tests/records.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
   3 ;;;
   4 ;;; This file is part of GNU Guix.
   5 ;;;
   6 ;;; GNU Guix is free software; you can redistribute it and/or modify it
   7 ;;; under the terms of the GNU General Public License as published by
   8 ;;; the Free Software Foundation; either version 3 of the License, or (at
   9 ;;; your option) any later version.
  10 ;;;
  11 ;;; GNU Guix is distributed in the hope that it will be useful, but
  12 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ;;; GNU General Public License for more details.
  15 ;;;
  16 ;;; You should have received a copy of the GNU General Public License
  17 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 (define-module (test-records)
  20   #:use-module (srfi srfi-64)
  21   #:use-module (ice-9 match)
  22   #:use-module (ice-9 regex)
  23   #:use-module (guix records))
  24
  25 (define (test-module)
  26   ;; A module in which to evaluate things that are known to fail.
  27   (let ((module (make-fresh-user-module)))
  28     (module-use! module (resolve-interface '(guix records)))
  29     module))
  30
  31 \f
  32 (test-begin "records")
  33
  34 (test-assert "define-record-type*"
  35   (begin
  36     (define-record-type* <foo> foo make-foo
  37       foo?
  38       (bar foo-bar)
  39       (baz foo-baz (default (+ 40 2))))
  40     (and (match (foo (bar 1) (baz 2))
  41            (($ <foo> 1 2) #t))
  42          (match (foo (baz 2) (bar 1))
  43            (($ <foo> 1 2) #t))
  44          (match (foo (bar 1))
  45            (($ <foo> 1 42) #t)))))
  46
  47 (test-assert "define-record-type* with let* behavior"
  48   ;; Make sure field initializers can refer to each other as if they were in
  49   ;; a 'let*'.
  50   (begin
  51     (define-record-type* <bar> bar make-bar
  52       foo?
  53       (x bar-x)
  54       (y bar-y (default (+ 40 2)))
  55       (z bar-z))
  56     (and (match (bar (x 1) (y (+ x 1)) (z (* y 2)))
  57            (($ <bar> 1 2 4) #t))
  58          (match (bar (x 7) (z (* x 3)))
  59            (($ <bar> 7 42 21)))
  60          (match (bar (z 21) (x (/ z 3)))
  61            (($ <bar> 7 42 21) #t)))))
  62
  63 (test-assert "define-record-type* & inherit"
  64   (begin
  65     (define-record-type* <foo> foo make-foo
  66       foo?
  67       (bar foo-bar)
  68       (baz foo-baz (default (+ 40 2))))
  69     (let* ((a (foo (bar 1)))
  70            (b (foo (inherit a) (baz 2)))
  71            (c (foo (inherit b) (bar -2)))
  72            (d (foo (inherit c)))
  73            (e (foo (inherit (foo (bar 42))) (baz 77))))
  74      (and (match a (($ <foo> 1 42) #t))
  75           (match b (($ <foo> 1 2) #t))
  76           (match c (($ <foo> -2 2) #t))
  77           (equal? c d)
  78           (match e (($ <foo> 42 77) #t))))))
  79
  80 (test-assert "define-record-type* & inherit & let* behavior"
  81   (begin
  82     (define-record-type* <foo> foo make-foo
  83       foo?
  84       (bar foo-bar)
  85       (baz foo-baz (default (+ 40 2))))
  86     (let* ((a (foo (bar 77)))
  87            (b (foo (inherit a) (bar 1) (baz (+ bar 1))))
  88            (c (foo (inherit b) (baz 2) (bar (- baz 1)))))
  89      (and (match a (($ <foo> 77 42) #t))
  90           (match b (($ <foo> 1 2) #t))
  91           (equal? b c)))))
  92
  93 (test-assert "define-record-type* & thunked"
  94   (begin
  95     (define-record-type* <foo> foo make-foo
  96       foo?
  97       (bar foo-bar)
  98       (baz foo-baz (thunked)))
  99
 100     (let* ((calls 0)
 101            (x     (foo (bar 2)
 102                        (baz (begin (set! calls (1+ calls)) 3)))))
 103       (and (zero? calls)
 104            (equal? (foo-bar x) 2)
 105            (equal? (foo-baz x) 3) (= 1 calls)
 106            (equal? (foo-baz x) 3) (= 2 calls)))))
 107
 108 (test-assert "define-record-type* & thunked & default"
 109   (begin
 110     (define-record-type* <foo> foo make-foo
 111       foo?
 112       (bar foo-bar)
 113       (baz foo-baz (thunked) (default 42)))
 114
 115     (let ((mark (make-parameter #f)))
 116       (let ((x (foo (bar 2) (baz (mark))))
 117             (y (foo (bar 2))))
 118         (and (equal? (foo-bar x) 2)
 119              (parameterize ((mark (cons 'a 'b)))
 120                (eq? (foo-baz x) (mark)))
 121              (equal? (foo-bar y) 2)
 122              (equal? (foo-baz y) 42))))))
 123
 124 (test-assert "define-record-type* & thunked & inherited"
 125   (begin
 126     (define-record-type* <foo> foo make-foo
 127       foo?
 128       (bar foo-bar (thunked))
 129       (baz foo-baz (thunked) (default 42)))
 130
 131     (let ((mark (make-parameter #f)))
 132       (let* ((x (foo (bar 2) (baz (mark))))
 133              (y (foo (inherit x) (bar (mark)))))
 134         (and (equal? (foo-bar x) 2)
 135              (parameterize ((mark (cons 'a 'b)))
 136                (eq? (foo-baz x) (mark)))
 137              (parameterize ((mark (cons 'a 'b)))
 138                (eq? (foo-bar y) (mark)))
 139              (parameterize ((mark (cons 'a 'b)))
 140                (eq? (foo-baz y) (mark))))))))
 141
 142 (test-assert "define-record-type* & missing initializers"
 143   (catch 'syntax-error
 144     (lambda ()
 145       (eval '(begin
 146                (define-record-type* <foo> foo make-foo
 147                  foo?
 148                  (bar foo-bar (default 42))
 149                  (baz foo-baz))
 150
 151                (foo))
 152             (test-module))
 153       #f)
 154     (lambda (key proc message location form . args)
 155       (and (eq? proc 'foo)
 156            (string-match "missing .*initialize.*baz" message)
 157            (equal? form '(foo))))))
 158
 159 (test-assert "define-record-type* & extra initializers"
 160   (catch 'syntax-error
 161     (lambda ()
 162       (eval '(begin
 163                (define-record-type* <foo> foo make-foo
 164                  foo?
 165                  (bar foo-bar (default 42)))
 166
 167                (foo (baz 'what?)))
 168             (test-module))
 169       #f)
 170     (lambda (key proc message location form . args)
 171       (and (string-match "extra.*initializer.*baz" message)
 172            (eq? proc 'foo)))))
 173
 174 (test-assert "define-record-type* & inherit & extra initializers"
 175   (catch 'syntax-error
 176     (lambda ()
 177       (eval '(begin
 178                (define-record-type* <foo> foo make-foo
 179                  foo?
 180                  (bar foo-bar (default 42)))
 181
 182                (foo (inherit (foo)) (baz 'what?)))
 183             (test-module))
 184       #f)
 185     (lambda (key proc message location form . args)
 186       (and (string-match "extra.*initializer.*baz" message)
 187            (eq? proc 'foo)))))
 188
 189 (test-equal "recutils->alist"
 190   '((("Name" . "foo")
 191      ("Version" . "0.1")
 192      ("Synopsis" . "foo bar")
 193      ("Something_else" . "chbouib"))
 194     (("Name" . "bar")
 195      ("Version" . "1.5")))
 196   (let ((p (open-input-string "
 197 # Comment following an empty line, and
 198 # preceding a couple of empty lines, all of
 199 # which should be silently consumed.
 200
 201
 202 Name: foo
 203 Version: 0.1
 204 # Comment right in the middle,
 205 # spanning two lines.
 206 Synopsis: foo bar
 207 Something_else: chbouib
 208
 209 # Comment right before.
 210 Name: bar
 211 Version: 1.5
 212 # Comment at the end.")))
 213     (list (recutils->alist p)
 214           (recutils->alist p))))
 215
 216 (test-equal "recutils->alist with + lines"
 217   '(("Name" . "foo")
 218     ("Description" . "1st line,\n2nd line,\n 3rd line with extra space,\n4th line without space."))
 219   (recutils->alist (open-input-string "
 220 Name: foo
 221 Description: 1st line,
 222 + 2nd line,
 223 +  3rd line with extra space,
 224 +4th line without space.")))
 225
 226 (test-equal "alist->record" '((1 2) b c)
 227   (alist->record '(("a" . 1) ("b" . b) ("c" . c) ("a" . 2))
 228                  list
 229                  '("a" "b" "c")
 230                  '("a")))
 231
 232 (test-end)
 233
 234 \f
 235 (exit (= (test-runner-fail-count (test-runner-current)) 0))