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Diffstat (limited to 'tests/auto/corelib/text/qbytearray_large/tst_qbytearray_large.cpp')
| -rw-r--r-- | tests/auto/corelib/text/qbytearray_large/tst_qbytearray_large.cpp | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/tests/auto/corelib/text/qbytearray_large/tst_qbytearray_large.cpp b/tests/auto/corelib/text/qbytearray_large/tst_qbytearray_large.cpp new file mode 100644 index 0000000000..9cf7368907 --- /dev/null +++ b/tests/auto/corelib/text/qbytearray_large/tst_qbytearray_large.cpp @@ -0,0 +1,224 @@ +// 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" |