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
|
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "IO.pipe" do
after :each do
@r.close if @r && [email protected]?
@w.close if @w && [email protected]?
end
it "creates a two-ended pipe" do
@r, @w = IO.pipe
@w.puts "test_create_pipe\\n"
@w.close
@r.read(16).should == "test_create_pipe"
end
it "returns two IO objects" do
@r, @w = IO.pipe
@r.should be_kind_of(IO)
@w.should be_kind_of(IO)
end
it "returns instances of a subclass when called on a subclass" do
@r, @w = IOSpecs::SubIO.pipe
@r.should be_an_instance_of(IOSpecs::SubIO)
@w.should be_an_instance_of(IOSpecs::SubIO)
end
it "does not use IO.new method to create pipes and allows its overriding" do
ScratchPad.record []
# so redefined .new is not called, but original #initialize is
@r, @w = IOSpecs::SubIOWithRedefinedNew.pipe
ScratchPad.recorded.should == [:call_original_initialize, :call_original_initialize] # called 2 times - for each pipe (r and w)
@r.should be_an_instance_of(IOSpecs::SubIOWithRedefinedNew)
@w.should be_an_instance_of(IOSpecs::SubIOWithRedefinedNew)
end
end
describe "IO.pipe" do
describe "passed a block" do
it "yields two IO objects" do
IO.pipe do |r, w|
r.should be_kind_of(IO)
w.should be_kind_of(IO)
end
end
it "returns the result of the block" do
IO.pipe { |r, w| :result }.should == :result
end
it "closes both IO objects" do
r, w = IO.pipe do |_r, _w|
[_r, _w]
end
r.should.closed?
w.should.closed?
end
it "closes both IO objects when the block raises" do
r = w = nil
-> do
IO.pipe do |_r, _w|
r = _r
w = _w
raise RuntimeError
end
end.should raise_error(RuntimeError)
r.should.closed?
w.should.closed?
end
it "allows IO objects to be closed within the block" do
r, w = IO.pipe do |_r, _w|
_r.close
_w.close
[_r, _w]
end
r.should.closed?
w.should.closed?
end
end
end
describe "IO.pipe" do
before :each do
@default_external = Encoding.default_external
@default_internal = Encoding.default_internal
end
after :each do
Encoding.default_external = @default_external
Encoding.default_internal = @default_internal
end
it "sets the external encoding of the read end to the default when passed no arguments" do
Encoding.default_external = Encoding::ISO_8859_1
IO.pipe do |r, w|
r.external_encoding.should == Encoding::ISO_8859_1
r.internal_encoding.should be_nil
end
end
it "sets the internal encoding of the read end to the default when passed no arguments" do
Encoding.default_external = Encoding::ISO_8859_1
Encoding.default_internal = Encoding::UTF_8
IO.pipe do |r, w|
r.external_encoding.should == Encoding::ISO_8859_1
r.internal_encoding.should == Encoding::UTF_8
end
end
it "sets the internal encoding to nil if the same as the external" do
Encoding.default_external = Encoding::UTF_8
Encoding.default_internal = Encoding::UTF_8
IO.pipe do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should be_nil
end
end
it "sets the external encoding of the read end when passed an Encoding argument" do
IO.pipe(Encoding::UTF_8) do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should be_nil
end
end
it "sets the external and internal encodings of the read end when passed two Encoding arguments" do
IO.pipe(Encoding::UTF_8, Encoding::UTF_16BE) do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should == Encoding::UTF_16BE
end
end
it "sets the external encoding of the read end when passed the name of an Encoding" do
IO.pipe("UTF-8") do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should be_nil
end
end
it "accepts 'bom|' prefix for external encoding" do
IO.pipe("BOM|UTF-8") do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should be_nil
end
end
it "sets the external and internal encodings specified as a String and separated with a colon" do
IO.pipe("UTF-8:ISO-8859-1") do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should == Encoding::ISO_8859_1
end
end
it "accepts 'bom|' prefix for external encoding when specifying 'external:internal'" do
IO.pipe("BOM|UTF-8:ISO-8859-1") do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should == Encoding::ISO_8859_1
end
end
it "sets the external and internal encoding when passed two String arguments" do
IO.pipe("UTF-8", "UTF-16BE") do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should == Encoding::UTF_16BE
end
end
it "accepts an options Hash with one String encoding argument" do
IO.pipe("BOM|UTF-8:ISO-8859-1", invalid: :replace) do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should == Encoding::ISO_8859_1
end
end
it "accepts an options Hash with two String encoding arguments" do
IO.pipe("UTF-8", "ISO-8859-1", invalid: :replace) do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should == Encoding::ISO_8859_1
end
end
it "calls #to_hash to convert an options argument" do
options = mock("io pipe encoding options")
options.should_receive(:to_hash).and_return({ invalid: :replace })
IO.pipe("UTF-8", "ISO-8859-1", **options) { |r, w| }
end
it "calls #to_str to convert the first argument to a String" do
obj = mock("io_pipe_encoding")
obj.should_receive(:to_str).and_return("UTF-8:UTF-16BE")
IO.pipe(obj) do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should == Encoding::UTF_16BE
end
end
it "calls #to_str to convert the second argument to a String" do
obj = mock("io_pipe_encoding")
obj.should_receive(:to_str).at_least(1).times.and_return("UTF-16BE")
IO.pipe(Encoding::UTF_8, obj) do |r, w|
r.external_encoding.should == Encoding::UTF_8
r.internal_encoding.should == Encoding::UTF_16BE
end
end
it "sets no external encoding for the write end" do
IO.pipe(Encoding::UTF_8) do |r, w|
w.external_encoding.should be_nil
end
end
it "sets no internal encoding for the write end" do
IO.pipe(Encoding::UTF_8) do |r, w|
w.external_encoding.should be_nil
end
end
end
|
