Long live Qt 4.5!

1 files changed, 533 insertions, 0 deletions

diff --git a/tests/auto/qbuffer/tst_qbuffer.cpp b/tests/auto/qbuffer/tst_qbuffer.cpp
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+++ b/tests/auto/qbuffer/tst_qbuffer.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+
+
+#include <QBuffer>
+#include <QByteArray>
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+class tst_QBuffer : public QObject
+{
+    Q_OBJECT
+public:
+    tst_QBuffer();
+
+private slots:
+    void getSetCheck();
+    void readBlock();
+    void readBlockPastEnd();
+    void writeBlock_data();
+    void writeBlock();
+    void seek();
+    void seekTest_data();
+    void seekTest();
+    void read_rawdata();
+    void isSequential();
+    void signalTest_data();
+    void signalTest();
+    void isClosedAfterClose();
+    void readLine_data();
+    void readLine();
+    void canReadLine_data();
+    void canReadLine();
+    void atEnd();
+    void readLineBoundaries();
+    void writeAfterQByteArrayResize();
+
+protected slots:
+    void readyReadSlot();
+    void bytesWrittenSlot(qint64 written);
+
+private:
+    qint64 totalBytesWritten;
+    bool gotReadyRead;
+};
+
+// Testing get/set functions
+void tst_QBuffer::getSetCheck()
+{
+    QBuffer obj1;
+    // const QByteArray & QBuffer::data()
+    // void QBuffer::setData(const QByteArray &)
+    QByteArray var1("Bogus data");
+    obj1.setData(var1);
+    QCOMPARE(var1, obj1.data());
+    obj1.setData(QByteArray());
+    QCOMPARE(QByteArray(), obj1.data());
+}
+
+tst_QBuffer::tst_QBuffer()
+{
+}
+
+// some status() tests, too
+void tst_QBuffer::readBlock()
+{
+//    QTest::ignoreMessage(QtWarningMsg, "QIODevice::read: File not open");
+//    QTest::ignoreMessage(QtWarningMsg, "QIODevice::read: Read operation not permitted");
+
+    const int arraySize = 10;
+    char a[arraySize];
+    QBuffer b;
+    QCOMPARE(b.read(a, arraySize), (qint64) -1); // not opened
+    QVERIFY(b.atEnd());
+
+    QByteArray ba;
+    ba.resize(arraySize);
+    b.setBuffer(&ba);
+    b.open(QIODevice::WriteOnly);
+    QTest::ignoreMessage(QtWarningMsg, "QIODevice::read: WriteOnly device");
+    QCOMPARE(b.read(a, arraySize), (qint64) -1); // no read access
+    b.close();
+
+    b.open(QIODevice::ReadOnly);
+    QCOMPARE(b.read(a, arraySize), (qint64) arraySize);
+    QVERIFY(b.atEnd());
+
+    // up to 3.0.x reading beyond the end was an error while ok
+    // this has been made consistent with other QIODevice sub classes in 3.1
+    QCOMPARE(b.read(a, 1), qint64(0));
+    QVERIFY(b.atEnd());
+
+    // read in two chunks
+    b.close();
+    b.open(QIODevice::ReadOnly);
+    QCOMPARE(b.read(a, arraySize/2), (qint64) arraySize/2);
+    QCOMPARE(b.read(a + arraySize/2, arraySize - arraySize/2),
+            (qint64)(arraySize - arraySize/2));
+    QVERIFY(b.atEnd());
+}
+
+void tst_QBuffer::readBlockPastEnd()
+{
+    QByteArray arr(4096 + 3616, 'd');
+    QBuffer buf(&arr);
+
+    buf.open(QIODevice::ReadOnly);
+    char dummy[4096];
+
+    buf.read(1);
+
+    QCOMPARE(buf.read(dummy, 4096), qint64(4096));
+    QCOMPARE(buf.read(dummy, 4096), qint64(3615));
+    QVERIFY(buf.atEnd());
+}
+
+void tst_QBuffer::writeBlock_data()
+{
+    QTest::addColumn<QString>("str");
+
+    QTest::newRow( "small_bytearray" ) << QString("Test");
+    QTest::newRow( "large_bytearray" ) << QString("The QBuffer class is an I/O device that operates on a QByteArray.\n"
+				       "QBuffer is used to read and write to a memory buffer. It is normally "
+				       "used with a QTextStream or a QDataStream. QBuffer has an associated "
+				       "QByteArray which holds the buffer data. The size() of the buffer is "
+				       "automatically adjusted as data is written.\n"
+				       "The constructor QBuffer(QByteArray) creates a QBuffer using an existing "
+				       "byte array. The byte array can also be set with setBuffer(). Writing to "
+				       "the QBuffer will modify the original byte array because QByteArray is "
+				       "explicitly shared.\n"
+				       "Use open() to open the buffer before use and to set the mode (read-only, "
+				       "write-only, etc.). close() closes the buffer. The buffer must be closed "
+				       "before reopening or calling setBuffer().\n"
+				       "A common way to use QBuffer is through QDataStream or QTextStream, which "
+				       "have constructors that take a QBuffer parameter. For convenience, there "
+				       "are also QDataStream and QTextStream constructors that take a QByteArray "
+				       "parameter. These constructors create and open an internal QBuffer.\n"
+				       "Note that QTextStream can also operate on a QString (a Unicode string); a "
+				       "QBuffer cannot.\n"
+				       "You can also use QBuffer directly through the standard QIODevice functions "
+				       "readBlock(), writeBlock() readLine(), at(), getch(), putch() and ungetch().\n"
+				       "See also QFile, QDataStream, QTextStream, QByteArray, Shared Classes, Collection "
+				       "Classes and Input/Output and Networking.\n\n"
+				       "The QBuffer class is an I/O device that operates on a QByteArray.\n"
+				       "QBuffer is used to read and write to a memory buffer. It is normally "
+				       "used with a QTextStream or a QDataStream. QBuffer has an associated "
+				       "QByteArray which holds the buffer data. The size() of the buffer is "
+				       "automatically adjusted as data is written.\n"
+				       "The constructor QBuffer(QByteArray) creates a QBuffer using an existing "
+				       "byte array. The byte array can also be set with setBuffer(). Writing to "
+				       "the QBuffer will modify the original byte array because QByteArray is "
+				       "explicitly shared.\n"
+				       "Use open() to open the buffer before use and to set the mode (read-only, "
+				       "write-only, etc.). close() closes the buffer. The buffer must be closed "
+				       "before reopening or calling setBuffer().\n"
+				       "A common way to use QBuffer is through QDataStream or QTextStream, which "
+				       "have constructors that take a QBuffer parameter. For convenience, there "
+				       "are also QDataStream and QTextStream constructors that take a QByteArray "
+				       "parameter. These constructors create and open an internal QBuffer.\n"
+				       "Note that QTextStream can also operate on a QString (a Unicode string); a "
+				       "QBuffer cannot.\n"
+				       "You can also use QBuffer directly through the standard QIODevice functions "
+				       "readBlock(), writeBlock() readLine(), at(), getch(), putch() and ungetch().\n"
+				       "See also QFile, QDataStream, QTextStream, QByteArray, Shared Classes, Collection "
+				       "Classes and Input/Output and Networking.\n\n"
+				       "The QBuffer class is an I/O device that operates on a QByteArray.\n"
+				       "QBuffer is used to read and write to a memory buffer. It is normally "
+				       "used with a QTextStream or a QDataStream. QBuffer has an associated "
+				       "QByteArray which holds the buffer data. The size() of the buffer is "
+				       "automatically adjusted as data is written.\n"
+				       "The constructor QBuffer(QByteArray) creates a QBuffer using an existing "
+				       "byte array. The byte array can also be set with setBuffer(). Writing to "
+				       "the QBuffer will modify the original byte array because QByteArray is "
+				       "explicitly shared.\n"
+				       "Use open() to open the buffer before use and to set the mode (read-only, "
+				       "write-only, etc.). close() closes the buffer. The buffer must be closed "
+				       "before reopening or calling setBuffer().\n"
+				       "A common way to use QBuffer is through QDataStream or QTextStream, which "
+				       "have constructors that take a QBuffer parameter. For convenience, there "
+				       "are also QDataStream and QTextStream constructors that take a QByteArray "
+				       "parameter. These constructors create and open an internal QBuffer.\n"
+				       "Note that QTextStream can also operate on a QString (a Unicode string); a "
+				       "QBuffer cannot.\n"
+				       "You can also use QBuffer directly through the standard QIODevice functions "
+				       "readBlock(), writeBlock() readLine(), at(), getch(), putch() and ungetch().\n"
+				       "See also QFile, QDataStream, QTextStream, QByteArray, Shared Classes, Collection "
+				       "Classes and Input/Output and Networking.");
+}
+
+void tst_QBuffer::writeBlock()
+{
+    QFETCH( QString, str );
+
+    QByteArray ba;
+    QBuffer buf( &ba );
+    buf.open(QIODevice::ReadWrite);
+    QByteArray data = str.toLatin1();
+    QCOMPARE(buf.write( data.constData(), data.size() ), qint64(data.size()));
+
+    QCOMPARE(buf.data(), str.toLatin1());
+}
+
+void tst_QBuffer::seek()
+{
+    QBuffer buffer;
+    buffer.open(QIODevice::WriteOnly);
+    QCOMPARE(buffer.size(), qint64(0));
+    QCOMPARE(buffer.pos(), qint64(0));
+    const qint64 pos = 10;
+    QVERIFY(buffer.seek(pos));
+    QCOMPARE(buffer.size(), pos);
+}
+
+void tst_QBuffer::seekTest_data()
+{
+    writeBlock_data();
+}
+
+#define DO_VALID_SEEK(position) {                                            \
+    char c;                                                                  \
+    QVERIFY(buf.seek(qint64(position)));                                      \
+    QCOMPARE(buf.pos(), qint64(position));                                    \
+    QVERIFY(buf.getChar(&c));                                                 \
+    QCOMPARE(QChar(c), str.at(qint64(position)));                             \
+}
+#define DO_INVALID_SEEK(position) {                                          \
+    qint64 prev_pos = buf.pos();                                             \
+    QVERIFY(!buf.seek(qint64(position)));                                     \
+    QCOMPARE(buf.pos(), prev_pos); /* position should not be changed */                  \
+}
+
+void tst_QBuffer::seekTest()
+{
+    QFETCH(QString, str);
+
+    QByteArray ba;
+    QBuffer buf(&ba);
+#if 0
+    QCOMPARE(buf.pos(), qint64(-1));
+#endif
+    buf.open(QIODevice::ReadWrite);
+    QCOMPARE(buf.pos(), qint64(0));
+
+    QByteArray data = str.toLatin1();
+    QCOMPARE(buf.write( data.constData(), data.size() ), qint64(data.size()));
+
+    QTest::ignoreMessage(QtWarningMsg, "QBuffer::seek: Invalid pos: -1");
+    DO_INVALID_SEEK(-1);
+
+    DO_VALID_SEEK(0);
+    DO_VALID_SEEK(str.size() - 1);
+    QVERIFY(buf.atEnd());
+    DO_VALID_SEEK(str.size() / 2);
+
+    // Special case: valid to seek one position past the buffer.
+    // Its then legal to write, but not read.
+    {
+        char c = 'a';
+        QVERIFY(buf.seek(qint64(str.size())));
+        QCOMPARE(buf.read(&c, qint64(1)), qint64(0));
+        QCOMPARE(c, 'a');
+        QCOMPARE(buf.write(&c, qint64(1)), qint64(1));
+    }
+
+    // Special case 2: seeking to an arbitrary position beyond the buffer auto-expands it
+    // (see Task 184730)
+    {
+        char c;
+        const int offset = 1;
+        Q_ASSERT(offset > 0); // any positive integer will do
+        const qint64 pos = buf.size() + offset;
+        QVERIFY(buf.seek(pos));
+        QCOMPARE(buf.pos(), pos);
+        QVERIFY(!buf.getChar(&c));
+        QVERIFY(buf.seek(pos - 1));
+        QVERIFY(buf.getChar(&c));
+        QCOMPARE(c, buf.data().at(pos - 1));
+        QVERIFY(buf.seek(pos));
+        QVERIFY(buf.putChar(c));
+    }
+}
+
+void tst_QBuffer::read_rawdata()
+{
+    static const unsigned char mydata[] = {
+        0x01, 0x00, 0x03, 0x84, 0x78, 0x9c, 0x3b, 0x76,
+        0xec, 0x18, 0xc3, 0x31, 0x0a, 0xf1, 0xcc, 0x99,
+        0x6d, 0x5b
+    };
+
+    QByteArray data = QByteArray::fromRawData((const char *)mydata, sizeof(mydata));
+    QBuffer buffer(&data);
+    buffer.open(QIODevice::ReadOnly);
+    QDataStream in(&buffer);
+    quint8 ch;
+    for (int i = 0; i < (int)sizeof(mydata); ++i) {
+        QVERIFY(!buffer.atEnd());
+        in >> ch;
+        QVERIFY(ch == (quint8)mydata[i]);
+    }
+    QVERIFY(buffer.atEnd());
+}
+
+void tst_QBuffer::isSequential()
+{
+    QBuffer buf;
+    QVERIFY(!buf.isSequential());
+}
+
+void tst_QBuffer::signalTest_data()
+{
+    QTest::addColumn<QByteArray>("sample");
+
+    QTest::newRow("empty") << QByteArray();
+    QTest::newRow("size 1") << QByteArray("1");
+    QTest::newRow("size 2") << QByteArray("11");
+    QTest::newRow("size 100") << QByteArray(100, '1');
+}
+
+void tst_QBuffer::signalTest()
+{
+    QFETCH(QByteArray, sample);
+
+    totalBytesWritten = 0;
+
+    QBuffer buf;
+    buf.open(QIODevice::WriteOnly);
+
+    buf.buffer().resize(sample.size() * 10);
+    connect(&buf, SIGNAL(readyRead()), this, SLOT(readyReadSlot()));
+    connect(&buf, SIGNAL(bytesWritten(qint64)), this, SLOT(bytesWrittenSlot(qint64)));
+
+    for (int i = 0; i < 10; ++i) {
+        gotReadyRead = false;
+        QCOMPARE(buf.write(sample), qint64(sample.size()));
+        if (sample.size() > 0) {
+            QTestEventLoop::instance().enterLoop(5);
+            if (QTestEventLoop::instance().timeout())
+                QFAIL("Timed out when waiting for readyRead()");
+            QCOMPARE(totalBytesWritten, qint64(sample.size() * (i + 1)));
+            QVERIFY(gotReadyRead);
+        } else {
+            QCOMPARE(totalBytesWritten, qint64(0));
+            QVERIFY(!gotReadyRead);
+        }
+    }
+}
+
+void tst_QBuffer::readyReadSlot()
+{
+    gotReadyRead = true;
+    QTestEventLoop::instance().exitLoop();
+}
+
+void tst_QBuffer::bytesWrittenSlot(qint64 written)
+{
+    totalBytesWritten += written;
+}
+
+void tst_QBuffer::isClosedAfterClose()
+{
+    QBuffer buffer;
+    buffer.open(QBuffer::ReadOnly);
+    QVERIFY(buffer.isOpen());
+    buffer.close();
+    QVERIFY(!buffer.isOpen());
+}
+
+void tst_QBuffer::readLine_data()
+{
+    QTest::addColumn<QByteArray>("src");
+    QTest::addColumn<int>("maxlen");
+    QTest::addColumn<QByteArray>("expected");
+
+    QTest::newRow("1") << QByteArray("line1\nline2\n") << 1024
+                    << QByteArray("line1\n");
+    QTest::newRow("2") << QByteArray("hi there") << 1024
+                    << QByteArray("hi there");
+    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);
+}
+
+QTEST_MAIN(tst_QBuffer)
+#include "tst_qbuffer.moc"