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
|
# -*- encoding: binary -*-
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "IO#readpartial" do
before :each do
@rd, @wr = IO.pipe
@rd.binmode
@wr.binmode
end
after :each do
@rd.close unless @rd.closed?
@wr.close unless @wr.closed?
end
it "raises IOError on closed stream" do
-> { IOSpecs.closed_io.readpartial(10) }.should raise_error(IOError)
@rd.close
-> { @rd.readpartial(10) }.should raise_error(IOError)
end
it "reads at most the specified number of bytes" do
@wr.write("foobar")
# buffered read
@rd.read(1).should == 'f'
# return only specified number, not the whole buffer
@rd.readpartial(1).should == "o"
end
it "reads after ungetc with data in the buffer" do
@wr.write("foobar")
c = @rd.getc
@rd.ungetc(c)
@rd.readpartial(3).should == "foo"
@rd.readpartial(3).should == "bar"
end
it "reads after ungetc with multibyte characters in the buffer" do
@wr.write("∂φ/∂x = gaîté")
c = @rd.getc
@rd.ungetc(c)
@rd.readpartial(3).should == "\xE2\x88\x82"
@rd.readpartial(3).should == "\xCF\x86/"
end
it "reads after ungetc without data in the buffer" do
@wr.write("f")
c = @rd.getc
@rd.ungetc(c)
@rd.readpartial(2).should == "f"
# now, also check that the ungot char is cleared and
# not returned again
@wr.write("b")
@rd.readpartial(2).should == "b"
end
it "discards the existing buffer content upon successful read" do
buffer = "existing content"
@wr.write("hello world")
@wr.close
@rd.readpartial(11, buffer)
buffer.should == "hello world"
end
it "raises EOFError on EOF" do
@wr.write("abc")
@wr.close
@rd.readpartial(10).should == 'abc'
-> { @rd.readpartial(10) }.should raise_error(EOFError)
end
it "discards the existing buffer content upon error" do
buffer = 'hello'
@wr.close
-> { @rd.readpartial(1, buffer) }.should raise_error(EOFError)
buffer.should be_empty
end
it "raises IOError if the stream is closed" do
@wr.close
-> { @rd.readpartial(1) }.should raise_error(IOError)
end
it "raises ArgumentError if the negative argument is provided" do
-> { @rd.readpartial(-1) }.should raise_error(ArgumentError)
end
it "immediately returns an empty string if the length argument is 0" do
@rd.readpartial(0).should == ""
end
ruby_bug "#18421", ""..."3.0.4" do
it "clears and returns the given buffer if the length argument is 0" do
buffer = "existing content"
@rd.readpartial(0, buffer).should == buffer
buffer.should == ""
end
end
it "preserves the encoding of the given buffer" do
buffer = ''.encode(Encoding::ISO_8859_1)
@wr.write("abc")
@wr.close
@rd.readpartial(10, buffer)
buffer.encoding.should == Encoding::ISO_8859_1
end
end
|
