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// Copyright (C) 2022 The Qt Company Ltd.
// Copyright (C) 2022 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QTest>
#include <qbytearray.h>
#include <q20iterator.h>
#include <stdexcept>
#include <string_view>
class tst_QByteArrayLarge : public QObject
{
Q_OBJECT
private slots:
void initTestCase();
#ifndef QT_NO_COMPRESS
void qCompress_data();
void qCompress();
void qUncompressCorruptedData_data();
void qUncompressCorruptedData();
void qUncompress4GiBPlus();
void qCompressionZeroTermination();
#endif
void base64_2GiB();
};
void tst_QByteArrayLarge::initTestCase()
{
#if defined(QT_ASAN_ENABLED)
QSKIP("Skipping QByteArray tests under ASAN as they are too slow");
#endif
}
#ifndef QT_NO_COMPRESS
void tst_QByteArrayLarge::qCompress_data()
{
QTest::addColumn<QByteArray>("ba");
const int size1 = 1024*1024;
QByteArray ba1( size1, 0 );
QTest::newRow( "00" ) << QByteArray();
int i;
for ( i=0; i<size1; i++ )
ba1[i] = (char)( i / 1024 );
QTest::newRow( "01" ) << ba1;
for ( i=0; i<size1; i++ )
ba1[i] = (char)( i % 256 );
QTest::newRow( "02" ) << ba1;
ba1.fill( 'A' );
QTest::newRow( "03" ) << ba1;
QFile file( QFINDTESTDATA("rfc3252.txt") );
QVERIFY( file.open(QIODevice::ReadOnly) );
QTest::newRow( "04" ) << file.readAll();
}
void tst_QByteArrayLarge::qCompress()
{
QFETCH( QByteArray, ba );
QByteArray compressed = ::qCompress( ba );
QTEST( ::qUncompress( compressed ), "ba" );
}
void tst_QByteArrayLarge::qUncompressCorruptedData_data()
{
QTest::addColumn<QByteArray>("in");
QTest::newRow("0x00000000") << QByteArray("\x00\x00\x00\x00", 4);
QTest::newRow("0x000000ff") << QByteArray("\x00\x00\x00\xff", 4);
QTest::newRow("0x3f000000") << QByteArray("\x3f\x00\x00\x00", 4);
QTest::newRow("0x3fffffff") << QByteArray("\x3f\xff\xff\xff", 4);
QTest::newRow("0x7fffff00") << QByteArray("\x7f\xff\xff\x00", 4);
QTest::newRow("0x7fffffff") << QByteArray("\x7f\xff\xff\xff", 4);
QTest::newRow("0x80000000") << QByteArray("\x80\x00\x00\x00", 4);
QTest::newRow("0x800000ff") << QByteArray("\x80\x00\x00\xff", 4);
QTest::newRow("0xcf000000") << QByteArray("\xcf\x00\x00\x00", 4);
QTest::newRow("0xcfffffff") << QByteArray("\xcf\xff\xff\xff", 4);
QTest::newRow("0xffffff00") << QByteArray("\xff\xff\xff\x00", 4);
QTest::newRow("0xffffffff") << QByteArray("\xff\xff\xff\xff", 4);
}
// This test is expected to produce some warning messages in the test output.
void tst_QByteArrayLarge::qUncompressCorruptedData()
{
QFETCH(QByteArray, in);
QByteArray res;
res = ::qUncompress(in);
QCOMPARE(res, QByteArray());
res = ::qUncompress(in + "blah");
QCOMPARE(res, QByteArray());
}
void tst_QByteArrayLarge::qUncompress4GiBPlus()
{
// after three rounds, this decompresses to 4GiB + 1 'X' bytes:
constexpr uchar compressed_3x[] = {
0x00, 0x00, 0x1a, 0x76, 0x78, 0x9c, 0x63, 0xb0, 0xdf, 0xb4, 0xad, 0x62,
0xce, 0xdb, 0x3b, 0x0b, 0xf3, 0x26, 0x27, 0x4a, 0xb4, 0x3d, 0x34, 0x5b,
0xed, 0xb4, 0x41, 0xf1, 0xc0, 0x99, 0x2f, 0x02, 0x05, 0x67, 0x26, 0x88,
0x6c, 0x66, 0x71, 0x34, 0x62, 0x9c, 0x75, 0x26, 0xb1, 0xa0, 0xe5, 0xcc,
0xda, 0x94, 0x83, 0xc9, 0x05, 0x73, 0x0e, 0x3c, 0x39, 0xc2, 0xc7, 0xd0,
0xae, 0x38, 0x53, 0x7b, 0x87, 0xdc, 0x01, 0x91, 0x45, 0x59, 0x4f, 0xda,
0xbf, 0xca, 0xcc, 0x52, 0xdb, 0xbb, 0xde, 0xbb, 0xf6, 0xd3, 0x55, 0xff,
0x7d, 0x77, 0x0e, 0x1b, 0xf0, 0xa4, 0xdf, 0xcf, 0xdb, 0x5f, 0x2f, 0xf5,
0xd7, 0x7c, 0xfe, 0xbf, 0x3f, 0xbf, 0x3f, 0x9d, 0x7c, 0xda, 0x2c, 0xc8,
0xc0, 0xc0, 0xb0, 0xe1, 0xf1, 0xb3, 0xfd, 0xfa, 0xdf, 0x8e, 0x7d, 0xef,
0x7f, 0xb9, 0xc1, 0xc2, 0xae, 0x92, 0x19, 0x28, 0xf2, 0x66, 0xd7, 0xe5,
0xbf, 0xed, 0x93, 0xbf, 0x6a, 0x14, 0x7c, 0xff, 0xf6, 0xe1, 0xe8, 0xb6,
0x7e, 0x46, 0xa0, 0x90, 0xd9, 0xbb, 0xcf, 0x9f, 0x17, 0x37, 0x7f, 0xe5,
0x6f, 0xb4, 0x7f, 0xfe, 0x5e, 0xfd, 0xb6, 0x1d, 0x1b, 0x50, 0xe8, 0xc6,
0x8e, 0xe3, 0xab, 0x9f, 0xe6, 0xec, 0x65, 0xfd, 0x23, 0xb1, 0x4e, 0x7e,
0xef, 0xbd, 0x6f, 0xa6, 0x40, 0xa1, 0x03, 0xc7, 0xfe, 0x0a, 0xf1, 0x00,
0xe9, 0x06, 0x91, 0x83, 0x40, 0x92, 0x21, 0x43, 0x10, 0xcc, 0x11, 0x03,
0x73, 0x3a, 0x90, 0x39, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32,
0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32,
0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32,
0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32,
0xa3, 0x32, 0xa3, 0x32, 0xa3, 0x32, 0x34, 0x90, 0x99, 0xb6, 0x7e, 0xf5,
0xd3, 0xe9, 0xbf, 0x35, 0x13, 0xca, 0x8c, 0x75, 0xec, 0xec, 0xa4, 0x2f,
0x7e, 0x2d, 0xf9, 0xf3, 0xf0, 0xee, 0xea, 0xd5, 0xf5, 0xd3, 0x14, 0x57,
0x06, 0x00, 0x00, 0xb9, 0x1e, 0x35, 0xce
};
constexpr qint64 GiB = 1024LL * 1024 * 1024;
if constexpr (sizeof(qsizetype) == sizeof(int)) {
QSKIP("This is a 64-bit-only test.");
} else {
// 1st
auto c = ::qUncompress(std::data(compressed_3x), q20::ssize(compressed_3x));
QVERIFY(!c.isNull()); // check for decompression error
// 2nd
c = ::qUncompress(c);
QVERIFY(!c.isNull());
// 3rd
try {
c = ::qUncompress(c);
if (c.isNull()) // this step (~18MiB -> 4GiB) might have run out of memory
QSKIP("Failed to allocate enough memory.");
} catch (const std::bad_alloc &) {
QSKIP("Failed to allocate enough memory.");
}
QCOMPARE(c.size(), 4 * GiB + 1);
QCOMPARE(std::string_view{c}.find_first_not_of('X'),
std::string_view::npos);
// re-compress once
// (produces 18MiB, we shouldn't use much more than that in allocated capacity)
c = ::qCompress(c);
QVERIFY(!c.isNull());
// and un-compress again, to make sure compression worked (we
// can't compare with compressed_3x, because zlib may change):
c = ::qUncompress(c);
QCOMPARE(c.size(), 4 * GiB + 1);
QCOMPARE(std::string_view{c}.find_first_not_of('X'),
std::string_view::npos);
}
}
void tst_QByteArrayLarge::qCompressionZeroTermination()
{
QByteArray s = "Hello, I'm a string.";
QByteArray ba = ::qUncompress(::qCompress(s));
QCOMPARE(ba.data()[ba.size()], '\0');
QCOMPARE(ba, s);
}
#endif
void tst_QByteArrayLarge::base64_2GiB()
{
#ifdef Q_OS_ANDROID
QSKIP("Android kills the test when using too much memory");
#endif
if constexpr (sizeof(qsizetype) > sizeof(int)) {
try {
constexpr qint64 GiB = 1024 * 1024 * 1024;
static_assert((2 * GiB + 1) % 3 == 0);
const char inputChar = '\0'; // all-NULs encode as
const char outputChar = 'A'; // all-'A's
const qint64 inputSize = 2 * GiB + 1;
const qint64 outputSize = inputSize / 3 * 4;
const auto sv = [](const QByteArray &ba) {
return std::string_view{ba.data(), size_t(ba.size())};
};
QByteArray output;
{
const QByteArray input(inputSize, inputChar);
output = input.toBase64();
QCOMPARE(output.size(), outputSize);
QCOMPARE(sv(output).find_first_not_of(outputChar),
std::string_view::npos);
}
{
auto r = QByteArray::fromBase64Encoding(output);
QCOMPARE_EQ(r.decodingStatus, QByteArray::Base64DecodingStatus::Ok);
QCOMPARE(r.decoded.size(), inputSize);
QCOMPARE(sv(r.decoded).find_first_not_of(inputChar),
std::string_view::npos);
}
} catch (const std::bad_alloc &) {
QSKIP("Could not allocate enough RAM.");
}
} else {
QSKIP("This is a 64-bit only test");
}
}
QTEST_MAIN(tst_QByteArrayLarge)
#include "tst_qbytearray_large.moc"
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