1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
;;;; gc.test --- test guile's garbage collection -*- scheme -*-
;;;; Copyright (C) 2000, 2001, 2004, 2006, 2007, 2008, 2009,
;;;; 2011 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(use-modules (ice-9 documentation)
(test-suite lib))
;;;
;;; miscellaneous
;;;
(define (documented? object)
(not (not (object-documentation object))))
;; In guile 1.6.4 this test bombed, due to the record in h being collected
;; by the gc, but not removed from h, leaving "x" as a freed cell.
;; The usual correct result here is for x to be #f, but there's always a
;; chance gc will mark something used when it isn't, so we allow x to be a
;; record too.
(pass-if "weak-values versus records"
(let ((rec-type (make-record-type "foo" '()))
(h (make-weak-value-hash-table 61)))
(hash-set! h "foo" ((record-constructor rec-type)))
(gc)
(let ((x (hash-ref h "foo")))
(or (not x)
((record-predicate rec-type) x)))))
;;;
;;;
;;;
(define (stack-cleanup depth)
;; Clean up stack space for DEPTH words. This is defined here so that
;; `peval' doesn't inline it.
(let cleanup ((i depth))
(and (> i 0)
(begin (cleanup (1- i)) i))))
(with-test-prefix "gc"
(pass-if "after-gc-hook gets called"
(let* ((foo #f)
(thunk (lambda () (set! foo #t))))
(add-hook! after-gc-hook thunk)
(gc)
(remove-hook! after-gc-hook thunk)
foo)))
(with-test-prefix "gc"
(pass-if "Unused modules are removed"
(let* ((guard (make-guardian))
(total 1000))
(for-each (lambda (x) (guard (make-module))) (iota total))
;; Avoid false references to the modules on the stack.
(stack-cleanup 20)
(gc)
(gc) ;; twice: have to kill the weak vectors.
(gc) ;; thrice: because the test doesn't succeed with only
;; one gc round. not sure why.
(= (let lp ((i 0))
(if (guard)
(lp (1+ i))
i))
total))))
|