tests/records.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2012, 2013, 2014, 2015 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* & delayed"
 143   (begin
 144     (define-record-type* <foo> foo make-foo
 145       foo?
 146       (bar foo-bar (delayed)))
 147
 148     (let* ((calls 0)
 149            (x     (foo (bar (begin (set! calls (1+ calls)) 3)))))
 150       (and (zero? calls)
 151            (equal? (foo-bar x) 3) (= 1 calls)
 152            (equal? (foo-bar x) 3) (= 1 calls)
 153            (equal? (foo-bar x) 3) (= 1 calls)))))
 154
 155 (test-assert "define-record-type* & delayed & default"
 156   (let ((mark #f))
 157     (define-record-type* <foo> foo make-foo
 158       foo?
 159       (bar foo-bar (delayed) (default mark)))
 160
 161     (let ((x (foo)))
 162       (set! mark 42)
 163       (and (equal? (foo-bar x) 42)
 164            (begin
 165              (set! mark 7)
 166              (equal? (foo-bar x) 42))))))
 167
 168 (test-assert "define-record-type* & delayed & inherited"
 169   (begin
 170     (define-record-type* <foo> foo make-foo
 171       foo?
 172       (bar foo-bar (delayed))
 173       (baz foo-baz (delayed)))
 174
 175     (let* ((m 1)
 176            (n #f)
 177            (x (foo (bar m) (baz n)))
 178            (y (foo (inherit x) (baz 'b))))
 179       (set! n 'a)
 180       (and (equal? (foo-bar x) 1)
 181            (eq? (foo-baz x) 'a)
 182            (begin
 183              (set! m 777)
 184              (equal? (foo-bar y) 1))              ;promise was already forced
 185            (eq? (foo-baz y) 'b)))))
 186
 187 (test-assert "define-record-type* & missing initializers"
 188   (catch 'syntax-error
 189     (lambda ()
 190       (eval '(begin
 191                (define-record-type* <foo> foo make-foo
 192                  foo?
 193                  (bar foo-bar (default 42))
 194                  (baz foo-baz))
 195
 196                (foo))
 197             (test-module))
 198       #f)
 199     (lambda (key proc message location form . args)
 200       (and (eq? proc 'foo)
 201            (string-match "missing .*initialize.*baz" message)
 202            (equal? form '(foo))))))
 203
 204 (test-assert "define-record-type* & extra initializers"
 205   (catch 'syntax-error
 206     (lambda ()
 207       (eval '(begin
 208                (define-record-type* <foo> foo make-foo
 209                  foo?
 210                  (bar foo-bar (default 42)))
 211
 212                (foo (baz 'what?)))
 213             (test-module))
 214       #f)
 215     (lambda (key proc message location form . args)
 216       (and (string-match "extra.*initializer.*baz" message)
 217            (eq? proc 'foo)))))
 218
 219 (test-assert "define-record-type* & inherit & extra initializers"
 220   (catch 'syntax-error
 221     (lambda ()
 222       (eval '(begin
 223                (define-record-type* <foo> foo make-foo
 224                  foo?
 225                  (bar foo-bar (default 42)))
 226
 227                (foo (inherit (foo)) (baz 'what?)))
 228             (test-module))
 229       #f)
 230     (lambda (key proc message location form . args)
 231       (and (string-match "extra.*initializer.*baz" message)
 232            (eq? proc 'foo)))))
 233
 234 (test-equal "recutils->alist"
 235   '((("Name" . "foo")
 236      ("Version" . "0.1")
 237      ("Synopsis" . "foo bar")
 238      ("Something_else" . "chbouib"))
 239     (("Name" . "bar")
 240      ("Version" . "1.5")))
 241   (let ((p (open-input-string "
 242 # Comment following an empty line, and
 243 # preceding a couple of empty lines, all of
 244 # which should be silently consumed.
 245
 246
 247 Name: foo
 248 Version: 0.1
 249 # Comment right in the middle,
 250 # spanning two lines.
 251 Synopsis: foo bar
 252 Something_else: chbouib
 253
 254 # Comment right before.
 255 Name: bar
 256 Version: 1.5
 257 # Comment at the end.")))
 258     (list (recutils->alist p)
 259           (recutils->alist p))))
 260
 261 (test-equal "recutils->alist with + lines"
 262   '(("Name" . "foo")
 263     ("Description" . "1st line,\n2nd line,\n 3rd line with extra space,\n4th line without space."))
 264   (recutils->alist (open-input-string "
 265 Name: foo
 266 Description: 1st line,
 267 + 2nd line,
 268 +  3rd line with extra space,
 269 +4th line without space.")))
 270
 271 (test-equal "alist->record" '((1 2) b c)
 272   (alist->record '(("a" . 1) ("b" . b) ("c" . c) ("a" . 2))
 273                  list
 274                  '("a" "b" "c")
 275                  '("a")))
 276
 277 (test-end)
 278
 279 \f
 280 (exit (= (test-runner-fail-count (test-runner-current)) 0))