fc74b4e564
which leads to absurd statement (QBuffer::open() == !QBuffer::isOpen()) to be true. also treat Truncate as (Truncate | WriteOnly) to satisfy lazy ones Reviewed-by: Joao Merge-request: 2612 (cherry picked from commit 6b91affb9a355e668bc9d06dee580d95230ac63a) Change-Id: I657d4d0a33f7993313fe2a1a8ba408371991717f Reviewed-on: http://codereview.qt.nokia.com/447 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Peter Hartmann <peter.hartmann@nokia.com>
609 lines
19 KiB
C++
609 lines
19 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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#include <QBuffer>
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#include <QByteArray>
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//TESTED_CLASS=
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//TESTED_FILES=
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class tst_QBuffer : public QObject
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{
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Q_OBJECT
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public:
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tst_QBuffer();
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private slots:
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void open();
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void getSetCheck();
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void readBlock();
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void readBlockPastEnd();
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void writeBlock_data();
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void writeBlock();
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void seek();
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void seekTest_data();
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void seekTest();
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void read_rawdata();
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void isSequential();
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void signalTest_data();
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void signalTest();
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void isClosedAfterClose();
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void readLine_data();
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void readLine();
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void canReadLine_data();
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void canReadLine();
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void atEnd();
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void readLineBoundaries();
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void writeAfterQByteArrayResize();
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void read_null();
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protected slots:
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void readyReadSlot();
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void bytesWrittenSlot(qint64 written);
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private:
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qint64 totalBytesWritten;
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bool gotReadyRead;
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};
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// Testing get/set functions
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void tst_QBuffer::getSetCheck()
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{
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QBuffer obj1;
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// const QByteArray & QBuffer::data()
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// void QBuffer::setData(const QByteArray &)
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QByteArray var1("Bogus data");
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obj1.setData(var1);
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QCOMPARE(var1, obj1.data());
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obj1.setData(QByteArray());
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QCOMPARE(QByteArray(), obj1.data());
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}
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tst_QBuffer::tst_QBuffer()
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{
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}
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void tst_QBuffer::open()
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{
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QByteArray data(10, 'f');
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QBuffer b;
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QTest::ignoreMessage(QtWarningMsg, "QBuffer::open: Buffer access not specified");
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QVERIFY(!b.open(QIODevice::NotOpen));
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QVERIFY(!b.isOpen());
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b.close();
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QTest::ignoreMessage(QtWarningMsg, "QBuffer::open: Buffer access not specified");
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QVERIFY(!b.open(QIODevice::Text));
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QVERIFY(!b.isOpen());
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b.close();
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QTest::ignoreMessage(QtWarningMsg, "QBuffer::open: Buffer access not specified");
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QVERIFY(!b.open(QIODevice::Unbuffered));
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QVERIFY(!b.isOpen());
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b.close();
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QVERIFY(b.open(QIODevice::ReadOnly));
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QVERIFY(b.isReadable());
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b.close();
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QVERIFY(b.open(QIODevice::WriteOnly));
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QVERIFY(b.isWritable());
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b.close();
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b.setData(data);
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QVERIFY(b.open(QIODevice::Append));
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QVERIFY(b.isWritable());
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QCOMPARE(b.size(), qint64(10));
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QCOMPARE(b.pos(), b.size());
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b.close();
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b.setData(data);
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QVERIFY(b.open(QIODevice::Truncate));
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QVERIFY(b.isWritable());
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QCOMPARE(b.size(), qint64(0));
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QCOMPARE(b.pos(), qint64(0));
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b.close();
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QVERIFY(b.open(QIODevice::ReadWrite));
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QVERIFY(b.isReadable());
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QVERIFY(b.isWritable());
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b.close();
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}
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// some status() tests, too
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void tst_QBuffer::readBlock()
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{
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// QTest::ignoreMessage(QtWarningMsg, "QIODevice::read: File not open");
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// QTest::ignoreMessage(QtWarningMsg, "QIODevice::read: Read operation not permitted");
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const int arraySize = 10;
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char a[arraySize];
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QBuffer b;
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QCOMPARE(b.read(a, arraySize), (qint64) -1); // not opened
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QVERIFY(b.atEnd());
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QByteArray ba;
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ba.resize(arraySize);
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b.setBuffer(&ba);
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b.open(QIODevice::WriteOnly);
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QTest::ignoreMessage(QtWarningMsg, "QIODevice::read: WriteOnly device");
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QCOMPARE(b.read(a, arraySize), (qint64) -1); // no read access
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b.close();
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b.open(QIODevice::ReadOnly);
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QCOMPARE(b.read(a, arraySize), (qint64) arraySize);
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QVERIFY(b.atEnd());
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// up to 3.0.x reading beyond the end was an error while ok
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// this has been made consistent with other QIODevice sub classes in 3.1
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QCOMPARE(b.read(a, 1), qint64(0));
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QVERIFY(b.atEnd());
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// read in two chunks
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b.close();
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b.open(QIODevice::ReadOnly);
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QCOMPARE(b.read(a, arraySize/2), (qint64) arraySize/2);
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QCOMPARE(b.read(a + arraySize/2, arraySize - arraySize/2),
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(qint64)(arraySize - arraySize/2));
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QVERIFY(b.atEnd());
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}
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void tst_QBuffer::readBlockPastEnd()
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{
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QByteArray arr(4096 + 3616, 'd');
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QBuffer buf(&arr);
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buf.open(QIODevice::ReadOnly);
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char dummy[4096];
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buf.read(1);
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QCOMPARE(buf.read(dummy, 4096), qint64(4096));
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QCOMPARE(buf.read(dummy, 4096), qint64(3615));
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QVERIFY(buf.atEnd());
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}
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void tst_QBuffer::writeBlock_data()
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{
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QTest::addColumn<QString>("str");
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QTest::newRow( "small_bytearray" ) << QString("Test");
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QTest::newRow( "large_bytearray" ) << QString("The QBuffer class is an I/O device that operates on a QByteArray.\n"
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"QBuffer is used to read and write to a memory buffer. It is normally "
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"used with a QTextStream or a QDataStream. QBuffer has an associated "
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"QByteArray which holds the buffer data. The size() of the buffer is "
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"automatically adjusted as data is written.\n"
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"The constructor QBuffer(QByteArray) creates a QBuffer using an existing "
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"byte array. The byte array can also be set with setBuffer(). Writing to "
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"the QBuffer will modify the original byte array because QByteArray is "
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"explicitly shared.\n"
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"Use open() to open the buffer before use and to set the mode (read-only, "
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"write-only, etc.). close() closes the buffer. The buffer must be closed "
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"before reopening or calling setBuffer().\n"
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"A common way to use QBuffer is through QDataStream or QTextStream, which "
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"have constructors that take a QBuffer parameter. For convenience, there "
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"are also QDataStream and QTextStream constructors that take a QByteArray "
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"parameter. These constructors create and open an internal QBuffer.\n"
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"Note that QTextStream can also operate on a QString (a Unicode string); a "
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"QBuffer cannot.\n"
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"You can also use QBuffer directly through the standard QIODevice functions "
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"readBlock(), writeBlock() readLine(), at(), getch(), putch() and ungetch().\n"
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"See also QFile, QDataStream, QTextStream, QByteArray, Shared Classes, Collection "
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"Classes and Input/Output and Networking.\n\n"
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"The QBuffer class is an I/O device that operates on a QByteArray.\n"
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"QBuffer is used to read and write to a memory buffer. It is normally "
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"used with a QTextStream or a QDataStream. QBuffer has an associated "
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"QByteArray which holds the buffer data. The size() of the buffer is "
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"automatically adjusted as data is written.\n"
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"The constructor QBuffer(QByteArray) creates a QBuffer using an existing "
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"byte array. The byte array can also be set with setBuffer(). Writing to "
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"the QBuffer will modify the original byte array because QByteArray is "
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"explicitly shared.\n"
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"Use open() to open the buffer before use and to set the mode (read-only, "
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"write-only, etc.). close() closes the buffer. The buffer must be closed "
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"before reopening or calling setBuffer().\n"
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"A common way to use QBuffer is through QDataStream or QTextStream, which "
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"have constructors that take a QBuffer parameter. For convenience, there "
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"are also QDataStream and QTextStream constructors that take a QByteArray "
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"parameter. These constructors create and open an internal QBuffer.\n"
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"Note that QTextStream can also operate on a QString (a Unicode string); a "
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"QBuffer cannot.\n"
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"You can also use QBuffer directly through the standard QIODevice functions "
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"readBlock(), writeBlock() readLine(), at(), getch(), putch() and ungetch().\n"
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"See also QFile, QDataStream, QTextStream, QByteArray, Shared Classes, Collection "
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"Classes and Input/Output and Networking.\n\n"
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"The QBuffer class is an I/O device that operates on a QByteArray.\n"
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"QBuffer is used to read and write to a memory buffer. It is normally "
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"used with a QTextStream or a QDataStream. QBuffer has an associated "
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"QByteArray which holds the buffer data. The size() of the buffer is "
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"automatically adjusted as data is written.\n"
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"The constructor QBuffer(QByteArray) creates a QBuffer using an existing "
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"byte array. The byte array can also be set with setBuffer(). Writing to "
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"the QBuffer will modify the original byte array because QByteArray is "
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"explicitly shared.\n"
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"Use open() to open the buffer before use and to set the mode (read-only, "
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"write-only, etc.). close() closes the buffer. The buffer must be closed "
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"before reopening or calling setBuffer().\n"
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"A common way to use QBuffer is through QDataStream or QTextStream, which "
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"have constructors that take a QBuffer parameter. For convenience, there "
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"are also QDataStream and QTextStream constructors that take a QByteArray "
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"parameter. These constructors create and open an internal QBuffer.\n"
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"Note that QTextStream can also operate on a QString (a Unicode string); a "
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"QBuffer cannot.\n"
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"You can also use QBuffer directly through the standard QIODevice functions "
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"readBlock(), writeBlock() readLine(), at(), getch(), putch() and ungetch().\n"
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"See also QFile, QDataStream, QTextStream, QByteArray, Shared Classes, Collection "
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"Classes and Input/Output and Networking.");
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}
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void tst_QBuffer::writeBlock()
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{
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QFETCH( QString, str );
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QByteArray ba;
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QBuffer buf( &ba );
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buf.open(QIODevice::ReadWrite);
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QByteArray data = str.toLatin1();
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QCOMPARE(buf.write( data.constData(), data.size() ), qint64(data.size()));
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QCOMPARE(buf.data(), str.toLatin1());
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}
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void tst_QBuffer::seek()
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{
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QBuffer buffer;
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buffer.open(QIODevice::WriteOnly);
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QCOMPARE(buffer.size(), qint64(0));
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QCOMPARE(buffer.pos(), qint64(0));
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const qint64 pos = 10;
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QVERIFY(buffer.seek(pos));
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QCOMPARE(buffer.size(), pos);
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}
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void tst_QBuffer::seekTest_data()
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{
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writeBlock_data();
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}
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#define DO_VALID_SEEK(position) { \
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char c; \
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QVERIFY(buf.seek(qint64(position))); \
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QCOMPARE(buf.pos(), qint64(position)); \
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QVERIFY(buf.getChar(&c)); \
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QCOMPARE(QChar(c), str.at(qint64(position))); \
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}
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#define DO_INVALID_SEEK(position) { \
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qint64 prev_pos = buf.pos(); \
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QVERIFY(!buf.seek(qint64(position))); \
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QCOMPARE(buf.pos(), prev_pos); /* position should not be changed */ \
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}
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void tst_QBuffer::seekTest()
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{
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QFETCH(QString, str);
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QByteArray ba;
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QBuffer buf(&ba);
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#if 0
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QCOMPARE(buf.pos(), qint64(-1));
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#endif
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buf.open(QIODevice::ReadWrite);
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QCOMPARE(buf.pos(), qint64(0));
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QByteArray data = str.toLatin1();
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QCOMPARE(buf.write( data.constData(), data.size() ), qint64(data.size()));
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QTest::ignoreMessage(QtWarningMsg, "QBuffer::seek: Invalid pos: -1");
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DO_INVALID_SEEK(-1);
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DO_VALID_SEEK(0);
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DO_VALID_SEEK(str.size() - 1);
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QVERIFY(buf.atEnd());
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DO_VALID_SEEK(str.size() / 2);
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// Special case: valid to seek one position past the buffer.
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// Its then legal to write, but not read.
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{
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char c = 'a';
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QVERIFY(buf.seek(qint64(str.size())));
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QCOMPARE(buf.read(&c, qint64(1)), qint64(0));
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QCOMPARE(c, 'a');
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QCOMPARE(buf.write(&c, qint64(1)), qint64(1));
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}
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// Special case 2: seeking to an arbitrary position beyond the buffer auto-expands it
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// (see Task 184730)
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{
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char c;
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const int offset = 1; // any positive integer will do
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const qint64 pos = buf.size() + offset;
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QVERIFY(buf.seek(pos));
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QCOMPARE(buf.pos(), pos);
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QVERIFY(!buf.getChar(&c));
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QVERIFY(buf.seek(pos - 1));
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QVERIFY(buf.getChar(&c));
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QCOMPARE(c, buf.data().at(pos - 1));
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QVERIFY(buf.seek(pos));
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QVERIFY(buf.putChar(c));
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}
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}
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void tst_QBuffer::read_rawdata()
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{
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static const unsigned char mydata[] = {
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0x01, 0x00, 0x03, 0x84, 0x78, 0x9c, 0x3b, 0x76,
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0xec, 0x18, 0xc3, 0x31, 0x0a, 0xf1, 0xcc, 0x99,
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0x6d, 0x5b
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};
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QByteArray data = QByteArray::fromRawData((const char *)mydata, sizeof(mydata));
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QBuffer buffer(&data);
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buffer.open(QIODevice::ReadOnly);
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QDataStream in(&buffer);
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quint8 ch;
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for (int i = 0; i < (int)sizeof(mydata); ++i) {
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QVERIFY(!buffer.atEnd());
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in >> ch;
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QVERIFY(ch == (quint8)mydata[i]);
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}
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QVERIFY(buffer.atEnd());
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}
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void tst_QBuffer::isSequential()
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{
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QBuffer buf;
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QVERIFY(!buf.isSequential());
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}
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void tst_QBuffer::signalTest_data()
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{
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QTest::addColumn<QByteArray>("sample");
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QTest::newRow("empty") << QByteArray();
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QTest::newRow("size 1") << QByteArray("1");
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QTest::newRow("size 2") << QByteArray("11");
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QTest::newRow("size 100") << QByteArray(100, '1');
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}
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void tst_QBuffer::signalTest()
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{
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QFETCH(QByteArray, sample);
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totalBytesWritten = 0;
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QBuffer buf;
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buf.open(QIODevice::WriteOnly);
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buf.buffer().resize(sample.size() * 10);
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connect(&buf, SIGNAL(readyRead()), this, SLOT(readyReadSlot()));
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connect(&buf, SIGNAL(bytesWritten(qint64)), this, SLOT(bytesWrittenSlot(qint64)));
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for (int i = 0; i < 10; ++i) {
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gotReadyRead = false;
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QCOMPARE(buf.write(sample), qint64(sample.size()));
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if (sample.size() > 0) {
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QTestEventLoop::instance().enterLoop(5);
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if (QTestEventLoop::instance().timeout())
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QFAIL("Timed out when waiting for readyRead()");
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QCOMPARE(totalBytesWritten, qint64(sample.size() * (i + 1)));
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QVERIFY(gotReadyRead);
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} else {
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QCOMPARE(totalBytesWritten, qint64(0));
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QVERIFY(!gotReadyRead);
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}
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}
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}
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void tst_QBuffer::readyReadSlot()
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{
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gotReadyRead = true;
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QTestEventLoop::instance().exitLoop();
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}
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void tst_QBuffer::bytesWrittenSlot(qint64 written)
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{
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totalBytesWritten += written;
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}
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void tst_QBuffer::isClosedAfterClose()
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{
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QBuffer buffer;
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buffer.open(QBuffer::ReadOnly);
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QVERIFY(buffer.isOpen());
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buffer.close();
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QVERIFY(!buffer.isOpen());
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}
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void tst_QBuffer::readLine_data()
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{
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QTest::addColumn<QByteArray>("src");
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QTest::addColumn<int>("maxlen");
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QTest::addColumn<QByteArray>("expected");
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QTest::newRow("1") << QByteArray("line1\nline2\n") << 1024
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<< QByteArray("line1\n");
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QTest::newRow("2") << QByteArray("hi there") << 1024
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<< QByteArray("hi there");
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QTest::newRow("3") << QByteArray("l\n") << 3 << QByteArray("l\n");
|
|
QTest::newRow("4") << QByteArray("l\n") << 2 << QByteArray("l");
|
|
}
|
|
|
|
void tst_QBuffer::readLine()
|
|
{
|
|
QFETCH(QByteArray, src);
|
|
QFETCH(int, maxlen);
|
|
QFETCH(QByteArray, expected);
|
|
|
|
QBuffer buf;
|
|
buf.setBuffer(&src);
|
|
char *result = new char[maxlen + 1];
|
|
result[maxlen] = '\0';
|
|
|
|
QVERIFY(buf.open(QIODevice::ReadOnly));
|
|
|
|
qint64 bytes_read = buf.readLine(result, maxlen);
|
|
|
|
QCOMPARE(bytes_read, qint64(expected.size()));
|
|
QCOMPARE(QByteArray(result), expected);
|
|
|
|
buf.close();
|
|
delete[] result;
|
|
|
|
}
|
|
|
|
void tst_QBuffer::canReadLine_data()
|
|
{
|
|
QTest::addColumn<QByteArray>("src");
|
|
QTest::addColumn<bool>("expected");
|
|
|
|
QTest::newRow("1") << QByteArray("no newline") << false;
|
|
QTest::newRow("2") << QByteArray("two \n lines\n") << true;
|
|
QTest::newRow("3") << QByteArray("\n") << true;
|
|
QTest::newRow("4") << QByteArray() << false;
|
|
}
|
|
|
|
void tst_QBuffer::canReadLine()
|
|
{
|
|
QFETCH(QByteArray, src);
|
|
QFETCH(bool, expected);
|
|
|
|
QBuffer buf;
|
|
buf.setBuffer(&src);
|
|
QVERIFY(!buf.canReadLine());
|
|
QVERIFY(buf.open(QIODevice::ReadOnly));
|
|
QCOMPARE(buf.canReadLine(), expected);
|
|
}
|
|
|
|
void tst_QBuffer::atEnd()
|
|
{
|
|
QBuffer buffer;
|
|
buffer.open(QBuffer::Append);
|
|
buffer.write("heisann");
|
|
buffer.close();
|
|
|
|
buffer.open(QBuffer::ReadOnly);
|
|
buffer.seek(buffer.size());
|
|
char c;
|
|
QVERIFY(!buffer.getChar(&c));
|
|
QCOMPARE(buffer.read(&c, 1), qint64(0));
|
|
}
|
|
|
|
void tst_QBuffer::readLineBoundaries()
|
|
{
|
|
QByteArray line = "This is a line\n";
|
|
QBuffer buffer;
|
|
buffer.open(QIODevice::ReadWrite);
|
|
while (buffer.size() < 16384)
|
|
buffer.write(line);
|
|
|
|
/*
|
|
buffer.seek(0);
|
|
QFile out1("out1.txt");
|
|
out1.open(QFile::WriteOnly);
|
|
out1.write(buffer.readAll());
|
|
out1.close();
|
|
*/
|
|
buffer.seek(0);
|
|
|
|
char c;
|
|
buffer.getChar(&c);
|
|
buffer.ungetChar(c);
|
|
|
|
QFile out2("out2.txt");
|
|
out2.open(QFile::WriteOnly);
|
|
while (!buffer.atEnd())
|
|
out2.write(buffer.readLine());
|
|
|
|
out2.close();
|
|
out2.remove();
|
|
}
|
|
|
|
void tst_QBuffer::writeAfterQByteArrayResize()
|
|
{
|
|
QBuffer buffer;
|
|
QVERIFY(buffer.open(QIODevice::WriteOnly));
|
|
|
|
buffer.write(QByteArray().fill('a', 1000));
|
|
QCOMPARE(buffer.buffer().size(), 1000);
|
|
|
|
// resize the QByteArray behind QBuffer's back
|
|
buffer.buffer().clear();
|
|
buffer.seek(0);
|
|
QCOMPARE(buffer.buffer().size(), 0);
|
|
|
|
buffer.write(QByteArray().fill('b', 1000));
|
|
QCOMPARE(buffer.buffer().size(), 1000);
|
|
}
|
|
|
|
void tst_QBuffer::read_null()
|
|
{
|
|
QByteArray buffer;
|
|
buffer.resize(32000);
|
|
for (int i = 0; i < buffer.size(); ++i)
|
|
buffer[i] = char(i & 0xff);
|
|
|
|
QBuffer in(&buffer);
|
|
in.open(QIODevice::ReadOnly);
|
|
|
|
QByteArray chunk;
|
|
|
|
chunk.resize(16380);
|
|
in.read(chunk.data(), 16380);
|
|
|
|
QCOMPARE(chunk, buffer.mid(0, chunk.size()));
|
|
|
|
in.read(chunk.data(), 0);
|
|
|
|
chunk.resize(8);
|
|
in.read(chunk.data(), chunk.size());
|
|
|
|
QCOMPARE(chunk, buffer.mid(16380, chunk.size()));
|
|
}
|
|
|
|
QTEST_MAIN(tst_QBuffer)
|
|
#include "tst_qbuffer.moc"
|