// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022 // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #include "td/telegram/MessageEntity.h" #include "td/utils/algorithm.h" #include "td/utils/common.h" #include "td/utils/format.h" #include "td/utils/logging.h" #include "td/utils/misc.h" #include "td/utils/Random.h" #include "td/utils/Slice.h" #include "td/utils/SliceBuilder.h" #include "td/utils/tests.h" #include "td/utils/utf8.h" #include #include static void check_mention(const td::string &str, const td::vector &expected) { auto result_slice = td::find_mentions(str); td::vector result; for (auto &it : result_slice) { result.push_back(it.str()); } if (result != expected) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result)) << td::tag("expected", td::format::as_array(expected)); } } TEST(MessageEntities, mention) { check_mention("@mention", {"@mention"}); check_mention("@mention ", {"@mention"}); check_mention(" @mention", {"@mention"}); check_mention(" @mention ", {"@mention"}); check_mention("@abc @xyz @abc @xyz @xxx@yyy @ttt", {}); check_mention("@abcde @xyzxy @abcde @xyzxy @xxxxx@yyyyy @ttttt", {"@abcde", "@xyzxy", "@abcde", "@xyzxy", "@xxxxx", "@ttttt"}); check_mention("no@mention", {}); check_mention("@n", {}); check_mention("@abcdefghijklmnopqrstuvwxyz123456", {"@abcdefghijklmnopqrstuvwxyz123456"}); check_mention("@abcdefghijklmnopqrstuvwxyz1234567", {}); check_mention("нет@mention", {}); check_mention( "@ya @gif @wiki @vid @bing @pic @bold @imdb @ImDb @coub @like @vote @giff @cap ya cap @y @yar @bingg @bin", {"@gif", "@wiki", "@vid", "@bing", "@pic", "@bold", "@imdb", "@ImDb", "@coub", "@like", "@vote", "@bingg"}); } static void check_bot_command(const td::string &str, const td::vector &expected) { auto result_slice = td::find_bot_commands(str); td::vector result; for (auto &it : result_slice) { result.push_back(it.str()); } if (result != expected) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result)) << td::tag("expected", td::format::as_array(expected)); } } TEST(MessageEntities, bot_command) { // 1..64@3..32 check_bot_command("/abc", {"/abc"}); check_bot_command(" /abc", {"/abc"}); check_bot_command("/abc ", {"/abc"}); check_bot_command(" /abc ", {"/abc"}); check_bot_command("/a@abc", {"/a@abc"}); check_bot_command("/a@b", {}); check_bot_command("/@bfdsa", {}); check_bot_command("/test/", {}); } static void check_hashtag(const td::string &str, const td::vector &expected) { auto result_slice = td::find_hashtags(str); td::vector result; for (auto &it : result_slice) { result.push_back(it.str()); } if (result != expected) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result)) << td::tag("expected", td::format::as_array(expected)); } } TEST(MessageEntities, hashtag) { check_hashtag("", {}); check_hashtag("#", {}); check_hashtag("##", {}); check_hashtag("###", {}); check_hashtag("#a", {"#a"}); check_hashtag(" #a", {"#a"}); check_hashtag("#a ", {"#a"}); check_hashtag(" #я ", {"#я"}); check_hashtag(" я#a ", {}); check_hashtag(" #a# ", {}); check_hashtag(" #123 ", {}); check_hashtag(" #123a ", {"#123a"}); check_hashtag(" #a123 ", {"#a123"}); check_hashtag(" #123a# ", {}); check_hashtag(" #" + td::string(300, '1'), {}); check_hashtag(" #" + td::string(256, '1'), {}); check_hashtag(" #" + td::string(256, '1') + "a ", {}); check_hashtag(" #" + td::string(255, '1') + "a", {"#" + td::string(255, '1') + "a"}); check_hashtag(" #" + td::string(255, '1') + "Я", {"#" + td::string(255, '1') + "Я"}); check_hashtag(" #" + td::string(255, '1') + "a" + td::string(255, 'b') + "# ", {}); check_hashtag("#a#b #c #d", {"#c", "#d"}); check_hashtag("#test", {"#test"}); check_hashtag("#te·st", {"#te·st"}); check_hashtag(u8"\U0001F604\U0001F604\U0001F604\U0001F604 \U0001F604\U0001F604\U0001F604#" + td::string(200, '1') + "ООО" + td::string(200, '2'), {"#" + td::string(200, '1') + "ООО" + td::string(53, '2')}); check_hashtag(u8"#a\u2122", {"#a"}); } static void check_cashtag(const td::string &str, const td::vector &expected) { auto result_slice = td::find_cashtags(str); td::vector result; for (auto &it : result_slice) { result.push_back(it.str()); } if (result != expected) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result)) << td::tag("expected", td::format::as_array(expected)); } } TEST(MessageEntities, cashtag) { check_cashtag("", {}); check_cashtag("$", {}); check_cashtag("$$", {}); check_cashtag("$$$", {}); check_cashtag("$a", {}); check_cashtag(" $a", {}); check_cashtag("$a ", {}); check_cashtag(" $я ", {}); check_cashtag("$ab", {}); check_cashtag("$abc", {}); check_cashtag("$", {}); check_cashtag("$A", {"$A"}); check_cashtag("$AB", {"$AB"}); check_cashtag("$ABС", {}); check_cashtag("$АBC", {}); check_cashtag("$АВС", {}); check_cashtag("$ABC", {"$ABC"}); check_cashtag("$ABCD", {"$ABCD"}); check_cashtag("$ABCDE", {"$ABCDE"}); check_cashtag("$ABCDEF", {"$ABCDEF"}); check_cashtag("$ABCDEFG", {"$ABCDEFG"}); check_cashtag("$ABCDEFGH", {"$ABCDEFGH"}); check_cashtag("$ABCDEFGHJ", {}); check_cashtag("$ABCDEFGH1", {}); check_cashtag(" $XYZ", {"$XYZ"}); check_cashtag("$XYZ ", {"$XYZ"}); check_cashtag(" $XYZ ", {"$XYZ"}); check_cashtag(" $$XYZ ", {}); check_cashtag(" $XYZ$ ", {}); check_cashtag(" $ABC1 ", {}); check_cashtag(" $1ABC ", {}); check_cashtag(" 1$ABC ", {}); check_cashtag(" А$ABC ", {}); check_cashtag("$ABC$DEF $GHI $KLM", {"$GHI", "$KLM"}); check_cashtag("$TEST", {"$TEST"}); check_cashtag("$1INC", {}); check_cashtag("$1INCH", {"$1INCH"}); check_cashtag("...$1INCH...", {"$1INCH"}); check_cashtag("$1inch", {}); check_cashtag("$1INCHA", {}); check_cashtag("$1INCHА", {}); check_cashtag(u8"$ABC\u2122", {"$ABC"}); check_cashtag(u8"\u2122$ABC", {"$ABC"}); check_cashtag(u8"\u2122$ABC\u2122", {"$ABC"}); } static void check_media_timestamp(const td::string &str, const td::vector> &expected) { auto result = td::transform(td::find_media_timestamps(str), [](auto &&entity) { return std::make_pair(entity.first.str(), entity.second); }); if (result != expected) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result)) << td::tag("expected", td::format::as_array(expected)); } } TEST(MessageEntities, media_timestamp) { check_media_timestamp("", {}); check_media_timestamp(":", {}); check_media_timestamp(":1", {}); check_media_timestamp("a:1", {}); check_media_timestamp("01", {}); check_media_timestamp("01:", {}); check_media_timestamp("01::", {}); check_media_timestamp("01::", {}); check_media_timestamp("a1:1a", {}); check_media_timestamp("a1::01a", {}); check_media_timestamp("2001:db8::8a2e:f70:13a4", {}); check_media_timestamp("0:00", {{"0:00", 0}}); check_media_timestamp("+0:00", {{"0:00", 0}}); check_media_timestamp("0:00+", {{"0:00", 0}}); check_media_timestamp("a0:00", {}); check_media_timestamp("0:00a", {}); check_media_timestamp("б0:00", {}); check_media_timestamp("0:00б", {}); check_media_timestamp("_0:00", {}); check_media_timestamp("0:00_", {}); check_media_timestamp("00:00:00:00", {}); check_media_timestamp("1:1:01 1:1:1", {{"1:1:01", 3661}}); check_media_timestamp("0:0:00 00:00 000:00 0000:00 00000:00 00:00:00 000:00:00 00:000:00 00:00:000", {{"0:0:00", 0}, {"00:00", 0}, {"000:00", 0}, {"0000:00", 0}, {"00:00:00", 0}}); check_media_timestamp("00:0:00 0:00:00 00::00 :00:00 00:00: 00:00:0 00:00:", {{"00:0:00", 0}, {"0:00:00", 0}}); check_media_timestamp("1:1:59 1:1:-1 1:1:60", {{"1:1:59", 3719}}); check_media_timestamp("1:59:00 1:-1:00 1:60:00", {{"1:59:00", 7140}, {"1:00", 60}}); check_media_timestamp("59:59 60:00", {{"59:59", 3599}, {"60:00", 3600}}); check_media_timestamp("9999:59 99:59:59 99:60:59", {{"9999:59", 599999}, {"99:59:59", 360000 - 1}}); check_media_timestamp("2001:db8::8a2e:f70:13a4", {}); } static void check_bank_card_number(const td::string &str, const td::vector &expected) { auto result_slice = td::find_bank_card_numbers(str); td::vector result; for (auto &it : result_slice) { result.push_back(it.str()); } if (result != expected) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result)) << td::tag("expected", td::format::as_array(expected)); } } TEST(MessageEntities, bank_card_number) { check_bank_card_number("", {}); check_bank_card_number("123456789015", {}); check_bank_card_number("1234567890120", {}); check_bank_card_number("1234567890121", {}); check_bank_card_number("1234567890122", {}); check_bank_card_number("1234567890123", {}); check_bank_card_number("1234567890124", {}); check_bank_card_number("1234567890125", {}); check_bank_card_number("1234567890126", {}); check_bank_card_number("1234567890127", {}); check_bank_card_number("1234567890128", {"1234567890128"}); check_bank_card_number("1234567890129", {}); check_bank_card_number("12345678901500", {"12345678901500"}); check_bank_card_number("123456789012800", {"123456789012800"}); check_bank_card_number("1234567890151800", {"1234567890151800"}); check_bank_card_number("12345678901280000", {"12345678901280000"}); check_bank_card_number("123456789015009100", {"123456789015009100"}); check_bank_card_number("1234567890128000000", {"1234567890128000000"}); check_bank_card_number("12345678901500910000", {}); check_bank_card_number(" - - - - 1 - -- 2 - - -- 34 - - - 56- - 7890150000 - - - -", {}); check_bank_card_number(" - - - - 1 - -- 234 - - 56- - 7890150000 - - - -", {"1 - -- 234 - - 56- - 7890150000"}); check_bank_card_number("4916-3385-0608-2832; 5280 9342 8317 1080 ;345936346788903", {"4916-3385-0608-2832", "5280 9342 8317 1080", "345936346788903"}); check_bank_card_number("4556728228023269, 4916141675244747020, 49161416752447470, 4556728228023269", {"4556728228023269", "4916141675244747020", "4556728228023269"}); check_bank_card_number("a1234567890128", {}); check_bank_card_number("1234567890128a", {}); check_bank_card_number("1234567890128а", {}); check_bank_card_number("а1234567890128", {}); check_bank_card_number("1234567890128_", {}); check_bank_card_number("_1234567890128", {}); check_bank_card_number("1234567890128/", {"1234567890128"}); check_bank_card_number("\"1234567890128", {"1234567890128"}); check_bank_card_number("+1234567890128", {}); } static void check_tg_url(const td::string &str, const td::vector &expected) { auto result_slice = td::find_tg_urls(str); td::vector result; for (auto &it : result_slice) { result.push_back(it.str()); } if (result != expected) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result)) << td::tag("expected", td::format::as_array(expected)); } } TEST(MessageEntities, tg_url) { check_tg_url("", {}); check_tg_url("tg://", {}); check_tg_url("tg://a", {"tg://a"}); check_tg_url("a", {}); check_tg_url("stg://a", {"tg://a"}); check_tg_url("asd asdas das ton:asd tg:test ton://resolve tg://resolve TON://_-RESOLVE_- TG://-_RESOLVE-_", {"ton://resolve", "tg://resolve", "TON://_-RESOLVE_-", "TG://-_RESOLVE-_"}); check_tg_url("tg:test/", {}); check_tg_url("tg:/test/", {}); check_tg_url("tg://test/", {"tg://test/"}); check_tg_url("tg://test/?", {"tg://test/"}); check_tg_url("tg://test/#", {"tg://test/#"}); check_tg_url("tg://test?", {"tg://test"}); check_tg_url("tg://test#", {"tg://test"}); check_tg_url("tg://test/―asd―?asd=asd&asdas=―#――――", {"tg://test/―asd―?asd=asd&asdas=―#――――"}); check_tg_url("tg://test/?asd", {"tg://test/?asd"}); check_tg_url("tg://test/?.:;,('?!`.:;,('?!`", {"tg://test/"}); check_tg_url("tg://test/#asdf", {"tg://test/#asdf"}); check_tg_url("tg://test?asdf", {"tg://test?asdf"}); check_tg_url("tg://test#asdf", {"tg://test#asdf"}); check_tg_url("tg://test?as‖df", {"tg://test?as"}); check_tg_url("tg://test?sadf", {"tg://test?as"}); check_tg_url("tg://test?as\"df", {"tg://test?as"}); check_tg_url("tg://test?as«df", {"tg://test?as"}); check_tg_url("tg://test?as»df", {"tg://test?as"}); check_tg_url("tg://test?as(df", {"tg://test?as(df"}); check_tg_url("tg://test?as)df", {"tg://test?as)df"}); check_tg_url("tg://test?as[df", {"tg://test?as[df"}); check_tg_url("tg://test?as]df", {"tg://test?as]df"}); check_tg_url("tg://test?as{df", {"tg://test?as{df"}); check_tg_url("tg://test?as'df", {"tg://test?as'df"}); check_tg_url("tg://test?as}df", {"tg://test?as}df"}); check_tg_url("tg://test?as$df", {"tg://test?as$df"}); check_tg_url("tg://test?as%df", {"tg://test?as%df"}); check_tg_url("tg://%30/sccct", {}); check_tg_url("tg://test:asd@google.com:80", {"tg://test"}); check_tg_url("tg://google.com", {"tg://google"}); check_tg_url("tg://google/.com", {"tg://google/.com"}); check_tg_url("tg://127.0.0.1", {"tg://127"}); check_tg_url("tg://б.а.н.а.на", {}); } static void check_is_email_address(const td::string &str, bool expected) { bool result = td::is_email_address(str); LOG_IF(FATAL, result != expected) << "Expected " << expected << " as result of is_email_address(" << str << ")"; } TEST(MessageEntities, is_email_address) { check_is_email_address("telegram.org", false); check_is_email_address("security@telegram.org", true); check_is_email_address("security.telegram.org", false); check_is_email_address("", false); check_is_email_address("@", false); check_is_email_address("A@a.a.a.ab", true); check_is_email_address("A@a.ab", true); check_is_email_address("Test@aa.aa.aa.aa", true); check_is_email_address("Test@test.abd", true); check_is_email_address("a@a.a.a.ab", true); check_is_email_address("test@test.abd", true); check_is_email_address("test@test.com", true); check_is_email_address("test.abd", false); check_is_email_address("a.ab", false); check_is_email_address("a.bc@d.ef", true); td::vector bad_userdatas = {"", "a.a.a.a.a.a.a.a.a.a.a.a", "+.+.+.+.+.+", "*.a.a", "a.*.a", "a.a.*", "a.a.", "a.a.abcdefghijklmnopqrstuvwxyz0123456789", "a.abcdefghijklmnopqrstuvwxyz0.a", "abcdefghijklmnopqrstuvwxyz0.a.a"}; td::vector good_userdatas = {"a.a.a.a.a.a.a.a.a.a.a", "a+a+a+a+a+a+a+a+a+a+a", "+.+.+.+.+._", "aozAQZ0-5-9_+-aozAQZ0-5-9_.aozAQZ0-5-9_.-._.+-", "a.a.a", "a.a.abcdefghijklmnopqrstuvwxyz012345678", "a.abcdefghijklmnopqrstuvwxyz.a", "a..a", "abcdefghijklmnopqrstuvwxyz.a.a", ".a.a"}; td::vector bad_domains = {"", ".", "abc", "localhost", "a.a.a.a.a.a.a.ab", ".......", "a.a.a.a.a.a+ab", "a+a.a.a.a.a.ab", "a.a.a.a.a.a.a", "a.a.a.a.a.a.abcdefghi", "a.a.a.a.a.a.ab0yz", "a.a.a.a.a.a.ab9yz", "a.a.a.a.a.a.ab-yz", "a.a.a.a.a.a.ab_yz", "a.a.a.a.a.a.ab*yz", ".ab", ".a.ab", "a..ab", "a.a.a..a.ab", ".a.a.a.a.ab", "abcdefghijklmnopqrstuvwxyz01234.ab", "ab0cd.abd.aA*sd.0.9.0-9.ABOYZ", "ab*cd.abd.aAasd.0.9.0-9.ABOYZ", "ab0cd.abd.aAasd.0.9.0*9.ABOYZ", "*b0cd.ab_d.aA-sd.0.9.0-9.ABOYZ", "ab0c*.ab_d.aA-sd.0.9.0-9.ABOYZ", "ab0cd.ab_d.aA-sd.0.9.0-*.ABOYZ", "ab0cd.ab_d.aA-sd.0.9.*-9.ABOYZ", "-b0cd.ab_d.aA-sd.0.9.0-9.ABOYZ", "ab0c-.ab_d.aA-sd.0.9.0-9.ABOYZ", "ab0cd.ab_d.aA-sd.-.9.0-9.ABOYZ", "ab0cd.ab_d.aA-sd.0.9.--9.ABOYZ", "ab0cd.ab_d.aA-sd.0.9.0--.ABOYZ", "_b0cd.ab_d.aA-sd.0.9.0-9.ABOYZ", "ab0c_.ab_d.aA-sd.0.9.0-9.ABOYZ", "ab0cd.ab_d.aA-sd._.9.0-9.ABOYZ", "ab0cd.ab_d.aA-sd.0.9._-9.ABOYZ", "ab0cd.ab_d.aA-sd.0.9.0-_.ABOYZ", "-.ab_d.aA-sd.0.9.0-9.ABOYZ", "ab0cd.ab_d.-.0.9.0-9.ABOYZ", "ab0cd.ab_d.aA-sd.0.9.-.ABOYZ", "_.ab_d.aA-sd.0.9.0-9.ABOYZ", "ab0cd.ab_d._.0.9.0-9.ABOYZ", "ab0cd.ab_d.aA-sd.0.9._.ABOYZ"}; td::vector good_domains = {"a.a.a.a.a.a.ab", "a.a.a.a.a.a.abcdef", "a.a.a.a.a.a.aboyz", "a.a.a.a.a.a.ABOYZ", "a.a.a.a.a.a.AbOyZ", "abcdefghijklmnopqrstuvwxyz0123.ab", "ab0cd.ab_d.aA-sd.0.9.0-9.ABOYZ", "A.Z.aA-sd.a.z.0-9.ABOYZ"}; for (auto &userdata : bad_userdatas) { for (auto &domain : bad_domains) { check_is_email_address(userdata + '@' + domain, false); check_is_email_address(userdata + domain, false); } for (auto &domain : good_domains) { check_is_email_address(userdata + '@' + domain, false); check_is_email_address(userdata + domain, false); } } for (auto &userdata : good_userdatas) { for (auto &domain : bad_domains) { check_is_email_address(userdata + '@' + domain, false); check_is_email_address(userdata + domain, false); } for (auto &domain : good_domains) { check_is_email_address(userdata + '@' + domain, true); check_is_email_address(userdata + domain, false); } } } static void check_url(const td::string &str, const td::vector &expected_urls, td::vector expected_email_addresses = {}) { auto result_slice = td::find_urls(str); td::vector result_urls; td::vector result_email_addresses; for (auto &it : result_slice) { if (!it.second) { result_urls.push_back(it.first.str()); } else { result_email_addresses.push_back(it.first.str()); } } if (result_urls != expected_urls) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result_urls)) << td::tag("expected", td::format::as_array(expected_urls)); } if (result_email_addresses != expected_email_addresses) { LOG(FATAL) << td::tag("text", str) << td::tag("got", td::format::as_array(result_email_addresses)) << td::tag("expected", td::format::as_array(expected_email_addresses)); } } TEST(MessageEntities, url) { check_url("telegram.org", {"telegram.org"}); check_url("(telegram.org)", {"telegram.org"}); check_url("\ntelegram.org)", {"telegram.org"}); check_url(" telegram.org)", {"telegram.org"}); check_url(".telegram.org)", {}); check_url("()telegram.org/?q=()", {"telegram.org/?q=()"}); check_url("\"telegram.org\"", {"telegram.org"}); check_url(" telegram. org. www. com... telegram.org... ...google.com...", {"telegram.org"}); check_url(" telegram.org ", {"telegram.org"}); check_url("Такой сайт: http://www.google.com или такой telegram.org ", {"http://www.google.com", "telegram.org"}); check_url(" telegram.org. ", {"telegram.org"}); check_url("http://google,.com", {}); check_url("http://telegram.org/?asd=123#123.", {"http://telegram.org/?asd=123#123"}); check_url("[http://google.com](test)", {"http://google.com"}); check_url("", {}); check_url(".", {}); check_url("http://@google.com", {}); check_url("http://@goog.com", {}); // TODO: server fix check_url("http://@@google.com", {}); check_url("http://a@google.com", {"http://a@google.com"}); check_url("http://test@google.com", {"http://test@google.com"}); check_url("google.com:᪉᪉᪉᪉᪉", {"google.com"}); check_url("https://telegram.org", {"https://telegram.org"}); check_url("http://telegram.org", {"http://telegram.org"}); check_url("ftp://telegram.org", {"ftp://telegram.org"}); check_url("ftps://telegram.org", {}); check_url("sftp://telegram.org", {}); check_url("hTtPs://telegram.org", {"hTtPs://telegram.org"}); check_url("HTTP://telegram.org", {"HTTP://telegram.org"}); check_url("аHTTP://telegram.org", {"HTTP://telegram.org"}); check_url("sHTTP://telegram.org", {}); check_url("://telegram.org", {}); check_url("google.com:᪀᪀", {"google.com"}); check_url( "http://" "abcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkab" "cdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcd" "efghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdef" "ghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefgh" "ijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghij" "kabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijka" "bcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabc" "defghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijk.com", {}); check_url("http://  .com", {}); check_url("URL:     .com", {}); check_url("URL: .com", {}); check_url(".com", {}); check_url("http://  .", {}); check_url("http://.", {}); check_url("http://.com", {}); check_url("http:// .", {}); check_url(",ahttp://google.com", {"http://google.com"}); check_url(".ahttp://google.com", {}); check_url("http://1.0", {}); check_url("http://a.0", {}); check_url("http://a.a", {}); check_url("google.com:1#ab c", {"google.com:1#ab"}); check_url("google.com:1#", {"google.com:1"}); check_url("google.com:1#1", {"google.com:1#1"}); check_url("google.com:00000001/abs", {"google.com:00000001/abs"}); check_url("google.com:000000065535/abs", {"google.com:000000065535/abs"}); check_url("google.com:000000065536/abs", {"google.com"}); check_url("google.com:000000080/abs", {"google.com:000000080/abs"}); check_url("google.com:0000000/abs", {"google.com"}); check_url("google.com:0/abs", {"google.com"}); check_url("google.com:/abs", {"google.com"}); check_url("google.com:65535", {"google.com:65535"}); check_url("google.com:65536", {"google.com"}); check_url("google.com:99999", {"google.com"}); check_url("google.com:100000", {"google.com"}); check_url("127.001", {}); check_url("127.0.0.1", {"127.0.0.1"}); check_url("127.0.0.01", {}); check_url("127.0.0.256", {}); check_url("127.0.0.300", {}); check_url("127.0.0.1000", {}); check_url("127.0.0.260", {}); check_url("1.0", {}); check_url("www.🤙.tk", {"www.🤙.tk"}); check_url("a.ab", {}); check_url("test.abd", {}); check_url("ТеСт.Москва", {}); check_url("ТеСт.МоСкВΑ", {}); check_url("ТеСт.МоСкВа", {"ТеСт.МоСкВа"}); check_url("ТеСт.МоСкВач", {}); check_url("http://ÀТеСт.МоСкВач", {"http://ÀТеСт.МоСкВач"}); check_url("ÀÁ.com. ÀÁ.com.", {"ÀÁ.com", "ÀÁ.com"}); check_url("ÀÁ.com,ÀÁ.com.", {"ÀÁ.com", "ÀÁ.com"}); check_url("teiegram.org", {}); check_url("http://test.google.com/?q=abc()}[]def", {"http://test.google.com/?q=abc()"}); check_url("http://test.google.com/?q=abc([{)]}def", {"http://test.google.com/?q=abc([{)]}def"}); check_url("http://test.google.com/?q=abc(){}]def", {"http://test.google.com/?q=abc(){}"}); check_url("http://test.google.com/?q=abc){}[]def", {"http://test.google.com/?q=abc"}); check_url("http://test.google.com/?q=abc(){}[]def", {"http://test.google.com/?q=abc(){}[]def"}); check_url("http://test-.google.com", {}); check_url("http://test_.google.com", {"http://test_.google.com"}); check_url("http://google_.com", {}); check_url("http://google._com_", {}); check_url("http://[2001:4860:0:2001::68]/", {}); // TODO check_url("tg://resolve", {}); check_url("test.abd", {}); check_url("/.b/..a @.....@/. a.ba", {"a.ba"}); check_url("bbbbbbbbbbbbbb.@.@", {}); check_url("http://google.com/", {"http://google.com/"}); check_url("http://google.com?", {"http://google.com"}); check_url("http://google.com#", {"http://google.com"}); check_url("http://google.com##", {"http://google.com##"}); check_url("http://google.com/?", {"http://google.com/"}); check_url("https://www.google.com/ab,", {"https://www.google.com/ab"}); check_url("@.", {}); check_url( "a.b.google.com dfsknnfs gsdfgsg http://códuia.de/ dffdg,\" 12)(cpia.de/())(\" http://гришка.рф/ sdufhdf " "http://xn--80afpi2a3c.xn--p1ai/ I have a good time.Thanks, guys!\n\n(hdfughidufhgdis) go#ogle.com гришка.рф " "hsighsdf gi почта.рф\n\n✪df.ws/123 " "xn--80afpi2a3c.xn--p1ai\n\nhttp://foo.com/blah_blah\nhttp://foo.com/blah_blah/\n(Something like " "http://foo.com/blah_blah)\nhttp://foo.com/blah_blah_(wikipedi8989a_Вася)\n(Something like " "http://foo.com/blah_blah_(Стакан_007))\nhttp://foo.com/blah_blah.\nhttp://foo.com/blah_blah/.\n\n\nhttp://foo.com/blah_blah,\nhttp://" "www.example.com/wpstyle/?p=364.\nhttp://✪df.ws/123\nrdar://1234\nrdar:/1234\nhttp://" "userid:password@example.com:8080\nhttp://userid@example.com\nhttp://userid@example.com:8080\nhttp://" "userid:password@example.com\nhttp://example.com:8080 " "x-yojimbo-item://6303E4C1-xxxx-45A6-AB9D-3A908F59AE0E\nmessage://" "%3c330e7f8409726r6a4ba78dkf1fd71420c1bf6ff@mail.gmail.com%3e\nhttp://➡️.ws/䨹\nwww.➡️.ws/" "䨹\nhttp://example.com\nJust a www.example.com " "link.\n\n➡️.ws/" "䨹\n\nabcdefghijklmnopqrstuvwxyz0123456789qwe_sdfsdf.aweawe-sdfs.com\nwww.🤙.tk:1\ngoogle.com:" "᪉᪉᪉᪉\ngoogle." "com:᪀᪀\nhttp://  .com\nURL:     .com\nURL: " ".com\n\ngoogle.com?qwe\ngoogle.com#qwe\ngoogle.com/?\ngoogle.com/#\ngoogle.com?\ngoogle.com#\n", {"a.b.google.com", "http://códuia.de/", "cpia.de/()", "http://гришка.рф/", "http://xn--80afpi2a3c.xn--p1ai/", "гришка.рф", "почта.рф", "✪df.ws/123", "xn--80afpi2a3c.xn--p1ai", "http://foo.com/blah_blah", "http://foo.com/blah_blah/", "http://foo.com/blah_blah", "http://foo.com/blah_blah_(wikipedi8989a_Вася)", "http://foo.com/blah_blah_(Стакан_007)", "http://foo.com/blah_blah", "http://foo.com/blah_blah/", "http://foo.com/blah_blah", "http://foo.com/blah_blah", "http://www.example.com/wpstyle/?p=364", "http://✪df.ws/123", "http://userid:password@example.com:8080", "http://userid@example.com", "http://userid@example.com:8080", "http://userid:password@example.com", "http://example.com:8080", "http://➡️.ws/䨹", "www.➡️.ws/䨹", "http://example.com", "www.example.com", "➡️.ws/䨹", "abcdefghijklmnopqrstuvwxyz0123456789qwe_sdfsdf.aweawe-sdfs.com", "www.🤙.tk:1", "google.com", "google.com", "google.com?qwe", "google.com#qwe", "google.com/", "google.com/#", "google.com", "google.com"}); check_url("https://t.…", {}); check_url("('http://telegram.org/a-b/?br=ie&lang=en',)", {"http://telegram.org/a-b/?br=ie&lang=en"}); check_url("https://ai.telegram.org/bot%20bot/test-...", {"https://ai.telegram.org/bot%20bot/test-"}); check_url("a.bc@c.com", {}, {"a.bc@c.com"}); check_url("https://a.bc@c.com", {"https://a.bc@c.com"}); check_url("https://a.de[bc@c.com", {"https://a.de"}, {"bc@c.com"}); check_url("https://a.de/bc@c.com", {"https://a.de/bc@c.com"}); check_url("https://a.de]bc@c.com", {"https://a.de"}, {"bc@c.com"}); check_url("https://a.de{bc@c.com", {"https://a.de"}, {"bc@c.com"}); check_url("https://a.de}bc@c.com", {"https://a.de"}, {"bc@c.com"}); check_url("https://a.de(bc@c.com", {"https://a.de"}, {"bc@c.com"}); check_url("https://a.de)bc@c.com", {"https://a.de"}, {"bc@c.com"}); check_url("https://a.de\\bc@c.com", {"https://a.de\\bc@c.com"}); check_url("https://a.de'bc@c.com", {"https://a.de"}, {"bc@c.com"}); check_url("https://a.de`bc@c.com", {"https://a.de"}, {"bc@c.com"}); check_url("https://a.bc:de.fg@c.com", {"https://a.bc:de.fg@c.com"}); check_url("https://a:h.bc:de.fg@c.com", {"https://a:h.bc:de.fg@c.com"}); check_url("https://abc@c.com", {"https://abc@c.com"}); check_url("https://de[bc@c.com", {}, {"bc@c.com"}); check_url("https://de/bc@c.com", {}); check_url("https://de]bc@c.com", {}, {"bc@c.com"}); check_url("https://de{bc@c.com", {}, {"bc@c.com"}); check_url("https://de}bc@c.com", {}, {"bc@c.com"}); check_url("https://de(bc@c.com", {}, {"bc@c.com"}); check_url("https://de)bc@c.com", {}, {"bc@c.com"}); check_url("https://de\\bc@c.com", {"https://de\\bc@c.com"}); check_url("https://de'bc@c.com", {}, {"bc@c.com"}); check_url("https://de`bc@c.com", {}, {"bc@c.com"}); check_url("https://bc:defg@c.com", {"https://bc:defg@c.com"}); check_url("https://a:hbc:defg@c.com", {"https://a:hbc:defg@c.com"}); check_url("https://a.bc@test.com:cd.com", {"https://a.bc@test.com", "cd.com"}); check_url("telegram.Org", {}); check_url("telegram.ORG", {"telegram.ORG"}); check_url("a.b.c.com.a.b.c", {}); check_url("File '/usr/views.py'", {}); // TODO server fix check_url("@views.py'", {}); // TODO server fix check_url("#views.py'", {}); // TODO server fix check_url("/views.py'", {}); // TODO server fix check_url(".views.py", {}); check_url("'views.py'", {"views.py"}); check_url("bug.http://test.com/test/+#", {}); // TODO {"http://test.com/test/+#"} check_url("//AB.C.D.E.F.GH//", {}); check_url("", {"http://www.ics.uci.edu/pub/ietf/uri/historical.html#WARNING"}); check_url("Look :test@example.com", {":test@example.com"}, {}); // TODO {}, {"test@example.com"} check_url("Look mailto:test@example.com", {}, {"test@example.com"}); check_url("http://test.com#a", {"http://test.com#a"}); check_url("http://test.com#", {"http://test.com"}); check_url("http://test.com?#", {"http://test.com?#"}); check_url("http://test.com/?#", {"http://test.com/?#"}); check_url("https://t.me/abcdef…", {"https://t.me/abcdef"}); check_url("https://t.me…", {"https://t.me"}); check_url("https://t.m…", {}); check_url("https://t.…", {}); check_url("https://t…", {}); check_url("👉http://ab.com/cdefgh-1IJ", {"http://ab.com/cdefgh-1IJ"}); check_url("...👉http://ab.com/cdefgh-1IJ", {}); // TODO check_url(".?", {}); check_url("http://test―‑@―google―.―com―/―–―‐―/―/―/―?―‑―#―――", {"http://test―‑@―google―.―com―/―–―‐―/―/―/―?―‑―#―――"}); check_url("http://google.com/‖", {"http://google.com/"}); check_url("a@b@c.com", {}, {}); check_url("a@b.com:c@1", {}, {"a@b.com"}); check_url("test@test.software", {}, {"test@test.software"}); } static void check_fix_formatted_text(td::string str, td::vector entities, const td::string &expected_str, const td::vector &expected_entities, bool allow_empty = true, bool skip_new_entities = false, bool skip_bot_commands = false, bool for_draft = true) { ASSERT_TRUE(td::fix_formatted_text(str, entities, allow_empty, skip_new_entities, skip_bot_commands, true, for_draft) .is_ok()); ASSERT_STREQ(expected_str, str); ASSERT_EQ(expected_entities, entities); } static void check_fix_formatted_text(td::string str, td::vector entities, bool allow_empty, bool skip_new_entities, bool skip_bot_commands, bool for_draft) { ASSERT_TRUE(td::fix_formatted_text(str, entities, allow_empty, skip_new_entities, skip_bot_commands, true, for_draft) .is_error()); } TEST(MessageEntities, fix_formatted_text) { td::string str; td::string fixed_str; for (auto i = 0; i <= 32; i++) { str += static_cast(i); if (i != 13) { if (i != 10) { fixed_str += ' '; } else { fixed_str += str.back(); } } } check_fix_formatted_text(str, {}, "", {}, true, true, true, true); check_fix_formatted_text(str, {}, "", {}, true, true, false, true); check_fix_formatted_text(str, {}, "", {}, true, false, true, true); check_fix_formatted_text(str, {}, "", {}, true, false, false, true); check_fix_formatted_text(str, {}, "", {}, true, false, false, false); check_fix_formatted_text(str, {}, false, false, false, false); check_fix_formatted_text(str, {}, false, false, false, true); check_fix_formatted_text(" aba\n ", {}, " aba\n ", {}, true, true, true, true); check_fix_formatted_text(" aba\n ", {}, "aba", {}, true, true, true, false); check_fix_formatted_text(" \n ", {}, "", {}, true, true, true, true); check_fix_formatted_text(" \n ", {}, "", {}, true, true, true, false); check_fix_formatted_text(" \n ", {}, false, true, true, false); str += "a \r\n "; fixed_str += "a \n "; for (td::int32 i = 33; i <= 35; i++) { td::vector entities; entities.emplace_back(td::MessageEntity::Type::Pre, 0, i); td::vector fixed_entities = entities; fixed_entities.back().length = i - 1; check_fix_formatted_text(str, entities, fixed_str, fixed_entities, true, false, false, true); td::string expected_str = fixed_str.substr(0, 33); fixed_entities.back().length = i == 33 ? 32 : 33; check_fix_formatted_text(str, entities, expected_str, fixed_entities, false, false, false, false); } for (td::int32 i = 33; i <= 35; i++) { td::vector entities; entities.emplace_back(td::MessageEntity::Type::Bold, 0, i); td::vector fixed_entities; if (i != 33) { fixed_entities.emplace_back(td::MessageEntity::Type::Bold, 32, i - 33); } check_fix_formatted_text(str, entities, fixed_str, fixed_entities, true, false, false, true); td::string expected_str; if (i != 33) { fixed_entities.back().offset = 0; fixed_entities.back().length = 1; } expected_str = "a"; check_fix_formatted_text(str, entities, expected_str, fixed_entities, false, false, false, false); } str = "👉 👉 "; for (int i = 0; i < 10; i++) { td::vector entities; entities.emplace_back(td::MessageEntity::Type::Bold, i, 1); if (i != 2 && i != 5 && i != 6) { check_fix_formatted_text(str, entities, true, true, true, true); check_fix_formatted_text(str, entities, false, false, false, false); } else { check_fix_formatted_text(str, entities, str, {}, true, true, true, true); check_fix_formatted_text(str, entities, str.substr(0, str.size() - 2), {}, false, false, false, false); } } str = " /test @abaca #ORD $ABC telegram.org "; for (auto for_draft : {false, true}) { td::int32 shift = for_draft ? 2 : 0; td::string expected_str = for_draft ? str : str.substr(2, str.size() - 3); for (auto skip_new_entities : {false, true}) { for (auto skip_bot_commands : {false, true}) { td::vector entities; if (!skip_new_entities) { if (!skip_bot_commands) { entities.emplace_back(td::MessageEntity::Type::BotCommand, shift, 5); } entities.emplace_back(td::MessageEntity::Type::Mention, shift + 6, 6); entities.emplace_back(td::MessageEntity::Type::Hashtag, shift + 13, 4); entities.emplace_back(td::MessageEntity::Type::Cashtag, shift + 18, 4); entities.emplace_back(td::MessageEntity::Type::Url, shift + 24, 12); } check_fix_formatted_text(str, {}, expected_str, entities, true, skip_new_entities, skip_bot_commands, for_draft); check_fix_formatted_text(str, {}, expected_str, entities, false, skip_new_entities, skip_bot_commands, for_draft); } } } str = "aba \r\n caba "; for (td::int32 length = 1; length <= 3; length++) { for (td::int32 offset = 0; static_cast(offset + length) <= str.size(); offset++) { for (auto type : {td::MessageEntity::Type::Bold, td::MessageEntity::Type::Url, td::MessageEntity::Type::TextUrl, td::MessageEntity::Type::MentionName}) { for (auto for_draft : {false, true}) { fixed_str = for_draft ? "aba \n caba " : "aba \n caba"; auto fixed_length = offset <= 4 && offset + length >= 5 ? length - 1 : length; auto fixed_offset = offset >= 5 ? offset - 1 : offset; if (static_cast(fixed_offset) >= fixed_str.size()) { fixed_length = 0; } while (static_cast(fixed_offset + fixed_length) > fixed_str.size()) { fixed_length--; } if (type == td::MessageEntity::Type::Bold || type == td::MessageEntity::Type::Url) { while (fixed_length > 0 && (fixed_str[fixed_offset] == ' ' || fixed_str[fixed_offset] == '\n')) { fixed_offset++; fixed_length--; } } td::vector entities; entities.emplace_back(type, offset, length); td::vector fixed_entities; if (fixed_length > 0) { for (auto i = 0; i < length; i++) { if (!td::is_space(str[offset + i]) || type == td::MessageEntity::Type::TextUrl || type == td::MessageEntity::Type::MentionName) { fixed_entities.emplace_back(type, fixed_offset, fixed_length); break; } } } check_fix_formatted_text(str, entities, fixed_str, fixed_entities, true, false, false, for_draft); } } } } str = "aba caba"; for (td::int32 length = -10; length <= 10; length++) { for (td::int32 offset = -10; offset <= 10; offset++) { td::vector entities; entities.emplace_back(td::MessageEntity::Type::Bold, offset, length); if (length < 0 || offset < 0 || (length > 0 && static_cast(length + offset) > str.size())) { check_fix_formatted_text(str, entities, true, false, false, false); check_fix_formatted_text(str, entities, false, false, false, true); continue; } td::vector fixed_entities; if (length > 0) { if (offset == 3) { if (length >= 2) { fixed_entities.emplace_back(td::MessageEntity::Type::Bold, offset + 1, length - 1); } } else { fixed_entities.emplace_back(td::MessageEntity::Type::Bold, offset, length); } } check_fix_formatted_text(str, entities, str, fixed_entities, true, false, false, false); check_fix_formatted_text(str, entities, str, fixed_entities, false, false, false, true); } } str = "abadcaba"; for (td::int32 length = 1; length <= 7; length++) { for (td::int32 offset = 0; offset <= 8 - length; offset++) { for (td::int32 length2 = 1; length2 <= 7; length2++) { for (td::int32 offset2 = 0; offset2 <= 8 - length2; offset2++) { if (offset != offset2) { td::vector entities; entities.emplace_back(td::MessageEntity::Type::TextUrl, offset, length); entities.emplace_back(td::MessageEntity::Type::TextUrl, offset2, length2); td::vector fixed_entities = entities; std::sort(fixed_entities.begin(), fixed_entities.end()); if (fixed_entities[0].offset + fixed_entities[0].length > fixed_entities[1].offset) { fixed_entities.pop_back(); } check_fix_formatted_text(str, entities, str, fixed_entities, false, false, false, false); } } } } } for (auto text : {" \n ➡️ ➡️ ➡️ ➡️ \n ", "\n\n\nab cd ef gh "}) { str = text; td::vector entities; td::vector fixed_entities; auto length = td::narrow_cast(td::utf8_utf16_length(str)); for (int i = 0; i < 10; i++) { if ((i + 1) * 3 + 2 <= length) { entities.emplace_back(td::MessageEntity::Type::Bold, (i + 1) * 3, 2); } if ((i + 2) * 3 <= length) { entities.emplace_back(td::MessageEntity::Type::Italic, (i + 1) * 3 + 2, 1); } if (i < 4) { fixed_entities.emplace_back(td::MessageEntity::Type::Bold, i * 3, 2); } } check_fix_formatted_text(str, entities, td::utf8_utf16_substr(str, 3, 11), fixed_entities, false, false, false, false); } for (td::string text : {"\t", "\r", "\n", "\t ", "\r ", "\n "}) { for (auto type : {td::MessageEntity::Type::Bold, td::MessageEntity::Type::TextUrl}) { check_fix_formatted_text(text, {{type, 0, 1, "http://telegram.org/"}}, "", {}, true, false, false, true); } } check_fix_formatted_text("\r ", {{td::MessageEntity::Type::Bold, 0, 2}, {td::MessageEntity::Type::Underline, 0, 1}}, "", {}, true, false, false, true); check_fix_formatted_text("a \r", {{td::MessageEntity::Type::Bold, 0, 3}, {td::MessageEntity::Type::Underline, 2, 1}}, "a ", {{td::MessageEntity::Type::Bold, 0, 2}}, true, false, false, true); check_fix_formatted_text("a \r ", {{td::MessageEntity::Type::Bold, 0, 4}, {td::MessageEntity::Type::Underline, 2, 1}}, "a ", {{td::MessageEntity::Type::Bold, 0, 2}}, true, false, false, true); check_fix_formatted_text( "a \r b", {{td::MessageEntity::Type::Bold, 0, 5}, {td::MessageEntity::Type::Underline, 2, 1}}, "a b", {{td::MessageEntity::Type::Bold, 0, 2}, {td::MessageEntity::Type::Bold, 3, 1}}, true, false, false, true); check_fix_formatted_text("a\rbc\r", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 0, 2}, {td::MessageEntity::Type::Italic, 3, 2}, {td::MessageEntity::Type::Bold, 3, 1}}, "abc", {{td::MessageEntity::Type::Bold, 0, 1}, {td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 2, 1}, {td::MessageEntity::Type::Italic, 2, 1}}); check_fix_formatted_text("a ", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Bold, 0, 1}}, "a", {{td::MessageEntity::Type::Bold, 0, 1}, {td::MessageEntity::Type::Italic, 0, 1}}, false, false, false, false); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 1, 1}, {td::MessageEntity::Type::Italic, 0, 1}}, "abc", {{td::MessageEntity::Type::Italic, 0, 2}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 1, 1}, {td::MessageEntity::Type::Italic, 1, 1}}, "abc", {{td::MessageEntity::Type::Italic, 1, 1}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Italic, 1, 2}}, "abc", {{td::MessageEntity::Type::Italic, 0, 3}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Italic, 2, 1}}, "abc", {{td::MessageEntity::Type::Italic, 0, 3}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Italic, 2, 1}}, "abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Italic, 2, 1}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Bold, 1, 2}}, "abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 1, 2}, {td::MessageEntity::Type::Italic, 1, 1}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}}, "abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 2, 1}}, "abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 2, 1}}); check_fix_formatted_text("@tests @tests", {{td::MessageEntity::Type::Italic, 0, 13}}, "@tests @tests", {{td::MessageEntity::Type::Mention, 0, 6}, {td::MessageEntity::Type::Italic, 0, 6}, {td::MessageEntity::Type::Mention, 7, 6}, {td::MessageEntity::Type::Italic, 7, 6}}); // __a~b~__ check_fix_formatted_text( "ab", {{td::MessageEntity::Type::Underline, 0, 2}, {td::MessageEntity::Type::Strikethrough, 1, 1}}, "ab", {{td::MessageEntity::Type::Underline, 0, 1}, {td::MessageEntity::Type::Underline, 1, 1}, {td::MessageEntity::Type::Strikethrough, 1, 1}}); check_fix_formatted_text("ab", {{td::MessageEntity::Type::Underline, 0, 1}, {td::MessageEntity::Type::Underline, 1, 1}, {td::MessageEntity::Type::Strikethrough, 1, 1}}, "ab", {{td::MessageEntity::Type::Underline, 0, 1}, {td::MessageEntity::Type::Underline, 1, 1}, {td::MessageEntity::Type::Strikethrough, 1, 1}}); check_fix_formatted_text( "ab", {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Underline, 1, 1}}, "ab", {{td::MessageEntity::Type::Strikethrough, 0, 1}, {td::MessageEntity::Type::Underline, 1, 1}, {td::MessageEntity::Type::Strikethrough, 1, 1}}); check_fix_formatted_text("ab", {{td::MessageEntity::Type::Strikethrough, 0, 1}, {td::MessageEntity::Type::Strikethrough, 1, 1}, {td::MessageEntity::Type::Underline, 1, 1}}, "ab", {{td::MessageEntity::Type::Strikethrough, 0, 1}, {td::MessageEntity::Type::Underline, 1, 1}, {td::MessageEntity::Type::Strikethrough, 1, 1}}); // __||a||b__ check_fix_formatted_text("ab", {{td::MessageEntity::Type::Underline, 0, 2}, {td::MessageEntity::Type::Spoiler, 0, 1}}, "ab", {{td::MessageEntity::Type::Underline, 0, 2}, {td::MessageEntity::Type::Spoiler, 0, 1}}); check_fix_formatted_text("ab", {{td::MessageEntity::Type::Underline, 0, 1}, {td::MessageEntity::Type::Underline, 1, 1}, {td::MessageEntity::Type::Spoiler, 0, 1}}, "ab", {{td::MessageEntity::Type::Underline, 0, 2}, {td::MessageEntity::Type::Spoiler, 0, 1}}); // _*a*_\r_*b*_ check_fix_formatted_text("a\rb", {{td::MessageEntity::Type::Bold, 0, 1}, {td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 2, 1}, {td::MessageEntity::Type::Italic, 2, 1}}, "ab", {{td::MessageEntity::Type::Bold, 0, 2}, {td::MessageEntity::Type::Italic, 0, 2}}); check_fix_formatted_text("a\nb", {{td::MessageEntity::Type::Bold, 0, 1}, {td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 2, 1}, {td::MessageEntity::Type::Italic, 2, 1}}, "a\nb", {{td::MessageEntity::Type::Bold, 0, 1}, {td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 2, 1}, {td::MessageEntity::Type::Italic, 2, 1}}); // ||`a`|| check_fix_formatted_text("a", {{td::MessageEntity::Type::Pre, 0, 1}, {td::MessageEntity::Type::Spoiler, 0, 1}}, "a", {{td::MessageEntity::Type::Pre, 0, 1}}); check_fix_formatted_text("a", {{td::MessageEntity::Type::Spoiler, 0, 1}, {td::MessageEntity::Type::Pre, 0, 1}}, "a", {{td::MessageEntity::Type::Pre, 0, 1}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Pre, 0, 3}, {td::MessageEntity::Type::Strikethrough, 1, 1}}, "abc", {{td::MessageEntity::Type::Pre, 0, 3}}); check_fix_formatted_text( "abc", {{td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 0, 3}}, "abc", {{td::MessageEntity::Type::Strikethrough, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 2, 1}}); check_fix_formatted_text( "abc", {{td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 1, 2}}, "abc", {{td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 2, 1}}); check_fix_formatted_text( "abc", {{td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 0, 2}}, "abc", {{td::MessageEntity::Type::Strikethrough, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::Pre, 0, 3}, {td::MessageEntity::Type::BlockQuote, 1, 1}}, "abc", {{td::MessageEntity::Type::BlockQuote, 1, 1}}); check_fix_formatted_text("abc", {{td::MessageEntity::Type::BlockQuote, 0, 3}, {td::MessageEntity::Type::Pre, 1, 1}}, "abc", {{td::MessageEntity::Type::BlockQuote, 0, 3}, {td::MessageEntity::Type::Pre, 1, 1}}); check_fix_formatted_text("example.com", {}, "example.com", {{td::MessageEntity::Type::Url, 0, 11}}); check_fix_formatted_text("example.com", {{td::MessageEntity::Type::Pre, 0, 3}}, "example.com", {{td::MessageEntity::Type::Pre, 0, 3}}); check_fix_formatted_text("example.com", {{td::MessageEntity::Type::BlockQuote, 0, 3}}, "example.com", {{td::MessageEntity::Type::BlockQuote, 0, 3}}); check_fix_formatted_text("example.com", {{td::MessageEntity::Type::BlockQuote, 0, 11}}, "example.com", {{td::MessageEntity::Type::BlockQuote, 0, 11}, {td::MessageEntity::Type::Url, 0, 11}}); check_fix_formatted_text("example.com", {{td::MessageEntity::Type::Italic, 0, 11}}, "example.com", {{td::MessageEntity::Type::Url, 0, 11}, {td::MessageEntity::Type::Italic, 0, 11}}); check_fix_formatted_text("example.com", {{td::MessageEntity::Type::Italic, 0, 3}}, "example.com", {{td::MessageEntity::Type::Url, 0, 11}, {td::MessageEntity::Type::Italic, 0, 3}}); check_fix_formatted_text("example.com a", {{td::MessageEntity::Type::Italic, 0, 13}}, "example.com a", {{td::MessageEntity::Type::Url, 0, 11}, {td::MessageEntity::Type::Italic, 0, 11}, {td::MessageEntity::Type::Italic, 12, 1}}); check_fix_formatted_text("a example.com", {{td::MessageEntity::Type::Italic, 0, 13}}, "a example.com", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Url, 2, 11}, {td::MessageEntity::Type::Italic, 2, 11}}); for (size_t test_n = 0; test_n < 100000; test_n++) { bool is_url = td::Random::fast_bool(); td::int32 url_offset = 0; td::int32 url_end = 0; if (is_url) { str = td::string(td::Random::fast(1, 5), 'a') + ":example.com:" + td::string(td::Random::fast(1, 5), 'a'); url_offset = static_cast(str.find('e')); url_end = url_offset + 11; } else { str = td::string(td::Random::fast(1, 20), 'a'); } auto n = td::Random::fast(1, 20); td::vector entities; for (int j = 0; j < n; j++) { td::int32 type = td::Random::fast(4, 16); td::int32 offset = td::Random::fast(0, static_cast(str.size()) - 1); auto max_length = static_cast(str.size() - offset); if ((test_n & 1) != 0 && max_length > 4) { max_length = 4; } td::int32 length = td::Random::fast(0, max_length); entities.emplace_back(static_cast(type), offset, length); } auto get_type_mask = [](std::size_t length, const td::vector &entities) { td::vector result(length); for (auto &entity : entities) { for (auto pos = 0; pos < entity.length; pos++) { result[entity.offset + pos] |= (1 << static_cast(entity.type)); } } return result; }; auto old_type_mask = get_type_mask(str.size(), entities); ASSERT_TRUE(td::fix_formatted_text(str, entities, false, false, true, true, false).is_ok()); auto new_type_mask = get_type_mask(str.size(), entities); auto splittable_mask = (1 << 5) | (1 << 6) | (1 << 14) | (1 << 15); auto pre_mask = (1 << 7) | (1 << 8) | (1 << 9); for (std::size_t pos = 0; pos < str.size(); pos++) { if ((new_type_mask[pos] & pre_mask) != 0) { ASSERT_EQ(0, new_type_mask[pos] & splittable_mask); } else { ASSERT_EQ(old_type_mask[pos] & splittable_mask, new_type_mask[pos] & splittable_mask); } } bool keep_url = is_url; td::MessageEntity url_entity(td::MessageEntity::Type::Url, url_offset, url_end - url_offset); for (auto &entity : entities) { if (entity == url_entity) { continue; } td::int32 offset = entity.offset; td::int32 end = offset + entity.length; if (keep_url && ((1 << static_cast(entity.type)) & splittable_mask) == 0 && !(end <= url_offset || url_end <= offset)) { keep_url = (entity.type == td::MessageEntity::Type::BlockQuote && offset <= url_offset && url_end <= end); } } ASSERT_EQ(keep_url, std::count(entities.begin(), entities.end(), url_entity) == 1); for (size_t i = 0; i < entities.size(); i++) { auto type_mask = 1 << static_cast(entities[i].type); for (size_t j = i + 1; j < entities.size(); j++) { // sorted ASSERT_TRUE(entities[j].offset > entities[i].offset || (entities[j].offset == entities[i].offset && entities[j].length <= entities[i].length)); // not intersecting ASSERT_TRUE(entities[j].offset >= entities[i].offset + entities[i].length || entities[j].offset + entities[j].length <= entities[i].offset + entities[i].length); if (entities[j].offset < entities[i].offset + entities[i].length) { // if nested // types are different ASSERT_TRUE(entities[j].type != entities[i].type); // pre can't contain other entities ASSERT_TRUE((type_mask & pre_mask) == 0); if ((type_mask & splittable_mask) == 0 && entities[i].type != td::MessageEntity::Type::BlockQuote) { // continuous entities can contain only splittable entities ASSERT_TRUE(((1 << static_cast(entities[j].type)) & splittable_mask) != 0); } } } } } check_fix_formatted_text( "\xe2\x80\x8f\xe2\x80\x8f \xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8c \xe2\x80\x8f\xe2\x80\x8e " "\xe2\x80\x8f", {}, "\xe2\x80\x8c\xe2\x80\x8f \xe2\x80\x8c\xe2\x80\x8c\xe2\x80\x8e\xe2\x80\x8c \xe2\x80\x8c\xe2\x80\x8e " "\xe2\x80\x8f", {}); } static void check_parse_html(td::string text, const td::string &result, const td::vector &entities) { auto r_entities = td::parse_html(text); ASSERT_TRUE(r_entities.is_ok()); ASSERT_EQ(entities, r_entities.ok()); ASSERT_STREQ(result, text); } static void check_parse_html(td::string text, td::Slice error_message) { auto r_entities = td::parse_html(text); ASSERT_TRUE(r_entities.is_error()); ASSERT_EQ(400, r_entities.error().code()); ASSERT_STREQ(error_message, r_entities.error().message()); } TEST(MessageEntities, parse_html) { td::string invalid_surrogate_pair_error_message = "Text contains invalid Unicode characters after decoding HTML entities, check for unmatched surrogate code units"; check_parse_html("�", invalid_surrogate_pair_error_message); check_parse_html("�", invalid_surrogate_pair_error_message); check_parse_html("�", invalid_surrogate_pair_error_message); check_parse_html("🏟 🏟<", "Unsupported start tag \"abac\" at byte offset 13"); check_parse_html("🏟 🏟<", "Unsupported start tag \"abac\" at byte offset 13"); check_parse_html("🏟 🏟<", "Empty attribute name in the tag \"i\" at byte offset 13"); check_parse_html("🏟 🏟<", "Expected equal sign in declaration of an attribute of the tag \"i\" at byte offset 13"); check_parse_html("🏟 🏟<", "Unclosed start tag at byte offset 13"); check_parse_html("🏟 🏟<", "Unclosed start tag at byte offset 13"); check_parse_html("🏟 🏟<aa", "Unmatched end tag at byte offset 17, expected \"\", found \"\""); check_parse_html("", "", {}); check_parse_html("➡️ ➡️", "➡️ ➡️", {}); check_parse_html("<>&"«»�", "<>&\"«»�", {}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Italic, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Italic, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Bold, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Bold, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Underline, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Underline, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Strikethrough, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Strikethrough, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Strikethrough, 5, 5}}); check_parse_html("➡️ ➡️➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Italic, 5, 5}, {td::MessageEntity::Type::Bold, 10, 5}}); check_parse_html("🏟 🏟🏟 <🏟", "🏟 🏟🏟 <🏟", {{td::MessageEntity::Type::Italic, 5, 6}}); check_parse_html("🏟 🏟🏟 ><🏟", "🏟 🏟🏟 ><🏟", {{td::MessageEntity::Type::Italic, 5, 7}, {td::MessageEntity::Type::Bold, 9, 3}}); check_parse_html("🏟 🏟<a", "🏟 🏟a", "🏟 🏟a", "🏟 🏟a", "🏟 🏟a", "🏟 🏟🏟 🏟<", "🏟 🏟<🏟 🏟<", {{td::MessageEntity::Type::Italic, 6, 6}}); check_parse_html("🏟 🏟<a", "🏟 🏟a", "🏟 🏟", "🏟 🏟<", {}); check_parse_html("\t", "\t", {{td::MessageEntity::Type::Italic, 0, 1}}); check_parse_html("\r", "\r", {{td::MessageEntity::Type::Italic, 0, 1}}); check_parse_html("\n", "\n", {{td::MessageEntity::Type::Italic, 0, 1}}); check_parse_html("➡️ ➡️➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Spoiler, 5, 5}, {td::MessageEntity::Type::Bold, 10, 5}}); check_parse_html("🏟 🏟🏟 <🏟", "🏟 🏟🏟 <🏟", {{td::MessageEntity::Type::Spoiler, 5, 6}}); check_parse_html("🏟 🏟🏟 ><🏟", "🏟 🏟🏟 ><🏟", {{td::MessageEntity::Type::Spoiler, 5, 7}, {td::MessageEntity::Type::Bold, 9, 3}}); check_parse_html("➡️ ➡️➡️ ➡️➡️ ➡️", "➡️ ➡️➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Spoiler, 5, 5}, {td::MessageEntity::Type::Bold, 10, 5}}); check_parse_html("🏟 🏟🏟 <🏟", "🏟 🏟🏟 <🏟", {{td::MessageEntity::Type::Spoiler, 5, 6}}); check_parse_html("🏟 🏟🏟 ><🏟", "🏟 🏟🏟 ><🏟", {{td::MessageEntity::Type::Spoiler, 5, 7}, {td::MessageEntity::Type::Bold, 9, 3}}); check_parse_html("\t", "\t", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}}); check_parse_html("\r", "\r", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}}); check_parse_html("\n", "\n", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}}); check_parse_html(" ", " ", {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Bold, 0, 1}, {td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Code, 1, 1}, {td::MessageEntity::Type::Bold, 1, 1}, {td::MessageEntity::Type::Italic, 1, 1}}); check_parse_html(" ", " ", {{td::MessageEntity::Type::Italic, 0, 3}, {td::MessageEntity::Type::Bold, 0, 1}, {td::MessageEntity::Type::Code, 2, 1}}); check_parse_html(" ", " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}}); check_parse_html(" ", " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}}); check_parse_html(" ", " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}}); check_parse_html(" ", " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/?<"}}); check_parse_html(" ", " ", {}); check_parse_html("telegram.org ", "telegram.org ", {}); check_parse_html("telegram.org", "telegram.org", {{td::MessageEntity::Type::TextUrl, 0, 12, "http://telegram.org/"}}); check_parse_html("https://telegram.org/asdsa?asdasdwe#12e3we", "https://telegram.org/asdsa?asdasdwe#12e3we", {{td::MessageEntity::Type::TextUrl, 0, 42, "https://telegram.org/asdsa?asdasdwe#12e3we"}}); check_parse_html("🏟 🏟<
🏟 🏟<", "🏟 🏟<🏟 🏟<",
                   {{td::MessageEntity::Type::Pre, 6, 6}});
  check_parse_html("🏟 🏟<🏟 🏟<", "🏟 🏟<🏟 🏟<",
                   {{td::MessageEntity::Type::Code, 6, 6}});
  check_parse_html("🏟 🏟<
🏟 🏟<", "🏟 🏟<🏟 🏟<",
                   {{td::MessageEntity::Type::Pre, 6, 6}, {td::MessageEntity::Type::Code, 6, 6}});
  check_parse_html("🏟 🏟<
🏟 🏟<", "🏟 🏟<🏟 🏟<",
                   {{td::MessageEntity::Type::Pre, 6, 6}, {td::MessageEntity::Type::Code, 6, 6}});
  check_parse_html("🏟 🏟<
🏟 🏟<", "🏟 🏟<🏟 🏟<",
                   {{td::MessageEntity::Type::PreCode, 6, 6, "fift"}});
  check_parse_html("🏟 🏟<
🏟 🏟<", "🏟 🏟<🏟 🏟<",
                   {{td::MessageEntity::Type::PreCode, 6, 6, "fift"}});
  check_parse_html("🏟 🏟<
🏟 🏟< ", "🏟 🏟<🏟 🏟< ",
                   {{td::MessageEntity::Type::Pre, 6, 7}, {td::MessageEntity::Type::Code, 6, 6}});
  check_parse_html("🏟 🏟<
 🏟 🏟<", "🏟 🏟< 🏟 🏟<",
                   {{td::MessageEntity::Type::Pre, 6, 7}, {td::MessageEntity::Type::Code, 7, 6}});
}

static void check_parse_markdown(td::string text, const td::string &result,
                                 const td::vector &entities) {
  auto r_entities = td::parse_markdown_v2(text);
  ASSERT_TRUE(r_entities.is_ok());
  ASSERT_EQ(entities, r_entities.ok());
  ASSERT_STREQ(result, text);
}

static void check_parse_markdown(td::string text, td::Slice error_message) {
  auto r_entities = td::parse_markdown_v2(text);
  ASSERT_TRUE(r_entities.is_error());
  ASSERT_EQ(400, r_entities.error().code());
  ASSERT_STREQ(error_message, r_entities.error().message());
}

TEST(MessageEntities, parse_markdown) {
  td::Slice reserved_characters("]()>#+-=|{}.!");
  td::Slice begin_characters("_*[~`");
  for (char c = 1; c < 126; c++) {
    if (begin_characters.find(c) != td::Slice::npos) {
      continue;
    }

    td::string text(1, c);
    if (reserved_characters.find(c) == td::Slice::npos) {
      check_parse_markdown(text, text, {});
    } else {
      check_parse_markdown(
          text, PSLICE() << "Character '" << c << "' is reserved and must be escaped with the preceding '\\'");

      td::string escaped_text = "\\" + text;
      check_parse_markdown(escaped_text, text, {});
    }
  }

  check_parse_markdown("🏟 🏟_abacaba", "Can't find end of Italic entity at byte offset 9");
  check_parse_markdown("🏟 🏟_abac * asd ", "Can't find end of Bold entity at byte offset 15");
  check_parse_markdown("🏟 🏟_abac * asd _", "Can't find end of Italic entity at byte offset 21");
  check_parse_markdown("🏟 🏟`", "Can't find end of Code entity at byte offset 9");
  check_parse_markdown("🏟 🏟```", "Can't find end of Pre entity at byte offset 9");
  check_parse_markdown("🏟 🏟```a", "Can't find end of Pre entity at byte offset 9");
  check_parse_markdown("🏟 🏟```a ", "Can't find end of PreCode entity at byte offset 9");
  check_parse_markdown("🏟 🏟__🏟 🏟_", "Can't find end of Italic entity at byte offset 20");
  check_parse_markdown("🏟 🏟_🏟 🏟__", "Can't find end of Underline entity at byte offset 19");
  check_parse_markdown("🏟 🏟```🏟 🏟`", "Can't find end of Code entity at byte offset 21");
  check_parse_markdown("🏟 🏟```🏟 🏟_", "Can't find end of PreCode entity at byte offset 9");
  check_parse_markdown("🏟 🏟```🏟 🏟\\`", "Can't find end of PreCode entity at byte offset 9");
  check_parse_markdown("[telegram\\.org](asd\\)", "Can't find end of a URL at byte offset 16");
  check_parse_markdown("[telegram\\.org](", "Can't find end of a URL at byte offset 16");
  check_parse_markdown("[telegram\\.org](asd", "Can't find end of a URL at byte offset 16");
  check_parse_markdown("🏟 🏟__🏟 _🏟___", "Can't find end of Italic entity at byte offset 23");
  check_parse_markdown("🏟 🏟__", "Can't find end of Underline entity at byte offset 9");
  check_parse_markdown("🏟 🏟||test\\|", "Can't find end of Spoiler entity at byte offset 9");

  check_parse_markdown("", "", {});
  check_parse_markdown("\\\\", "\\", {});
  check_parse_markdown("\\\\\\", "\\\\", {});
  check_parse_markdown("\\\\\\\\\\_\\*\\`", "\\\\_*`", {});
  check_parse_markdown("➡️ ➡️", "➡️ ➡️", {});
  check_parse_markdown("🏟 🏟``", "🏟 🏟", {});
  check_parse_markdown("🏟 🏟_abac \\* asd _", "🏟 🏟abac * asd ", {{td::MessageEntity::Type::Italic, 5, 11}});
  check_parse_markdown("🏟 \\.🏟_🏟\\. 🏟_", "🏟 .🏟🏟. 🏟", {{td::MessageEntity::Type::Italic, 6, 6}});
  check_parse_markdown("\\\\\\a\\b\\c\\d\\e\\f\\1\\2\\3\\4\\➡️\\", "\\abcdef1234\\➡️\\", {});
  check_parse_markdown("➡️ ➡️_➡️ ➡️_", "➡️ ➡️➡️ ➡️",
                       {{td::MessageEntity::Type::Italic, 5, 5}});
  check_parse_markdown("➡️ ➡️_➡️ ➡️_*➡️ ➡️*", "➡️ ➡️➡️ ➡️➡️ ➡️",
                       {{td::MessageEntity::Type::Italic, 5, 5}, {td::MessageEntity::Type::Bold, 10, 5}});
  check_parse_markdown("🏟 🏟_🏟 \\.🏟_", "🏟 🏟🏟 .🏟", {{td::MessageEntity::Type::Italic, 5, 6}});
  check_parse_markdown("🏟 🏟_🏟 *🏟*_", "🏟 🏟🏟 🏟",
                       {{td::MessageEntity::Type::Italic, 5, 5}, {td::MessageEntity::Type::Bold, 8, 2}});
  check_parse_markdown("🏟 🏟_🏟 __🏟___", "🏟 🏟🏟 🏟",
                       {{td::MessageEntity::Type::Italic, 5, 5}, {td::MessageEntity::Type::Underline, 8, 2}});
  check_parse_markdown("🏟 🏟__🏟 _🏟_ __", "🏟 🏟🏟 🏟 ",
                       {{td::MessageEntity::Type::Underline, 5, 6}, {td::MessageEntity::Type::Italic, 8, 2}});
  check_parse_markdown("🏟 🏟__🏟 _🏟_\\___", "🏟 🏟🏟 🏟_",
                       {{td::MessageEntity::Type::Underline, 5, 6}, {td::MessageEntity::Type::Italic, 8, 2}});
  check_parse_markdown("🏟 🏟`🏟 🏟```", "🏟 🏟🏟 🏟", {{td::MessageEntity::Type::Code, 5, 5}});
  check_parse_markdown("🏟 🏟```🏟 🏟```", "🏟 🏟 🏟",
                       {{td::MessageEntity::Type::PreCode, 5, 3, "🏟"}});
  check_parse_markdown("🏟 🏟```🏟\n🏟```", "🏟 🏟🏟",
                       {{td::MessageEntity::Type::PreCode, 5, 2, "🏟"}});
  check_parse_markdown("🏟 🏟```🏟\r🏟```", "🏟 🏟🏟",
                       {{td::MessageEntity::Type::PreCode, 5, 2, "🏟"}});
  check_parse_markdown("🏟 🏟```🏟\n\r🏟```", "🏟 🏟🏟",
                       {{td::MessageEntity::Type::PreCode, 5, 2, "🏟"}});
  check_parse_markdown("🏟 🏟```🏟\r\n🏟```", "🏟 🏟🏟",
                       {{td::MessageEntity::Type::PreCode, 5, 2, "🏟"}});
  check_parse_markdown("🏟 🏟```🏟\n\n🏟```", "🏟 🏟\n🏟",
                       {{td::MessageEntity::Type::PreCode, 5, 3, "🏟"}});
  check_parse_markdown("🏟 🏟```🏟\r\r🏟```", "🏟 🏟\r🏟",
                       {{td::MessageEntity::Type::PreCode, 5, 3, "🏟"}});
  check_parse_markdown("🏟 🏟```🏟 \\\\\\`🏟```", "🏟 🏟 \\`🏟",
                       {{td::MessageEntity::Type::PreCode, 5, 5, "🏟"}});
  check_parse_markdown("🏟 🏟**", "🏟 🏟", {});
  check_parse_markdown("||test||", "test", {{td::MessageEntity::Type::Spoiler, 0, 4}});
  check_parse_markdown("🏟 🏟``", "🏟 🏟", {});
  check_parse_markdown("🏟 🏟``````", "🏟 🏟", {});
  check_parse_markdown("🏟 🏟____", "🏟 🏟", {});
  check_parse_markdown("`_* *_`__*` `*__", "_* *_ ",
                       {{td::MessageEntity::Type::Code, 0, 5},
                        {td::MessageEntity::Type::Code, 5, 1},
                        {td::MessageEntity::Type::Bold, 5, 1},
                        {td::MessageEntity::Type::Underline, 5, 1}});
  check_parse_markdown("_* * ` `_", "   ",
                       {{td::MessageEntity::Type::Italic, 0, 3},
                        {td::MessageEntity::Type::Bold, 0, 1},
                        {td::MessageEntity::Type::Code, 2, 1}});
  check_parse_markdown("[](telegram.org)", "", {});
  check_parse_markdown("[ ](telegram.org)", " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}});
  check_parse_markdown("[ ](as)", " ", {});
  check_parse_markdown("[telegram\\.org]", "telegram.org",
                       {{td::MessageEntity::Type::TextUrl, 0, 12, "http://telegram.org/"}});
  check_parse_markdown("[telegram\\.org]a", "telegram.orga",
                       {{td::MessageEntity::Type::TextUrl, 0, 12, "http://telegram.org/"}});
  check_parse_markdown("[telegram\\.org](telegram.dog)", "telegram.org",
                       {{td::MessageEntity::Type::TextUrl, 0, 12, "http://telegram.dog/"}});
  check_parse_markdown("[telegram\\.org](https://telegram.dog?)", "telegram.org",
                       {{td::MessageEntity::Type::TextUrl, 0, 12, "https://telegram.dog/?"}});
  check_parse_markdown("[telegram\\.org](https://telegram.dog?\\\\\\()", "telegram.org",
                       {{td::MessageEntity::Type::TextUrl, 0, 12, "https://telegram.dog/?\\("}});
  check_parse_markdown("[telegram\\.org]()", "telegram.org", {});
  check_parse_markdown("[telegram\\.org](asdasd)", "telegram.org", {});
  check_parse_markdown("[telegram\\.org](tg:user?id=123456)", "telegram.org",
                       {{0, 12, td::UserId(static_cast(123456))}});
}

static void check_parse_markdown_v3(td::string text, td::vector entities,
                                    const td::string &result_text, const td::vector &result_entities,
                                    bool fix = false) {
  auto parsed_text = td::parse_markdown_v3({std::move(text), std::move(entities)});
  if (fix) {
    ASSERT_TRUE(td::fix_formatted_text(parsed_text.text, parsed_text.entities, true, true, true, true, true).is_ok());
  }
  ASSERT_STREQ(result_text, parsed_text.text);
  ASSERT_EQ(result_entities, parsed_text.entities);
  if (fix) {
    auto markdown_text = td::get_markdown_v3(parsed_text);
    ASSERT_TRUE(parsed_text == markdown_text || parsed_text == td::parse_markdown_v3(markdown_text));
  }
}

static void check_parse_markdown_v3(td::string text, const td::string &result_text,
                                    const td::vector &result_entities, bool fix = false) {
  check_parse_markdown_v3(std::move(text), td::vector(), result_text, result_entities, fix);
}

TEST(MessageEntities, parse_markdown_v3) {
  check_parse_markdown_v3("🏟````🏟``🏟`aba🏟```c🏟`aba🏟 daba🏟```c🏟`aba🏟```🏟 `🏟``🏟```",
                          "🏟````🏟``🏟aba🏟```c🏟aba🏟 daba🏟c🏟`aba🏟🏟 `🏟``🏟```",
                          {{td::MessageEntity::Type::Code, 12, 11}, {td::MessageEntity::Type::Pre, 35, 9}});
  check_parse_markdown_v3(
      "🏟````🏟``🏟`aba🏟```c🏟`aba🏟 daba🏟```c🏟`aba🏟🏟```🏟 `🏟``🏟```",
      {{td::MessageEntity::Type::Italic, 12, 1},
       {td::MessageEntity::Type::Italic, 44, 1},
       {td::MessageEntity::Type::Bold, 45, 1},
       {td::MessageEntity::Type::Bold, 49, 2}},
      "🏟````🏟``🏟`aba🏟c🏟`aba🏟 daba🏟c🏟`aba🏟🏟🏟 `🏟``🏟",
      {{td::MessageEntity::Type::Italic, 12, 1},
       {td::MessageEntity::Type::Pre, 18, 16},
       {td::MessageEntity::Type::Italic, 38, 1},
       {td::MessageEntity::Type::Bold, 39, 1},
       {td::MessageEntity::Type::Bold, 43, 2},
       {td::MessageEntity::Type::Pre, 45, 10}});
  check_parse_markdown_v3("` `", " ", {{td::MessageEntity::Type::Code, 0, 1}});
  check_parse_markdown_v3("`\n`", "\n", {{td::MessageEntity::Type::Code, 0, 1}});
  check_parse_markdown_v3("` `a", " a", {{td::MessageEntity::Type::Code, 0, 1}}, true);
  check_parse_markdown_v3("`\n`a", "\na", {{td::MessageEntity::Type::Code, 0, 1}}, true);
  check_parse_markdown_v3("``", "``", {});
  check_parse_markdown_v3("`a````b```", "`a````b```", {});
  check_parse_markdown_v3("ab", {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}}, "ab",
                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}});

  check_parse_markdown_v3("[a](b[c](t.me)", "[a](b[c](t.me)", {});
  check_parse_markdown_v3("[](t.me)", "[](t.me)", {});
  check_parse_markdown_v3("[ ](t.me)", " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}});
  check_parse_markdown_v3("[ ](t.me)", "", {}, true);
  check_parse_markdown_v3("[ ](t.me)a", " a", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}}, true);
  check_parse_markdown_v3(
      "[ ](t.me) [ ](t.me)",
      {{td::MessageEntity::Type::TextUrl, 8, 1, "http://t.me/"}, {10, 1, td::UserId(static_cast(1))}},
      "[ ](t.me) [ ](t.me)",
      {{td::MessageEntity::Type::TextUrl, 8, 1, "http://t.me/"}, {10, 1, td::UserId(static_cast(1))}});
  check_parse_markdown_v3("[\n](t.me)", "\n", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}});
  check_parse_markdown_v3("[\n](t.me)a", "\na", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}}, true);
  check_parse_markdown_v3("asd[abcd](google.com)", {{td::MessageEntity::Type::Italic, 0, 5}}, "asdabcd",
                          {{td::MessageEntity::Type::Italic, 0, 3},
                           {td::MessageEntity::Type::TextUrl, 3, 4, "http://google.com/"},
                           {td::MessageEntity::Type::Italic, 3, 1}});
  check_parse_markdown_v3("asd[abcd](google.com)efg[hi](https://t.me?t=1#h)e",
                          {{td::MessageEntity::Type::Italic, 0, 5}, {td::MessageEntity::Type::Italic, 18, 31}},
                          "asdabcdefghie",
                          {{td::MessageEntity::Type::Italic, 0, 3},
                           {td::MessageEntity::Type::TextUrl, 3, 4, "http://google.com/"},
                           {td::MessageEntity::Type::Italic, 3, 1},
                           {td::MessageEntity::Type::Italic, 7, 3},
                           {td::MessageEntity::Type::TextUrl, 10, 2, "https://t.me/?t=1#h"},
                           {td::MessageEntity::Type::Italic, 10, 2},
                           {td::MessageEntity::Type::Italic, 12, 1}});
  check_parse_markdown_v3(
      "🏟🏟🏟[🏟🏟🏟🏟🏟](www.🤙.tk#1)🤙🤙🤙[🏟🏟🏟🏟](www.🤙.tk#2)🤙🤙🤙["
      "🏟🏟🏟🏟](www.🤙.tk#3)🏟🏟🏟[🏟🏟🏟🏟](www.🤙.tk#4)🤙🤙",
      "🏟🏟🏟🏟🏟🏟🏟🏟🤙🤙🤙🏟🏟🏟🏟🤙🤙🤙🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟"
      "🏟🤙🤙",
      {{td::MessageEntity::Type::TextUrl, 6, 10, "http://www.🤙.tk/#1"},
       {td::MessageEntity::Type::TextUrl, 22, 8, "http://www.🤙.tk/#2"},
       {td::MessageEntity::Type::TextUrl, 36, 8, "http://www.🤙.tk/#3"},
       {td::MessageEntity::Type::TextUrl, 50, 8, "http://www.🤙.tk/#4"}});
  check_parse_markdown_v3(
      "[🏟🏟🏟🏟🏟](www.🤙.tk#1)[🏟🏟🏟🏟](www.🤙.tk#2)[🏟🏟🏟🏟](www.🤙.tk#3)["
      "🏟🏟🏟🏟](www.🤙.tk#4)",
      "🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟",
      {{td::MessageEntity::Type::TextUrl, 0, 10, "http://www.🤙.tk/#1"},
       {td::MessageEntity::Type::TextUrl, 10, 8, "http://www.🤙.tk/#2"},
       {td::MessageEntity::Type::TextUrl, 18, 8, "http://www.🤙.tk/#3"},
       {td::MessageEntity::Type::TextUrl, 26, 8, "http://www.🤙.tk/#4"}});
  check_parse_markdown_v3(
      "🏟🏟🏟[🏟🏟🏟🏟🏟](www.🤙.tk)🤙🤙🤙[🏟🏟🏟🏟](www.🤙.tk)🤙🤙🤙["
      "🏟🏟🏟🏟](www.🤙.tk)🏟🏟🏟[🏟🏟🏟🏟](www.🤙.tk)🤙🤙",
      {{td::MessageEntity::Type::Bold, 0, 2},
       {td::MessageEntity::Type::Bold, 4, 2},
       {td::MessageEntity::Type::Bold, 7, 2},
       {td::MessageEntity::Type::Bold, 11, 2},
       {td::MessageEntity::Type::Bold, 15, 2},
       {td::MessageEntity::Type::Bold, 18, 2},
       {td::MessageEntity::Type::Bold, 26, 2},
       {31, 2, td::UserId(static_cast(1))},
       {td::MessageEntity::Type::Bold, 35, 1},
       {td::MessageEntity::Type::Bold, 44, 2},
       {td::MessageEntity::Type::Bold, 50, 2},
       {td::MessageEntity::Type::Bold, 54, 2},
       {56, 2, td::UserId(static_cast(2))},
       {td::MessageEntity::Type::Bold, 58, 7},
       {60, 2, td::UserId(static_cast(3))},
       {td::MessageEntity::Type::Bold, 67, 7},
       {td::MessageEntity::Type::Bold, 80, 7},
       {td::MessageEntity::Type::Bold, 89, 25}},
      "🏟🏟🏟🏟🏟🏟🏟🏟🤙🤙🤙🏟🏟🏟🏟🤙🤙🤙🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟"
      "🏟🤙🤙",
      {{td::MessageEntity::Type::Bold, 0, 2},
       {td::MessageEntity::Type::Bold, 4, 2},
       {td::MessageEntity::Type::TextUrl, 6, 10, "http://www.🤙.tk/"},
       {td::MessageEntity::Type::Bold, 6, 2},
       {td::MessageEntity::Type::Bold, 10, 2},
       {td::MessageEntity::Type::Bold, 14, 2},
       {18, 2, td::UserId(static_cast(1))},
       {td::MessageEntity::Type::TextUrl, 22, 8, "http://www.🤙.tk/"},
       {30, 2, td::UserId(static_cast(2))},
       {td::MessageEntity::Type::Bold, 32, 2},
       {34, 2, td::UserId(static_cast(3))},
       {td::MessageEntity::Type::Bold, 34, 2},
       {td::MessageEntity::Type::TextUrl, 36, 8, "http://www.🤙.tk/"},
       {td::MessageEntity::Type::Bold, 36, 2},
       {td::MessageEntity::Type::Bold, 40, 4},
       {td::MessageEntity::Type::Bold, 44, 4},
       {td::MessageEntity::Type::TextUrl, 50, 8, "http://www.🤙.tk/"},
       {td::MessageEntity::Type::Bold, 50, 8},
       {td::MessageEntity::Type::Bold, 58, 4}});
  check_parse_markdown_v3("[`a`](t.me) [b](t.me)", {{td::MessageEntity::Type::Code, 13, 1}}, "[a](t.me) [b](t.me)",
                          {{td::MessageEntity::Type::Code, 1, 1}, {td::MessageEntity::Type::Code, 11, 1}});
  check_parse_markdown_v3(
      "[text](example.com)",
      {{td::MessageEntity::Type::Strikethrough, 0, 1}, {td::MessageEntity::Type::Strikethrough, 5, 14}}, "text",
      {{td::MessageEntity::Type::TextUrl, 0, 4, "http://example.com/"}});
  check_parse_markdown_v3("[text](example.com)",
                          {{td::MessageEntity::Type::Spoiler, 0, 1}, {td::MessageEntity::Type::Spoiler, 5, 14}}, "text",
                          {{td::MessageEntity::Type::TextUrl, 0, 4, "http://example.com/"}});

  check_parse_markdown_v3("🏟[🏟](t.me) `🏟` [🏟](t.me) `a`", "🏟🏟 🏟 🏟 a",
                          {{td::MessageEntity::Type::TextUrl, 2, 2, "http://t.me/"},
                           {td::MessageEntity::Type::Code, 5, 2},
                           {td::MessageEntity::Type::TextUrl, 8, 2, "http://t.me/"},
                           {td::MessageEntity::Type::Code, 11, 1}});

  check_parse_markdown_v3("__ __", " ", {{td::MessageEntity::Type::Italic, 0, 1}});
  check_parse_markdown_v3("__\n__", "\n", {{td::MessageEntity::Type::Italic, 0, 1}});
  check_parse_markdown_v3("__ __a", " a", {}, true);
  check_parse_markdown_v3("__\n__a", "\na", {}, true);
  check_parse_markdown_v3("**** __a__ **b** ~~c~~ ||d||", "**** a b c d",
                          {{td::MessageEntity::Type::Italic, 5, 1},
                           {td::MessageEntity::Type::Bold, 7, 1},
                           {td::MessageEntity::Type::Strikethrough, 9, 1},
                           {td::MessageEntity::Type::Spoiler, 11, 1}});
  check_parse_markdown_v3("тест __аааа__ **бббб** ~~вввв~~ ||гггг||", "тест аааа бббб вввв гггг",
                          {{td::MessageEntity::Type::Italic, 5, 4},
                           {td::MessageEntity::Type::Bold, 10, 4},
                           {td::MessageEntity::Type::Strikethrough, 15, 4},
                           {td::MessageEntity::Type::Spoiler, 20, 4}});
  check_parse_markdown_v3("___a___ ***b** ~c~~", "___a___ ***b** ~c~~", {});
  check_parse_markdown_v3(
      "__asd[ab__cd](t.me)", "asdabcd",
      {{td::MessageEntity::Type::Italic, 0, 5}, {td::MessageEntity::Type::TextUrl, 3, 4, "http://t.me/"}});
  check_parse_markdown_v3("__asd[ab__cd](t.me)", "asdabcd",
                          {{td::MessageEntity::Type::Italic, 0, 3},
                           {td::MessageEntity::Type::TextUrl, 3, 4, "http://t.me/"},
                           {td::MessageEntity::Type::Italic, 3, 2}},
                          true);
  check_parse_markdown_v3("__a #test__test", "__a #test__test", {});
  check_parse_markdown_v3("a #testtest", {{td::MessageEntity::Type::Italic, 0, 7}}, "a #testtest",
                          {{td::MessageEntity::Type::Italic, 0, 7}});

  // TODO parse_markdown_v3 is not idempotent now, which is bad
  check_parse_markdown_v3(
      "~~**~~__**a__", {{td::MessageEntity::Type::Strikethrough, 2, 1}, {td::MessageEntity::Type::Bold, 6, 1}},
      "**__**a__", {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}}, true);
  check_parse_markdown_v3("**__**a__",
                          {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}},
                          "__a__", {{td::MessageEntity::Type::Bold, 0, 2}}, true);
  check_parse_markdown_v3("__a__", {{td::MessageEntity::Type::Bold, 0, 2}}, "a",
                          {{td::MessageEntity::Type::Italic, 0, 1}}, true);
  check_parse_markdown_v3("~~__~~#test__test", "__#test__test", {{td::MessageEntity::Type::Strikethrough, 0, 2}});
  check_parse_markdown_v3("__#test__test", {{td::MessageEntity::Type::Strikethrough, 0, 2}}, "#testtest",
                          {{td::MessageEntity::Type::Italic, 0, 5}});

  check_parse_markdown_v3(
      "~~**~~||**a||", {{td::MessageEntity::Type::Strikethrough, 2, 1}, {td::MessageEntity::Type::Bold, 6, 1}},
      "**||**a||", {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}}, true);
  check_parse_markdown_v3("**||**a||",
                          {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}},
                          "||a||", {{td::MessageEntity::Type::Bold, 0, 2}}, true);
  check_parse_markdown_v3("||a||", {{td::MessageEntity::Type::Bold, 0, 2}}, "a",
                          {{td::MessageEntity::Type::Spoiler, 0, 1}}, true);
  check_parse_markdown_v3("~~||~~#test||test", "#testtest", {{td::MessageEntity::Type::Spoiler, 0, 5}});
  check_parse_markdown_v3("||#test||test", {{td::MessageEntity::Type::Strikethrough, 0, 2}}, "#testtest",
                          {{td::MessageEntity::Type::Spoiler, 0, 5}});

  check_parse_markdown_v3("__[ab_](t.me)_", "__ab__", {{td::MessageEntity::Type::TextUrl, 2, 3, "http://t.me/"}});
  check_parse_markdown_v3(
      "__[ab__](t.me)_", "ab_",
      {{td::MessageEntity::Type::TextUrl, 0, 2, "http://t.me/"}, {td::MessageEntity::Type::Italic, 0, 2}});
  check_parse_markdown_v3("__[__ab__](t.me)__", "____ab____",
                          {{td::MessageEntity::Type::TextUrl, 2, 6, "http://t.me/"}});
  check_parse_markdown_v3(
      "__[__ab__](t.me)a__", "____aba",
      {{td::MessageEntity::Type::TextUrl, 2, 4, "http://t.me/"}, {td::MessageEntity::Type::Italic, 6, 1}});
  check_parse_markdown_v3("`a` __ab__", {{td::MessageEntity::Type::Bold, 6, 3}}, "a __ab__",
                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Bold, 4, 3}});
  check_parse_markdown_v3("`a` __ab__", {{td::MessageEntity::Type::Underline, 5, 1}}, "a __ab__",
                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Underline, 3, 1}});

  check_parse_markdown_v3("||[ab|](t.me)|", "||ab||", {{td::MessageEntity::Type::TextUrl, 2, 3, "http://t.me/"}});
  check_parse_markdown_v3(
      "||[ab||](t.me)|", "ab|",
      {{td::MessageEntity::Type::TextUrl, 0, 2, "http://t.me/"}, {td::MessageEntity::Type::Spoiler, 0, 2}});
  check_parse_markdown_v3("||[||ab||](t.me)||", "||||ab||||",
                          {{td::MessageEntity::Type::TextUrl, 2, 6, "http://t.me/"}});
  check_parse_markdown_v3(
      "||[||ab||](t.me)a||", "||||aba",
      {{td::MessageEntity::Type::TextUrl, 2, 4, "http://t.me/"}, {td::MessageEntity::Type::Spoiler, 6, 1}});
  check_parse_markdown_v3("`a` ||ab||", {{td::MessageEntity::Type::Bold, 6, 3}}, "a ||ab||",
                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Bold, 4, 3}});
  check_parse_markdown_v3("`a` ||ab||", {{td::MessageEntity::Type::Underline, 5, 1}}, "a ||ab||",
                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Underline, 3, 1}});

  check_parse_markdown_v3("`a` @test__test__test", "a @test__test__test", {{td::MessageEntity::Type::Code, 0, 1}});
  check_parse_markdown_v3("`a` #test__test__test", "a #test__test__test", {{td::MessageEntity::Type::Code, 0, 1}});
  check_parse_markdown_v3("`a` __@test_test_test__", "a @test_test_test",
                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Italic, 2, 15}});
  check_parse_markdown_v3("`a` __#test_test_test__", "a #test_test_test",
                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Italic, 2, 15}});
  check_parse_markdown_v3("[a](t.me) __@test**test**test__", "a @testtesttest",
                          {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"},
                           {td::MessageEntity::Type::Italic, 2, 13},
                           {td::MessageEntity::Type::Bold, 7, 4}});
  check_parse_markdown_v3("[a](t.me) __#test~~test~~test__", "a #testtesttest",
                          {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"},
                           {td::MessageEntity::Type::Italic, 2, 13},
                           {td::MessageEntity::Type::Strikethrough, 7, 4}});
  check_parse_markdown_v3("[a](t.me) __@test__test__test__", "a @testtesttest",
                          {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"},
                           {td::MessageEntity::Type::Italic, 2, 5},
                           {td::MessageEntity::Type::Italic, 11, 4}});
  check_parse_markdown_v3("__**~~__gh**~~", "gh",
                          {{td::MessageEntity::Type::Bold, 0, 2}, {td::MessageEntity::Type::Strikethrough, 0, 2}});
  check_parse_markdown_v3("__ab**cd~~ef__gh**ij~~", "abcdefghij",
                          {{td::MessageEntity::Type::Italic, 0, 6},
                           {td::MessageEntity::Type::Bold, 2, 6},
                           {td::MessageEntity::Type::Strikethrough, 4, 6}});
  check_parse_markdown_v3("__ab**cd~~ef||gh__ij**kl~~mn||", "abcdefghijklmn",
                          {{td::MessageEntity::Type::Italic, 0, 2},
                           {td::MessageEntity::Type::Bold, 2, 2},
                           {td::MessageEntity::Type::Italic, 2, 2},
                           {td::MessageEntity::Type::Bold, 4, 2},
                           {td::MessageEntity::Type::Italic, 4, 2},
                           {td::MessageEntity::Type::Strikethrough, 4, 2},
                           {td::MessageEntity::Type::Spoiler, 6, 8},
                           {td::MessageEntity::Type::Strikethrough, 6, 6},
                           {td::MessageEntity::Type::Bold, 6, 4},
                           {td::MessageEntity::Type::Italic, 6, 2}},
                          true);
  check_parse_markdown_v3("__ab**[cd~~ef__](t.me)gh**ij~~", "abcdefghij",
                          {{td::MessageEntity::Type::Italic, 0, 6},
                           {td::MessageEntity::Type::Bold, 2, 6},
                           {td::MessageEntity::Type::TextUrl, 2, 4, "http://t.me/"},
                           {td::MessageEntity::Type::Strikethrough, 4, 6}});
  check_parse_markdown_v3("__ab**[cd~~e](t.me)f__gh**ij~~", "abcdefghij",
                          {{td::MessageEntity::Type::Italic, 0, 6},
                           {td::MessageEntity::Type::Bold, 2, 6},
                           {td::MessageEntity::Type::TextUrl, 2, 3, "http://t.me/"},
                           {td::MessageEntity::Type::Strikethrough, 4, 6}});
  check_parse_markdown_v3("__ab**[cd~~](t.me)ef__gh**ij~~", "abcdefghij",
                          {{td::MessageEntity::Type::Italic, 0, 6},
                           {td::MessageEntity::Type::Bold, 2, 6},
                           {td::MessageEntity::Type::TextUrl, 2, 2, "http://t.me/"},
                           {td::MessageEntity::Type::Strikethrough, 4, 6}});
  check_parse_markdown_v3("[__**bold italic link**__](example.com)", "bold italic link",
                          {{td::MessageEntity::Type::TextUrl, 0, 16, "http://example.com/"},
                           {td::MessageEntity::Type::Bold, 0, 16},
                           {td::MessageEntity::Type::Italic, 0, 16}});
  check_parse_markdown_v3(
      "__italic__ ~~strikethrough~~ **bold** `code` ```pre``` __[italic__ text_url](telegram.org) __italic**bold "
      "italic__bold**__italic__ ~~strikethrough~~ **bold** `code` ```pre``` __[italic__ text_url](telegram.org) "
      "__italic**bold italic__bold** ||spoiler||",
      "italic strikethrough bold code pre italic text_url italicbold italicbolditalic strikethrough bold code pre "
      "italic text_url italicbold italicbold spoiler",
      {{td::MessageEntity::Type::Italic, 0, 6},
       {td::MessageEntity::Type::Strikethrough, 7, 13},
       {td::MessageEntity::Type::Bold, 21, 4},
       {td::MessageEntity::Type::Code, 26, 4},
       {td::MessageEntity::Type::Pre, 31, 3},
       {td::MessageEntity::Type::TextUrl, 35, 15, "http://telegram.org/"},
       {td::MessageEntity::Type::Italic, 35, 6},
       {td::MessageEntity::Type::Italic, 51, 17},
       {td::MessageEntity::Type::Bold, 57, 15},
       {td::MessageEntity::Type::Italic, 72, 6},
       {td::MessageEntity::Type::Strikethrough, 79, 13},
       {td::MessageEntity::Type::Bold, 93, 4},
       {td::MessageEntity::Type::Code, 98, 4},
       {td::MessageEntity::Type::Pre, 103, 3},
       {td::MessageEntity::Type::TextUrl, 107, 15, "http://telegram.org/"},
       {td::MessageEntity::Type::Italic, 107, 6},
       {td::MessageEntity::Type::Italic, 123, 17},
       {td::MessageEntity::Type::Bold, 129, 15},
       {td::MessageEntity::Type::Spoiler, 145, 7}});

  td::vector parts{"a", " #test__a", "__", "**", "~~", "||", "[", "](t.me)", "`"};
  td::vector types{
      td::MessageEntity::Type::Bold,          td::MessageEntity::Type::Italic,  td::MessageEntity::Type::Underline,
      td::MessageEntity::Type::Strikethrough, td::MessageEntity::Type::Spoiler, td::MessageEntity::Type::Code,
      td::MessageEntity::Type::Pre,           td::MessageEntity::Type::PreCode, td::MessageEntity::Type::TextUrl,
      td::MessageEntity::Type::MentionName,   td::MessageEntity::Type::Cashtag};
  for (size_t test_n = 0; test_n < 1000; test_n++) {
    td::string str;
    int part_n = td::Random::fast(1, 200);
    for (int i = 0; i < part_n; i++) {
      str += parts[td::Random::fast(0, static_cast(parts.size()) - 1)];
    }
    td::vector entities;
    int entity_n = td::Random::fast(1, 20);
    for (int i = 0; i < entity_n; i++) {
      auto type = types[td::Random::fast(0, static_cast(types.size()) - 1)];
      td::int32 offset = td::Random::fast(0, static_cast(str.size()) - 1);
      auto max_length = static_cast(str.size() - offset);
      if ((test_n & 1) != 0 && max_length > 4) {
        max_length = 4;
      }
      td::int32 length = td::Random::fast(0, max_length);
      entities.emplace_back(type, offset, length);
    }

    td::FormattedText text{std::move(str), std::move(entities)};
    while (true) {
      ASSERT_TRUE(td::fix_formatted_text(text.text, text.entities, true, true, true, true, true).is_ok());
      auto parsed_text = td::parse_markdown_v3(text);
      ASSERT_TRUE(td::fix_formatted_text(parsed_text.text, parsed_text.entities, true, true, true, true, true).is_ok());
      if (parsed_text == text) {
        break;
      }
      text = std::move(parsed_text);
    }
    ASSERT_EQ(text, td::parse_markdown_v3(text));
    auto markdown_text = td::get_markdown_v3(text);
    ASSERT_TRUE(text == markdown_text || text == td::parse_markdown_v3(markdown_text));
  }
}

static void check_get_markdown_v3(const td::string &result_text, const td::vector &result_entities,
                                  td::string text, td::vector entities) {
  auto markdown_text = td::get_markdown_v3({std::move(text), std::move(entities)});
  ASSERT_STREQ(result_text, markdown_text.text);
  ASSERT_EQ(result_entities, markdown_text.entities);
}

TEST(MessageEntities, get_markdown_v3) {
  check_get_markdown_v3("``` ```", {}, " ", {{td::MessageEntity::Type::Pre, 0, 1}});
  check_get_markdown_v3("` `", {}, " ", {{td::MessageEntity::Type::Code, 0, 1}});
  check_get_markdown_v3("`\n`", {}, "\n", {{td::MessageEntity::Type::Code, 0, 1}});
  check_get_markdown_v3("ab", {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}}, "ab",
                        {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}});

  check_get_markdown_v3("[ ](http://t.me/)", {}, " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}});
  check_get_markdown_v3(
      "[ ]t.me[)](http://t.me/) [ ](t.me)", {{25, 1, td::UserId(static_cast(1))}}, "[ ]t.me) [ ](t.me)",
      {{td::MessageEntity::Type::TextUrl, 7, 1, "http://t.me/"}, {9, 1, td::UserId(static_cast(1))}});

  check_get_markdown_v3("__ __", {}, " ", {{td::MessageEntity::Type::Italic, 0, 1}});
  check_get_markdown_v3("** **", {}, " ", {{td::MessageEntity::Type::Bold, 0, 1}});
  check_get_markdown_v3("~~ ~~", {}, " ", {{td::MessageEntity::Type::Strikethrough, 0, 1}});
  check_get_markdown_v3("|| ||", {}, " ", {{td::MessageEntity::Type::Spoiler, 0, 1}});
  check_get_markdown_v3("__a__ **b** ~~c~~ ||d|| e", {{td::MessageEntity::Type::PreCode, 24, 1, "C++"}}, "a b c d e",
                        {{td::MessageEntity::Type::Italic, 0, 1},
                         {td::MessageEntity::Type::Bold, 2, 1},
                         {td::MessageEntity::Type::Strikethrough, 4, 1},
                         {td::MessageEntity::Type::Spoiler, 6, 1},
                         {td::MessageEntity::Type::PreCode, 8, 1, "C++"}});
  check_get_markdown_v3("`ab` ```cd``` ef", {{td::MessageEntity::Type::PreCode, 14, 2, "C++"}}, "ab cd ef",
                        {{td::MessageEntity::Type::Code, 0, 2},
                         {td::MessageEntity::Type::Pre, 3, 2},
                         {td::MessageEntity::Type::PreCode, 6, 2, "C++"}});
  check_get_markdown_v3("__asd__[__ab__cd](http://t.me/)", {}, "asdabcd",
                        {{td::MessageEntity::Type::Italic, 0, 3},
                         {td::MessageEntity::Type::TextUrl, 3, 4, "http://t.me/"},
                         {td::MessageEntity::Type::Italic, 3, 2}});

  check_get_markdown_v3("__ab", {{td::MessageEntity::Type::Italic, 3, 1}}, "__ab",
                        {{td::MessageEntity::Type::Italic, 3, 1}});
  check_get_markdown_v3("__ab__**__cd__**~~**__ef__gh**ij~~", {}, "abcdefghij",
                        {{td::MessageEntity::Type::Italic, 0, 2},
                         {td::MessageEntity::Type::Bold, 2, 2},
                         {td::MessageEntity::Type::Italic, 2, 2},
                         {td::MessageEntity::Type::Strikethrough, 4, 6},
                         {td::MessageEntity::Type::Bold, 4, 4},
                         {td::MessageEntity::Type::Italic, 4, 2}});
  check_get_markdown_v3("[**__bold italic link__**](http://example.com/)", {}, "bold italic link",
                        {{td::MessageEntity::Type::TextUrl, 0, 16, "http://example.com/"},
                         {td::MessageEntity::Type::Bold, 0, 16},
                         {td::MessageEntity::Type::Italic, 0, 16}});
}