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# encoding: utf-8
require 'abstract_unit'
require 'multibyte_test_helpers'
require 'fileutils'
require 'open-uri'
require 'tmpdir'
class Downloader
def self.download(from, to)
unless File.exist?(to)
$stderr.puts "Downloading #{from} to #{to}"
unless File.exist?(File.dirname(to))
system "mkdir -p #{File.dirname(to)}"
end
open(from) do |source|
File.open(to, 'w') do |target|
source.each_line do |l|
target.write l
end
end
end
end
end
end
class MultibyteConformanceTest < ActiveSupport::TestCase
include MultibyteTestHelpers
UNIDATA_URL = "http://www.unicode.org/Public/#{ActiveSupport::Multibyte::Unicode::UNICODE_VERSION}/ucd"
UNIDATA_FILE = '/NormalizationTest.txt'
CACHE_DIR = File.join(Dir.tmpdir, 'cache')
def setup
FileUtils.mkdir_p(CACHE_DIR)
Downloader.download(UNIDATA_URL + UNIDATA_FILE, CACHE_DIR + UNIDATA_FILE)
@proxy = ActiveSupport::Multibyte::Chars
end
def test_normalizations_C
each_line_of_norm_tests do |*cols|
col1, col2, col3, col4, col5, comment = *cols
# CONFORMANCE:
# 1. The following invariants must be true for all conformant implementations
#
# NFC
# c2 == NFC(c1) == NFC(c2) == NFC(c3)
assert_equal_codepoints col2, @proxy.new(col1).normalize(:c), "Form C - Col 2 has to be NFC(1) - #{comment}"
assert_equal_codepoints col2, @proxy.new(col2).normalize(:c), "Form C - Col 2 has to be NFC(2) - #{comment}"
assert_equal_codepoints col2, @proxy.new(col3).normalize(:c), "Form C - Col 2 has to be NFC(3) - #{comment}"
#
# c4 == NFC(c4) == NFC(c5)
assert_equal_codepoints col4, @proxy.new(col4).normalize(:c), "Form C - Col 4 has to be C(4) - #{comment}"
assert_equal_codepoints col4, @proxy.new(col5).normalize(:c), "Form C - Col 4 has to be C(5) - #{comment}"
end
end
def test_normalizations_D
each_line_of_norm_tests do |*cols|
col1, col2, col3, col4, col5, comment = *cols
#
# NFD
# c3 == NFD(c1) == NFD(c2) == NFD(c3)
assert_equal_codepoints col3, @proxy.new(col1).normalize(:d), "Form D - Col 3 has to be NFD(1) - #{comment}"
assert_equal_codepoints col3, @proxy.new(col2).normalize(:d), "Form D - Col 3 has to be NFD(2) - #{comment}"
assert_equal_codepoints col3, @proxy.new(col3).normalize(:d), "Form D - Col 3 has to be NFD(3) - #{comment}"
# c5 == NFD(c4) == NFD(c5)
assert_equal_codepoints col5, @proxy.new(col4).normalize(:d), "Form D - Col 5 has to be NFD(4) - #{comment}"
assert_equal_codepoints col5, @proxy.new(col5).normalize(:d), "Form D - Col 5 has to be NFD(5) - #{comment}"
end
end
def test_normalizations_KC
each_line_of_norm_tests do | *cols |
col1, col2, col3, col4, col5, comment = *cols
#
# NFKC
# c4 == NFKC(c1) == NFKC(c2) == NFKC(c3) == NFKC(c4) == NFKC(c5)
assert_equal_codepoints col4, @proxy.new(col1).normalize(:kc), "Form D - Col 4 has to be NFKC(1) - #{comment}"
assert_equal_codepoints col4, @proxy.new(col2).normalize(:kc), "Form D - Col 4 has to be NFKC(2) - #{comment}"
assert_equal_codepoints col4, @proxy.new(col3).normalize(:kc), "Form D - Col 4 has to be NFKC(3) - #{comment}"
assert_equal_codepoints col4, @proxy.new(col4).normalize(:kc), "Form D - Col 4 has to be NFKC(4) - #{comment}"
assert_equal_codepoints col4, @proxy.new(col5).normalize(:kc), "Form D - Col 4 has to be NFKC(5) - #{comment}"
end
end
def test_normalizations_KD
each_line_of_norm_tests do | *cols |
col1, col2, col3, col4, col5, comment = *cols
#
# NFKD
# c5 == NFKD(c1) == NFKD(c2) == NFKD(c3) == NFKD(c4) == NFKD(c5)
assert_equal_codepoints col5, @proxy.new(col1).normalize(:kd), "Form KD - Col 5 has to be NFKD(1) - #{comment}"
assert_equal_codepoints col5, @proxy.new(col2).normalize(:kd), "Form KD - Col 5 has to be NFKD(2) - #{comment}"
assert_equal_codepoints col5, @proxy.new(col3).normalize(:kd), "Form KD - Col 5 has to be NFKD(3) - #{comment}"
assert_equal_codepoints col5, @proxy.new(col4).normalize(:kd), "Form KD - Col 5 has to be NFKD(4) - #{comment}"
assert_equal_codepoints col5, @proxy.new(col5).normalize(:kd), "Form KD - Col 5 has to be NFKD(5) - #{comment}"
end
end
protected
def each_line_of_norm_tests(&block)
lines = 0
max_test_lines = 0 # Don't limit below 38, because that's the header of the testfile
File.open(File.join(CACHE_DIR, UNIDATA_FILE), 'r') do | f |
until f.eof? || (max_test_lines > 38 and lines > max_test_lines)
lines += 1
line = f.gets.chomp!
next if (line.empty? || line =~ /^\#/)
cols, comment = line.split("#")
cols = cols.split(";").map{|e| e.strip}.reject{|e| e.empty? }
next unless cols.length == 5
# codepoints are in hex in the test suite, pack wants them as integers
cols.map!{|c| c.split.map{|codepoint| codepoint.to_i(16)}.pack("U*") }
cols << comment
yield(*cols)
end
end
end
def inspect_codepoints(str)
str.to_s.unpack("U*").map{|cp| cp.to_s(16) }.join(' ')
end
end
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