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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Copyright (C) 2018 Intel Corporation.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QTest>
void loadInvalidUtf8Rows()
{
// Wrong continuations
QTest::newRow("bad-continuation-1char") << QByteArray("\x80");
QTest::newRow("bad-continuation-2chars-1") << QByteArray("\xC2\xC0");
QTest::newRow("bad-continuation-2chars-2") << QByteArray("\xC3\xDF");
QTest::newRow("bad-continuation-2chars-3") << QByteArray("\xC7\xF0");
QTest::newRow("bad-continuation-3chars-1") << QByteArray("\xE0\xA0\xC0");
QTest::newRow("bad-continuation-3chars-2") << QByteArray("\xE0\xC0\xA0");
QTest::newRow("bad-continuation-4chars-1") << QByteArray("\xF0\x90\x80\xC0");
QTest::newRow("bad-continuation-4chars-2") << QByteArray("\xF0\x90\xC0\x80");
QTest::newRow("bad-continuation-4chars-3") << QByteArray("\xF0\xC0\x80\x80");
// Too short
QTest::newRow("too-short-2chars") << QByteArray("\xC2");
QTest::newRow("too-short-3chars-1") << QByteArray("\xE0");
QTest::newRow("too-short-3chars-2") << QByteArray("\xE0\xA0");
QTest::newRow("too-short-4chars-1") << QByteArray("\xF0");
QTest::newRow("too-short-4chars-2") << QByteArray("\xF0\x90");
QTest::newRow("too-short-4chars-3") << QByteArray("\xF0\x90\x80");
// Surrogate pairs must now be present either
// U+D800: 1101 10 0000 00 0000
// encoding: xxxz:1101 xz10:0000 xz00:0000
QTest::newRow("hi-surrogate") << QByteArray("\xED\xA0\x80");
// U+DC00: 1101 11 0000 00 0000
// encoding: xxxz:1101 xz11:0000 xz00:0000
QTest::newRow("lo-surrogate") << QByteArray("\xED\xB0\x80");
// not even in pair:
QTest::newRow("surrogate-pair") << QByteArray("\xED\xA0\x80\xED\xB0\x80");
// Characters outside the Unicode range:
// 0x110000: 00 0100 01 0000 00 0000 00 0000
// encoding: xxxx:z100 xz01:0000 xz00:0000 xz00:0000
QTest::newRow("non-unicode-1") << QByteArray("\xF4\x90\x80\x80");
// 0x200000: 00 1000 00 0000 00 0000 00 0000
// encoding: xxxx:xz00 xz00:1000 xz00:0000 xz00:0000 xz00:0000
QTest::newRow("non-unicode-2") << QByteArray("\xF8\x88\x80\x80\x80");
// 0x04000000: 0100 00 0000 00 0000 00 0000 00 0000
// encoding: xxxx:xxz0 xz00:0100 xz00:0000 xz00:0000 xz00:0001 xz00:0001
QTest::newRow("non-unicode-3") << QByteArray("\xFC\x84\x80\x80\x80\x80");
// 0x7fffffff: 1 11 1111 11 1111 11 1111 11 1111 11 1111
// encoding: xxxx:xxz0 xz00:0100 xz00:0000 xz00:0000 xz00:0001 xz00:0001
QTest::newRow("non-unicode-4") << QByteArray("\xFD\xBF\xBF\xBF\xBF\xBF");
// As seen above, 0xFE and 0xFF never appear:
QTest::newRow("fe") << QByteArray("\xFE");
QTest::newRow("fe-bis") << QByteArray("\xFE\xBF\xBF\xBF\xBF\xBF\xBF");
QTest::newRow("ff") << QByteArray("\xFF");
QTest::newRow("ff-bis") << QByteArray("\xFF\xBF\xBF\xBF\xBF\xBF\xBF\xBF");
// some combinations in UTF-8 are invalid even though they have the proper bits set
// these are known as overlong sequences
// "A": U+0041: 01 00 0001
// overlong 2: xxz0:0001 xz00:0001
QTest::newRow("overlong-1-2") << QByteArray("\xC1\x81");
// overlong 3: xxxz:0000 xz00:0001 xz00:0001
QTest::newRow("overlong-1-3") << QByteArray("\xE0\x81\x81");
// overlong 4: xxxx:z000 xz00:0000 xz00:0001 xz00:0001
QTest::newRow("overlong-1-4") << QByteArray("\xF0\x80\x81\x81");
// overlong 5: xxxx:xz00 xz00:0000 xz00:0000 xz00:0001 xz00:0001
QTest::newRow("overlong-1-5") << QByteArray("\xF8\x80\x80\x81\x81");
// overlong 6: xxxx:xxz0 xz00:0000 xz00:0000 xz00:0000 xz00:0001 xz00:0001
QTest::newRow("overlong-1-6") << QByteArray("\xFC\x80\x80\x80\x81\x81");
// U+0080: 10 00 0000
// proper encoding: xxz0:0010 xz00:0000
// overlong 3: xxxz:0000 xz00:0010 xz00:0000
QTest::newRow("overlong-2-3") << QByteArray("\xE0\x82\x80");
// overlong 4: xxxx:z000 xz00:0000 xz00:0010 xz00:0000
QTest::newRow("overlong-2-4") << QByteArray("\xF0\x80\x82\x80");
// overlong 5: xxxx:xz00 xz00:0000 xz00:0000 xz00:0010 xz00:0000
QTest::newRow("overlong-2-5") << QByteArray("\xF8\x80\x80\x82\x80");
// overlong 6: xxxx:xxz0 xz00:0000 xz00:0000 xz00:0000 xz00:0010 xz00:0000
QTest::newRow("overlong-2-6") << QByteArray("\xFC\x80\x80\x80\x82\x80");
// U+0800: 10 0000 00 0000
// proper encoding: xxxz:0000 xz10:0000 xz00:0000
// overlong 4: xxxx:z000 xz00:0000 xz10:0000 xz00:0000
QTest::newRow("overlong-3-4") << QByteArray("\xF0\x80\xA0\x80");
// overlong 5: xxxx:xz00 xz00:0000 xz00:0000 xz10:0000 xz00:0000
QTest::newRow("overlong-3-5") << QByteArray("\xF8\x80\x80\xA0\x80");
// overlong 6: xxxx:xxz0 xz00:0000 xz00:0000 xz00:0000 xz10:0000 xz00:0000
QTest::newRow("overlong-3-6") << QByteArray("\xFC\x80\x80\x80\xA0\x80");
// U+010000: 00 0100 00 0000 00 0000
// proper encoding: xxxx:z000 xz00:0100 xz00:0000 xz00:0000
// overlong 5: xxxx:xz00 xz00:0000 xz00:0100 xz00:0000 xz00:0000
QTest::newRow("overlong-4-5") << QByteArray("\xF8\x80\x84\x80\x80");
// overlong 6: xxxx:xxz0 xz00:0000 xz00:0000 xz00:0100 xz00:0000 xz00:0000
QTest::newRow("overlong-4-6") << QByteArray("\xFC\x80\x80\x84\x80\x80");
}
void loadNonCharactersRows()
{
// Unicode has a couple of "non-characters" that one can use internally
// These characters are allowed for text-interchange (see http://www.unicode.org/versions/corrigendum9.html)
//
// Those are the last two entries each Unicode Plane (U+FFFE, U+FFFF,
// U+1FFFE, U+1FFFF, etc.) as well as the entries between U+FDD0 and
// U+FDEF (inclusive)
// U+FDD0 through U+FDEF
for (int i = 0; i < 16; ++i) {
char utf8[] = { char(0357), char(0267), char(0220 + i), 0 };
QString utf16 = QChar(0xfdd0 + i);
QTest::newRow(qPrintable(QString::number(0xfdd0 + i, 16))) << QByteArray(utf8) << utf16;
}
// the last two in Planes 1 through 16
for (uint plane = 1; plane <= 16; ++plane) {
for (uint lower = 0xfffe; lower < 0x10000; ++lower) {
uint ucs4 = (plane << 16) | lower;
char utf8[] = { char(0xf0 | uchar(ucs4 >> 18)),
char(0x80 | (uchar(ucs4 >> 12) & 0x3f)),
char(0x80 | (uchar(ucs4 >> 6) & 0x3f)),
char(0x80 | (uchar(ucs4) & 0x3f)),
0 };
const auto utf16 = QChar::fromUcs4(ucs4);
QTest::newRow(qPrintable(QString::number(ucs4, 16))) << QByteArray(utf8) << QStringView{utf16}.toString();
}
}
QTest::newRow("fffe") << QByteArray("\xEF\xBF\xBE") << QString(QChar(0xfffe));
QTest::newRow("ffff") << QByteArray("\xEF\xBF\xBF") << QString(QChar(0xffff));
}
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