gash/tests/environment.scm

112 lines
3.4 KiB
Scheme

;;; The Geesh Shell Interpreter
;;; Copyright 2018 Timothy Sample <samplet@ngyro.com>
;;;
;;; This file is part of Geesh.
;;;
;;; Geesh 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.
;;;
;;; Geesh 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 Geesh. If not, see <http://www.gnu.org/licenses/>.
(define-module (test-environment)
#:use-module (geesh environment)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-64)
#:use-module (tests automake))
;;; Commentary:
;;;
;;; Tests for the environment module.
;;;
;;; Code:
(test-begin "environment")
;;;
;;; Variables.
;;;
(test-equal "Stores existing variables"
"bar"
(let ((env (make-environment '(("FOO" . "bar")))))
(var-ref env "FOO")))
(test-equal "Stores new variables"
"bar"
(let ((env (make-environment '())))
(set-var! env "FOO" "bar")
(var-ref env "FOO")))
(test-equal "Updates variables"
"baz"
(let ((env (make-environment '(("FOO" . "bar")))))
(set-var! env "FOO" "baz")
(var-ref env "FOO")))
(test-equal "Returns '#f' for unset variables"
#f
(let ((env (make-environment '())))
(var-ref env "FOO")))
;;;
;;; Making and reading 'environs'.
;;;
(define (subset? lst1 lst2)
"Test if @var{lst1} is a subset of @var{lst2}."
(every (lambda (x) (member x lst2)) lst1))
(define (set=? lst1 lst2)
"Test if @var{lst1} is @code{equal?} to @var{lst2} without respect
to order."
(and (subset? lst1 lst2)
(subset? lst2 lst1)))
(test-equal "Creates environ from empty environment"
'()
(let ((env (make-environment '())))
(environment->environ env)))
(test-assert "Creates environ from environment"
(let* ((env (make-environment '(("FOO" . "abc")
("BAR" . "def"))))
(environ (environment->environ env)))
(set=? environ '("FOO=abc" "BAR=def"))))
(test-assert "Creates environ from empty environment and bindings"
(let* ((env (make-environment '()))
(bindings '(("FOO" . "abc")
("BAR" . "def")))
(environ (environment->environ env bindings)))
(set=? environ '("FOO=abc" "BAR=def"))))
(test-assert "Creates environ from environment and bindings"
(let* ((env (make-environment '(("FOO" . "abc")
("BAZ" . "ghi"))))
(bindings '(("BAR" . "def")
("QUUX" . "jkl")))
(environ (environment->environ env bindings)))
(set=? environ '("FOO=abc" "BAR=def" "BAZ=ghi" "QUUX=jkl"))))
(test-assert "Bindings override environment when creating an environ"
(let* ((env (make-environment '(("FOO" . "abc")
("BAR" . "def"))))
(bindings '(("FOO" . "ghi")))
(environ (environment->environ env bindings)))
(set=? environ '("FOO=ghi" "BAR=def"))))
(test-assert "Creates an alist from an environ"
(let* ((environ '("FOO=abc" "BAR=def"))
(alist (environ->alist environ)))
(set=? alist '(("FOO" . "abc") ("BAR" . "def")))))
(test-end)