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
|
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
ruby_version_is "1.9" do
describe :io_copy_stream_to_file, :shared => true do
it "copies the entire IO contents to the file" do
IO.copy_stream(@object.from, @to_name)
@to_name.should have_data(@content)
IO.copy_stream(@from_bigfile, @to_name)
@to_name.should have_data(@content_bigfile)
end
it "returns the number of bytes copied" do
IO.copy_stream(@object.from, @to_name).should == @size
IO.copy_stream(@from_bigfile, @to_name).should == @size_bigfile
end
it "copies only length bytes when specified" do
IO.copy_stream(@object.from, @to_name, 8).should == 8
@to_name.should have_data("Line one")
end
it "calls #to_path to convert on object to a file name" do
obj = mock("io_copy_stream_to")
obj.should_receive(:to_path).and_return(@to_name)
IO.copy_stream(@object.from, obj)
@to_name.should have_data(@content)
end
it "raises a TypeError if #to_path does not return a String" do
obj = mock("io_copy_stream_to")
obj.should_receive(:to_path).and_return(1)
lambda { IO.copy_stream(@object.from, obj) }.should raise_error(TypeError)
end
end
describe :io_copy_stream_to_file_with_offset, :shared => true do
it "copies only length bytes from the offset" do
IO.copy_stream(@object.from, @to_name, 8, 4).should == 8
@to_name.should have_data(" one\n\nLi")
end
end
describe :io_copy_stream_to_io, :shared => true do
it "copies the entire IO contents to the IO" do
IO.copy_stream(@object.from, @to_io)
@to_name.should have_data(@content)
IO.copy_stream(@from_bigfile, @to_io)
@to_name.should have_data(@content + @content_bigfile)
end
it "returns the number of bytes copied" do
IO.copy_stream(@object.from, @to_io).should == @size
IO.copy_stream(@from_bigfile, @to_io).should == @size_bigfile
end
it "starts writing at the destination IO's current position" do
@to_io.write("prelude ")
IO.copy_stream(@object.from, @to_io)
@to_name.should have_data("prelude " + @content)
end
it "leaves the destination IO position at the last write" do
IO.copy_stream(@object.from, @to_io)
@to_io.pos.should == @size
end
it "raises an IOError if the destination IO is not open for writing" do
@to_io.close
@to_io = new_io @to_name, "r"
lambda { IO.copy_stream @object.from, @to_io }.should raise_error(IOError)
end
it "does not close the destination IO" do
IO.copy_stream(@object.from, @to_io)
@to_io.closed?.should be_false
end
it "copies only length bytes when specified" do
IO.copy_stream(@object.from, @to_io, 8).should == 8
@to_name.should have_data("Line one")
end
end
describe :io_copy_stream_to_io_with_offset, :shared => true do
it "copies only length bytes from the offset" do
IO.copy_stream(@object.from, @to_io, 8, 4).should == 8
@to_name.should have_data(" one\n\nLi")
end
end
describe "IO.copy_stream" do
before :each do
@from_name = fixture __FILE__, "copy_stream.txt"
@to_name = tmp("io_copy_stream_io_name")
@content = IO.read(@from_name)
@size = @content.size
@from_bigfile = tmp("io_copy_stream_bigfile")
@content_bigfile = "A" * 17_000
touch(@from_bigfile){|f| f.print @content_bigfile }
@size_bigfile = @content_bigfile.size
end
after :each do
rm_r @to_name, @from_bigfile
end
describe "from an IO" do
before :each do
@from_io = new_io @from_name, "rb"
IOSpecs::CopyStream.from = @from_io
end
after :each do
@from_io.close
end
it "raises an IOError if the source IO is not open for reading" do
@from_io.close
@from_io = new_io @from_name, "a"
lambda { IO.copy_stream @from_io, @to_name }.should raise_error(IOError)
end
it "does not close the source IO" do
IO.copy_stream(@from_io, @to_name)
@from_io.closed?.should be_false
end
it "does not change the IO offset when an offset is specified" do
@from_io.pos = 10
IO.copy_stream(@from_io, @to_name, 8, 4)
@from_io.pos.should == 10
end
it "does change the IO offset when an offset is not specified" do
@from_io.pos = 10
IO.copy_stream(@from_io, @to_name)
@from_io.pos.should == 42
end
describe "to a file name" do
it_behaves_like :io_copy_stream_to_file, nil, IOSpecs::CopyStream
it_behaves_like :io_copy_stream_to_file_with_offset, nil, IOSpecs::CopyStream
end
describe "to an IO" do
before :each do
@to_io = new_io @to_name, "wb"
end
after :each do
@to_io.close
end
it_behaves_like :io_copy_stream_to_io, nil, IOSpecs::CopyStream
it_behaves_like :io_copy_stream_to_io_with_offset, nil, IOSpecs::CopyStream
end
end
describe "from a file name" do
before :each do
IOSpecs::CopyStream.from = @from_name
end
it "calls #to_path to convert on object to a file name" do
obj = mock("io_copy_stream_from")
obj.should_receive(:to_path).and_return(@from_name)
IO.copy_stream(obj, @to_name)
@to_name.should have_data(@content)
end
it "raises a TypeError if #to_path does not return a String" do
obj = mock("io_copy_stream_from")
obj.should_receive(:to_path).and_return(1)
lambda { IO.copy_stream(obj, @to_name) }.should raise_error(TypeError)
end
describe "to a file name" do
it_behaves_like :io_copy_stream_to_file, nil, IOSpecs::CopyStream
it_behaves_like :io_copy_stream_to_file_with_offset, nil, IOSpecs::CopyStream
end
describe "to an IO" do
before :each do
@to_io = new_io @to_name, "wb"
end
after :each do
@to_io.close
end
it_behaves_like :io_copy_stream_to_io, nil, IOSpecs::CopyStream
it_behaves_like :io_copy_stream_to_io_with_offset, nil, IOSpecs::CopyStream
end
end
describe "from a pipe IO" do
before :each do
@from_io = IOSpecs.pipe_fixture(@content)
IOSpecs::CopyStream.from = @from_io
end
after :each do
@from_io.close
end
it "does not close the source IO" do
IO.copy_stream(@from_io, @to_name)
@from_io.closed?.should be_false
end
it "raises an error when an offset is specified" do
lambda { IO.copy_stream(@from_io, @to_name, 8, 4) }.should raise_error(Errno::ESPIPE)
end
describe "to a file name" do
it_behaves_like :io_copy_stream_to_file, nil, IOSpecs::CopyStream
end
describe "to an IO" do
before :each do
@to_io = new_io @to_name, "wb"
end
after :each do
@to_io.close
end
it_behaves_like :io_copy_stream_to_io, nil, IOSpecs::CopyStream
end
end
describe "with non-IO Objects" do
before do
@io = new_io @from_name, "rb"
end
after do
@io.close unless @io.closed?
end
it "calls #readpartial on the source Object if defined" do
from = IOSpecs::CopyStreamReadPartial.new @io
IO.copy_stream(from, @to_name)
@to_name.should have_data(@content)
end
it "calls #read on the source Object" do
from = IOSpecs::CopyStreamRead.new @io
IO.copy_stream(from, @to_name)
@to_name.should have_data(@content)
end
it "calls #write on the destination Object" do
to = mock("io_copy_stream_to_object")
to.should_receive(:write).with(@content).and_return(@content.size)
IO.copy_stream(@from_name, to)
end
end
end
end
|
