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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2017 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-challenge)
#:use-module (guix tests)
#:use-module (gcrypt hash)
#:use-module (guix store)
#:use-module (guix monads)
#:use-module (guix derivations)
#:use-module (guix gexp)
#:use-module (guix scripts challenge)
#:use-module (guix scripts substitute)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-64)
#:use-module (rnrs bytevectors)
#:use-module (ice-9 match))
(define %store
(open-connection-for-tests))
(define query-path-hash*
(store-lift query-path-hash))
(define-syntax-rule (test-assertm name exp)
(test-assert name
(run-with-store %store exp
#:guile-for-build (%guile-for-build))))
(define* (call-with-derivation-narinfo* drv thunk hash)
(lambda (store)
(with-derivation-narinfo drv (sha256 => hash)
(values (run-with-store store (thunk)) store))))
(define-syntax with-derivation-narinfo*
(syntax-rules (sha256 =>)
((_ drv (sha256 => hash) body ...)
(call-with-derivation-narinfo* drv
(lambda () body ...)
hash))))
(test-begin "challenge")
(test-assertm "no discrepancies"
(let ((text (random-text)))
(mlet* %store-monad ((drv (gexp->derivation "something"
#~(call-with-output-file
#$output
(lambda (port)
(display #$text port)))))
(out -> (derivation->output-path drv)))
(mbegin %store-monad
(built-derivations (list drv))
(mlet %store-monad ((hash (query-path-hash* out)))
(with-derivation-narinfo* drv (sha256 => hash)
(>>= (compare-contents (list out) (%test-substitute-urls))
(match-lambda
((report)
(return
(and (string=? out (comparison-report-item report))
(bytevector=?
(comparison-report-local-sha256 report)
hash)
(comparison-report-match? report))))))))))))
(test-assertm "one discrepancy"
(let ((text (random-text)))
(mlet* %store-monad ((drv (gexp->derivation "something"
#~(call-with-output-file
#$output
(lambda (port)
(display #$text port)))))
(out -> (derivation->output-path drv)))
(mbegin %store-monad
(built-derivations (list drv))
(mlet* %store-monad ((hash (query-path-hash* out))
(wrong-hash
-> (let* ((w (bytevector-copy hash))
(b (bytevector-u8-ref w 0)))
(bytevector-u8-set! w 0
(modulo (+ b 1) 128))
w)))
(with-derivation-narinfo* drv (sha256 => wrong-hash)
(>>= (compare-contents (list out) (%test-substitute-urls))
(match-lambda
((report)
(return
(and (string=? out (comparison-report-item (pk report)))
(eq? 'mismatch (comparison-report-result report))
(bytevector=? hash
(comparison-report-local-sha256
report))
(match (comparison-report-narinfos report)
((bad)
(bytevector=? wrong-hash
(narinfo-hash->sha256
(narinfo-hash bad))))))))))))))))
(test-assertm "inconclusive: no substitutes"
(mlet* %store-monad ((drv (gexp->derivation "foo" #~(mkdir #$output)))
(out -> (derivation->output-path drv))
(_ (built-derivations (list drv)))
(hash (query-path-hash* out)))
(>>= (compare-contents (list out) (%test-substitute-urls))
(match-lambda
((report)
(return
(and (string=? out (comparison-report-item report))
(comparison-report-inconclusive? report)
(null? (comparison-report-narinfos report))
(bytevector=? (comparison-report-local-sha256 report)
hash))))))))
(test-assertm "inconclusive: no local build"
(let ((text (random-text)))
(mlet* %store-monad ((drv (gexp->derivation "something"
#~(list #$output #$text)))
(out -> (derivation->output-path drv))
(hash -> (sha256 #vu8())))
(with-derivation-narinfo* drv (sha256 => hash)
(>>= (compare-contents (list out) (%test-substitute-urls))
(match-lambda
((report)
(return
(and (string=? out (comparison-report-item report))
(comparison-report-inconclusive? report)
(not (comparison-report-local-sha256 report))
(match (comparison-report-narinfos report)
((narinfo)
(bytevector=? (narinfo-hash->sha256
(narinfo-hash narinfo))
hash))))))))))))
(test-end)
;;; Local Variables:
;;; eval: (put 'with-derivation-narinfo* 'scheme-indent-function 2)
;;; End:
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