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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 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-gexp)
+ #:use-module (guix store)
+ #:use-module (guix monads)
+ #:use-module (guix gexp)
+ #:use-module (guix derivations)
+ #:use-module ((guix packages)
+ #:select (package-derivation %current-system))
+ #:use-module (gnu packages)
+ #:use-module (gnu packages base)
+ #:use-module (gnu packages bootstrap)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-64)
+ #:use-module (rnrs io ports)
+ #:use-module (ice-9 match)
+ #:use-module (ice-9 popen))
+
+;; Test the (guix gexp) module.
+
+(define %store
+ (open-connection))
+
+;; For white-box testing.
+(define gexp-inputs (@@ (guix gexp) gexp-inputs))
+(define gexp->sexp (@@ (guix gexp) gexp->sexp))
+
+(define guile-for-build
+ (package-derivation %store %bootstrap-guile))
+
+;; Make it the default.
+(%guile-for-build guile-for-build)
+
+(define (gexp->sexp* exp)
+ (run-with-store %store (gexp->sexp exp)
+ #:guile-for-build guile-for-build))
+
+(define-syntax-rule (test-assertm name exp)
+ (test-assert name
+ (run-with-store %store exp
+ #:guile-for-build guile-for-build)))
+
+
+(test-begin "gexp")
+
+(test-equal "no refs"
+ '(display "hello!")
+ (let ((exp (gexp (display "hello!"))))
+ (and (gexp? exp)
+ (null? (gexp-inputs exp))
+ (gexp->sexp* exp))))
+
+(test-equal "unquote"
+ '(display `(foo ,(+ 2 3)))
+ (let ((exp (gexp (display `(foo ,(+ 2 3))))))
+ (and (gexp? exp)
+ (null? (gexp-inputs exp))
+ (gexp->sexp* exp))))
+
+(test-assert "one input package"
+ (let ((exp (gexp (display (ungexp coreutils)))))
+ (and (gexp? exp)
+ (match (gexp-inputs exp)
+ (((p "out"))
+ (eq? p coreutils)))
+ (equal? `(display ,(derivation->output-path
+ (package-derivation %store coreutils)))
+ (gexp->sexp* exp)))))
+
+(test-assert "same input twice"
+ (let ((exp (gexp (begin
+ (display (ungexp coreutils))
+ (display (ungexp coreutils))))))
+ (and (gexp? exp)
+ (match (gexp-inputs exp)
+ (((p "out"))
+ (eq? p coreutils)))
+ (let ((e `(display ,(derivation->output-path
+ (package-derivation %store coreutils)))))
+ (equal? `(begin ,e ,e) (gexp->sexp* exp))))))
+
+(test-assert "two input packages, one derivation, one file"
+ (let* ((drv (build-expression->derivation
+ %store "foo" 'bar
+ #:guile-for-build (package-derivation %store %bootstrap-guile)))
+ (txt (add-text-to-store %store "foo" "Hello, world!"))
+ (exp (gexp (begin
+ (display (ungexp coreutils))
+ (display (ungexp %bootstrap-guile))
+ (display (ungexp drv))
+ (display (ungexp txt))))))
+ (define (match-input thing)
+ (match-lambda
+ ((drv-or-pkg _ ...)
+ (eq? thing drv-or-pkg))))
+
+ (and (gexp? exp)
+ (= 4 (length (gexp-inputs exp)))
+ (every (lambda (input)
+ (find (match-input input) (gexp-inputs exp)))
+ (list drv coreutils %bootstrap-guile txt))
+ (let ((e0 `(display ,(derivation->output-path
+ (package-derivation %store coreutils))))
+ (e1 `(display ,(derivation->output-path
+ (package-derivation %store %bootstrap-guile))))
+ (e2 `(display ,(derivation->output-path drv)))
+ (e3 `(display ,txt)))
+ (equal? `(begin ,e0 ,e1 ,e2 ,e3) (gexp->sexp* exp))))))
+
+(test-assert "input list"
+ (let ((exp (gexp (display
+ '(ungexp (list %bootstrap-guile coreutils)))))
+ (guile (derivation->output-path
+ (package-derivation %store %bootstrap-guile)))
+ (cu (derivation->output-path
+ (package-derivation %store coreutils))))
+ (and (lset= equal?
+ `((,%bootstrap-guile "out") (,coreutils "out"))
+ (gexp-inputs exp))
+ (equal? `(display '(,guile ,cu))
+ (gexp->sexp* exp)))))
+
+(test-assert "input list splicing"
+ (let* ((inputs (list (list glibc "debug") %bootstrap-guile))
+ (outputs (list (derivation->output-path
+ (package-derivation %store glibc)
+ "debug")
+ (derivation->output-path
+ (package-derivation %store %bootstrap-guile))))
+ (exp (gexp (list (ungexp-splicing (cons (+ 2 3) inputs))))))
+ (and (lset= equal?
+ `((,glibc "debug") (,%bootstrap-guile "out"))
+ (gexp-inputs exp))
+ (equal? (gexp->sexp* exp)
+ `(list ,@(cons 5 outputs))))))
+
+(test-assertm "gexp->file"
+ (mlet* %store-monad ((exp -> (gexp (display (ungexp %bootstrap-guile))))
+ (guile (package-file %bootstrap-guile))
+ (sexp (gexp->sexp exp))
+ (drv (gexp->file "foo" exp))
+ (out -> (derivation->output-path drv))
+ (done (built-derivations (list drv)))
+ (refs ((store-lift references) out)))
+ (return (and (equal? sexp (call-with-input-file out read))
+ (equal? (list guile) refs)))))
+
+(test-assertm "gexp->derivation"
+ (mlet* %store-monad ((file (text-file "foo" "Hello, world!"))
+ (exp -> (gexp
+ (begin
+ (mkdir (ungexp output))
+ (chdir (ungexp output))
+ (symlink
+ (string-append (ungexp %bootstrap-guile)
+ "/bin/guile")
+ "foo")
+ (symlink (ungexp file)
+ (ungexp output "2nd")))))
+ (drv (gexp->derivation "foo" exp))
+ (out -> (derivation->output-path drv))
+ (out2 -> (derivation->output-path drv "2nd"))
+ (done (built-derivations (list drv)))
+ (refs ((store-lift references) out))
+ (refs2 ((store-lift references) out2))
+ (guile (package-file %bootstrap-guile "bin/guile")))
+ (return (and (string=? (readlink (string-append out "/foo")) guile)
+ (string=? (readlink out2) file)
+ (equal? refs (list (dirname (dirname guile))))
+ (equal? refs2 (list file))))))
+
+(test-assertm "gexp->derivation, composed gexps"
+ (mlet* %store-monad ((exp0 -> (gexp (begin
+ (mkdir (ungexp output))
+ (chdir (ungexp output)))))
+ (exp1 -> (gexp (symlink
+ (string-append (ungexp %bootstrap-guile)
+ "/bin/guile")
+ "foo")))
+ (exp -> (gexp (begin (ungexp exp0) (ungexp exp1))))
+ (drv (gexp->derivation "foo" exp))
+ (out -> (derivation->output-path drv))
+ (done (built-derivations (list drv)))
+ (guile (package-file %bootstrap-guile "bin/guile")))
+ (return (string=? (readlink (string-append out "/foo"))
+ guile))))
+
+(test-assertm "gexp->script"
+ (mlet* %store-monad ((n -> (random (expt 2 50)))
+ (exp -> (gexp
+ (system*
+ (string-append (ungexp %bootstrap-guile)
+ "/bin/guile")
+ "-c" (object->string
+ '(display (expt (ungexp n) 2))))))
+ (drv (gexp->script "guile-thing" exp
+ #:guile %bootstrap-guile))
+ (out -> (derivation->output-path drv))
+ (done (built-derivations (list drv))))
+ (let* ((pipe (open-input-pipe out))
+ (str (get-string-all pipe)))
+ (return (and (zero? (close-pipe pipe))
+ (= (expt n 2) (string->number str)))))))
+
+(test-equal "sugar"
+ '(gexp (foo (ungexp bar) (ungexp baz "out")
+ (ungexp (chbouib 42))
+ (ungexp-splicing (list x y z))))
+ '#~(foo #$bar #$baz:out #$(chbouib 42) #$@(list x y z)))
+
+(test-end "gexp")
+
+
+(exit (= (test-runner-fail-count (test-runner-current)) 0))
+
+;; Local Variables:
+;; eval: (put 'test-assertm 'scheme-indent-function 1)
+;; End:
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