diff options
Diffstat (limited to 'tests/auto')
-rw-r--r-- | tests/auto/corelib/serialization/qcborvalue/tst_qcborvalue.cpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/tests/auto/corelib/serialization/qcborvalue/tst_qcborvalue.cpp b/tests/auto/corelib/serialization/qcborvalue/tst_qcborvalue.cpp index d5a9012f9f..49bb9cc144 100644 --- a/tests/auto/corelib/serialization/qcborvalue/tst_qcborvalue.cpp +++ b/tests/auto/corelib/serialization/qcborvalue/tst_qcborvalue.cpp @@ -102,6 +102,8 @@ private slots: void fromCborStreamReaderIODevice(); void validation_data(); void validation(); + void recursionLimit_data(); + void recursionLimit(); void toDiagnosticNotation_data(); void toDiagnosticNotation(); @@ -1720,6 +1722,58 @@ void tst_QCborValue::validation() } } +void tst_QCborValue::recursionLimit_data() +{ + constexpr int RecursionAttempts = 4096; + QTest::addColumn<QByteArray>("data"); + QByteArray arrays(RecursionAttempts, char(0x81)); + QByteArray _arrays(RecursionAttempts, char(0x9f)); + QByteArray maps(RecursionAttempts, char(0xa1)); + QByteArray _maps(RecursionAttempts, char(0xbf)); + QByteArray tags(RecursionAttempts, char(0xc0)); + + QTest::newRow("array-nesting-too-deep") << arrays; + QTest::newRow("_array-nesting-too-deep") << _arrays; + QTest::newRow("map-nesting-too-deep") << maps; + QTest::newRow("_map-nesting-too-deep") << _maps; + QTest::newRow("tag-nesting-too-deep") << tags; + + QByteArray mixed(5 * RecursionAttempts, Qt::Uninitialized); + char *ptr = mixed.data(); + for (int i = 0; i < RecursionAttempts; ++i) { + quint8 type = qBound(quint8(QCborStreamReader::Array), quint8(i & 0x80), quint8(QCborStreamReader::Tag)); + quint8 additional_info = i & 0x1f; + if (additional_info == 0x1f) + (void)additional_info; // leave it + else if (additional_info > 0x1a) + additional_info = 0x1a; + else if (additional_info < 1) + additional_info = 1; + + *ptr++ = type | additional_info; + if (additional_info == 0x18) { + *ptr++ = uchar(i); + } else if (additional_info == 0x19) { + qToBigEndian(ushort(i), ptr); + ptr += 2; + } else if (additional_info == 0x1a) { + qToBigEndian(uint(i), ptr); + ptr += 4; + } + } + + QTest::newRow("mixed-nesting-too-deep") << mixed; +} + +void tst_QCborValue::recursionLimit() +{ + QFETCH(QByteArray, data); + + QCborParserError error; + QCborValue decoded = QCborValue::fromCbor(data, &error); + QCOMPARE(error.error, QCborError::NestingTooDeep); +} + void tst_QCborValue::toDiagnosticNotation_data() { QTest::addColumn<QCborValue>("v"); |