// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. import 'package:expect/expect.dart'; import 'dart:convert'; import 'dart:typed_data' show Uint8List; const String testEnglishPhrase = "The quick brown fox jumps over the lazy dog."; const List testEnglishUtf8 = const [ 0x54, 0x68, 0x65, 0x20, 0x71, 0x75, 0x69, 0x63, 0x6b, 0x20, 0x62, 0x72, 0x6f, 0x77, 0x6e, 0x20, 0x66, 0x6f, 0x78, 0x20, 0x6a, 0x75, 0x6d, 0x70, 0x73, 0x20, 0x6f, 0x76, 0x65, 0x72, 0x20, 0x74, 0x68, 0x65, 0x20, 0x6c, 0x61, 0x7a, 0x79, 0x20, 0x64, 0x6f, 0x67, 0x2e ]; const String testDanishPhrase = "Quizdeltagerne spiste jordbær med " "fløde mens cirkusklovnen Wolther spillede på xylofon."; const List testDanishUtf8 = const [ 0x51, 0x75, 0x69, 0x7a, 0x64, 0x65, 0x6c, 0x74, 0x61, 0x67, 0x65, 0x72, 0x6e, 0x65, 0x20, 0x73, 0x70, 0x69, 0x73, 0x74, 0x65, 0x20, 0x6a, 0x6f, 0x72, 0x64, 0x62, 0xc3, 0xa6, 0x72, 0x20, 0x6d, 0x65, 0x64, 0x20, 0x66, 0x6c, 0xc3, 0xb8, 0x64, 0x65, 0x20, 0x6d, 0x65, 0x6e, 0x73, 0x20, 0x63, 0x69, 0x72, 0x6b, 0x75, 0x73, 0x6b, 0x6c, 0x6f, 0x76, 0x6e, 0x65, 0x6e, 0x20, 0x57, 0x6f, 0x6c, 0x74, 0x68, 0x65, 0x72, 0x20, 0x73, 0x70, 0x69, 0x6c, 0x6c, 0x65, 0x64, 0x65, 0x20, 0x70, 0xc3, 0xa5, 0x20, 0x78, 0x79, 0x6c, 0x6f, 0x66, 0x6f, 0x6e, 0x2e ]; // unusual formatting due to strange editor interaction w/ text direction. const String testHebrewPhrase = "דג סקרן שט בים מאוכזב ולפתע מצא לו חברה איך הקליטה"; const List testHebrewUtf8 = const [ 0xd7, 0x93, 0xd7, 0x92, 0x20, 0xd7, 0xa1, 0xd7, 0xa7, 0xd7, 0xa8, 0xd7, 0x9f, 0x20, 0xd7, 0xa9, 0xd7, 0x98, 0x20, 0xd7, 0x91, 0xd7, 0x99, 0xd7, 0x9d, 0x20, 0xd7, 0x9e, 0xd7, 0x90, 0xd7, 0x95, 0xd7, 0x9b, 0xd7, 0x96, 0xd7, 0x91, 0x20, 0xd7, 0x95, 0xd7, 0x9c, 0xd7, 0xa4, 0xd7, 0xaa, 0xd7, 0xa2, 0x20, 0xd7, 0x9e, 0xd7, 0xa6, 0xd7, 0x90, 0x20, 0xd7, 0x9c, 0xd7, 0x95, 0x20, 0xd7, 0x97, 0xd7, 0x91, 0xd7, 0xa8, 0xd7, 0x94, 0x20, 0xd7, 0x90, 0xd7, 0x99, 0xd7, 0x9a, 0x20, 0xd7, 0x94, 0xd7, 0xa7, 0xd7, 0x9c, 0xd7, 0x99, 0xd7, 0x98, 0xd7, 0x94 ]; const String testRussianPhrase = "Съешь же ещё этих мягких " "французских булок да выпей чаю"; const List testRussianUtf8 = const [ 0xd0, 0xa1, 0xd1, 0x8a, 0xd0, 0xb5, 0xd1, 0x88, 0xd1, 0x8c, 0x20, 0xd0, 0xb6, 0xd0, 0xb5, 0x20, 0xd0, 0xb5, 0xd1, 0x89, 0xd1, 0x91, 0x20, 0xd1, 0x8d, 0xd1, 0x82, 0xd0, 0xb8, 0xd1, 0x85, 0x20, 0xd0, 0xbc, 0xd1, 0x8f, 0xd0, 0xb3, 0xd0, 0xba, 0xd0, 0xb8, 0xd1, 0x85, 0x20, 0xd1, 0x84, 0xd1, 0x80, 0xd0, 0xb0, 0xd0, 0xbd, 0xd1, 0x86, 0xd1, 0x83, 0xd0, 0xb7, 0xd1, 0x81, 0xd0, 0xba, 0xd0, 0xb8, 0xd1, 0x85, 0x20, 0xd0, 0xb1, 0xd1, 0x83, 0xd0, 0xbb, 0xd0, 0xbe, 0xd0, 0xba, 0x20, 0xd0, 0xb4, 0xd0, 0xb0, 0x20, 0xd0, 0xb2, 0xd1, 0x8b, 0xd0, 0xbf, 0xd0, 0xb5, 0xd0, 0xb9, 0x20, 0xd1, 0x87, 0xd0, 0xb0, 0xd1, 0x8e ]; const String testGreekPhrase = "Γαζέες καὶ μυρτιὲς δὲν θὰ βρῶ πιὰ " "στὸ χρυσαφὶ ξέφωτο"; const List testGreekUtf8 = const [ 0xce, 0x93, 0xce, 0xb1, 0xce, 0xb6, 0xce, 0xad, 0xce, 0xb5, 0xcf, 0x82, 0x20, 0xce, 0xba, 0xce, 0xb1, 0xe1, 0xbd, 0xb6, 0x20, 0xce, 0xbc, 0xcf, 0x85, 0xcf, 0x81, 0xcf, 0x84, 0xce, 0xb9, 0xe1, 0xbd, 0xb2, 0xcf, 0x82, 0x20, 0xce, 0xb4, 0xe1, 0xbd, 0xb2, 0xce, 0xbd, 0x20, 0xce, 0xb8, 0xe1, 0xbd, 0xb0, 0x20, 0xce, 0xb2, 0xcf, 0x81, 0xe1, 0xbf, 0xb6, 0x20, 0xcf, 0x80, 0xce, 0xb9, 0xe1, 0xbd, 0xb0, 0x20, 0xcf, 0x83, 0xcf, 0x84, 0xe1, 0xbd, 0xb8, 0x20, 0xcf, 0x87, 0xcf, 0x81, 0xcf, 0x85, 0xcf, 0x83, 0xce, 0xb1, 0xcf, 0x86, 0xe1, 0xbd, 0xb6, 0x20, 0xce, 0xbe, 0xce, 0xad, 0xcf, 0x86, 0xcf, 0x89, 0xcf, 0x84, 0xce, 0xbf ]; const String testKatakanaPhrase = "イロハニホヘト チリヌルヲ ワカヨタレソ " "ツネナラム ウヰノオクヤマ ケフコエテ アサキユメミシ ヱヒモセスン"; const List testKatakanaUtf8 = const [ 0xe3, 0x82, 0xa4, 0xe3, 0x83, 0xad, 0xe3, 0x83, 0x8f, 0xe3, 0x83, 0x8b, 0xe3, 0x83, 0x9b, 0xe3, 0x83, 0x98, 0xe3, 0x83, 0x88, 0x20, 0xe3, 0x83, 0x81, 0xe3, 0x83, 0xaa, 0xe3, 0x83, 0x8c, 0xe3, 0x83, 0xab, 0xe3, 0x83, 0xb2, 0x20, 0xe3, 0x83, 0xaf, 0xe3, 0x82, 0xab, 0xe3, 0x83, 0xa8, 0xe3, 0x82, 0xbf, 0xe3, 0x83, 0xac, 0xe3, 0x82, 0xbd, 0x20, 0xe3, 0x83, 0x84, 0xe3, 0x83, 0x8d, 0xe3, 0x83, 0x8a, 0xe3, 0x83, 0xa9, 0xe3, 0x83, 0xa0, 0x20, 0xe3, 0x82, 0xa6, 0xe3, 0x83, 0xb0, 0xe3, 0x83, 0x8e, 0xe3, 0x82, 0xaa, 0xe3, 0x82, 0xaf, 0xe3, 0x83, 0xa4, 0xe3, 0x83, 0x9e, 0x20, 0xe3, 0x82, 0xb1, 0xe3, 0x83, 0x95, 0xe3, 0x82, 0xb3, 0xe3, 0x82, 0xa8, 0xe3, 0x83, 0x86, 0x20, 0xe3, 0x82, 0xa2, 0xe3, 0x82, 0xb5, 0xe3, 0x82, 0xad, 0xe3, 0x83, 0xa6, 0xe3, 0x83, 0xa1, 0xe3, 0x83, 0x9f, 0xe3, 0x82, 0xb7, 0x20, 0xe3, 0x83, 0xb1, 0xe3, 0x83, 0x92, 0xe3, 0x83, 0xa2, 0xe3, 0x82, 0xbb, 0xe3, 0x82, 0xb9, 0xe3, 0x83, 0xb3 ]; void main() { testEncodeToUtf8(); String decodeUtf8List(List codeUnits) => utf8.decode(codeUnits); String decodeUtf8Uint8List(List codeUnits) => utf8.decode(new Uint8List.fromList(codeUnits)); testUtf8BytesToString(decodeUtf8List); testUtf8BytesToString(decodeUtf8Uint8List); List utf8ToRunes1(List codeUnits) { return utf8.decode(codeUnits, allowMalformed: true).runes.toList(); } List utf8ToRunes2(List codeUnits) { return utf8 .decode(new Uint8List.fromList(codeUnits), allowMalformed: true) .runes .toList(); } testUtf8bytesToCodepoints(utf8ToRunes1); testUtf8bytesToCodepoints(utf8ToRunes2); } void testEncodeToUtf8() { List encodeUtf8(String str) => utf8.encode(str); Expect.listEquals( testEnglishUtf8, encodeUtf8(testEnglishPhrase), "english to utf8"); Expect.listEquals( testDanishUtf8, encodeUtf8(testDanishPhrase), "encode danish to utf8"); Expect.listEquals( testHebrewUtf8, encodeUtf8(testHebrewPhrase), "Hebrew to utf8"); Expect.listEquals( testRussianUtf8, encodeUtf8(testRussianPhrase), "Russian to utf8"); Expect.listEquals( testGreekUtf8, encodeUtf8(testGreekPhrase), "Greek to utf8"); Expect.listEquals( testKatakanaUtf8, encodeUtf8(testKatakanaPhrase), "Katakana to utf8"); } void testUtf8bytesToCodepoints(List utf8ToRunes(List utf8)) { Expect.listEquals( [954, 972, 963, 956, 949], utf8ToRunes([0xce, 0xba, 0xcf, 0x8c, 0xcf, 0x83, 0xce, 0xbc, 0xce, 0xb5]), "κόσμε"); // boundary conditions: First possible sequence of a certain length Expect.listEquals([], utf8ToRunes([]), "no input"); Expect.listEquals([0x0], utf8ToRunes([0x0]), "0"); Expect.listEquals([0x80], utf8ToRunes([0xc2, 0x80]), "80"); Expect.listEquals([0x800], utf8ToRunes([0xe0, 0xa0, 0x80]), "800"); Expect.listEquals([0x10000], utf8ToRunes([0xf0, 0x90, 0x80, 0x80]), "10000"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf8, 0x88, 0x80, 0x80, 0x80]), "200000"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfc, 0x84, 0x80, 0x80, 0x80, 0x80]), "4000000"); // boundary conditions: Last possible sequence of a certain length Expect.listEquals([0x7f], utf8ToRunes([0x7f]), "7f"); Expect.listEquals([0x7ff], utf8ToRunes([0xdf, 0xbf]), "7ff"); Expect.listEquals([0xffff], utf8ToRunes([0xef, 0xbf, 0xbf]), "ffff"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf7, 0xbf, 0xbf, 0xbf]), "1fffff"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfb, 0xbf, 0xbf, 0xbf, 0xbf]), "3ffffff"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfd, 0xbf, 0xbf, 0xbf, 0xbf, 0xbf]), "4000000"); // other boundary conditions Expect.listEquals([0xd7ff], utf8ToRunes([0xed, 0x9f, 0xbf]), "d7ff"); Expect.listEquals([0xe000], utf8ToRunes([0xee, 0x80, 0x80]), "e000"); Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0xef, 0xbf, 0xbd]), "fffd"); Expect.listEquals( [0x10ffff], utf8ToRunes([0xf4, 0x8f, 0xbf, 0xbf]), "10ffff"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf4, 0x90, 0x80, 0x80]), "110000"); // unexpected continuation bytes Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0x80]), "80 => replacement character"); Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0xbf]), "bf => replacement character"); List allContinuationBytes = []; List matchingReplacementChars = []; for (int i = 0x80; i < 0xc0; i++) { allContinuationBytes.add(i); matchingReplacementChars.add(unicodeReplacementCharacterRune); } Expect.listEquals(matchingReplacementChars, utf8ToRunes(allContinuationBytes), "80 - bf => replacement character x 64"); List allFirstTwoByteSeq = []; matchingReplacementChars = []; for (int i = 0xc0; i < 0xe0; i++) { allFirstTwoByteSeq.addAll([i, 0x20]); matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]); } Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstTwoByteSeq), "c0 - df + space => replacement character + space x 32"); List allFirstThreeByteSeq = []; matchingReplacementChars = []; for (int i = 0xe0; i < 0xf0; i++) { allFirstThreeByteSeq.addAll([i, 0x20]); matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]); } Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstThreeByteSeq), "e0 - ef + space => replacement character x 16"); List allFirstFourByteSeq = []; matchingReplacementChars = []; for (int i = 0xf0; i < 0xf8; i++) { allFirstFourByteSeq.addAll([i, 0x20]); matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]); } Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstFourByteSeq), "f0 - f7 + space => replacement character x 8"); List allFirstFiveByteSeq = []; matchingReplacementChars = []; for (int i = 0xf8; i < 0xfc; i++) { allFirstFiveByteSeq.addAll([i, 0x20]); matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]); } Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstFiveByteSeq), "f8 - fb + space => replacement character x 4"); List allFirstSixByteSeq = []; matchingReplacementChars = []; for (int i = 0xfc; i < 0xfe; i++) { allFirstSixByteSeq.addAll([i, 0x20]); matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]); } Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstSixByteSeq), "fc - fd + space => replacement character x 2"); // Sequences with last continuation byte missing Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0xc2]), "2-byte sequence with last byte missing"); Expect.listEquals( [unicodeReplacementCharacterRune, unicodeReplacementCharacterRune], utf8ToRunes([0xe0, 0x80]), "3-byte sequence with last byte missing"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf0, 0x80, 0x80]), "4-byte sequence with last byte missing"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf8, 0x88, 0x80, 0x80]), "5-byte sequence with last byte missing"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfc, 0x80, 0x80, 0x80, 0x80]), "6-byte sequence with last byte missing"); Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0xdf]), "2-byte sequence with last byte missing (hi)"); Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0xef, 0xbf]), "3-byte sequence with last byte missing (hi)"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf7, 0xbf, 0xbf]), "4-byte sequence with last byte missing (hi)"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfb, 0xbf, 0xbf, 0xbf]), "5-byte sequence with last byte missing (hi)"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfd, 0xbf, 0xbf, 0xbf, 0xbf]), "6-byte sequence with last byte missing (hi)"); // Concatenation of incomplete sequences Expect.listEquals( [ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([ 0xc2, 0xe0, 0x80, 0xf0, 0x80, 0x80, 0xf8, 0x88, 0x80, 0x80, 0xfc, 0x80, 0x80, 0x80, 0x80, 0xdf, 0xef, // These two bytes form one incomplete sequence. 0xbf, // All others form one per byte. 0xf7, 0xbf, 0xbf, 0xfb, 0xbf, 0xbf, 0xbf, 0xfd, 0xbf, 0xbf, 0xbf, 0xbf ]), "Concatenation of incomplete sequences"); // Impossible bytes Expect.listEquals( [unicodeReplacementCharacterRune], utf8ToRunes([0xfe]), "fe"); Expect.listEquals( [unicodeReplacementCharacterRune], utf8ToRunes([0xff]), "ff"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfe, 0xfe, 0xff, 0xff]), "fe fe ff ff"); // Overlong sequences Expect.listEquals( [unicodeReplacementCharacterRune, unicodeReplacementCharacterRune], utf8ToRunes([0xc0, 0xaf]), "c0 af"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xe0, 0x80, 0xaf]), "e0 80 af"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf0, 0x80, 0x80, 0xaf]), "f0 80 80 af"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf8, 0x80, 0x80, 0x80, 0xaf]), "f8 80 80 80 af"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfc, 0x80, 0x80, 0x80, 0x80, 0xaf]), "fc 80 80 80 80 af"); Expect.listEquals( [unicodeReplacementCharacterRune, unicodeReplacementCharacterRune], utf8ToRunes([0xc1, 0xbf]), "c1 bf"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xe0, 0x9f, 0xbf]), "e0 9f bf"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf0, 0x8f, 0xbf, 0xbf]), "f0 8f bf bf"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf8, 0x87, 0xbf, 0xbf, 0xbf]), "f8 87 bf bf bf"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfc, 0x83, 0xbf, 0xbf, 0xbf, 0xbf]), "fc 83 bf bf bf bf"); Expect.listEquals( [unicodeReplacementCharacterRune, unicodeReplacementCharacterRune], utf8ToRunes([0xc0, 0x80]), "c0 80"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xe0, 0x80, 0x80]), "e0 80 80"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf0, 0x80, 0x80, 0x80]), "f0 80 80 80"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xf8, 0x80, 0x80, 0x80, 0x80]), "f8 80 80 80 80"); Expect.listEquals([ unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune, unicodeReplacementCharacterRune ], utf8ToRunes([0xfc, 0x80, 0x80, 0x80, 0x80, 0x80]), "fc 80 80 80 80 80"); // Other illegal code positions (???) Expect.listEquals([0xfffe], utf8ToRunes([0xef, 0xbf, 0xbe]), "U+FFFE"); Expect.listEquals([0xffff], utf8ToRunes([0xef, 0xbf, 0xbf]), "U+FFFF"); } void testUtf8BytesToString(String decodeUtf8(List input)) { Expect.stringEquals( testEnglishPhrase, decodeUtf8(testEnglishUtf8), "English"); Expect.stringEquals(testDanishPhrase, decodeUtf8(testDanishUtf8), "Danish"); Expect.stringEquals(testHebrewPhrase, decodeUtf8(testHebrewUtf8), "Hebrew"); Expect.stringEquals( testRussianPhrase, decodeUtf8(testRussianUtf8), "Russian"); Expect.stringEquals(testGreekPhrase, decodeUtf8(testGreekUtf8), "Greek"); Expect.stringEquals( testKatakanaPhrase, decodeUtf8(testKatakanaUtf8), "Katakana"); }