guix/tests/opam.scm

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
;;;
;;; 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-opam)
  #:use-module (guix import opam)
  #:use-module (guix base32)
  #:use-module (gcrypt hash)
  #:use-module (guix tests)
  #:use-module ((guix build syscalls) #:select (mkdtemp!))
  #:use-module ((guix build utils) #:select (delete-file-recursively mkdir-p which))
  #:use-module ((guix utils) #:select (call-with-temporary-output-file))
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-64)
  #:use-module (web uri)
  #:use-module (ice-9 match)
  #:use-module (ice-9 peg))

(define test-opam-file
"opam-version: \"2.0\"
  version: \"1.0.0\"
maintainer: \"Alice Doe\"
authors: [
  \"Alice Doe\"
  \"John Doe\"
]
homepage: \"https://example.org/\"
bug-reports: \"https://example.org/bugs\"
dev-repo: \"https://example.org/git\"
build: [
  [\"ocaml\" \"pkg/pkg.ml\" \"build\" \"--pinned\" \"%{pinned}%\"]
]
build-test: [
  [\"ocaml\" \"pkg/pkg.ml\" \"build\" \"--pinned\" \"%{pinned}%\" \"--tests\" \"true\"]
]
depends: [
  \"alcotest\" {test & >= \"0.7.2\"}
  \"ocamlbuild\" {build & >= \"0.9.2\"}
  \"zarith\" {>= \"0.7\"}
]
synopsis: \"Some example package\"
description: \"\"\"
This package is just an example.\"\"\"
url {
  src: \"https://example.org/foo-1.0.0.tar.gz\"
  checksum: \"md5=74c6e897658e820006106f45f736381f\"
}")

(define test-source-hash
  "")

(define test-repo
  (mkdtemp! "/tmp/opam-repo.XXXXXX"))

(test-begin "opam")

(test-assert "opam->guix-package"
  (mock ((guix import utils) url-fetch
         (lambda (url file-name)
           (match url
             ("https://example.org/foo-1.0.0.tar.gz"
              (begin
                (mkdir-p "foo-1.0.0")
                (system* "tar" "czvf" file-name "foo-1.0.0/")
                (delete-file-recursively "foo-1.0.0")
                (set! test-source-hash
                  (call-with-input-file file-name port-sha256))))
             (_ (error "Unexpected URL: " url)))))
      (let ((my-package (string-append test-repo "/packages/foo/foo.1.0.0")))
        (mkdir-p my-package)
        (with-output-to-file (string-append my-package "/opam")
          (lambda _
            (format #t "~a" test-opam-file))))
      (mock ((guix import opam) get-opam-repository
             (lambda _
               test-repo))
        (match (opam->guix-package "foo")
          (('package
             ('name "ocaml-foo")
             ('version "1.0.0")
             ('source ('origin
                        ('method 'url-fetch)
                        ('uri "https://example.org/foo-1.0.0.tar.gz")
                        ('sha256
                         ('base32
                          (? string? hash)))))
             ('build-system 'ocaml-build-system)
             ('inputs
              ('quasiquote
               (("ocaml-zarith" ('unquote 'ocaml-zarith)))))
             ('native-inputs
              ('quasiquote
               (("ocaml-alcotest" ('unquote 'ocaml-alcotest))
                ("ocamlbuild" ('unquote 'ocamlbuild)))))
             ('home-page "https://example.org/")
             ('synopsis "Some example package")
             ('description "This package is just an example.")
             ('license #f))
           (string=? (bytevector->nix-base32-string
                      test-source-hash)
                     hash))
          (x
           (pk 'fail x #f))))))

;; Test the opam file parser
;; We fold over some test cases. Each case is a pair of the string to parse and the
;; expected result.
(test-assert "parse-strings"
  (fold (lambda (test acc)
          (display test) (newline)
          (and acc
               (let ((result (peg:tree (match-pattern (@@ (guix import opam) string-pat) (car test)))))
                 (if (equal? result (cdr test))
                   #t
                   (pk 'fail (list (car test) result (cdr test)) #f)))))
    #t '(("" . #f)
         ("\"hello\"" . (string-pat "hello"))
         ("\"hello world\"" . (string-pat "hello world"))
         ("\"The dreaded \\\"é\\\"\"" . (string-pat "The dreaded \"é\""))
         ("\"Have some \\\\\\\\ :)\"" . (string-pat "Have some \\\\ :)"))
         ("\"今日は\"" . (string-pat "今日は")))))

(test-assert "parse-multiline-strings"
  (fold (lambda (test acc)
          (display test) (newline)
          (and acc
               (let ((result (peg:tree (match-pattern (@@ (guix import opam) multiline-string) (car test)))))
                 (if (equal? result (cdr test))
                   #t
                   (pk 'fail (list (car test) result (cdr test)) #f)))))
    #t '(("" . #f)
         ("\"\"\"hello\"\"\"" . (multiline-string "hello"))
         ("\"\"\"hello \"world\"!\"\"\"" . (multiline-string "hello \"world\"!"))
         ("\"\"\"hello \"\"world\"\"!\"\"\"" . (multiline-string "hello \"\"world\"\"!")))))

(test-assert "parse-lists"
  (fold (lambda (test acc)
          (and acc
               (let ((result (peg:tree (match-pattern (@@ (guix import opam) list-pat) (car test)))))
                 (if (equal? result (cdr test))
                   #t
                   (pk 'fail (list (car test) result (cdr test)) #f)))))
    #t '(("" . #f)
         ("[]" . list-pat)
         ("[make]" . (list-pat (var "make")))
         ("[\"make\"]" . (list-pat (string-pat "make")))
         ("[\n  a\n  b\n  c]" . (list-pat (var "a") (var "b") (var "c")))
         ("[a   b     \"c\"]" . (list-pat (var "a") (var "b") (string-pat "c"))))))

(test-assert "parse-dicts"
  (fold (lambda (test acc)
          (and acc
               (let ((result (peg:tree (match-pattern (@@ (guix import opam) dict) (car test)))))
                 (if (equal? result (cdr test))
                   #t
                   (pk 'fail (list (car test) result (cdr test)) #f)))))
    #t '(("" . #f)
         ("{}" . dict)
         ("{a: \"b\"}" . (dict (record "a" (string-pat "b"))))
         ("{a: \"b\"\nc: \"d\"}" . (dict (record "a" (string-pat "b")) (record "c" (string-pat "d")))))))

(test-assert "parse-conditions"
  (fold (lambda (test acc)
          (and acc
               (let ((result (peg:tree (match-pattern (@@ (guix import opam) condition) (car test)))))
                 (if (equal? result (cdr test))
                   #t
                   (pk 'fail (list (car test) result (cdr test)) #f)))))
    #t '(("" . #f)
         ("{}" . #f)
         ("{build}" . (condition-var "build"))
         ("{>= \"0.2.0\"}" . (condition-greater-or-equal
                               (condition-string "0.2.0")))
         ("{>= \"0.2.0\" & test}" . (condition-and
                                      (condition-greater-or-equal
                                        (condition-string "0.2.0"))
                                      (condition-var "test")))
         ("{>= \"0.2.0\" | build}" . (condition-or
                                      (condition-greater-or-equal
                                        (condition-string "0.2.0"))
                                      (condition-var "build"))))))

(test-end "opam")