guix/tests/utils.scm

271 lines
9.3 KiB
Scheme
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014 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-utils)
#:use-module ((guix config) #:select (%gzip))
#:use-module (guix utils)
#:use-module ((guix store) #:select (%store-prefix store-path-package-name))
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-64)
#:use-module (rnrs bytevectors)
#:use-module (rnrs io ports)
#:use-module (ice-9 match))
(define temp-file
(string-append "t-utils-" (number->string (getpid))))
(test-begin "utils")
(test-assert "bytevector->base16-string->bytevector"
(every (lambda (bv)
(equal? (base16-string->bytevector
(bytevector->base16-string bv))
bv))
(map string->utf8 '("" "f" "fo" "foo" "foob" "fooba" "foobar"))))
(test-assert "gnu-triplet->nix-system"
(let ((samples '(("i586-gnu0.3" "i686-gnu")
("x86_64-unknown-linux-gnu" "x86_64-linux")
("i386-pc-linux-gnu" "i686-linux")
("x86_64-unknown-freebsd8.2" "x86_64-freebsd")
("x86_64-apple-darwin10.8.0" "x86_64-darwin")
("i686-pc-cygwin" "i686-cygwin"))))
(let-values (((gnu nix) (unzip2 samples)))
(every (lambda (gnu nix)
(equal? nix (gnu-triplet->nix-system gnu)))
gnu nix))))
(test-assert "package-name->name+version"
(every (match-lambda
((name version)
(let*-values (((full-name)
(if version
(string-append name "-" version)
name))
((name* version*)
(package-name->name+version full-name)))
(and (equal? name* name)
(equal? version* version)))))
'(("foo" "0.9.1b")
("foo-bar" "1.0")
("foo-bar2" #f)
("guile" "2.0.6.65-134c9") ; as produced by `git-version-gen'
("nixpkgs" "1.0pre22125_a28fe19")
("gtk2" "2.38.0"))))
(test-assert "guile-version>? 1.8"
(guile-version>? "1.8"))
(test-assert "guile-version>? 10.5"
(not (guile-version>? "10.5")))
(test-equal "string-tokenize*"
'(("foo")
("foo" "bar" "baz")
("foo" "bar" "")
("foo" "bar" "baz"))
(list (string-tokenize* "foo" ":")
(string-tokenize* "foo;bar;baz" ";")
(string-tokenize* "foo!bar!" "!")
(string-tokenize* "foo+-+bar+-+baz" "+-+")))
(test-equal "string-replace-substring"
'("foo BAR! baz"
"/gnu/store/chbouib"
"")
(list (string-replace-substring "foo bar baz" "bar" "BAR!")
(string-replace-substring "/nix/store/chbouib" "/nix/" "/gnu/")
(string-replace-substring "" "foo" "bar")))
(test-equal "fold2, 1 list"
(list (reverse (iota 5))
(map - (reverse (iota 5))))
(call-with-values
(lambda ()
(fold2 (lambda (i r1 r2)
(values (cons i r1)
(cons (- i) r2)))
'() '()
(iota 5)))
list))
(test-equal "fold2, 2 lists"
(list (reverse '((a . 0) (b . 1) (c . 2) (d . 3)))
(reverse '((a . 0) (b . -1) (c . -2) (d . -3))))
(call-with-values
(lambda ()
(fold2 (lambda (k v r1 r2)
(values (alist-cons k v r1)
(alist-cons k (- v) r2)))
'() '()
'(a b c d)
'(0 1 2 3)))
list))
(test-assert "filtered-port, file"
(let* ((file (search-path %load-path "guix.scm"))
(input (open-file file "r0b")))
(let*-values (((compressed pids1)
(filtered-port `(,%gzip "-c" "--fast") input))
((decompressed pids2)
(filtered-port `(,%gzip "-d") compressed)))
(and (every (compose zero? cdr waitpid)
(append pids1 pids2))
(equal? (get-bytevector-all decompressed)
(call-with-input-file file get-bytevector-all))))))
(test-assert "filtered-port, non-file"
(let ((data (call-with-input-file (search-path %load-path "guix.scm")
get-bytevector-all)))
(let*-values (((compressed pids1)
(filtered-port `(,%gzip "-c" "--fast")
(open-bytevector-input-port data)))
((decompressed pids2)
(filtered-port `(,%gzip "-d") compressed)))
(and (pk (every (compose zero? cdr waitpid)
(append pids1 pids2)))
(equal? (get-bytevector-all decompressed) data)))))
(test-assert "filtered-port, does not exist"
(let* ((file (search-path %load-path "guix.scm"))
(input (open-file file "r0b")))
(let-values (((port pids)
(filtered-port '("/does/not/exist") input)))
(any (compose (negate zero?) cdr waitpid)
pids))))
(test-assert "compressed-port, decompressed-port, non-file"
(let ((data (call-with-input-file (search-path %load-path "guix.scm")
get-bytevector-all)))
(let*-values (((compressed pids1)
(compressed-port 'xz (open-bytevector-input-port data)))
((decompressed pids2)
(decompressed-port 'xz compressed)))
(and (every (compose zero? cdr waitpid)
(append pids1 pids2))
(equal? (get-bytevector-all decompressed) data)))))
(false-if-exception (delete-file temp-file))
(test-assert "compressed-output-port + decompressed-port"
(let* ((file (search-path %load-path "guix/derivations.scm"))
(data (call-with-input-file file get-bytevector-all)))
(call-with-compressed-output-port 'xz (open-file temp-file "w0b")
(lambda (compressed)
(put-bytevector compressed data)))
(bytevector=? data
(call-with-decompressed-port 'xz (open-file temp-file "r0b")
get-bytevector-all))))
(false-if-exception (delete-file temp-file))
(test-equal "fcntl-flock wait"
42 ; the child's exit status
(let ((file (open-file temp-file "w0")))
;; Acquire an exclusive lock.
(fcntl-flock file 'write-lock)
(match (primitive-fork)
(0
(dynamic-wind
(const #t)
(lambda ()
;; Reopen FILE read-only so we can have a read lock.
(let ((file (open-file temp-file "r")))
;; Wait until we can acquire the lock.
(fcntl-flock file 'read-lock)
(primitive-exit (read file)))
(primitive-exit 1))
(lambda ()
(primitive-exit 2))))
(pid
;; Write garbage and wait.
(display "hello, world!" file)
(force-output file)
(sleep 1)
;; Write the real answer.
(seek file 0 SEEK_SET)
(truncate-file file 0)
(write 42 file)
(force-output file)
;; Unlock, which should let the child continue.
(fcntl-flock file 'unlock)
(match (waitpid pid)
((_ . status)
(let ((result (status:exit-val status)))
(close-port file)
result)))))))
(test-equal "fcntl-flock non-blocking"
EAGAIN ; the child's exit status
(match (pipe)
((input . output)
(match (primitive-fork)
(0
(dynamic-wind
(const #t)
(lambda ()
(close-port output)
;; Wait for the green light.
(read-char input)
;; Open FILE read-only so we can have a read lock.
(let ((file (open-file temp-file "w")))
(catch 'flock-error
(lambda ()
;; This attempt should throw EAGAIN.
(fcntl-flock file 'write-lock #:wait? #f))
(lambda (key errno)
(primitive-exit errno))))
(primitive-exit -1))
(lambda ()
(primitive-exit -2))))
(pid
(close-port input)
(let ((file (open-file temp-file "w")))
;; Acquire an exclusive lock.
(fcntl-flock file 'write-lock)
;; Tell the child to continue.
(write 'green-light output)
(force-output output)
(match (waitpid pid)
((_ . status)
(let ((result (status:exit-val status)))
(fcntl-flock file 'unlock)
(close-port file)
result)))))))))
;; This is actually in (guix store).
(test-equal "store-path-package-name"
"bash-4.2-p24"
(store-path-package-name
(string-append (%store-prefix)
"/qvs2rj2ia5vci3wsdb7qvydrmacig4pg-bash-4.2-p24")))
(test-end)
(false-if-exception (delete-file temp-file))
(exit (= (test-runner-fail-count (test-runner-current)) 0))