blob: b4850df437e3515ea88f1864eb03b0e133e5388c (
plain)
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
|
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "IO#eof?" do
before :each do
@name = tmp("empty.txt")
touch @name
end
after :each do
rm_r @name
end
it "returns true on an empty stream that has just been opened" do
File.open(@name) { |empty| empty.should.eof? }
end
it "raises IOError on stream not opened for reading" do
-> do
File.open(@name, "w") { |f| f.eof? }
end.should raise_error(IOError)
end
end
describe "IO#eof?" do
before :each do
@name = fixture __FILE__, "lines.txt"
@io = IOSpecs.io_fixture "lines.txt"
end
after :each do
@io.close if @io && [email protected]?
end
it "returns false when not at end of file" do
@io.read 1
@io.should_not.eof?
end
it "returns true after reading with read with no parameters" do
@io.read()
@io.should.eof?
end
it "returns true after reading with read" do
@io.read(File.size(@name))
@io.should.eof?
end
it "returns true after reading with sysread" do
@io.sysread(File.size(@name))
@io.should.eof?
end
it "returns true after reading with readlines" do
@io.readlines
@io.should.eof?
end
it "returns false on just opened non-empty stream" do
@io.should_not.eof?
end
it "does not consume the data from the stream" do
@io.should_not.eof?
@io.getc.should == 'V'
end
it "raises IOError on closed stream" do
-> { IOSpecs.closed_io.eof? }.should raise_error(IOError)
end
it "raises IOError on stream closed for reading by close_read" do
@io.close_read
-> { @io.eof? }.should raise_error(IOError)
end
it "returns true on one-byte stream after single-byte read" do
File.open(__dir__ + '/fixtures/one_byte.txt') { |one_byte|
one_byte.read(1)
one_byte.should.eof?
}
end
end
describe "IO#eof?" do
after :each do
@r.close if @r && [email protected]?
@w.close if @w && [email protected]?
end
it "returns true on receiving side of Pipe when writing side is closed" do
@r, @w = IO.pipe
@w.close
@r.should.eof?
end
it "returns false on receiving side of Pipe when writing side wrote some data" do
@r, @w = IO.pipe
@w.puts "hello"
@r.should_not.eof?
@w.close
@r.should_not.eof?
@r.read
@r.should.eof?
end
end
|
