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-rw-r--r--tests/challenge.scm114
1 files changed, 114 insertions, 0 deletions
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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 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 (guix 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)
+ (>>= (discrepancies (list out) (%test-substitute-urls))
+ (lift1 null? %store-monad))))))))
+
+(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)
+ (>>= (discrepancies (list out) (%test-substitute-urls))
+ (match-lambda
+ ((discrepancy)
+ (return
+ (and (string=? out (discrepancy-item discrepancy))
+ (bytevector=? hash
+ (discrepancy-local-sha256
+ discrepancy))
+ (match (discrepancy-narinfos discrepancy)
+ ((bad)
+ (bytevector=? wrong-hash
+ (narinfo-hash->sha256
+ (narinfo-hash bad))))))))))))))))
+
+(test-end)
+
+
+(exit (= (test-runner-fail-count (test-runner-current)) 0))
+
+;;; Local Variables:
+;;; eval: (put 'with-derivation-narinfo* 'scheme-indent-function 2)
+;;; End: