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
|
# -*- coding: us-ascii -*-
# frozen_string_literal: false
require 'test/unit'
require 'timeout'
require 'socket'
begin
require 'io/wait'
rescue LoadError
end
class TestIOWait < Test::Unit::TestCase
def setup
if /mswin|mingw/ =~ RUBY_PLATFORM
@r, @w = Socket.pair(Socket::AF_INET, Socket::SOCK_STREAM, 0)
else
@r, @w = IO.pipe
end
end
def teardown
@r.close unless @r.closed?
@w.close unless @w.closed?
end
def test_nread
assert_equal 0, @r.nread
@w.syswrite "."
sleep 0.1
assert_equal 1, @r.nread
end
def test_nread_buffered
@w.syswrite ".\n!"
assert_equal ".\n", @r.gets
assert_equal 1, @r.nread
end
def test_ready?
refute @r.ready?, "shouldn't ready, but ready"
@w.syswrite "."
sleep 0.1
assert @r.ready?, "should ready, but not"
end
def test_buffered_ready?
@w.syswrite ".\n!"
assert_equal ".\n", @r.gets
assert @r.ready?
end
def test_wait
assert_nil @r.wait(0)
@w.syswrite "."
sleep 0.1
assert_equal @r, @r.wait(0)
end
def test_wait_buffered
@w.syswrite ".\n!"
assert_equal ".\n", @r.gets
assert_equal true, @r.wait(0)
end
def test_wait_forever
th = Thread.new { sleep 0.01; @w.syswrite "." }
assert_equal @r, @r.wait
ensure
th.join
end
def test_wait_eof
th = Thread.new { sleep 0.01; @w.close }
ret = nil
assert_nothing_raised(Timeout::Error) do
Timeout.timeout(0.1) { ret = @r.wait }
end
assert_equal @r, ret
ensure
th.join
end
def test_wait_readable
assert_nil @r.wait_readable(0)
@w.syswrite "."
sleep 0.1
assert_equal @r, @r.wait_readable(0)
end
def test_wait_readable_buffered
@w.syswrite ".\n!"
assert_equal ".\n", @r.gets
assert_equal true, @r.wait_readable(0)
end
def test_wait_readable_forever
th = Thread.new { sleep 0.01; @w.syswrite "." }
assert_equal @r, @r.wait_readable
ensure
th.join
end
def test_wait_readable_eof
th = Thread.new { sleep 0.01; @w.close }
ret = nil
assert_nothing_raised(Timeout::Error) do
Timeout.timeout(0.1) { ret = @r.wait_readable }
end
assert_equal @r, ret
ensure
th.join
end
def test_wait_writable
assert_equal @w, @w.wait_writable
end
def test_wait_writable_timeout
assert_equal @w, @w.wait_writable(0.01)
written = fill_pipe
assert_nil @w.wait_writable(0.01)
@r.read(written)
assert_equal @w, @w.wait_writable(0.01)
end
def test_wait_writable_EPIPE
fill_pipe
@r.close
assert_equal @w, @w.wait_writable
end
def test_wait_writable_closed
@w.close
assert_raise(IOError) { @w.wait_writable }
end
def test_wait_readwrite
assert_equal @r.wait(0, :write), @r.wait(0, :read_write)
end
def test_wait_readwrite_timeout
assert_equal @w, @w.wait(0.01, :read_write)
written = fill_pipe
assert_nil @w.wait(0.01, :read_write)
@r.read(written)
assert_equal @w, @w.wait(0.01, :read_write)
end
private
def fill_pipe
written = 0
buf = " " * 4096
begin
written += @w.write_nonblock(buf)
rescue Errno::EAGAIN, Errno::EWOULDBLOCK
return written
end while true
end
end if IO.method_defined?(:wait)
|