Move unicode tests to utf package.

pkg/utf/test/utf32_test.dart

+// 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 'package:utf/utf.dart';
+
+const String testKoreanCharSubset = """
+가각갂갃간갅갆갇갈갉갊갋갌갍갎갏감갑값갓갔강갖갗갘같갚갛
+개객갞갟갠갡갢갣갤갥갦갧갨갩갪갫갬갭갮갯갰갱갲갳갴갵갶갷
+갸갹갺갻갼갽갾갿걀걁걂걃걄걅걆걇걈걉걊걋걌걍걎걏걐걑걒걓""";
+
+const String testHanTwice = "二";
+
+const List<int> testKoreanCharSubsetUtf32beBom = const<int>[
+    0x00, 0x00, 0xfe, 0xff, 0x00, 0x00, 0xac, 0x00,
+    0x00, 0x00, 0xac, 0x01, 0x00, 0x00, 0xac, 0x02,
+    0x00, 0x00, 0xac, 0x03, 0x00, 0x00, 0xac, 0x04,
+    0x00, 0x00, 0xac, 0x05, 0x00, 0x00, 0xac, 0x06,
+    0x00, 0x00, 0xac, 0x07, 0x00, 0x00, 0xac, 0x08,
+    0x00, 0x00, 0xac, 0x09, 0x00, 0x00, 0xac, 0x0a,
+    0x00, 0x00, 0xac, 0x0b, 0x00, 0x00, 0xac, 0x0c,
+    0x00, 0x00, 0xac, 0x0d, 0x00, 0x00, 0xac, 0x0e,
+    0x00, 0x00, 0xac, 0x0f, 0x00, 0x00, 0xac, 0x10,
+    0x00, 0x00, 0xac, 0x11, 0x00, 0x00, 0xac, 0x12,
+    0x00, 0x00, 0xac, 0x13, 0x00, 0x00, 0xac, 0x14,
+    0x00, 0x00, 0xac, 0x15, 0x00, 0x00, 0xac, 0x16,
+    0x00, 0x00, 0xac, 0x17, 0x00, 0x00, 0xac, 0x18,
+    0x00, 0x00, 0xac, 0x19, 0x00, 0x00, 0xac, 0x1a,
+    0x00, 0x00, 0xac, 0x1b, 0x00, 0x00, 0x00, 0x0a,
+    0x00, 0x00, 0xac, 0x1c, 0x00, 0x00, 0xac, 0x1d,
+    0x00, 0x00, 0xac, 0x1e, 0x00, 0x00, 0xac, 0x1f,
+    0x00, 0x00, 0xac, 0x20, 0x00, 0x00, 0xac, 0x21,
+    0x00, 0x00, 0xac, 0x22, 0x00, 0x00, 0xac, 0x23,
+    0x00, 0x00, 0xac, 0x24, 0x00, 0x00, 0xac, 0x25,
+    0x00, 0x00, 0xac, 0x26, 0x00, 0x00, 0xac, 0x27,
+    0x00, 0x00, 0xac, 0x28, 0x00, 0x00, 0xac, 0x29,
+    0x00, 0x00, 0xac, 0x2a, 0x00, 0x00, 0xac, 0x2b,
+    0x00, 0x00, 0xac, 0x2c, 0x00, 0x00, 0xac, 0x2d,
+    0x00, 0x00, 0xac, 0x2e, 0x00, 0x00, 0xac, 0x2f,
+    0x00, 0x00, 0xac, 0x30, 0x00, 0x00, 0xac, 0x31,
+    0x00, 0x00, 0xac, 0x32, 0x00, 0x00, 0xac, 0x33,
+    0x00, 0x00, 0xac, 0x34, 0x00, 0x00, 0xac, 0x35,
+    0x00, 0x00, 0xac, 0x36, 0x00, 0x00, 0xac, 0x37,
+    0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0xac, 0x38,
+    0x00, 0x00, 0xac, 0x39, 0x00, 0x00, 0xac, 0x3a,
+    0x00, 0x00, 0xac, 0x3b, 0x00, 0x00, 0xac, 0x3c,
+    0x00, 0x00, 0xac, 0x3d, 0x00, 0x00, 0xac, 0x3e,
+    0x00, 0x00, 0xac, 0x3f, 0x00, 0x00, 0xac, 0x40,
+    0x00, 0x00, 0xac, 0x41, 0x00, 0x00, 0xac, 0x42,
+    0x00, 0x00, 0xac, 0x43, 0x00, 0x00, 0xac, 0x44,
+    0x00, 0x00, 0xac, 0x45, 0x00, 0x00, 0xac, 0x46,
+    0x00, 0x00, 0xac, 0x47, 0x00, 0x00, 0xac, 0x48,
+    0x00, 0x00, 0xac, 0x49, 0x00, 0x00, 0xac, 0x4a,
+    0x00, 0x00, 0xac, 0x4b, 0x00, 0x00, 0xac, 0x4c,
+    0x00, 0x00, 0xac, 0x4d, 0x00, 0x00, 0xac, 0x4e,
+    0x00, 0x00, 0xac, 0x4f, 0x00, 0x00, 0xac, 0x50,
+    0x00, 0x00, 0xac, 0x51, 0x00, 0x00, 0xac, 0x52,
+    0x00, 0x00, 0xac, 0x53];
+
+const List<int> testKoreanCharSubsetUtf32le = const<int>[
+    0x00, 0xac, 0x00, 0x00, 0x01, 0xac, 0x00, 0x00,
+    0x02, 0xac, 0x00, 0x00, 0x03, 0xac, 0x00, 0x00,
+    0x04, 0xac, 0x00, 0x00, 0x05, 0xac, 0x00, 0x00,
+    0x06, 0xac, 0x00, 0x00, 0x07, 0xac, 0x00, 0x00,
+    0x08, 0xac, 0x00, 0x00, 0x09, 0xac, 0x00, 0x00,
+    0x0a, 0xac, 0x00, 0x00, 0x0b, 0xac, 0x00, 0x00,
+    0x0c, 0xac, 0x00, 0x00, 0x0d, 0xac, 0x00, 0x00,
+    0x0e, 0xac, 0x00, 0x00, 0x0f, 0xac, 0x00, 0x00,
+    0x10, 0xac, 0x00, 0x00, 0x11, 0xac, 0x00, 0x00,
+    0x12, 0xac, 0x00, 0x00, 0x13, 0xac, 0x00, 0x00,
+    0x14, 0xac, 0x00, 0x00, 0x15, 0xac, 0x00, 0x00,
+    0x16, 0xac, 0x00, 0x00, 0x17, 0xac, 0x00, 0x00,
+    0x18, 0xac, 0x00, 0x00, 0x19, 0xac, 0x00, 0x00,
+    0x1a, 0xac, 0x00, 0x00, 0x1b, 0xac, 0x00, 0x00,
+    0x0a, 0x00, 0x00, 0x00, 0x1c, 0xac, 0x00, 0x00,
+    0x1d, 0xac, 0x00, 0x00, 0x1e, 0xac, 0x00, 0x00,
+    0x1f, 0xac, 0x00, 0x00, 0x20, 0xac, 0x00, 0x00,
+    0x21, 0xac, 0x00, 0x00, 0x22, 0xac, 0x00, 0x00,
+    0x23, 0xac, 0x00, 0x00, 0x24, 0xac, 0x00, 0x00,
+    0x25, 0xac, 0x00, 0x00, 0x26, 0xac, 0x00, 0x00,
+    0x27, 0xac, 0x00, 0x00, 0x28, 0xac, 0x00, 0x00,
+    0x29, 0xac, 0x00, 0x00, 0x2a, 0xac, 0x00, 0x00,
+    0x2b, 0xac, 0x00, 0x00, 0x2c, 0xac, 0x00, 0x00,
+    0x2d, 0xac, 0x00, 0x00, 0x2e, 0xac, 0x00, 0x00,
+    0x2f, 0xac, 0x00, 0x00, 0x30, 0xac, 0x00, 0x00,
+    0x31, 0xac, 0x00, 0x00, 0x32, 0xac, 0x00, 0x00,
+    0x33, 0xac, 0x00, 0x00, 0x34, 0xac, 0x00, 0x00,
+    0x35, 0xac, 0x00, 0x00, 0x36, 0xac, 0x00, 0x00,
+    0x37, 0xac, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00,
+    0x38, 0xac, 0x00, 0x00, 0x39, 0xac, 0x00, 0x00,
+    0x3a, 0xac, 0x00, 0x00, 0x3b, 0xac, 0x00, 0x00,
+    0x3c, 0xac, 0x00, 0x00, 0x3d, 0xac, 0x00, 0x00,
+    0x3e, 0xac, 0x00, 0x00, 0x3f, 0xac, 0x00, 0x00,
+    0x40, 0xac, 0x00, 0x00, 0x41, 0xac, 0x00, 0x00,
+    0x42, 0xac, 0x00, 0x00, 0x43, 0xac, 0x00, 0x00,
+    0x44, 0xac, 0x00, 0x00, 0x45, 0xac, 0x00, 0x00,
+    0x46, 0xac, 0x00, 0x00, 0x47, 0xac, 0x00, 0x00,
+    0x48, 0xac, 0x00, 0x00, 0x49, 0xac, 0x00, 0x00,
+    0x4a, 0xac, 0x00, 0x00, 0x4b, 0xac, 0x00, 0x00,
+    0x4c, 0xac, 0x00, 0x00, 0x4d, 0xac, 0x00, 0x00,
+    0x4e, 0xac, 0x00, 0x00, 0x4f, 0xac, 0x00, 0x00,
+    0x50, 0xac, 0x00, 0x00, 0x51, 0xac, 0x00, 0x00,
+    0x52, 0xac, 0x00, 0x00, 0x53, 0xac, 0x00, 0x00];
+
+void main() {
+  testUtf32BytesToString();
+  testEncodeToUtf32();
+  testIterableMethods();
+}
+
+void testEncodeToUtf32() {
+  Expect.listEquals([], encodeUtf32le(""), "no input"); // TODO(dcarlson) skip bom on empty?
+  Expect.listEquals(testKoreanCharSubsetUtf32beBom,
+      encodeUtf32(testKoreanCharSubset),
+      "encode UTF-32(BE by default) Korean");
+  Expect.listEquals(testKoreanCharSubsetUtf32le,
+      encodeUtf32le(testKoreanCharSubset),
+      "encode UTF-32(LE by default) Korean");
+}
+
+void testUtf32BytesToString() {
+  Expect.stringEquals("", decodeUtf32([]), "no input");
+  Expect.stringEquals("\ufffd", decodeUtf32([0]), "single byte");
+  Expect.stringEquals("\ufffd", decodeUtf32([0, 0, 0x4e]),
+      "short a byte");
+  Expect.stringEquals("\u4e8c\ufffd", decodeUtf32([0, 0, 0x4e, 0x8c, 0]),
+      "extra byte");
+
+  Expect.stringEquals(testHanTwice, decodeUtf32([0, 0, 0x4e, 0x8c]),
+      "twice variation 1");
+  Expect.stringEquals(testHanTwice,
+      decodeUtf32([0, 0, 0xfe, 0xff, 0, 0, 0x4e, 0x8c]),
+      "twice variation 2");
+  Expect.stringEquals(testHanTwice,
+      decodeUtf32([0xff, 0xfe, 0, 0, 0x8c, 0x4e, 0, 0]),
+      "twice variation 3");
+
+  Expect.stringEquals(testHanTwice, decodeUtf32be([0, 0, 0x4e, 0x8c]),
+      "twice variation 4");
+  Expect.stringEquals(testHanTwice,
+      decodeUtf32be([0, 0, 0xfe, 0xff, 0, 0, 0x4e, 0x8c]),
+      "twice variation 5");
+
+  Expect.stringEquals(testHanTwice, decodeUtf32le([0x8c, 0x4e, 0, 0]),
+      "twice variation 6");
+  Expect.stringEquals(testHanTwice,
+      decodeUtf32le([0xff, 0xfe, 0, 0, 0x8c, 0x4e, 0, 0]),
+      "twice variation 7");
+
+  Expect.stringEquals(testKoreanCharSubset,
+      decodeUtf32(testKoreanCharSubsetUtf32beBom),
+      "UTF-32BE Korean");
+}
+
+void testIterableMethods() {
+  // empty input
+  Expect.isFalse(decodeUtf32AsIterable([]).iterator.moveNext());
+
+  IterableUtf32Decoder koreanDecoder =
+    decodeUtf32AsIterable(testKoreanCharSubsetUtf32beBom);
+  // get the first character
+  Expect.equals(testKoreanCharSubset.codeUnits[0], koreanDecoder.first);
+  // get the whole translation using the Iterable interface
+  Expect.stringEquals(testKoreanCharSubset,
+      new String.fromCharCodes(new List<int>.from(koreanDecoder)));
+
+  // specify types
+  Expect.equals(44032, (new List<int>
+      .from(decodeUtf32beAsIterable(testKoreanCharSubsetUtf32beBom)))[0]);
+  Expect.equals(44032, (new List<int>
+      .from(decodeUtf32leAsIterable(testKoreanCharSubsetUtf32le)))[0]);
+  bool stripBom = false;
+  Expect.equals(UNICODE_BOM, (new List<int>
+      .from(decodeUtf32beAsIterable(testKoreanCharSubsetUtf32beBom,
+          0, null, stripBom)))[0]);

[floitsch, 2013/11/18 17:08:17]

needed to change from named to positional arguments.

+}