tests/challenge.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2015, 2017 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-challenge)
  20   #:use-module (guix tests)
  21   #:use-module (gcrypt hash)
  22   #:use-module (guix store)
  23   #:use-module (guix monads)
  24   #:use-module (guix derivations)
  25   #:use-module (guix gexp)
  26   #:use-module (guix scripts challenge)
  27   #:use-module (guix scripts substitute)
  28   #:use-module (srfi srfi-1)
  29   #:use-module (srfi srfi-26)
  30   #:use-module (srfi srfi-64)
  31   #:use-module (rnrs bytevectors)
  32   #:use-module (ice-9 match))
  33
  34 (define query-path-hash*
  35   (store-lift query-path-hash))
  36
  37 (define* (call-with-derivation-narinfo* drv thunk hash)
  38   (lambda (store)
  39     (with-derivation-narinfo drv (sha256 => hash)
  40       (values (run-with-store store (thunk)) store))))
  41
  42 (define-syntax with-derivation-narinfo*
  43   (syntax-rules (sha256 =>)
  44     ((_ drv (sha256 => hash) body ...)
  45      (call-with-derivation-narinfo* drv
  46        (lambda () body ...)
  47        hash))))
  48
  49 \f
  50 (test-begin "challenge")
  51
  52 (test-assertm "no discrepancies"
  53   (let ((text (random-text)))
  54     (mlet* %store-monad ((drv (gexp->derivation "something"
  55                                                 #~(call-with-output-file
  56                                                       #$output
  57                                                     (lambda (port)
  58                                                       (display #$text port)))))
  59                          (out -> (derivation->output-path drv)))
  60       (mbegin %store-monad
  61         (built-derivations (list drv))
  62         (mlet %store-monad ((hash (query-path-hash* out)))
  63           (with-derivation-narinfo* drv (sha256 => hash)
  64             (>>= (compare-contents (list out) (%test-substitute-urls))
  65                  (match-lambda
  66                    ((report)
  67                     (return
  68                      (and (string=? out (comparison-report-item report))
  69                           (bytevector=?
  70                            (comparison-report-local-sha256 report)
  71                            hash)
  72                           (comparison-report-match? report))))))))))))
  73
  74 (test-assertm "one discrepancy"
  75   (let ((text (random-text)))
  76     (mlet* %store-monad ((drv (gexp->derivation "something"
  77                                                 #~(call-with-output-file
  78                                                       #$output
  79                                                     (lambda (port)
  80                                                       (display #$text port)))))
  81                          (out -> (derivation->output-path drv)))
  82       (mbegin %store-monad
  83         (built-derivations (list drv))
  84         (mlet* %store-monad ((hash (query-path-hash* out))
  85                              (wrong-hash
  86                               -> (let* ((w (bytevector-copy hash))
  87                                         (b (bytevector-u8-ref w 0)))
  88                                    (bytevector-u8-set! w 0
  89                                                        (modulo (+ b 1) 128))
  90                                    w)))
  91           (with-derivation-narinfo* drv (sha256 => wrong-hash)
  92             (>>= (compare-contents (list out) (%test-substitute-urls))
  93                  (match-lambda
  94                    ((report)
  95                     (return
  96                      (and (string=? out (comparison-report-item (pk report)))
  97                           (eq? 'mismatch (comparison-report-result report))
  98                           (bytevector=? hash
  99                                         (comparison-report-local-sha256
 100                                          report))
 101                           (match (comparison-report-narinfos report)
 102                             ((bad)
 103                              (bytevector=? wrong-hash
 104                                            (narinfo-hash->sha256
 105                                             (narinfo-hash bad))))))))))))))))
 106
 107 (test-assertm "inconclusive: no substitutes"
 108   (mlet* %store-monad ((drv  (gexp->derivation "foo" #~(mkdir #$output)))
 109                        (out -> (derivation->output-path drv))
 110                        (_    (built-derivations (list drv)))
 111                        (hash (query-path-hash* out)))
 112     (>>= (compare-contents (list out) (%test-substitute-urls))
 113          (match-lambda
 114            ((report)
 115             (return
 116              (and (string=? out (comparison-report-item report))
 117                   (comparison-report-inconclusive? report)
 118                   (null? (comparison-report-narinfos report))
 119                   (bytevector=? (comparison-report-local-sha256 report)
 120                                 hash))))))))
 121
 122 (test-assertm "inconclusive: no local build"
 123   (let ((text (random-text)))
 124     (mlet* %store-monad ((drv (gexp->derivation "something"
 125                                                 #~(list #$output #$text)))
 126                          (out -> (derivation->output-path drv))
 127                          (hash -> (sha256 #vu8())))
 128       (with-derivation-narinfo* drv (sha256 => hash)
 129         (>>= (compare-contents (list out) (%test-substitute-urls))
 130              (match-lambda
 131                ((report)
 132                 (return
 133                  (and (string=? out (comparison-report-item report))
 134                       (comparison-report-inconclusive? report)
 135                       (not (comparison-report-local-sha256 report))
 136                       (match (comparison-report-narinfos report)
 137                         ((narinfo)
 138                          (bytevector=? (narinfo-hash->sha256
 139                                         (narinfo-hash narinfo))
 140                                        hash))))))))))))
 141
 142
 143 (test-end)
 144
 145 ;;; Local Variables:
 146 ;;; eval: (put 'with-derivation-narinfo* 'scheme-indent-function 2)
 147 ;;; End: