretty-print "\
(#:phases (modify-phases sdfsdf
(add-before 'x 'y
(lambda _
xyz))))")
(test-pretty-print "\
(string-append \"a\\tb\" \"\\n\")")
(test-pretty-print "\
(display \"This is a very long string.
It contains line breaks, which are preserved,
because it's a long string.\")")
(test-pretty-print "\
(description \"abcdefghijkl
mnopqrstuvwxyz.\")"
#:max-width 30)
(test-pretty-print "\
(description
\"abcdefghijkl
mnopqrstuvwxyz.\")"
#:max-width 12)
(test-pretty-print "\
(description
\"abcdefghijklmnopqrstuvwxyz\")"
#:max-width 33)
(test-pretty-print "\
(list ;margin comment
a b c)")
(test-pretty-print "\
(list
;; This is a line comment immediately following the list head.
#:test-flags #~(list \"-m\" \"not external and not samples\"))")
(test-pretty-print "\
(modify-phases %standard-phases
(replace 'build
;; Nicely indented in 'modify-phases' context.
(lambda _
#t)))")
(test-pretty-print "\
(modify-inputs inputs
;; Regular indentation for 'replace' here.
(replace \"gmp\" gmp))")
(test-pretty-print "\
#~(modify-phases phases
(add-after 'whatever 'something-else
(lambda _
;; This comment appears inside a gexp.
42)))")
(test-pretty-print "\
#~(list #$@(list coreutils ;yup
grep) ;margin comment
#+sed
;; Line comment.
#$grep)")
(test-pretty-print "\
(package
;; Here 'sha256', 'base32', and 'arguments' must be
;; immediately followed by a newline.
(source (origin
(method url-fetch)
(sha256
(base32
\"not a real base32 string\"))))
(arguments
'(#:phases %standard-phases
#:tests? #f)))")
;; '#:key value' is kept on the same line.
(test-pretty-print "\
(package
(name \"keyword-value-same-line\")
(arguments
(list #:phases #~(modify-phases %standard-phases
(add-before 'x 'y
(lambda* (#:key inputs #:allow-other-keys)
(foo bar baz))))
#:make-flags #~'(\"ANSWER=42\")
#:tests? #f)))")
(test-pretty-print "\
(let ((x 1)
(y 2)
(z (let* ((a 3)
(b 4))
(+ a b))))
(list x y z))")
(test-pretty-print "\
(begin
(chmod \"foo\" #o750)
(chmod port
(logand #o644
(lognot (umask))))
(logand #x7f xyz))")
(test-pretty-print "\
(substitute-keyword-arguments (package-arguments x)
((#:phases phases)
`(modify-phases ,phases
(add-before 'build 'do-things
(lambda _
#t))))
((#:configure-flags flags)
`(cons \"--without-any-problem\"
,flags)))")
(test-pretty-print "\
(vertical-space one:
two:
three:
end)")
(test-pretty-print "\
(vertical-space one
;; Comment after blank line.
two)")
(test-pretty-print "\
(begin
break
;; page break above
end)")
(test-pretty-print "\
(home-environment
(services
(list (service-type home-bash-service-type))))")
(test-pretty-print/sequence "\
;;; This is a top-level comment.
;; Above is a page break.
(this is an sexp
;; with a comment
!!)
;; The end.\n")
(test-pretty-print/sequence "
;;; Hello!
;;; Notice that there are three semicolons here.
(define-module (foo bar)
#:use-module (guix)
#:use-module (gnu))
;; And now, the OS.
(operating-system
(host-name \"komputilo\")
(locale \"eo_EO.UTF-8\")
(services
(cons (service mcron-service-type) %base-services)))\n"
#:format-comment canonicalize-comment)
(test-equal "pretty-print-with-comments, canonicalize-comment"
"\
(list abc
;; Not a margin comment.
;; Ditto.
;;
;; There's a blank line above.
def ;margin comment
ghi)"
(let ((sexp (call-with-input-string
"\
(list abc
;Not a margin comment.
;;; Ditto.
;;;;;
; There's a blank line above.
def ;; margin comment
ghi)"
read-with-comments)))
(call-with-output-string
(lambda (port)
(pretty-print-with-comments port sexp
#:format-comment
canonicalize-comment)))))
(test-equal "pretty-print-with-comments, canonicalize-vertical-space"
"\
(list abc
def
;; last one
ghi)"
(let ((sexp (call-with-input-string
"\
(list abc
def
;; last one
ghi)"
read-with-comments)))
(call-with-output-string
(lambda (port)
(pretty-print-with-comments port sexp
#:format-vertical-space
canonicalize-vertical-space)))))
(test-equal "pretty-print-with-comments, multi-line comment"
"\
(list abc
;; This comment spans
;; two lines.
def)"
(call-with-output-string
(lambda (port)
(pretty-print-with-comments port
`(list abc ,(comment "\
;; This comment spans\n
;; two lines.\n")
def)))))
(test-end)