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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021-2022 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-64))
(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 ...))))))
(test-begin "read-print")
(test-equal "read-with-comments: dot notation"
(cons 'a 'b)
(call-with-input-string "(a . b)"
read-with-comments))
(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 "\
(lambda (x y)
;; This is a procedure.
(let ((z (+ x y)))
(* z z)))")
(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 "\
(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 "\
(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 "\
(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 "\
(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-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-end)
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