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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
#| -*-Scheme-*-
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
2017, 2018, 2019, 2020, 2021, 2022 Massachusetts Institute of
Technology
This file is part of MIT/GNU Scheme.
MIT/GNU Scheme 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 2 of the License, or (at
your option) any later version.
MIT/GNU Scheme 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 MIT/GNU Scheme; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
USA.
|#
;;;; Tests for binary ports
(declare (usual-integrations))
(define (random-bytevector k)
(let ((bv (make-bytevector k)))
(do ((i 0 (fix:+ i 1)))
((not (fix:< i k)))
(bytevector-u8-set! bv i (random-integer #x100)))
bv))
(define bv0 (bytevector))
(define bv1 (random-bytevector 9))
(define bv2 (random-bytevector 1000))
(define bv3 (random-bytevector 4096)) ;buffer-size
(define bv4 (random-bytevector 10000))
(define all-bvs (list bv0 bv1 bv2 bv3 bv4))
(define strides '(1 2 3 5 7 11))
(define-test 'peek/read
(lambda ()
(for-each test-peek/read all-bvs)))
(define (test-peek/read bv)
(let ((port (open-input-bytevector bv)))
(assert-binary-input-port port)
(do ((i 0 (fix:+ i 1)))
((not (fix:< i (bytevector-length bv))))
(assert-true (u8-ready? port))
(assert-eqv (peek-u8 port) (bytevector-u8-ref bv i))
(assert-true (u8-ready? port))
(assert-eqv (read-u8 port) (bytevector-u8-ref bv i)))
(assert-true (u8-ready? port))
(assert-eqv (peek-u8 port) (eof-object))
(assert-true (u8-ready? port))
(assert-eqv (read-u8 port) (eof-object))))
(define-test 'read-bytevector
(lambda ()
(for-each test-read-bytevector all-bvs)))
(define (test-read-bytevector bv)
(for-each (lambda (stride)
(test-read-bytevector-1 bv (lambda () stride)))
strides)
(test-read-bytevector-1 bv (sequential-get-stride strides))
(test-read-bytevector-1 bv (sequential-get-stride (reverse strides))))
(define (test-read-bytevector-1 bv get-stride)
(let ((port (open-input-bytevector bv)))
(assert-binary-input-port port)
(let loop ((i 0))
(let ((stride (get-stride))
(remaining (fix:- (bytevector-length bv) i)))
(assert-true (u8-ready? port))
(if (fix:> remaining 0)
(let ((i* (fix:+ i (fix:min stride remaining))))
(assert-equal (read-bytevector stride port)
(bytevector-copy bv i i*))
(loop i*))
(assert-equal (read-bytevector stride port)
(eof-object)))))))
(define-test 'read-bytevector!
(lambda ()
(for-each test-read-bytevector! all-bvs)))
(define (test-read-bytevector! bv)
(for-each (lambda (stride)
(test-read-bytevector!-1 bv (lambda () stride)))
strides)
(test-read-bytevector!-1 bv (sequential-get-stride strides))
(test-read-bytevector!-1 bv (sequential-get-stride (reverse strides))))
(define (test-read-bytevector!-1 bv get-stride)
(let ((port (open-input-bytevector bv))
(target (make-bytevector (fix:+ (bytevector-length bv) 1))))
(assert-binary-input-port port)
(let loop ((i 0))
(let ((stride (get-stride))
(remaining (fix:- (bytevector-length bv) i)))
(assert-true (u8-ready? port))
(if (fix:> remaining 0)
(let ((i* (fix:+ i (fix:min stride remaining))))
(assert-eqv (read-bytevector! target port i i*)
(fix:- i* i))
(loop i*))
(assert-eqv (read-bytevector! target port i (fix:+ i 1))
(eof-object)))))
(assert-equal (bytevector-copy target 0 (bytevector-length bv))
bv)))
(define-test 'write-u8
(lambda ()
(for-each test-write-u8 all-bvs)))
(define (test-write-u8 bv)
(let ((port (open-output-bytevector)))
(assert-binary-output-port port)
(do ((i 0 (fix:+ i 1)))
((not (fix:< i (bytevector-length bv))))
(write-u8 (bytevector-u8-ref bv i) port))
(assert-equal (get-output-bytevector port) bv)))
(define-test 'write-bytevector
(lambda ()
(for-each test-write-bytevector all-bvs)))
(define (test-write-bytevector bv)
(for-each (lambda (stride)
(test-write-bytevector-1 bv (lambda () stride)))
strides)
(test-write-bytevector-1 bv (sequential-get-stride strides))
(test-write-bytevector-1 bv (sequential-get-stride (reverse strides))))
(define (test-write-bytevector-1 bv get-stride)
(let ((port (open-output-bytevector)))
(assert-binary-output-port port)
(let loop ((i 0))
(let ((stride (get-stride))
(remaining (fix:- (bytevector-length bv) i)))
(if (fix:> remaining 0)
(let ((i* (fix:+ i (fix:min stride remaining))))
(assert-eqv (write-bytevector bv port i i*)
(fix:- i* i))
(loop i*)))))
(assert-equal (get-output-bytevector port) bv)))
(define (sequential-get-stride strides)
(lambda ()
(let ((stride (car strides)))
(if (pair? (cdr strides))
(set! strides (cdr strides)))
stride)))
(define (assert-binary-input-port port)
(assert-true (binary-port? port))
(assert-false (textual-port? port))
(assert-true (input-port? port))
(assert-false (output-port? port))
(assert-false (i/o-port? port)))
(define (assert-binary-output-port port)
(assert-true (binary-port? port))
(assert-false (textual-port? port))
(assert-false (input-port? port))
(assert-true (output-port? port))
(assert-false (i/o-port? port)))
(define-test 'position
(lambda ()
(call-with-temporary-file-pathname
(lambda (pathname)
(call-with-binary-output-file pathname
(lambda (port)
(assert-= (binary-port-position port) 0)
(write-u8 42 port)
(assert-= (binary-port-position port) 1)
(write-bytevector (make-bytevector 1000 0) port)
(assert-= (binary-port-position port) 1001)))
(call-with-binary-input-file pathname
(lambda (port)
(assert-= (binary-port-position port) 0)
(assert-= (read-u8 port) 42)
(assert-= (binary-port-position port) 1)
(assert-equal (read-bytevector 1000 port)
(make-bytevector 1000 0))
(assert-= (binary-port-position port) 1001)))))))
|
