mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
350 lines
12 KiB
Ruby
Executable file
350 lines
12 KiB
Ruby
Executable file
# -*- coding: utf-8 -*-
|
|
# frozen_string_literal: false
|
|
|
|
require_relative "helper"
|
|
|
|
class TestCSVEncodings < Test::Unit::TestCase
|
|
extend DifferentOFS
|
|
|
|
def setup
|
|
super
|
|
require 'tempfile'
|
|
@temp_csv_file = Tempfile.new(%w"test_csv. .csv")
|
|
@temp_csv_path = @temp_csv_file.path
|
|
@temp_csv_file.close
|
|
end
|
|
|
|
def teardown
|
|
@temp_csv_file.close!
|
|
super
|
|
end
|
|
|
|
########################################
|
|
### Hand Test Some Popular Encodings ###
|
|
########################################
|
|
|
|
def test_parses_utf8_encoding
|
|
assert_parses( [ %w[ one two … ],
|
|
%w[ 1 … 3 ],
|
|
%w[ … 5 6 ] ], "UTF-8" )
|
|
end
|
|
|
|
def test_parses_latin1_encoding
|
|
assert_parses( [ %w[ one two Résumé ],
|
|
%w[ 1 Résumé 3 ],
|
|
%w[ Résumé 5 6 ] ], "ISO-8859-1" )
|
|
end
|
|
|
|
def test_parses_utf16be_encoding
|
|
assert_parses( [ %w[ one two … ],
|
|
%w[ 1 … 3 ],
|
|
%w[ … 5 6 ] ], "UTF-16BE" )
|
|
end
|
|
|
|
def test_parses_shift_jis_encoding
|
|
assert_parses( [ %w[ 一 二 三 ],
|
|
%w[ 四 五 六 ],
|
|
%w[ 七 八 九 ] ], "Shift_JIS" )
|
|
end
|
|
|
|
###########################################################
|
|
### Try Simple Reading for All Non-dummy Ruby Encodings ###
|
|
###########################################################
|
|
|
|
def test_reading_with_most_encodings
|
|
each_encoding do |encoding|
|
|
begin
|
|
assert_parses( [ %w[ abc def ],
|
|
%w[ ghi jkl ] ], encoding )
|
|
rescue Encoding::ConverterNotFoundError
|
|
fail("Failed to support #{encoding.name}.")
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_regular_expression_escaping
|
|
each_encoding do |encoding|
|
|
begin
|
|
assert_parses( [ %w[ abc def ],
|
|
%w[ ghi jkl ] ], encoding, col_sep: "|" )
|
|
rescue Encoding::ConverterNotFoundError
|
|
fail("Failed to properly escape #{encoding.name}.")
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_read_with_default_encoding
|
|
data = "abc"
|
|
default_external = Encoding.default_external
|
|
each_encoding do |encoding|
|
|
File.open(@temp_csv_path, "wb", encoding: encoding) {|f| f << data}
|
|
begin
|
|
no_warnings do
|
|
Encoding.default_external = encoding
|
|
end
|
|
result = CSV.read(@temp_csv_path)[0][0]
|
|
ensure
|
|
no_warnings do
|
|
Encoding.default_external = default_external
|
|
end
|
|
end
|
|
assert_equal(encoding, result.encoding)
|
|
end
|
|
end
|
|
|
|
#######################################################################
|
|
### Stress Test ASCII Compatible and Non-ASCII Compatible Encodings ###
|
|
#######################################################################
|
|
|
|
def test_auto_line_ending_detection
|
|
# arrange data to place a \r at the end of CSV's read ahead point
|
|
encode_for_tests([["a" * 509]], row_sep: "\r\n") do |data|
|
|
assert_equal("\r\n".encode(data.encoding), CSV.new(data).row_sep)
|
|
end
|
|
end
|
|
|
|
def test_csv_chars_are_transcoded
|
|
encode_for_tests([%w[abc def]]) do |data|
|
|
%w[col_sep row_sep quote_char].each do |csv_char|
|
|
assert_equal( "|".encode(data.encoding),
|
|
CSV.new(data, csv_char.to_sym => "|").send(csv_char) )
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_parser_works_with_encoded_headers
|
|
encode_for_tests([%w[one two three], %w[1 2 3]]) do |data|
|
|
parsed = CSV.parse(data, headers: true)
|
|
assert_all?(parsed.headers, "Wrong data encoding.") {|h| h.encoding == data.encoding}
|
|
parsed.each do |row|
|
|
assert_all?(row.fields, "Wrong data encoding.") {|f| f.encoding == data.encoding}
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_built_in_converters_transcode_to_utf_8_then_convert
|
|
encode_for_tests([%w[one two three], %w[1 2 3]]) do |data|
|
|
parsed = CSV.parse(data, converters: :integer)
|
|
assert_all?(parsed[0], "Wrong data encoding.") {|f| f.encoding == data.encoding}
|
|
assert_equal([1, 2, 3], parsed[1])
|
|
end
|
|
end
|
|
|
|
def test_built_in_header_converters_transcode_to_utf_8_then_convert
|
|
encode_for_tests([%w[one two three], %w[1 2 3]]) do |data|
|
|
parsed = CSV.parse( data, headers: true,
|
|
header_converters: :downcase )
|
|
assert_all?(parsed.headers, "Wrong data encoding.") {|h| h.encoding.name == "UTF-8"}
|
|
assert_all?(parsed[0].fields, "Wrong data encoding.") {|f| f.encoding == data.encoding}
|
|
end
|
|
end
|
|
|
|
def test_open_allows_you_to_set_encodings
|
|
encode_for_tests([%w[abc def]]) do |data|
|
|
# read and write in encoding
|
|
File.open(@temp_csv_path, "wb:#{data.encoding.name}") { |f| f << data }
|
|
CSV.open(@temp_csv_path, "rb:#{data.encoding.name}") do |csv|
|
|
csv.each do |row|
|
|
assert_all?(row, "Wrong data encoding.") {|f| f.encoding == data.encoding}
|
|
end
|
|
end
|
|
|
|
# read and write with transcoding
|
|
File.open(@temp_csv_path, "wb:UTF-32BE:#{data.encoding.name}") do |f|
|
|
f << data
|
|
end
|
|
CSV.open(@temp_csv_path, "rb:UTF-32BE:#{data.encoding.name}") do |csv|
|
|
csv.each do |row|
|
|
assert_all?(row, "Wrong data encoding.") {|f| f.encoding == data.encoding}
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_foreach_allows_you_to_set_encodings
|
|
encode_for_tests([%w[abc def]]) do |data|
|
|
# read and write in encoding
|
|
File.open(@temp_csv_path, "wb", encoding: data.encoding) { |f| f << data }
|
|
CSV.foreach(@temp_csv_path, encoding: data.encoding) do |row|
|
|
row.each {|f| assert_equal(f.encoding, data.encoding)}
|
|
end
|
|
|
|
# read and write with transcoding
|
|
File.open(@temp_csv_path, "wb:UTF-32BE:#{data.encoding.name}") do |f|
|
|
f << data
|
|
end
|
|
CSV.foreach( @temp_csv_path,
|
|
encoding: "UTF-32BE:#{data.encoding.name}" ) do |row|
|
|
assert_all?(row, "Wrong data encoding.") {|f| f.encoding == data.encoding}
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_read_allows_you_to_set_encodings
|
|
encode_for_tests([%w[abc def]]) do |data|
|
|
# read and write in encoding
|
|
File.open(@temp_csv_path, "wb:#{data.encoding.name}") { |f| f << data }
|
|
rows = CSV.read(@temp_csv_path, encoding: data.encoding.name)
|
|
assert_all?(rows.flatten, "Wrong data encoding.") {|f| f.encoding == data.encoding}
|
|
|
|
# read and write with transcoding
|
|
File.open(@temp_csv_path, "wb:UTF-32BE:#{data.encoding.name}") do |f|
|
|
f << data
|
|
end
|
|
rows = CSV.read( @temp_csv_path,
|
|
encoding: "UTF-32BE:#{data.encoding.name}" )
|
|
assert_all?(rows.flatten, "Wrong data encoding.") {|f| f.encoding == data.encoding}
|
|
end
|
|
end
|
|
|
|
#################################
|
|
### Write CSV in any Encoding ###
|
|
#################################
|
|
|
|
def test_can_write_csv_in_any_encoding
|
|
each_encoding do |encoding|
|
|
# test generate_line with encoding hint
|
|
begin
|
|
csv = %w[abc d|ef].map { |f| f.encode(encoding) }.
|
|
to_csv(col_sep: "|", encoding: encoding.name)
|
|
rescue Encoding::ConverterNotFoundError
|
|
next
|
|
end
|
|
assert_equal(encoding, csv.encoding)
|
|
|
|
# test generate_line with encoding guessing from fields
|
|
csv = %w[abc d|ef].map { |f| f.encode(encoding) }.to_csv(col_sep: "|")
|
|
assert_equal(encoding, csv.encoding)
|
|
|
|
# writing to files
|
|
data = encode_ary([%w[abc d,ef], %w[123 456 ]], encoding)
|
|
CSV.open(@temp_csv_path, "wb:#{encoding.name}") do |f|
|
|
data.each { |row| f << row }
|
|
end
|
|
assert_equal(data, CSV.read(@temp_csv_path, encoding: encoding.name))
|
|
end
|
|
end
|
|
|
|
def test_encoding_is_upgraded_during_writing_as_needed
|
|
data = ["foo".force_encoding("US-ASCII"), "\u3042"]
|
|
assert_equal("US-ASCII", data.first.encoding.name)
|
|
assert_equal("UTF-8", data.last.encoding.name)
|
|
assert_equal("UTF-8", data.join('').encoding.name)
|
|
assert_equal("UTF-8", data.to_csv.encoding.name)
|
|
end
|
|
|
|
def test_encoding_is_upgraded_for_ascii_content_during_writing_as_needed
|
|
data = ["foo".force_encoding("ISO-8859-1"), "\u3042"]
|
|
assert_equal("ISO-8859-1", data.first.encoding.name)
|
|
assert_equal("UTF-8", data.last.encoding.name)
|
|
assert_equal("UTF-8", data.join('').encoding.name)
|
|
assert_equal("UTF-8", data.to_csv.encoding.name)
|
|
end
|
|
|
|
def test_explicit_encoding
|
|
bug9766 = '[ruby-core:62113] [Bug #9766]'
|
|
s = CSV.generate(encoding: "Windows-31J") do |csv|
|
|
csv << ["foo".force_encoding("ISO-8859-1"), "\u3042"]
|
|
end
|
|
assert_equal(["foo,\u3042\n".encode(Encoding::Windows_31J), Encoding::Windows_31J], [s, s.encoding], bug9766)
|
|
end
|
|
|
|
def test_row_separator_detection_with_invalid_encoding
|
|
csv = CSV.new("invalid,\xF8\r\nvalid,x\r\n".force_encoding("UTF-8"),
|
|
encoding: "UTF-8")
|
|
assert_equal("\r\n", csv.row_sep)
|
|
end
|
|
|
|
def test_invalid_encoding_row_error
|
|
csv = CSV.new("valid,x\rinvalid,\xF8\r".force_encoding("UTF-8"),
|
|
encoding: "UTF-8", row_sep: "\r")
|
|
error = assert_raise(CSV::MalformedCSVError) do
|
|
csv.shift
|
|
csv.shift
|
|
end
|
|
assert_equal("Invalid byte sequence in UTF-8 in line 2.",
|
|
error.message)
|
|
end
|
|
|
|
private
|
|
|
|
def assert_parses(fields, encoding, **options)
|
|
encoding = Encoding.find(encoding) unless encoding.is_a? Encoding
|
|
orig_fields = fields
|
|
fields = encode_ary(fields, encoding)
|
|
data = ary_to_data(fields, **options)
|
|
parsed = CSV.parse(data, **options)
|
|
assert_equal(fields, parsed)
|
|
parsed.flatten.each_with_index do |field, i|
|
|
assert_equal(encoding, field.encoding, "Field[#{i + 1}] was transcoded.")
|
|
end
|
|
File.open(@temp_csv_path, "wb") {|f| f.print(data)}
|
|
CSV.open(@temp_csv_path, "rb:#{encoding}", **options) do |csv|
|
|
csv.each_with_index do |row, i|
|
|
assert_equal(fields[i], row)
|
|
end
|
|
end
|
|
begin
|
|
CSV.open(@temp_csv_path,
|
|
"rb:#{encoding}:#{__ENCODING__}",
|
|
**options) do |csv|
|
|
csv.each_with_index do |row, i|
|
|
assert_equal(orig_fields[i], row)
|
|
end
|
|
end unless encoding == __ENCODING__
|
|
rescue Encoding::ConverterNotFoundError
|
|
end
|
|
options[:encoding] = encoding.name
|
|
CSV.open(@temp_csv_path, **options) do |csv|
|
|
csv.each_with_index do |row, i|
|
|
assert_equal(fields[i], row)
|
|
end
|
|
end
|
|
options.delete(:encoding)
|
|
options[:external_encoding] = encoding.name
|
|
options[:internal_encoding] = __ENCODING__.name
|
|
begin
|
|
CSV.open(@temp_csv_path, **options) do |csv|
|
|
csv.each_with_index do |row, i|
|
|
assert_equal(orig_fields[i], row)
|
|
end
|
|
end unless encoding == __ENCODING__
|
|
rescue Encoding::ConverterNotFoundError
|
|
end
|
|
end
|
|
|
|
def encode_ary(ary, encoding)
|
|
ary.map { |row| row.map { |field| field.encode(encoding) } }
|
|
end
|
|
|
|
def ary_to_data(ary, **options)
|
|
encoding = ary.flatten.first.encoding
|
|
quote_char = (options[:quote_char] || '"').encode(encoding)
|
|
col_sep = (options[:col_sep] || ",").encode(encoding)
|
|
row_sep = (options[:row_sep] || "\n").encode(encoding)
|
|
ary.map { |row|
|
|
row.map { |field|
|
|
[quote_char, field.encode(encoding), quote_char].join('')
|
|
}.join(col_sep) + row_sep
|
|
}.join('').encode(encoding)
|
|
end
|
|
|
|
def encode_for_tests(data, **options)
|
|
yield ary_to_data(encode_ary(data, "UTF-8"), **options)
|
|
yield ary_to_data(encode_ary(data, "UTF-16BE"), **options)
|
|
end
|
|
|
|
def each_encoding
|
|
Encoding.list.each do |encoding|
|
|
next if encoding.dummy? # skip "dummy" encodings
|
|
yield encoding
|
|
end
|
|
end
|
|
|
|
def no_warnings
|
|
old_verbose, $VERBOSE = $VERBOSE, nil
|
|
yield
|
|
ensure
|
|
$VERBOSE = old_verbose
|
|
end
|
|
end
|