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
|
# frozen_string_literal: true
require_relative 'test_helper'
class ZipCentralDirectoryEntryTest < Minitest::Test
def test_read_from_stream
File.open('test/data/testDirectory.bin', 'rb') do |file|
entry = ::Zip::Entry.read_c_dir_entry(file)
assert_equal('longAscii.txt', entry.name)
assert_equal(::Zip::Entry::DEFLATED, entry.compression_method)
assert_equal(106_490, entry.size)
assert_equal(3784, entry.compressed_size)
assert_equal(0xfcd1799c, entry.crc)
assert_equal('', entry.comment)
entry = ::Zip::Entry.read_c_dir_entry(file)
assert_equal('empty.txt', entry.name)
assert_equal(::Zip::Entry::STORED, entry.compression_method)
assert_equal(0, entry.size)
assert_equal(0, entry.compressed_size)
assert_equal(0x0, entry.crc)
assert_equal('', entry.comment)
entry = ::Zip::Entry.read_c_dir_entry(file)
assert_equal('short.txt', entry.name)
assert_equal(::Zip::Entry::STORED, entry.compression_method)
assert_equal(6, entry.size)
assert_equal(6, entry.compressed_size)
assert_equal(0xbb76fe69, entry.crc)
assert_equal('', entry.comment)
entry = ::Zip::Entry.read_c_dir_entry(file)
assert_equal('longBinary.bin', entry.name)
assert_equal(::Zip::Entry::DEFLATED, entry.compression_method)
assert_equal(1_000_024, entry.size)
assert_equal(70_847, entry.compressed_size)
assert_equal(0x10da7d59, entry.crc)
assert_equal('', entry.comment)
entry = ::Zip::Entry.read_c_dir_entry(file)
assert_nil(entry)
# Fields that are not check by this test:
# version made by 2 bytes
# version needed to extract 2 bytes
# general purpose bit flag 2 bytes
# last mod file time 2 bytes
# last mod file date 2 bytes
# compressed size 4 bytes
# uncompressed size 4 bytes
# disk number start 2 bytes
# internal file attributes 2 bytes
# external file attributes 4 bytes
# relative offset of local header 4 bytes
# file name (variable size)
# extra field (variable size)
# file comment (variable size)
end
end
def test_read_entry_from_truncated_zip_file_raises_error
File.open('test/data/testDirectory.bin') do |f|
# cdir entry header is at least 46 bytes, so just read a bit.
fragment = f.read(12)
assert_raises(::Zip::Error) do
entry = ::Zip::Entry.new
entry.read_c_dir_entry(StringIO.new(fragment))
end
end
end
def test_read_entry_from_truncated_zip_file_returns_nil
File.open('test/data/testDirectory.bin') do |f|
# cdir entry header is at least 46 bytes, so just read a bit.
fragment = f.read(12)
assert_nil(::Zip::Entry.read_c_dir_entry(StringIO.new(fragment)))
end
end
def test_read_corrupted_entry_raises_error
fragment = File.binread('test/data/testDirectory.bin')
fragment.slice!(12)
io = StringIO.new(fragment)
assert_raises(::Zip::Error) do
entry = ::Zip::Entry.new
entry.read_c_dir_entry(io)
# First entry will be read but break later entries.
entry.read_c_dir_entry(io)
end
end
def test_read_corrupted_entry_returns_nil
fragment = File.binread('test/data/testDirectory.bin')
fragment.slice!(12)
io = StringIO.new(fragment)
refute_nil(::Zip::Entry.read_c_dir_entry(io))
# First entry will be read but break later entries.
assert_nil(::Zip::Entry.read_c_dir_entry(io))
end
end
|
