tests/cache.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2017, 2020 Ludovic Courtès <ludo@gnu.org>
   3 ;;; Copyright © 2022 Simon Tournier <zimon.toutoune@gmail.com>
   4 ;;;
   5 ;;; This file is part of GNU Guix.
   6 ;;;
   7 ;;; GNU Guix is free software; you can redistribute it and/or modify it
   8 ;;; under the terms of the GNU General Public License as published by
   9 ;;; the Free Software Foundation; either version 3 of the License, or (at
  10 ;;; your option) any later version.
  11 ;;;
  12 ;;; GNU Guix is distributed in the hope that it will be useful, but
  13 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 ;;; GNU General Public License for more details.
  16 ;;;
  17 ;;; You should have received a copy of the GNU General Public License
  18 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 (define-module (test-cache)
  21   #:use-module (guix cache)
  22   #:use-module (srfi srfi-1)
  23   #:use-module (srfi srfi-19)
  24   #:use-module (srfi srfi-64)
  25   #:use-module ((guix utils) #:select (call-with-temporary-directory))
  26   #:use-module (ice-9 match))
  27
  28 (test-begin "cache")
  29
  30 (test-equal "remove-expired-cache-entries"
  31   '("o" "l" "d")
  32   (let* ((removed '())
  33          (now     (time-second (current-time time-monotonic)))
  34          (ttl     100)
  35          (stamp   (match-lambda
  36                     ((or "n" "e" "w") (+ now 100))
  37                     ((or "o" "l" "d") (- now 100))))
  38          (delete  (lambda (entry)
  39                     (set! removed (cons entry removed)))))
  40     (remove-expired-cache-entries (reverse '("n" "e" "w"
  41                                              "o" "l" "d"))
  42                                   #:entry-expiration stamp
  43                                   #:delete-entry delete)
  44     removed))
  45
  46 (define-syntax-rule (test-cache-cleanup cache exp ...)
  47   (call-with-temporary-directory
  48    (lambda (cache)
  49      (let* ((deleted '())
  50             (delete! (lambda (entry)
  51                        (set! deleted (cons entry deleted)))))
  52        exp ...
  53        (maybe-remove-expired-cache-entries cache
  54                                            (const '("a" "b" "c"))
  55                                            #:entry-expiration (const 0)
  56                                            #:delete-entry delete!)
  57        (reverse deleted)))))
  58
  59 (test-equal "maybe-remove-expired-cache-entries, first cleanup"
  60   '("a" "b" "c")
  61   (test-cache-cleanup cache))
  62
  63 (test-equal "maybe-remove-expired-cache-entries, no cleanup needed"
  64   '()
  65   (test-cache-cleanup cache
  66     (call-with-output-file (string-append cache "/last-expiry-cleanup")
  67       (lambda (port)
  68         (display (+ (time-second (current-time time-monotonic)) 100)
  69                  port)))))
  70
  71 (test-equal "maybe-remove-expired-cache-entries, cleanup needed"
  72   '("a" "b" "c")
  73   (test-cache-cleanup cache
  74     (call-with-output-file (string-append cache "/last-expiry-cleanup")
  75       (lambda (port)
  76         (display 0 port)))))
  77
  78 (test-equal "maybe-remove-expired-cache-entries, empty cache"
  79   '("a" "b" "c")
  80   (test-cache-cleanup cache
  81     (call-with-output-file (string-append cache "/last-expiry-cleanup")
  82       (lambda (port)
  83         (display "" port)))))
  84
  85 (test-equal "maybe-remove-expired-cache-entries, corrupted cache"
  86   '("a" "b" "c")
  87   (test-cache-cleanup cache
  88     (call-with-output-file (string-append cache "/last-expiry-cleanup")
  89       (lambda (port)
  90         (display "1\"34657890" port)))))
  91
  92 (test-end "cache")
  93
  94 ;;; Local Variables:
  95 ;;; eval: (put 'test-cache-cleanup 'scheme-indent-function 1)
  96 ;;; End: