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
|
#!/usr/bin/env ruby -w
# encoding: UTF-8
# tc_csv_parsing.rb
#
# Created by James Edward Gray II on 2005-10-31.
# Copyright 2005 James Edward Gray II. You can redistribute or modify this code
# under the terms of Ruby's license.
require "timeout"
require_relative "base"
#
# Following tests are my interpretation of the
# {CSV RCF}[http://www.ietf.org/rfc/rfc4180.txt]. I only deviate from that
# document in one place (intentionally) and that is to make the default row
# separator <tt>$/</tt>.
#
class TestCSV::Parsing < TestCSV
extend DifferentOFS
BIG_DATA = "123456789\n" * 1024
def test_mastering_regex_example
ex = %Q{Ten Thousand,10000, 2710 ,,"10,000","It's ""10 Grand"", baby",10K}
assert_equal( [ "Ten Thousand", "10000", " 2710 ", nil, "10,000",
"It's \"10 Grand\", baby", "10K" ],
CSV.parse_line(ex) )
end
# Old Ruby 1.8 CSV library tests.
def test_std_lib_csv
[ ["\t", ["\t"]],
["foo,\"\"\"\"\"\",baz", ["foo", "\"\"", "baz"]],
["foo,\"\"\"bar\"\"\",baz", ["foo", "\"bar\"", "baz"]],
["\"\"\"\n\",\"\"\"\n\"", ["\"\n", "\"\n"]],
["foo,\"\r\n\",baz", ["foo", "\r\n", "baz"]],
["\"\"", [""]],
["foo,\"\"\"\",baz", ["foo", "\"", "baz"]],
["foo,\"\r.\n\",baz", ["foo", "\r.\n", "baz"]],
["foo,\"\r\",baz", ["foo", "\r", "baz"]],
["foo,\"\",baz", ["foo", "", "baz"]],
["\",\"", [","]],
["foo", ["foo"]],
[",,", [nil, nil, nil]],
[",", [nil, nil]],
["foo,\"\n\",baz", ["foo", "\n", "baz"]],
["foo,,baz", ["foo", nil, "baz"]],
["\"\"\"\r\",\"\"\"\r\"", ["\"\r", "\"\r"]],
["\",\",\",\"", [",", ","]],
["foo,bar,", ["foo", "bar", nil]],
[",foo,bar", [nil, "foo", "bar"]],
["foo,bar", ["foo", "bar"]],
[";", [";"]],
["\t,\t", ["\t", "\t"]],
["foo,\"\r\n\r\",baz", ["foo", "\r\n\r", "baz"]],
["foo,\"\r\n\n\",baz", ["foo", "\r\n\n", "baz"]],
["foo,\"foo,bar\",baz", ["foo", "foo,bar", "baz"]],
[";,;", [";", ";"]] ].each do |csv_test|
assert_equal(csv_test.last, CSV.parse_line(csv_test.first))
end
[ ["foo,\"\"\"\"\"\",baz", ["foo", "\"\"", "baz"]],
["foo,\"\"\"bar\"\"\",baz", ["foo", "\"bar\"", "baz"]],
["foo,\"\r\n\",baz", ["foo", "\r\n", "baz"]],
["\"\"", [""]],
["foo,\"\"\"\",baz", ["foo", "\"", "baz"]],
["foo,\"\r.\n\",baz", ["foo", "\r.\n", "baz"]],
["foo,\"\r\",baz", ["foo", "\r", "baz"]],
["foo,\"\",baz", ["foo", "", "baz"]],
["foo", ["foo"]],
[",,", [nil, nil, nil]],
[",", [nil, nil]],
["foo,\"\n\",baz", ["foo", "\n", "baz"]],
["foo,,baz", ["foo", nil, "baz"]],
["foo,bar", ["foo", "bar"]],
["foo,\"\r\n\n\",baz", ["foo", "\r\n\n", "baz"]],
["foo,\"foo,bar\",baz", ["foo", "foo,bar", "baz"]] ].each do |csv_test|
assert_equal(csv_test.last, CSV.parse_line(csv_test.first))
end
end
# From: http://ruby-talk.org/cgi-bin/scat.rb/ruby/ruby-core/6496
def test_aras_edge_cases
[ [%Q{a,b}, ["a", "b"]],
[%Q{a,"""b"""}, ["a", "\"b\""]],
[%Q{a,"""b"}, ["a", "\"b"]],
[%Q{a,"b"""}, ["a", "b\""]],
[%Q{a,"\nb"""}, ["a", "\nb\""]],
[%Q{a,"""\nb"}, ["a", "\"\nb"]],
[%Q{a,"""\nb\n"""}, ["a", "\"\nb\n\""]],
[%Q{a,"""\nb\n""",\nc}, ["a", "\"\nb\n\"", nil]],
[%Q{a,,,}, ["a", nil, nil, nil]],
[%Q{,}, [nil, nil]],
[%Q{"",""}, ["", ""]],
[%Q{""""}, ["\""]],
[%Q{"""",""}, ["\"",""]],
[%Q{,""}, [nil,""]],
[%Q{,"\r"}, [nil,"\r"]],
[%Q{"\r\n,"}, ["\r\n,"]],
[%Q{"\r\n,",}, ["\r\n,", nil]] ].each do |edge_case|
assert_equal(edge_case.last, CSV.parse_line(edge_case.first))
end
end
def test_james_edge_cases
# A read at eof? should return nil.
assert_equal(nil, CSV.parse_line(""))
#
# With Ruby 1.8 CSV it's impossible to tell an empty line from a line
# containing a single +nil+ field. The old CSV library returns
# <tt>[nil]</tt> in these cases, but <tt>Array.new</tt> makes more sense to
# me.
#
assert_equal(Array.new, CSV.parse_line("\n1,2,3\n"))
end
def test_rob_edge_cases
[ [%Q{"a\nb"}, ["a\nb"]],
[%Q{"\n\n\n"}, ["\n\n\n"]],
[%Q{a,"b\n\nc"}, ['a', "b\n\nc"]],
[%Q{,"\r\n"}, [nil,"\r\n"]],
[%Q{,"\r\n."}, [nil,"\r\n."]],
[%Q{"a\na","one newline"}, ["a\na", 'one newline']],
[%Q{"a\n\na","two newlines"}, ["a\n\na", 'two newlines']],
[%Q{"a\r\na","one CRLF"}, ["a\r\na", 'one CRLF']],
[%Q{"a\r\n\r\na","two CRLFs"}, ["a\r\n\r\na", 'two CRLFs']],
[%Q{with blank,"start\n\nfinish"\n}, ['with blank', "start\n\nfinish"]],
].each do |edge_case|
assert_equal(edge_case.last, CSV.parse_line(edge_case.first))
end
end
def test_non_regex_edge_cases
# An early version of the non-regex parser fails this test
[ [ "foo,\"foo,bar,baz,foo\",\"foo\"",
["foo", "foo,bar,baz,foo", "foo"] ] ].each do |edge_case|
assert_equal(edge_case.last, CSV.parse_line(edge_case.first))
end
assert_raise(CSV::MalformedCSVError) do
CSV.parse_line("1,\"23\"4\"5\", 6")
end
end
def test_malformed_csv
assert_raise(CSV::MalformedCSVError) do
CSV.parse_line("1,2\r,3", row_sep: "\n")
end
bad_data = <<-END_DATA.gsub(/^ +/, "")
line,1,abc
line,2,"def\nghi"
line,4,some\rjunk
line,5,jkl
END_DATA
lines = bad_data.lines.to_a
assert_equal(6, lines.size)
assert_match(/\Aline,4/, lines.find { |l| l =~ /some\rjunk/ })
csv = CSV.new(bad_data)
begin
loop do
assert_not_nil(csv.shift)
assert_send([csv.lineno, :<, 4])
end
rescue CSV::MalformedCSVError
assert_equal( "Unquoted fields do not allow \\r or \\n (line 4).",
$!.message )
end
assert_raise(CSV::MalformedCSVError) { CSV.parse_line('1,2,"3...') }
bad_data = <<-END_DATA.gsub(/^ +/, "")
line,1,abc
line,2,"def\nghi"
line,4,8'10"
line,5,jkl
END_DATA
lines = bad_data.lines.to_a
assert_equal(6, lines.size)
assert_match(/\Aline,4/, lines.find { |l| l =~ /8'10"/ })
csv = CSV.new(bad_data)
begin
loop do
assert_not_nil(csv.shift)
assert_send([csv.lineno, :<, 4])
end
rescue CSV::MalformedCSVError
assert_equal("Illegal quoting in line 4.", $!.message)
end
end
def test_the_parse_fails_fast_when_it_can_for_unquoted_fields
assert_parse_errors_out('valid,fields,bad start"' + BIG_DATA)
end
def test_the_parse_fails_fast_when_it_can_for_unescaped_quotes
assert_parse_errors_out('valid,fields,"bad start"unescaped' + BIG_DATA)
end
def test_field_size_limit_controls_lookahead
assert_parse_errors_out( 'valid,fields,"' + BIG_DATA + '"',
field_size_limit: 2048 )
end
private
def assert_parse_errors_out(*args)
assert_raise(CSV::MalformedCSVError) do
Timeout.timeout(0.2) do
CSV.parse(*args)
fail("Parse didn't error out")
end
end
end
end
|
