add with-fluids objects and primitive syntax
[bpt/guile.git] / test-suite / tests / fluids.test
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1;;;; -*- scheme -*-
2;;;; fluids.test --- test suite for fluid values
3;;;;
4;;;; Copyright (C) 2010 Free Software Foundation, Inc.
5;;;;
6;;;; This library is free software; you can redistribute it and/or
7;;;; modify it under the terms of the GNU Lesser General Public
8;;;; License as published by the Free Software Foundation; either
9;;;; version 3 of the License, or (at your option) any later version.
10;;;;
11;;;; This library is distributed in the hope that it will be useful,
12;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14;;;; Lesser General Public License for more details.
15;;;;
16;;;; You should have received a copy of the GNU Lesser General Public
17;;;; License along with this library; if not, write to the Free Software
18;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
20(define-module (test-suite test-fluids)
21 :use-module (test-suite lib))
22
23
24(define a (make-fluid))
25(define b (make-fluid))
26(define c #f)
27
28(with-test-prefix "initial fluid values"
29 (pass-if "fluid-ref uninitialized fluid is #f"
30 (not (fluid-ref a))))
31
32(with-test-prefix "with-fluids with non-fluid"
33 (pass-if-exception "exception raised if nonfluid passed to with-fluids"
34 exception:wrong-type-arg
35 (with-fluids ((c #t))
36 c))
37
bb0229b5 38 (pass-if "fluids not modified if nonfluid passed to with-fluids"
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39 (catch 'wrong-type-arg
40 (lambda ()
41 (with-fluids ((a #t)
42 (c #t))
43 #f))
44 (lambda _
45 (not (fluid-ref a))))))
46
47(with-test-prefix "with-fluids with duplicate fluid"
48 (pass-if "last value wins"
49 (with-fluids ((a 1)
50 (a 2))
51 (eqv? (fluid-ref a) 2)))
52
53 (pass-if "original value restored"
54 (and (with-fluids ((a 1)
55 (a 2))
56 (eqv? (fluid-ref a) 2))
57 (eqv? (fluid-ref a) #f))))