summaryrefslogtreecommitdiff
path: root/tests/records.scm
blob: 2c55a61720c9ddcb1701a181201835e55be88bb1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2020 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 (test-records)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-64)
  #:use-module (ice-9 match)
  #:use-module (ice-9 regex)
  #:use-module (guix records))

(define (test-module)
  ;; A module in which to evaluate things that are known to fail.
  (let ((module (make-fresh-user-module)))
    (module-use! module (resolve-interface '(guix records)))
    module))


(test-begin "records")

(test-assert "define-record-type*"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (default (+ 40 2))))
    (and (match (foo (bar 1) (baz 2))
           (($ <foo> 1 2) #t))
         (match (foo (baz 2) (bar 1))
           (($ <foo> 1 2) #t))
         (match (foo (bar 1))
           (($ <foo> 1 42) #t)))))

(test-assert "define-record-type* with let* behavior"
  ;; Make sure field initializers can refer to each other as if they were in
  ;; a 'let*'.
  (begin
    (define-record-type* <bar> bar make-bar
      foo?
      (x bar-x)
      (y bar-y (default (+ 40 2)))
      (z bar-z))
    (and (match (bar (x 1) (y (+ x 1)) (z (* y 2)))
           (($ <bar> 1 2 4) #t))
         (match (bar (x 7) (z (* x 3)))
           (($ <bar> 7 42 21) #t))
         (match (bar (z 21) (x (/ z 3)))
           (($ <bar> 7 42 21) #t)))))

(test-assert "define-record-type* & inherit"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (default (+ 40 2))))
    (let* ((a (foo (bar 1)))
           (b (foo (inherit a) (baz 2)))
           (c (foo (inherit b) (bar -2)))
           (d (foo (inherit c)))
           (e (foo (inherit (foo (bar 42))) (baz 77))))
     (and (match a (($ <foo> 1 42) #t))
          (match b (($ <foo> 1 2) #t))
          (match c (($ <foo> -2 2) #t))
          (equal? c d)
          (match e (($ <foo> 42 77) #t))))))

(test-assert "define-record-type* & inherit & let* behavior"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (default (+ 40 2))))
    (let* ((a (foo (bar 77)))
           (b (foo (inherit a) (bar 1) (baz (+ bar 1))))
           (c (foo (inherit b) (baz 2) (bar (- baz 1)))))
     (and (match a (($ <foo> 77 42) #t))
          (match b (($ <foo> 1 2) #t))
          (equal? b c)))))

(test-assert "define-record-type* & inherit & innate"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar (innate) (default 42)))
    (let* ((a (foo (bar 1)))
           (b (foo (inherit a)))
           (c (foo (inherit a) (bar 3)))
           (d (foo)))
      (and (match a (($ <foo> 1) #t))
           (match b (($ <foo> 42) #t))
           (match c (($ <foo> 3) #t))
           (match d (($ <foo> 42) #t))))))

(test-assert "define-record-type* & thunked"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (thunked)))

    (let* ((calls 0)
           (x     (foo (bar 2)
                       (baz (begin (set! calls (1+ calls)) 3)))))
      (and (zero? calls)
           (equal? (foo-bar x) 2)
           (equal? (foo-baz x) 3) (= 1 calls)
           (equal? (foo-baz x) 3) (= 2 calls)))))

(test-assert "define-record-type* & thunked & default"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (thunked) (default 42)))

    (let ((mark (make-parameter #f)))
      (let ((x (foo (bar 2) (baz (mark))))
            (y (foo (bar 2))))
        (and (equal? (foo-bar x) 2)
             (parameterize ((mark (cons 'a 'b)))
               (eq? (foo-baz x) (mark)))
             (equal? (foo-bar y) 2)
             (equal? (foo-baz y) 42))))))

(test-assert "define-record-type* & thunked & inherited"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar (thunked))
      (baz foo-baz (thunked) (default 42)))

    (let ((mark (make-parameter #f)))
      (let* ((x (foo (bar 2) (baz (mark))))
             (y (foo (inherit x) (bar (mark)))))
        (and (equal? (foo-bar x) 2)
             (parameterize ((mark (cons 'a 'b)))
               (eq? (foo-baz x) (mark)))
             (parameterize ((mark (cons 'a 'b)))
               (eq? (foo-bar y) (mark)))
             (parameterize ((mark (cons 'a 'b)))
               (eq? (foo-baz y) (mark))))))))

(test-assert "define-record-type* & thunked & innate"
  (let ((mark (make-parameter #f)))
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar (thunked) (innate) (default (mark)))
      (baz foo-baz (default #f)))

    (let* ((x (foo (bar 42)))
           (y (foo (inherit x) (baz 'unused))))
      (and (procedure? (struct-ref x 0))
           (equal? (foo-bar x) 42)
           (parameterize ((mark (cons 'a 'b)))
             (eq? (foo-bar y) (mark)))
           (parameterize ((mark (cons 'a 'b)))
             (eq? (foo-bar y) (mark)))))))

(test-assert "define-record-type* & thunked & this-record"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (thunked)))

    (let ((x (foo (bar 40)
                  (baz (+ (foo-bar this-record) 2)))))
      (and (= 40 (foo-bar x))
           (= 42 (foo-baz x))))))

(test-assert "define-record-type* & thunked & default & this-record"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (thunked)
           (default (+ (foo-bar this-record) 2))))

    (let ((x (foo (bar 40))))
      (and (= 40 (foo-bar x))
           (= 42 (foo-baz x))))))

(test-assert "define-record-type* & thunked & inherit & this-record"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar)
      (baz foo-baz (thunked)
           (default (+ (foo-bar this-record) 2))))

    (let* ((x (foo (bar 40)))
           (y (foo (inherit x) (bar -2)))
           (z (foo (inherit x) (baz -2))))
      (and (= -2 (foo-bar y))
           (=  0 (foo-baz y))
           (= 40 (foo-bar z))
           (= -2 (foo-baz z))))))

(test-assert "define-record-type* & thunked & inherit & custom this"
  (let ()
    (define-record-type* <foo> foo make-foo
      foo? this-foo
      (thing foo-thing (thunked)))
    (define-record-type* <bar> bar make-bar
      bar? this-bar
      (baz bar-baz (thunked)))

    ;; Nest records and test the two self references.
    (let* ((x (foo (thing (bar (baz (list this-bar this-foo))))))
           (y (foo-thing x)))
      (match (bar-baz y)
        ((first second)
         (and (eq? second x)
              (bar? first)
              (eq? first y)))))))

(test-assert "define-record-type* & delayed"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar (delayed)))

    (let* ((calls 0)
           (x     (foo (bar (begin (set! calls (1+ calls)) 3)))))
      (and (zero? calls)
           (equal? (foo-bar x) 3) (= 1 calls)
           (equal? (foo-bar x) 3) (= 1 calls)
           (equal? (foo-bar x) 3) (= 1 calls)))))

(test-assert "define-record-type* & delayed & default"
  (let ((mark #f))
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar (delayed) (default mark)))

    (let ((x (foo)))
      (set! mark 42)
      (and (equal? (foo-bar x) 42)
           (begin
             (set! mark 7)
             (equal? (foo-bar x) 42))))))

(test-assert "define-record-type* & delayed & inherited"
  (begin
    (define-record-type* <foo> foo make-foo
      foo?
      (bar foo-bar (delayed))
      (baz foo-baz (delayed)))

    (let* ((m 1)
           (n #f)
           (x (foo (bar m) (baz n)))
           (y (foo (inherit x) (baz 'b))))
      (set! n 'a)
      (and (equal? (foo-bar x) 1)
           (eq? (foo-baz x) 'a)
           (begin
             (set! m 777)
             (equal? (foo-bar y) 1))              ;promise was already forced
           (eq? (foo-baz y) 'b)))))

(test-assert "define-record-type* & wrong field specifier"
  (let ((exp '(begin
                (define-record-type* <foo> foo make-foo
                  foo?
                  (bar foo-bar (default 42))
                  (baz foo-baz))

                (foo (baz 1 2 3 4 5))))           ;syntax error
        (loc         (current-source-location)))  ;keep this alignment!
    (catch 'syntax-error
      (lambda ()
        (eval exp (test-module))
        #f)
      (lambda (key proc message location form subform . _)
        (and (eq? proc 'foo)
             (string-match "invalid field" message)
             (equal? subform '(baz 1 2 3 4 5))
             (equal? form '(foo (baz 1 2 3 4 5)))

             ;; Make sure the location is that of the field specifier.
             ;; See <http://bugs.gnu.org/23969>.
             (lset= equal?
                    (pk 'expected-loc
                        `((line . ,(- (assq-ref loc 'line) 1))
                          ,@(alist-delete 'line loc)))
                    (pk 'actual-loc location)))))))

(test-assert "define-record-type* & wrong field specifier, identifier"
  (let ((exp '(begin
                (define-record-type* <foo> foo make-foo
                  foo?
                  (bar foo-bar (default 42))
                  (baz foo-baz))

                (foo
                 baz)))                           ;syntax error
        (loc    (current-source-location)))       ;keep this alignment!
    (catch 'syntax-error
      (lambda ()
        (eval exp (test-module))
        #f)
      (lambda (key proc message location form subform . _)
        (and (eq? proc 'foo)
             (string-match "invalid field" message)
             (equal? subform 'baz)
             (equal? form '(foo baz))

             ;; Here the location is that of the parent form.
             (lset= equal?
                    (pk 'expected-loc
                        `((line . ,(- (assq-ref loc 'line) 2))
                          ,@(alist-delete 'line loc)))
                    (pk 'actual-loc location)))))))

(test-assert "define-record-type* & missing initializers"
  (catch 'syntax-error
    (lambda ()
      (eval '(begin
               (define-record-type* <foo> foo make-foo
                 foo?
                 (bar foo-bar (default 42))
                 (baz foo-baz))

               (foo))
            (test-module))
      #f)
    (lambda (key proc message location form . args)
      (and (eq? proc 'foo)
           (string-match "missing .*initialize.*baz" message)
           (equal? form '(foo))))))

(test-assert "define-record-type* & extra initializers"
  (catch 'syntax-error
    (lambda ()
      (eval '(begin
               (define-record-type* <foo> foo make-foo
                 foo?
                 (bar foo-bar (default 42)))

               (foo (baz 'what?)))
            (test-module))
      #f)
    (lambda (key proc message location form . args)
      (and (string-match "extra.*initializer.*baz" message)
           (eq? proc 'foo)))))

(test-assert "define-record-type* & inherit & extra initializers"
  (catch 'syntax-error
    (lambda ()
      (eval '(begin
               (define-record-type* <foo> foo make-foo
                 foo?
                 (bar foo-bar (default 42)))

               (foo (inherit (foo)) (baz 'what?)))
            (test-module))
      #f)
    (lambda (key proc message location form . args)
      (and (string-match "extra.*initializer.*baz" message)
           (eq? proc 'foo)))))

(test-assert "define-record-type* & duplicate initializers"
  (let ((exp '(begin
                (define-record-type* <foo> foo make-foo
                  foo?
                  (bar foo-bar (default 42)))

                (foo (bar 1)
                     (bar 2))))
        (loc         (current-source-location)))  ;keep this alignment!
    (catch 'syntax-error
      (lambda ()
        (eval exp (test-module))
        #f)
      (lambda (key proc message location form . args)
        (and (string-match "duplicate.*initializer" message)
             (eq? proc 'foo)

             ;; Make sure the location is that of the field specifier.
             (lset= equal?
                    (pk 'expected-loc
                        `((line . ,(- (assq-ref loc 'line) 1))
                          ,@(alist-delete 'line loc)))
                    (pk 'actual-loc location)))))))

(test-assert "ABI checks"
  (let ((module (test-module)))
    (eval '(begin
             (define-record-type* <foo> foo make-foo
               foo?
               (bar foo-bar (default 42)))

             (define (make-me-a-record) (foo)))
          module)
    (unless (eval '(foo? (make-me-a-record)) module)
      (error "what?" (eval '(make-me-a-record) module)))

    ;; Redefine <foo> with an additional field.
    (eval '(define-record-type* <foo> foo make-foo
             foo?
             (baz foo-baz)
             (bar foo-bar (default 42)))
          module)

    ;; Now 'make-me-a-record' is out of sync because it does an
    ;; 'allocate-struct' that corresponds to the previous definition of <foo>.
    (catch 'record-abi-mismatch-error
      (lambda ()
        (eval '(foo? (make-me-a-record)) module)
        #f)
      (match-lambda*
        ((key 'abi-check (? string? message) (rtd) . _)
         (eq? rtd (eval '<foo> module)))))))

(test-equal "recutils->alist"
  '((("Name" . "foo")
     ("Version" . "0.1")
     ("Synopsis" . "foo bar")
     ("Something_else" . "chbouib"))
    (("Name" . "bar")
     ("Version" . "1.5")))
  (let ((p (open-input-string "
# Comment following an empty line, and
# preceding a couple of empty lines, all of
# which should be silently consumed.


Name: foo
Version: 0.1
# Comment right in the middle,
# spanning two lines.
Synopsis: foo bar
Something_else: chbouib

# Comment right before.
Name: bar
Version: 1.5
# Comment at the end.")))
    (list (recutils->alist p)
          (recutils->alist p))))

(test-equal "recutils->alist with + lines"
  '(("Name" . "foo")
    ("Description" . "1st line,\n2nd line,\n 3rd line with extra space,\n4th line without space."))
  (recutils->alist (open-input-string "
Name: foo
Description: 1st line,
+ 2nd line,
+  3rd line with extra space,
+4th line without space.")))

(test-equal "alist->record" '((1 2) b c)
  (alist->record '(("a" . 1) ("b" . b) ("c" . c) ("a" . 2))
                 list
                 '("a" "b" "c")
                 '("a")))

(test-end)