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
|
require "../../spec_helper"
require "compress/gzip"
private SAMPLE_TIME = Time.utc(2016, 1, 2)
private SAMPLE_OS = 4_u8
private SAMPLE_EXTRA = Bytes[1, 2, 3]
private SAMPLE_NAME = "foo.txt"
private SAMPLE_COMMENT = "some comment"
private SAMPLE_CONTENTS = "hello world\nfoo bar"
private def new_sample_io
io = IO::Memory.new
Compress::Gzip::Writer.open(io) do |gzip|
header = gzip.header
header.modification_time = SAMPLE_TIME
header.os = SAMPLE_OS
header.extra = SAMPLE_EXTRA
header.name = SAMPLE_NAME
header.comment = SAMPLE_COMMENT
io.bytesize.should eq(0)
gzip.flush
io.bytesize.should_not eq(0)
gzip.print SAMPLE_CONTENTS
end
io.rewind
end
describe Compress::Gzip do
it "writes and reads to memory" do
io = new_sample_io
Compress::Gzip::Reader.open(io) do |gzip|
header = gzip.header.not_nil!
header.modification_time.should eq(SAMPLE_TIME)
header.os.should eq(SAMPLE_OS)
header.extra.should eq(SAMPLE_EXTRA)
header.name.should eq(SAMPLE_NAME)
header.comment.should eq(SAMPLE_COMMENT)
# Reading zero bytes is OK
gzip.read(Bytes.empty).should eq(0)
gzip.gets_to_end.should eq(SAMPLE_CONTENTS)
end
end
it "rewinds" do
io = new_sample_io
gzip = Compress::Gzip::Reader.new(io)
gzip.gets.should eq(SAMPLE_CONTENTS.lines.first)
gzip.rewind
gzip.gets_to_end.should eq(SAMPLE_CONTENTS)
end
it "reads file with extra fields from file system" do
File.open(datapath("test.gz")) do |file|
Compress::Gzip::Reader.open(file) do |gzip|
header = gzip.header.not_nil!
header.modification_time.to_utc.should eq(Time.utc(2012, 9, 4, 22, 6, 5))
header.os.should eq(3_u8)
header.extra.should eq(Bytes[1, 2, 3, 4, 5])
header.name.should eq("test.txt")
header.comment.should eq("happy birthday")
gzip.gets_to_end.should eq("One\nTwo")
end
end
end
it "writes and reads file with extra fields" do
io = IO::Memory.new
Compress::Gzip::Writer.open(io) do |gzip|
header = gzip.header
header.modification_time = Time.utc(2012, 9, 4, 22, 6, 5)
header.os = 3_u8
header.extra = Bytes[1, 2, 3, 4, 5]
header.name = "test.txt"
header.comment = "happy birthday"
gzip << "One\nTwo"
end
io.rewind
Compress::Gzip::Reader.open(io) do |gzip|
header = gzip.header.not_nil!
header.modification_time.to_utc.should eq(Time.utc(2012, 9, 4, 22, 6, 5))
header.os.should eq(3_u8)
header.extra.should eq(Bytes[1, 2, 3, 4, 5])
header.name.should eq("test.txt")
header.comment.should eq("happy birthday")
gzip.gets_to_end.should eq("One\nTwo")
end
end
end
|
