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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
|
require 'test/unit'
require 'tmpdir'
require 'io/nonblock'
require 'socket'
require 'stringio'
class TestIO < Test::Unit::TestCase
def test_gets_rs
# default_rs
r, w = IO.pipe
w.print "aaa\nbbb\n"
w.close
assert_equal "aaa\n", r.gets
assert_equal "bbb\n", r.gets
assert_nil r.gets
r.close
# nil
r, w = IO.pipe
w.print "a\n\nb\n\n"
w.close
assert_equal "a\n\nb\n\n", r.gets(nil)
assert_nil r.gets("")
r.close
# "\377"
r, w = IO.pipe('ascii-8bit')
w.print "\377xyz"
w.close
r.binmode
assert_equal("\377", r.gets("\377"), "[ruby-dev:24460]")
r.close
# ""
r, w = IO.pipe
w.print "a\n\nb\n\n"
w.close
assert_equal "a\n\n", r.gets(""), "[ruby-core:03771]"
assert_equal "b\n\n", r.gets("")
assert_nil r.gets("")
r.close
end
# This test cause SEGV.
def test_ungetc
r, w = IO.pipe
w.close
assert_raise(IOError, "[ruby-dev:31650]") { 20000.times { r.ungetc "a" } }
ensure
r.close
end
def test_each_byte
r, w = IO.pipe
w << "abc def"
w.close
r.each_byte {|byte| break if byte == 32 }
assert_equal("def", r.read, "[ruby-dev:31659]")
ensure
r.close
end
def test_rubydev33072
assert_raise(Errno::ENOENT, "[ruby-dev:33072]") do
File.read("empty", nil, nil, {})
end
end
def with_pipe
r, w = IO.pipe
begin
yield r, w
ensure
r.close unless r.closed?
w.close unless w.closed?
end
end
def with_read_pipe(content)
r, w = IO.pipe
w << content
w.close
begin
yield r
ensure
r.close
end
end
def mkcdtmpdir
Dir.mktmpdir {|d|
Dir.chdir(d) {
yield
}
}
end
def test_copy_stream
mkcdtmpdir {|d|
content = "foobar"
File.open("src", "w") {|f| f << content }
ret = IO.copy_stream("src", "dst")
assert_equal(content.bytesize, ret)
assert_equal(content, File.read("dst"))
# overwrite by smaller file.
content = "baz"
File.open("src", "w") {|f| f << content }
ret = IO.copy_stream("src", "dst")
assert_equal(content.bytesize, ret)
assert_equal(content, File.read("dst"))
ret = IO.copy_stream("src", "dst", 2)
assert_equal(2, ret)
assert_equal(content[0,2], File.read("dst"))
ret = IO.copy_stream("src", "dst", 0)
assert_equal(0, ret)
assert_equal("", File.read("dst"))
ret = IO.copy_stream("src", "dst", nil, 1)
assert_equal(content.bytesize-1, ret)
assert_equal(content[1..-1], File.read("dst"))
assert_raise(Errno::ENOENT) {
IO.copy_stream("nodir/foo", "dst")
}
assert_raise(Errno::ENOENT) {
IO.copy_stream("src", "nodir/bar")
}
with_pipe {|r, w|
ret = IO.copy_stream("src", w)
assert_equal(content.bytesize, ret)
w.close
assert_equal(content, r.read)
}
with_pipe {|r, w|
w.close
assert_raise(IOError) { IO.copy_stream("src", w) }
}
pipe_content = "abc"
with_read_pipe(pipe_content) {|r|
ret = IO.copy_stream(r, "dst")
assert_equal(pipe_content.bytesize, ret)
assert_equal(pipe_content, File.read("dst"))
}
with_read_pipe("abc") {|r1|
assert_equal("a", r1.getc)
with_pipe {|r2, w2|
w2.sync = false
w2 << "def"
ret = IO.copy_stream(r1, w2)
assert_equal(2, ret)
w2.close
assert_equal("defbc", r2.read)
}
}
with_read_pipe("abc") {|r1|
assert_equal("a", r1.getc)
with_pipe {|r2, w2|
w2.sync = false
w2 << "def"
ret = IO.copy_stream(r1, w2, 1)
assert_equal(1, ret)
w2.close
assert_equal("defb", r2.read)
}
}
with_read_pipe("abc") {|r1|
assert_equal("a", r1.getc)
with_pipe {|r2, w2|
ret = IO.copy_stream(r1, w2)
assert_equal(2, ret)
w2.close
assert_equal("bc", r2.read)
}
}
with_read_pipe("abc") {|r1|
assert_equal("a", r1.getc)
with_pipe {|r2, w2|
ret = IO.copy_stream(r1, w2, 1)
assert_equal(1, ret)
w2.close
assert_equal("b", r2.read)
}
}
with_read_pipe("abc") {|r1|
assert_equal("a", r1.getc)
with_pipe {|r2, w2|
ret = IO.copy_stream(r1, w2, 0)
assert_equal(0, ret)
w2.close
assert_equal("", r2.read)
}
}
with_pipe {|r1, w1|
w1 << "abc"
assert_equal("a", r1.getc)
with_pipe {|r2, w2|
w1 << "def"
w1.close
ret = IO.copy_stream(r1, w2)
assert_equal(5, ret)
w2.close
assert_equal("bcdef", r2.read)
}
}
with_pipe {|r, w|
ret = IO.copy_stream("src", w, 1, 1)
assert_equal(1, ret)
w.close
assert_equal(content[1,1], r.read)
}
with_read_pipe("abc") {|r1|
assert_equal("a", r1.getc)
with_pipe {|r2, w2|
w2.nonblock = true
s = w2.syswrite("a" * 100000)
t = Thread.new { sleep 0.1; r2.read }
ret = IO.copy_stream(r1, w2)
w2.close
assert_equal(2, ret)
assert_equal("a" * s + "bc", t.value)
}
}
bigcontent = "abc" * 123456
File.open("bigsrc", "w") {|f| f << bigcontent }
ret = IO.copy_stream("bigsrc", "bigdst")
assert_equal(bigcontent.bytesize, ret)
assert_equal(bigcontent, File.read("bigdst"))
File.unlink("bigdst")
ret = IO.copy_stream("bigsrc", "bigdst", nil, 100)
assert_equal(bigcontent.bytesize-100, ret)
assert_equal(bigcontent[100..-1], File.read("bigdst"))
File.unlink("bigdst")
ret = IO.copy_stream("bigsrc", "bigdst", 30000, 100)
assert_equal(30000, ret)
assert_equal(bigcontent[100, 30000], File.read("bigdst"))
File.open("bigsrc") {|f|
assert_equal(0, f.pos)
ret = IO.copy_stream(f, "bigdst", nil, 10)
assert_equal(bigcontent.bytesize-10, ret)
assert_equal(bigcontent[10..-1], File.read("bigdst"))
assert_equal(0, f.pos)
ret = IO.copy_stream(f, "bigdst", 40, 30)
assert_equal(40, ret)
assert_equal(bigcontent[30, 40], File.read("bigdst"))
assert_equal(0, f.pos)
}
with_pipe {|r, w|
w.close
assert_raise(IOError) { IO.copy_stream("src", w) }
}
megacontent = "abc" * 1234567
File.open("megasrc", "w") {|f| f << megacontent }
with_pipe {|r1, w1|
with_pipe {|r2, w2|
t1 = Thread.new { w1 << megacontent; w1.close }
t2 = Thread.new { r2.read }
r1.nonblock = true
w2.nonblock = true
ret = IO.copy_stream(r1, w2)
assert_equal(megacontent.bytesize, ret)
w2.close
t1.join
assert_equal(megacontent, t2.value)
}
}
with_pipe {|r1, w1|
with_pipe {|r2, w2|
t1 = Thread.new { w1 << megacontent; w1.close }
t2 = Thread.new { r2.read }
ret = IO.copy_stream(r1, w2)
assert_equal(megacontent.bytesize, ret)
w2.close
t1.join
assert_equal(megacontent, t2.value)
}
}
with_pipe {|r, w|
t = Thread.new { r.read }
ret = IO.copy_stream("megasrc", w)
assert_equal(megacontent.bytesize, ret)
w.close
assert_equal(megacontent, t.value)
}
}
end
def with_socketpair
s1, s2 = UNIXSocket.pair
begin
yield s1, s2
ensure
s1.close unless s1.closed?
s2.close unless s2.closed?
end
end
def test_copy_stream_socket
return unless defined? UNIXSocket
mkcdtmpdir {|d|
content = "foobar"
File.open("src", "w") {|f| f << content }
with_socketpair {|s1, s2|
ret = IO.copy_stream("src", s1)
assert_equal(content.bytesize, ret)
s1.close
assert_equal(content, s2.read)
}
bigcontent = "abc" * 123456
File.open("bigsrc", "w") {|f| f << bigcontent }
with_socketpair {|s1, s2|
t = Thread.new { s2.read }
ret = IO.copy_stream("bigsrc", s1)
assert_equal(bigcontent.bytesize, ret)
s1.close
result = t.value
assert_equal(bigcontent, result)
}
with_socketpair {|s1, s2|
t = Thread.new { s2.read }
ret = IO.copy_stream("bigsrc", s1, 10000)
assert_equal(10000, ret)
s1.close
result = t.value
assert_equal(bigcontent[0,10000], result)
}
File.open("bigsrc") {|f|
assert_equal(0, f.pos)
with_socketpair {|s1, s2|
t = Thread.new { s2.read }
ret = IO.copy_stream(f, s1, nil, 100)
assert_equal(bigcontent.bytesize-100, ret)
assert_equal(0, f.pos)
s1.close
result = t.value
assert_equal(bigcontent[100..-1], result)
}
}
File.open("bigsrc") {|f|
assert_equal(bigcontent[0,100], f.read(100))
assert_equal(100, f.pos)
with_socketpair {|s1, s2|
t = Thread.new { s2.read }
ret = IO.copy_stream(f, s1)
assert_equal(bigcontent.bytesize-100, ret)
assert_equal(bigcontent.length, f.pos)
s1.close
result = t.value
assert_equal(bigcontent[100..-1], result)
}
}
megacontent = "abc" * 1234567
File.open("megasrc", "w") {|f| f << megacontent }
with_socketpair {|s1, s2|
t = Thread.new { s2.read }
s1.nonblock = true
ret = IO.copy_stream("megasrc", s1)
assert_equal(megacontent.bytesize, ret)
s1.close
result = t.value
assert_equal(megacontent, result)
}
}
end
def test_copy_stream_strio
src = StringIO.new("abcd")
dst = StringIO.new
ret = IO.copy_stream(src, dst)
assert_equal(4, ret)
assert_equal("abcd", dst.string)
assert_equal(4, src.pos)
end
def test_copy_stream_strio_len
src = StringIO.new("abcd")
dst = StringIO.new
ret = IO.copy_stream(src, dst, 3)
assert_equal(3, ret)
assert_equal("abc", dst.string)
assert_equal(3, src.pos)
end
def test_copy_stream_strio_off
src = StringIO.new("abcd")
with_pipe {|r, w|
assert_raise(ArgumentError) {
IO.copy_stream(src, w, 3, 1)
}
}
end
def test_copy_stream_non_io
mkcdtmpdir {|d|
# filename to StringIO
File.open("foo", "w") {|f| f << "abcd" }
src = "foo"
dst = StringIO.new
ret = IO.copy_stream(src, dst, 3)
assert_equal(3, ret)
assert_equal("abc", dst.string)
# StringIO to filename
src = StringIO.new("abcd")
ret = File.open("fooo", "w") {|dst|
IO.copy_stream(src, dst, 3)
}
assert_equal(3, ret)
assert_equal("abc", dst.string)
assert_equal(3, src.pos)
# IO to StringIO
File.open("bar", "w") {|f| f << "abcd" }
File.open("bar") {|src|
dst = StringIO.new
ret = IO.copy_stream(src, dst, 3)
assert_equal(3, ret)
assert_equal("abc", dst.string)
assert_equal(3, src.pos)
}
# StringIO to IO
src = StringIO.new("abcd")
ret = File.open("baz", "w") {|dst|
IO.copy_stream(src, dst, 3)
}
assert_equal(3, ret)
assert_equal("abc", File.read("baz"))
assert_equal(3, src.pos)
}
end
end
|