;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
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(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 </td></tr></table>
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<div class='path'>path: <a href='/guix/commit/?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>root</a>/<a href='/guix/commit/gnu?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>gnu</a>/<a href='/guix/commit/gnu/packages?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>packages</a>/<a href='/guix/commit/gnu/packages/conky.scm?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>conky.scm</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Marius Bakke &lt;marius@gnu.org&gt;</td><td class='right'>2020-06-06 20:57:50 +0200</td></tr>
<tr><th>committer</th><td>Marius Bakke &lt;marius@gnu.org&gt;</td><td class='right'>2020-06-06 21:14:17 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/guix/commit/gnu/packages/conky.scm?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6</a> (<a href='/guix/patch/gnu/packages/conky.scm?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/guix/tree/?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>3c0fbcab3167b48661adee3470bafbed39a6c29b</a> /<a href='/guix/tree/gnu/packages/conky.scm?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>gnu/packages/conky.scm</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/guix/commit/gnu/packages/conky.scm?id=9c0fd3d34cab839411ba47312eba6b659d5213ae'>9c0fd3d34cab839411ba47312eba6b659d5213ae</a> (<a href='/guix/diff/gnu/packages/conky.scm?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6&amp;id2=9c0fd3d34cab839411ba47312eba6b659d5213ae'>diff</a>)</td></tr><tr><th>download</th><td colspan='2' class='oid'><a href='/guix/snapshot/guix-b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6.tar.gz'>guix-b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6.tar.gz</a><br/><a href='/guix/snapshot/guix-b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6.zip'>guix-b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6.zip</a><br/></td></tr></table>
<div class='commit-subject'>gnu: Add kpeoplevcard.</div><div class='commit-msg'>* gnu/packages/kde-pim.scm (kpeoplevcard): New public variable.
</div><div class='diffstat-header'><a href='/guix/diff/?id=b69ca4d234db8fe2750e9b0d6b6139a5a89a4da6'>Diffstat</a> (limited to 'gnu/packages/conky.scm')</div><table summary='diffstat' class='diffstat'></table><div class='diffstat-summary'>0 files changed, 0 insertions, 0 deletions</div><table summary='diff' class='diff'><tr><td></td></tr></table></div> <!-- class=content -->
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-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 . args)
        (and (eq? proc 'foo)
             (string-match "invalid field" message)
             (equal? form '(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* & 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)