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
|
# encoding: utf-8
require_relative '../fixtures/classes'
describe :io_write, shared: true do
before :each do
@filename = tmp("IO_syswrite_file") + $$.to_s
File.open(@filename, "w") do |file|
file.send(@method, "012345678901234567890123456789")
end
@file = File.open(@filename, "r+")
@readonly_file = File.open(@filename)
end
after :each do
@readonly_file.close if @readonly_file
@file.close if @file
rm_r @filename
end
it "coerces the argument to a string using to_s" do
(obj = mock('test')).should_receive(:to_s).and_return('a string')
@file.send(@method, obj)
end
it "checks if the file is writable if writing more than zero bytes" do
-> { @readonly_file.send(@method, "abcde") }.should raise_error(IOError)
end
it "returns the number of bytes written" do
written = @file.send(@method, "abcde")
written.should == 5
end
it "invokes to_s on non-String argument" do
data = "abcdefgh9876"
(obj = mock(data)).should_receive(:to_s).and_return(data)
@file.send(@method, obj)
@file.seek(0)
@file.read(data.size).should == data
end
it "writes all of the string's bytes without buffering if mode is sync" do
@file.sync = true
written = @file.send(@method, "abcde")
written.should == 5
File.open(@filename) do |file|
file.read(10).should == "abcde56789"
end
end
it "does not warn if called after IO#read" do
@file.read(5)
-> { @file.send(@method, "fghij") }.should_not complain
end
it "writes to the current position after IO#read" do
@file.read(5)
@file.send(@method, "abcd")
@file.rewind
@file.read.should == "01234abcd901234567890123456789"
end
it "advances the file position by the count of given bytes" do
@file.send(@method, "abcde")
@file.read(10).should == "5678901234"
end
it "raises IOError on closed stream" do
-> { IOSpecs.closed_io.send(@method, "hello") }.should raise_error(IOError)
end
it "does not modify the passed argument" do
File.open(@filename, "w") do |f|
f.set_encoding(Encoding::IBM437)
# A character whose codepoint differs between UTF-8 and IBM437
f.write "ƒ".freeze
end
File.binread(@filename).bytes.should == [159]
end
describe "on a pipe" do
before :each do
@r, @w = IO.pipe
end
after :each do
@r.close
@w.close
end
it "writes the given String to the pipe" do
@w.send(@method, "foo")
@w.close
@r.read.should == "foo"
end
# [ruby-core:90895] MJIT worker may leave fd open in a forked child.
# For instance, MJIT creates a worker before @r.close with fork(), @r.close happens,
# and the MJIT worker keeps the pipe open until the worker execve().
# TODO: consider acquiring GVL from MJIT worker.
guard_not -> { defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled? } do
it "raises Errno::EPIPE if the read end is closed and does not die from SIGPIPE" do
@r.close
-> { @w.send(@method, "foo") }.should raise_error(Errno::EPIPE, /Broken pipe/)
end
end
end
end
|
