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Unified Diff: test/codegen/lib/convert/chunked_conversion_utf88_test.dart

Issue 1965563003: Update dart:convert and dart:core Uri. (Closed) Base URL: https://github.com/dart-lang/dev_compiler.git@master
Patch Set: Created 4 years, 7 months ago
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Index: test/codegen/lib/convert/chunked_conversion_utf88_test.dart
diff --git a/test/codegen/lib/convert/chunked_conversion_utf88_test.dart b/test/codegen/lib/convert/chunked_conversion_utf88_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..c9a968cbcf52790a4f5cc2956b784e346d5fdc91
--- /dev/null
+++ b/test/codegen/lib/convert/chunked_conversion_utf88_test.dart
@@ -0,0 +1,249 @@
+// Copyright (c) 2013, 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.
+
+library utf8_test;
+import "package:expect/expect.dart";
+import 'dart:convert';
+
+List<int> encode(String str) {
+ List<int> bytes;
+ ChunkedConversionSink byteSink =
+ new ByteConversionSink.withCallback((result) => bytes = result);
+ var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
+ stringConversionSink.add(str);
+ stringConversionSink.close();
+ return bytes;
+}
+
+List<int> encode2(String str) {
+ List<int> bytes;
+ ChunkedConversionSink byteSink =
+ new ByteConversionSink.withCallback((result) => bytes = result);
+ var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
+ ClosableStringSink stringSink = stringConversionSink.asStringSink();
+ stringSink.write(str);
+ stringSink.close();
+ return bytes;
+}
+
+List<int> encode3(String str) {
+ List<int> bytes;
+ ChunkedConversionSink byteSink =
+ new ByteConversionSink.withCallback((result) => bytes = result);
+ var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
+ ClosableStringSink stringSink = stringConversionSink.asStringSink();
+ str.codeUnits.forEach(stringSink.writeCharCode);
+ stringSink.close();
+ return bytes;
+}
+
+List<int> encode4(String str) {
+ List<int> bytes;
+ ChunkedConversionSink byteSink =
+ new ByteConversionSink.withCallback((result) => bytes = result);
+ var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
+ ClosableStringSink stringSink = stringConversionSink.asStringSink();
+ str.runes.forEach(stringSink.writeCharCode);
+ stringSink.close();
+ return bytes;
+}
+
+List<int> encode5(String str) {
+ List<int> bytes;
+ ChunkedConversionSink byteSink =
+ new ByteConversionSink.withCallback((result) => bytes = result);
+ var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
+ ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
+ List<int> tmpBytes = UTF8.encode(str);
+ inputByteSink.add(tmpBytes);
+ inputByteSink.close();
+ return bytes;
+}
+
+List<int> encode6(String str) {
+ List<int> bytes;
+ ChunkedConversionSink byteSink =
+ new ByteConversionSink.withCallback((result) => bytes = result);
+ var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
+ ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
+ List<int> tmpBytes = UTF8.encode(str);
+ tmpBytes.forEach((b) => inputByteSink.addSlice([0, b, 1], 1, 2, false));
+ inputByteSink.close();
+ return bytes;
+}
+
+List<int> encode7(String str) {
+ List<int> bytes;
+ ChunkedConversionSink byteSink =
+ new ByteConversionSink.withCallback((result) => bytes = result);
+ var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
+ stringConversionSink.addSlice("1" + str + "2", 1, str.length + 1, false);
+ stringConversionSink.close();
+ return bytes;
+}
+
+
+int _nextPowerOf2(v) {
+ assert(v > 0);
+ v--;
+ v |= v >> 1;
+ v |= v >> 2;
+ v |= v >> 4;
+ v |= v >> 8;
+ v |= v >> 16;
+ v++;
+ return v;
+}
+
+runTest(test) {
+ List<int> bytes = test[0];
+ String string = test[1];
+ Expect.listEquals(bytes, encode(string));
+ Expect.listEquals(bytes, encode2(string));
+ Expect.listEquals(bytes, encode3(string));
+ Expect.listEquals(bytes, encode4(string));
+ Expect.listEquals(bytes, encode5(string));
+ Expect.listEquals(bytes, encode6(string));
+ Expect.listEquals(bytes, encode7(string));
+}
+
+main() {
+ const LEADING_SURROGATE = 0xd801;
+ const TRAILING_SURROGATE = 0xdc12;
+ const UTF8_ENCODING = const [0xf0, 0x90, 0x90, 0x92];
+ const UTF8_LEADING = const [0xed, 0xa0, 0x81];
+ const UTF8_TRAILING = const [0xed, 0xb0, 0x92];
+ const CHAR_A = 0x61;
+
+ // Test surrogates at all kinds of locations.
+ var tests = [];
+ List codeUnits = <int>[];
+ for (int i = 0; i < 2049; i++) {
+ // Invariant: codeUnits[0..i - 1] is filled with CHAR_A (character 'a').
+ codeUnits.length = i + 1;
+ codeUnits[i] = CHAR_A;
+
+ // Only test for problem zones, close to powers of two.
+ if (i > 20 && _nextPowerOf2(i - 2) - i > 10) continue;
+
+ codeUnits[i] = LEADING_SURROGATE;
+ var str = new String.fromCharCodes(codeUnits);
+ var bytes = new List.filled(i + 3, CHAR_A);
+ bytes[i] = UTF8_LEADING[0];
+ bytes[i + 1] = UTF8_LEADING[1];
+ bytes[i + 2] = UTF8_LEADING[2];
+ runTest([bytes, str]);
+
+ codeUnits[i] = TRAILING_SURROGATE;
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 3, CHAR_A);
+ bytes[i] = UTF8_TRAILING[0];
+ bytes[i + 1] = UTF8_TRAILING[1];
+ bytes[i + 2] = UTF8_TRAILING[2];
+ runTest([bytes, str]);
+
+ codeUnits.length = i + 2;
+ codeUnits[i] = LEADING_SURROGATE;
+ codeUnits[i + 1] = TRAILING_SURROGATE;
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 4, CHAR_A);
+ bytes[i] = UTF8_ENCODING[0];
+ bytes[i + 1] = UTF8_ENCODING[1];
+ bytes[i + 2] = UTF8_ENCODING[2];
+ bytes[i + 3] = UTF8_ENCODING[3];
+ runTest([bytes, str]);
+
+ codeUnits[i] = TRAILING_SURROGATE;
+ codeUnits[i + 1] = TRAILING_SURROGATE;
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 6, CHAR_A);
+ bytes[i] = UTF8_TRAILING[0];
+ bytes[i + 1] = UTF8_TRAILING[1];
+ bytes[i + 2] = UTF8_TRAILING[2];
+ bytes[i + 3] = UTF8_TRAILING[0];
+ bytes[i + 4] = UTF8_TRAILING[1];
+ bytes[i + 5] = UTF8_TRAILING[2];
+ runTest([bytes, str]);
+
+ codeUnits[i] = LEADING_SURROGATE;
+ codeUnits[i + 1] = LEADING_SURROGATE;
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 6, CHAR_A);
+ bytes[i] = UTF8_LEADING[0];
+ bytes[i + 1] = UTF8_LEADING[1];
+ bytes[i + 2] = UTF8_LEADING[2];
+ bytes[i + 3] = UTF8_LEADING[0];
+ bytes[i + 4] = UTF8_LEADING[1];
+ bytes[i + 5] = UTF8_LEADING[2];
+ runTest([bytes, str]);
+
+ codeUnits[i] = TRAILING_SURROGATE;
+ codeUnits[i + 1] = LEADING_SURROGATE;
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 6, CHAR_A);
+ bytes[i] = UTF8_TRAILING[0];
+ bytes[i + 1] = UTF8_TRAILING[1];
+ bytes[i + 2] = UTF8_TRAILING[2];
+ bytes[i + 3] = UTF8_LEADING[0];
+ bytes[i + 4] = UTF8_LEADING[1];
+ bytes[i + 5] = UTF8_LEADING[2];
+ runTest([bytes, str]);
+
+ codeUnits.length = i + 3;
+ codeUnits[i] = LEADING_SURROGATE;
+ codeUnits[i + 1] = TRAILING_SURROGATE;
+ codeUnits[i + 2] = CHAR_A; // Add trailing 'a'.
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 5, CHAR_A);
+ bytes[i] = UTF8_ENCODING[0];
+ bytes[i + 1] = UTF8_ENCODING[1];
+ bytes[i + 2] = UTF8_ENCODING[2];
+ bytes[i + 3] = UTF8_ENCODING[3];
+ // No need to assign the 'a' character. The whole list is already filled
+ // with it.
+ runTest([bytes, str]);
+
+ codeUnits[i] = TRAILING_SURROGATE;
+ codeUnits[i + 1] = TRAILING_SURROGATE;
+ codeUnits[i + 2] = CHAR_A; // Add trailing 'a'.
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 7, CHAR_A);
+ bytes[i] = UTF8_TRAILING[0];
+ bytes[i + 1] = UTF8_TRAILING[1];
+ bytes[i + 2] = UTF8_TRAILING[2];
+ bytes[i + 3] = UTF8_TRAILING[0];
+ bytes[i + 4] = UTF8_TRAILING[1];
+ bytes[i + 5] = UTF8_TRAILING[2];
+ runTest([bytes, str]);
+
+ codeUnits[i] = LEADING_SURROGATE;
+ codeUnits[i + 1] = LEADING_SURROGATE;
+ codeUnits[i + 2] = CHAR_A; // Add trailing 'a'.
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 7, CHAR_A);
+ bytes[i] = UTF8_LEADING[0];
+ bytes[i + 1] = UTF8_LEADING[1];
+ bytes[i + 2] = UTF8_LEADING[2];
+ bytes[i + 3] = UTF8_LEADING[0];
+ bytes[i + 4] = UTF8_LEADING[1];
+ bytes[i + 5] = UTF8_LEADING[2];
+ runTest([bytes, str]);
+
+ codeUnits[i] = TRAILING_SURROGATE;
+ codeUnits[i + 1] = LEADING_SURROGATE;
+ codeUnits[i + 2] = CHAR_A; // Add trailing 'a'.
+ str = new String.fromCharCodes(codeUnits);
+ bytes = new List.filled(i + 7, CHAR_A);
+ bytes[i] = UTF8_TRAILING[0];
+ bytes[i + 1] = UTF8_TRAILING[1];
+ bytes[i + 2] = UTF8_TRAILING[2];
+ bytes[i + 3] = UTF8_LEADING[0];
+ bytes[i + 4] = UTF8_LEADING[1];
+ bytes[i + 5] = UTF8_LEADING[2];
+ runTest([bytes, str]);
+
+ // Make sure the invariant is correct.
+ codeUnits[i] = CHAR_A;
+ }
+}

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