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// Copyright (C) 2018 The Qt Company Ltd.
// Copyright (C) 2018 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtTest/QtTest>
#include <qtextcodec.h>
#include "utf8data.h"
#include <memory>
QT_BEGIN_NAMESPACE
static const char utf8bom[] = "\xEF\xBB\xBF";
class tst_Utf8 : public QObject
{
Q_OBJECT
public:
// test data:
QTextCodec *codec;
QString (*from8BitPtr)(const char *, qsizetype);
static QByteArray to8Bit(const QString &);
inline QString from8Bit(const QByteArray &ba)
{ return from8BitPtr(ba.constData(), ba.size()); }
public slots:
void initTestCase();
void init();
private slots:
void roundTrip_data();
void roundTrip();
void charByChar_data();
void charByChar();
void invalidUtf8_data();
void invalidUtf8();
void nonCharacters_data();
void nonCharacters();
};
void tst_Utf8::initTestCase()
{
QTest::addColumn<bool>("useLocale");
QTest::newRow("utf8codec") << false;
// is the locale UTF-8?
if (QString(QChar(QChar::ReplacementCharacter)).toLocal8Bit() == "\xEF\xBF\xBD") {
QTest::newRow("localecodec") << true;
qInfo() << "locale is utf8";
}
}
void tst_Utf8::init()
{
QFETCH_GLOBAL(bool, useLocale);
if (useLocale) {
codec = QTextCodec::codecForLocale();
from8BitPtr = &QString::fromLocal8Bit;
} else {
codec = QTextCodec::codecForMib(106);
from8BitPtr = &QString::fromUtf8;
}
}
QByteArray tst_Utf8::to8Bit(const QString &s)
{
QFETCH_GLOBAL(bool, useLocale);
if (useLocale)
return s.toLocal8Bit();
else
return s.toUtf8();
}
void tst_Utf8::roundTrip_data()
{
QTest::addColumn<QByteArray>("utf8");
QTest::addColumn<QString>("utf16");
QTest::newRow("empty") << QByteArray() << QString();
QTest::newRow("nul") << QByteArray("", 1) << QString(QChar(QChar::Null));
static const char ascii[] = "This is a standard US-ASCII message";
QTest::newRow("ascii") << QByteArray(ascii) << QString::fromLatin1(ascii);
static const char ascii2[] = "\1This\2is\3an\4US-ASCII\020 message interspersed with control chars";
QTest::newRow("ascii2") << QByteArray(ascii2) << QString::fromLatin1(ascii2);
static const char utf8_1[] = "\302\240"; // NBSP
QTest::newRow("utf8_1") << QByteArray(utf8_1) << QString(QChar(QChar::Nbsp));
static const char utf8_2[] = "\342\202\254"; // Euro symbol
QTest::newRow("utf8_2") << QByteArray(utf8_2) << QString(QChar(0x20AC));
#if 0
// Can't test this because QString::fromUtf8 consumes it
static const char utf8_3[] = "\357\273\277"; // byte order mark
QTest::newRow("utf8_3") << QByteArray(utf8_3) << QString(QChar(QChar::ByteOrderMark));
#endif
static const char utf8_4[] = "\357\277\275"; // replacement char
QTest::newRow("utf8_4") << QByteArray(utf8_4) << QString(QChar(QChar::ReplacementCharacter));
static const char utf8_5[] = "\360\220\210\203"; // U+010203
static const char32_t utf32_5[] = { 0x010203 };
QTest::newRow("utf8_5") << QByteArray(utf8_5) << QString::fromUcs4(utf32_5, 1);
static const char utf8_6[] = "\364\217\277\275"; // U+10FFFD
static const char32_t utf32_6[] = { 0x10FFFD };
QTest::newRow("utf8_6") << QByteArray(utf8_6) << QString::fromUcs4(utf32_6, 1);
static const char utf8_7[] = "abc\302\240\303\241\303\251\307\275 \342\202\254def";
static const char16_t utf16_7[] = { 'a', 'b', 'c', 0x00A0,
0x00E1, 0x00E9, 0x01FD,
' ', 0x20AC, 'd', 'e', 'f', 0 };
QTest::newRow("utf8_7") << QByteArray(utf8_7) << QString::fromUtf16(utf16_7);
static const char utf8_8[] = "abc\302\240\303\241\303\251\307\275 \364\217\277\275 \342\202\254def";
static const char32_t utf32_8[] = { 'a', 'b', 'c', 0x00A0,
0x00E1, 0x00E9, 0x01FD,
' ', 0x10FFFD, ' ',
0x20AC, 'd', 'e', 'f', 0 };
QTest::newRow("utf8_8") << QByteArray(utf8_8) << QString::fromUcs4(utf32_8);
}
void tst_Utf8::roundTrip()
{
QFETCH(QByteArray, utf8);
QFETCH(QString, utf16);
QCOMPARE(to8Bit(utf16), utf8);
QCOMPARE(from8Bit(utf8), utf16);
QCOMPARE(to8Bit(from8Bit(utf8)), utf8);
QCOMPARE(from8Bit(to8Bit(utf16)), utf16);
// repeat with a longer message
utf8.prepend("12345678901234");
utf16.prepend(QLatin1String("12345678901234"));
QCOMPARE(to8Bit(utf16), utf8);
QCOMPARE(from8Bit(utf8), utf16);
QCOMPARE(to8Bit(from8Bit(utf8)), utf8);
QCOMPARE(from8Bit(to8Bit(utf16)), utf16);
}
void tst_Utf8::charByChar_data()
{
roundTrip_data();
}
void tst_Utf8::charByChar()
{
QFETCH(QByteArray, utf8);
QFETCH(QString, utf16);
{
// from utf16 to utf8 char by char:
const std::unique_ptr<QTextEncoder> encoder(codec->makeEncoder());
QByteArray encoded;
for (int i = 0; i < utf16.size(); ++i) {
encoded += encoder->fromUnicode(utf16.constData() + i, 1);
QVERIFY(!encoder->hasFailure());
}
if (encoded.startsWith(utf8bom))
encoded = encoded.mid(int(strlen(utf8bom)));
QCOMPARE(encoded, utf8);
}
{
// from utf8 to utf16 char by char:
const std::unique_ptr<QTextDecoder> decoder(codec->makeDecoder());
QString decoded;
for (int i = 0; i < utf8.size(); ++i) {
decoded += decoder->toUnicode(utf8.constData() + i, 1);
QVERIFY(!decoder->hasFailure());
}
QCOMPARE(decoded, utf16);
}
}
void tst_Utf8::invalidUtf8_data()
{
QTest::addColumn<QByteArray>("utf8");
loadInvalidUtf8Rows();
}
void tst_Utf8::invalidUtf8()
{
QFETCH(QByteArray, utf8);
QFETCH_GLOBAL(bool, useLocale);
const std::unique_ptr<QTextDecoder> decoder(codec->makeDecoder());
decoder->toUnicode(utf8);
// Only enforce correctness on our UTF-8 decoder
// The system's UTF-8 codec is sometimes buggy
// GNU libc's iconv is known to accept U+FFFF and U+FFFE encoded as UTF-8
// OS X's iconv is known to accept those, plus surrogates and codepoints above U+10FFFF
if (!useLocale)
QVERIFY(decoder->hasFailure() || decoder->needsMoreData());
else if (!decoder->hasFailure() && !decoder->needsMoreData())
qWarning("System codec does not report failure when it should. Should report bug upstream.");
// add a continuation character and test that we don't accidentally use it
// (buffer overrun)
utf8 += char(0x80 | 0x3f);
decoder->toUnicode(utf8.constData(), utf8.size() - 1);
if (!useLocale)
QVERIFY(decoder->hasFailure());
else if (!decoder->hasFailure())
qWarning("System codec does not report failure when it should. Should report bug upstream.");
}
void tst_Utf8::nonCharacters_data()
{
QTest::addColumn<QByteArray>("utf8");
QTest::addColumn<QString>("utf16");
loadNonCharactersRows();
}
void tst_Utf8::nonCharacters()
{
QFETCH(QByteArray, utf8);
QFETCH(QString, utf16);
QFETCH_GLOBAL(bool, useLocale);
const std::unique_ptr<QTextDecoder> decoder(codec->makeDecoder());
decoder->toUnicode(utf8);
// Only enforce correctness on our UTF-8 decoder
if (!useLocale)
QVERIFY(!decoder->hasFailure());
else if (decoder->hasFailure())
qWarning("System codec reports failure when it shouldn't. Should report bug upstream.");
const std::unique_ptr<QTextEncoder> encoder(codec->makeEncoder());
encoder->fromUnicode(utf16);
if (!useLocale)
QVERIFY(!encoder->hasFailure());
else if (encoder->hasFailure())
qWarning("System codec reports failure when it shouldn't. Should report bug upstream.");
}
QT_END_NAMESPACE
QTEST_MAIN(tst_Utf8)
#include "tst_utf8.moc"