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# frozen_string_literal: true
# Copyright © 2018 Martin J. Dürst (duerst@it.aoyama.ac.jp)
require "test/unit"
class BreakTest
attr_reader :string, :comment, :filename, :line_number, :type, :shortname
def initialize (filename, line_number, data, comment='')
@filename = filename
@line_number = line_number
@comment = comment.gsub(/\s+/, ' ').strip
if filename=='emoji-test'
codes, @type = data.split(/\s*;\s*/)
@shortname = ''
else
codes, @type, @shortname = data.split(/\s*;\s*/)
end
@type = @type.gsub(/\s+/, ' ').strip
@shortname = @shortname.gsub(/\s+/, ' ').strip
@string = codes.split(/\s+/)
.map do |ch|
c = ch.to_i(16)
# eliminate cases with surrogates
# raise ArgumentError if 0xD800 <= c and c <= 0xDFFF
c.chr('UTF-8')
end.join
raise ArgumentError if data.match? /genie/ or comment.match? /genie/
raise ArgumentError if data.match? /zombie/ or comment.match? /zombie/
raise ArgumentError if data.match? /wrestling/ or comment.match? /wrestling/
end
end
class TestEmojiBreaks < Test::Unit::TestCase
EMOJI_DATA_FILES = %w[emoji-sequences emoji-test emoji-variation-sequences emoji-zwj-sequences]
EMOJI_VERSION = '5.0' # hard-coded, should be replaced by
# RbConfig::CONFIG['UNICODE_EMOJI_VERSION'] or so, see feature #15341
EMOJI_DATA_PATH = File.expand_path("../../../enc/unicode/data/emoji/#{EMOJI_VERSION}", __dir__)
def self.expand_filename(basename)
File.expand_path("#{EMOJI_DATA_PATH}/#{basename}.txt", __dir__)
end
def self.data_files_available?
EMOJI_DATA_FILES.all? do |f|
File.exist?(expand_filename(f))
end
end
def test_data_files_available
unless TestEmojiBreaks.data_files_available?
skip "Emoji data files not available in #{EMOJI_DATA_PATH}."
end
end
end
TestEmojiBreaks.data_files_available? and class TestEmojiBreaks
def read_data
tests = []
EMOJI_DATA_FILES.each do |filename|
version_mismatch = true
file_tests = []
IO.foreach(TestEmojiBreaks.expand_filename(filename), encoding: Encoding::UTF_8) do |line|
line.chomp!
raise "File Name Mismatch" if $.==1 and not line=="# #{filename}.txt"
version_mismatch = false if line=="# Version: #{EMOJI_VERSION}"
next if /\A(#|\z)/.match? line
file_tests << BreakTest.new(filename, $., *line.split('#')) rescue 'whatever'
end
raise "File Version Mismatch" if version_mismatch
tests += file_tests
end
tests
end
def all_tests
@@tests ||= read_data
rescue Errno::ENOENT
@@tests ||= []
end
def test_single_emoji
all_tests.each do |test|
expected = [test.string]
actual = test.string.each_grapheme_cluster.to_a
assert_equal expected, actual,
"file: #{test.filename}, line #{test.line_number}, " +
"type: #{test.type}, shortname: #{test.shortname}, comment: #{test.comment}"
end
end
def test_embedded_emoji
all_tests.each do |test|
expected = ["A", test.string, "Z"]
actual = "A#{test.string}Z".each_grapheme_cluster.to_a
assert_equal expected, actual,
"file: #{test.filename}, line #{test.line_number}, " +
"type: #{test.type}, shortname: #{test.shortname}, comment: #{test.comment}"
end
end
# test some pseodorandom combinations of emoji
def test_mixed_emoji
srand 0
length = all_tests.length
step = 503 # use a prime number
all_tests.each do |test1|
start = rand step
start.step(by: step, to: length-1) do |t2|
test2 = all_tests[t2]
expected = [test1.string, test2.string]
actual = (test1.string+test2.string).each_grapheme_cluster.to_a
assert_equal expected, actual,
"file1: #{test1.filename}, line1 #{test1.line_number}, " +
"file2: #{test2.filename}, line2 #{test2.line_number},\n" +
"type1: #{test1.type}, shortname1: #{test1.shortname}, comment1: #{test1.comment},\n" +
"type2: #{test2.type}, shortname2: #{test2.shortname}, comment2: #{test2.comment}"
end
end
end
end
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