112 lines
4.4 KiB
Scheme
112 lines
4.4 KiB
Scheme
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (test-challenge)
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#:use-module (guix tests)
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#:use-module (guix hash)
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#:use-module (guix store)
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#:use-module (guix monads)
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#:use-module (guix derivations)
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#:use-module (guix gexp)
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#:use-module (guix scripts challenge)
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#:use-module (guix scripts substitute)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-64)
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#:use-module (rnrs bytevectors)
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#:use-module (ice-9 match))
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(define %store
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(open-connection-for-tests))
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(define query-path-hash*
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(store-lift query-path-hash))
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(define-syntax-rule (test-assertm name exp)
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(test-assert name
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(run-with-store %store exp
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#:guile-for-build (%guile-for-build))))
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(define* (call-with-derivation-narinfo* drv thunk hash)
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(lambda (store)
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(with-derivation-narinfo drv (sha256 => hash)
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(values (run-with-store store (thunk)) store))))
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(define-syntax with-derivation-narinfo*
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(syntax-rules (sha256 =>)
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((_ drv (sha256 => hash) body ...)
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(call-with-derivation-narinfo* drv
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(lambda () body ...)
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hash))))
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(test-begin "challenge")
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(test-assertm "no discrepancies"
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(let ((text (random-text)))
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(mlet* %store-monad ((drv (gexp->derivation "something"
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#~(call-with-output-file
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#$output
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(lambda (port)
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(display #$text port)))))
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(out -> (derivation->output-path drv)))
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(mbegin %store-monad
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(built-derivations (list drv))
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(mlet %store-monad ((hash (query-path-hash* out)))
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(with-derivation-narinfo* drv (sha256 => hash)
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(>>= (discrepancies (list out) (%test-substitute-urls))
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(lift1 null? %store-monad))))))))
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(test-assertm "one discrepancy"
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(let ((text (random-text)))
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(mlet* %store-monad ((drv (gexp->derivation "something"
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#~(call-with-output-file
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#$output
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(lambda (port)
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(display #$text port)))))
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(out -> (derivation->output-path drv)))
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(mbegin %store-monad
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(built-derivations (list drv))
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(mlet* %store-monad ((hash (query-path-hash* out))
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(wrong-hash
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-> (let* ((w (bytevector-copy hash))
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(b (bytevector-u8-ref w 0)))
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(bytevector-u8-set! w 0
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(modulo (+ b 1) 128))
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w)))
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(with-derivation-narinfo* drv (sha256 => wrong-hash)
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(>>= (discrepancies (list out) (%test-substitute-urls))
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(match-lambda
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((discrepancy)
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(return
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(and (string=? out (discrepancy-item discrepancy))
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(bytevector=? hash
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(discrepancy-local-sha256
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discrepancy))
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(match (discrepancy-narinfos discrepancy)
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((bad)
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(bytevector=? wrong-hash
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(narinfo-hash->sha256
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(narinfo-hash bad))))))))))))))))
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(test-end)
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;;; Local Variables:
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;;; eval: (put 'with-derivation-narinfo* 'scheme-indent-function 2)
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;;; End:
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