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json_encoding_test.rb
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# frozen_string_literal: true
require_relative 'test_helper'
class JSONEncodingTest < Test::Unit::TestCase
include JSON
def setup
@utf_8 = '"© ≠ €!"'
@ascii_8bit = @utf_8.b
@parsed = "© ≠ €!"
@generated = '"\u00a9 \u2260 \u20ac!"'
@utf_16_data = @parsed.encode(Encoding::UTF_16BE, Encoding::UTF_8)
@utf_16be = @utf_8.encode(Encoding::UTF_16BE, Encoding::UTF_8)
@utf_16le = @utf_8.encode(Encoding::UTF_16LE, Encoding::UTF_8)
@utf_32be = @utf_8.encode(Encoding::UTF_32BE, Encoding::UTF_8)
@utf_32le = @utf_8.encode(Encoding::UTF_32LE, Encoding::UTF_8)
end
def test_parse
assert_equal @parsed, JSON.parse(@ascii_8bit)
assert_equal @parsed, JSON.parse(@utf_8)
assert_equal @parsed, JSON.parse(@utf_16be)
assert_equal @parsed, JSON.parse(@utf_16le)
assert_equal @parsed, JSON.parse(@utf_32be)
assert_equal @parsed, JSON.parse(@utf_32le)
end
def test_generate
assert_equal @generated, JSON.generate(@parsed, ascii_only: true)
assert_equal @generated, JSON.generate(@utf_16_data, ascii_only: true)
end
def test_unicode
assert_equal '""', ''.to_json
assert_equal '"\\b"', "\b".to_json
assert_equal '"\u0001"', 0x1.chr.to_json
assert_equal '"\u001f"', 0x1f.chr.to_json
assert_equal '" "', ' '.to_json
assert_equal "\"#{0x7f.chr}\"", 0x7f.chr.to_json
utf8 = [ "© ≠ €! \01" ]
json = '["© ≠ €! \u0001"]'
assert_equal json, utf8.to_json(ascii_only: false)
assert_equal utf8, parse(json)
json = '["\u00a9 \u2260 \u20ac! \u0001"]'
assert_equal json, utf8.to_json(ascii_only: true)
assert_equal utf8, parse(json)
utf8 = ["\343\201\202\343\201\204\343\201\206\343\201\210\343\201\212"]
json = "[\"\343\201\202\343\201\204\343\201\206\343\201\210\343\201\212\"]"
assert_equal utf8, parse(json)
assert_equal json, utf8.to_json(ascii_only: false)
utf8 = ["\343\201\202\343\201\204\343\201\206\343\201\210\343\201\212"]
assert_equal utf8, parse(json)
json = "[\"\\u3042\\u3044\\u3046\\u3048\\u304a\"]"
assert_equal json, utf8.to_json(ascii_only: true)
assert_equal utf8, parse(json)
utf8 = ['საქართველო']
json = '["საქართველო"]'
assert_equal json, utf8.to_json(ascii_only: false)
json = "[\"\\u10e1\\u10d0\\u10e5\\u10d0\\u10e0\\u10d7\\u10d5\\u10d4\\u10da\\u10dd\"]"
assert_equal json, utf8.to_json(ascii_only: true)
assert_equal utf8, parse(json)
assert_equal '["Ã"]', generate(["Ã"], ascii_only: false)
assert_equal '["\\u00c3"]', generate(["Ã"], ascii_only: true)
assert_equal ["€"], parse('["\u20ac"]')
utf8 = ["\xf0\xa0\x80\x81"]
json = "[\"\xf0\xa0\x80\x81\"]"
assert_equal json, generate(utf8, ascii_only: false)
assert_equal utf8, parse(json)
json = '["\ud840\udc01"]'
assert_equal json, generate(utf8, ascii_only: true)
assert_equal utf8, parse(json)
assert_raise(JSON::ParserError) { parse('"\u"') }
assert_raise(JSON::ParserError) { parse('"\ud800"') }
end
def test_chars
(0..0x7f).each do |i|
json = '"\u%04x"' % i
i = i.chr
assert_equal i, parse(json)[0]
if i == ?\b
generated = generate(i)
assert '"\b"' == generated || '"\10"' == generated
elsif [?\n, ?\r, ?\t, ?\f].include?(i)
assert_equal i.dump, generate(i)
elsif i.chr < 0x20.chr
assert_equal json, generate(i)
end
end
assert_raise(JSON::GeneratorError) do
generate(["\x80"], ascii_only: true)
end
assert_equal "\302\200", parse('"\u0080"')
end
end