qt5base-lts/tests/auto/gui/image/qimagereader/tst_qimagereader.cpp
Frederik Gladhorn e65cd6f379 Merge remote-tracking branch 'origin/stable' into dev
Conflicts:
	src/concurrent/doc/qtconcurrent.qdocconf
	src/corelib/doc/qtcore.qdocconf
	src/corelib/global/qglobal.h
	src/dbus/doc/qtdbus.qdocconf
	src/dbus/qdbusmessage.h
	src/gui/doc/qtgui.qdocconf
	src/gui/image/qimagereader.cpp
	src/network/doc/qtnetwork.qdocconf
	src/opengl/doc/qtopengl.qdocconf
	src/opengl/qgl.h
	src/plugins/platforms/windows/qwindowswindow.cpp
	src/printsupport/doc/qtprintsupport.qdocconf
	src/sql/doc/qtsql.qdocconf
	src/testlib/doc/qttestlib.qdocconf
	src/tools/qdoc/doc/config/qt-cpp-ignore.qdocconf
	src/widgets/doc/qtwidgets.qdocconf
	src/xml/doc/qtxml.qdocconf

Change-Id: Ie9a1fa2cc44bec22a0b942e817a1095ca3414629
2013-02-14 14:24:57 +01:00

1889 lines
70 KiB
C++

/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <QBuffer>
#include <QDebug>
#include <QFile>
#include <QImage>
#include <QImageReader>
#include <QImageWriter>
#include <QPixmap>
#include <QSet>
#include <QTcpSocket>
#include <QTcpServer>
#include <QTimer>
#include <QTemporaryDir>
typedef QMap<QString, QString> QStringMap;
typedef QList<int> QIntList;
Q_DECLARE_METATYPE(QImage::Format)
class tst_QImageReader : public QObject
{
Q_OBJECT
public:
tst_QImageReader();
virtual ~tst_QImageReader();
public slots:
void initTestCase();
void cleanupTestCase();
private slots:
void getSetCheck();
void readImage_data();
void readImage();
void jpegRgbCmyk();
void setScaledSize_data();
void setScaledSize();
void setClipRect_data();
void setClipRect();
void setScaledClipRect_data();
void setScaledClipRect();
void imageFormat_data();
void imageFormat();
void blackXPM();
void transparentXPM();
void multiWordNamedColorXPM();
void supportedFormats();
void supportedMimeTypes();
void readFromDevice_data();
void readFromDevice();
void readFromFileAfterJunk_data();
void readFromFileAfterJunk();
void devicePosition_data();
void devicePosition();
void setBackgroundColor_data();
void setBackgroundColor();
void supportsAnimation_data();
void supportsAnimation();
void readFromResources_data();
void readFromResources();
void sizeBeforeRead_data();
void sizeBeforeRead();
void sizeBeforeFormat_data();
void sizeBeforeFormat();
void imageFormatBeforeRead_data();
void imageFormatBeforeRead();
void gifHandlerBugs();
void animatedGif();
void gifImageCount();
void gifLoopCount();
void readCorruptImage_data();
void readCorruptImage();
void readCorruptBmp();
void supportsOption_data();
void supportsOption();
void autoDetectImageFormat();
void fileNameProbing();
void pixelCompareWithBaseline_data();
void pixelCompareWithBaseline();
void task255627_setNullScaledSize_data();
void task255627_setNullScaledSize();
void testIgnoresFormatAndExtension_data();
void testIgnoresFormatAndExtension();
void saveFormat_data();
void saveFormat();
void readText_data();
void readText();
void preserveTexts_data();
void preserveTexts();
private:
QString prefix;
QTemporaryDir m_temporaryDir;
};
// helper to skip an autotest when the given image format is not supported
#define SKIP_IF_UNSUPPORTED(format) do { \
if (!QByteArray(format).isEmpty() && !QImageReader::supportedImageFormats().contains(format)) \
QSKIP("\"" + QByteArray(format) + "\" images are not supported"); \
} while (0)
// Testing get/set functions
void tst_QImageReader::getSetCheck()
{
QImageReader obj1;
// QIODevice * QImageReader::device()
// void QImageReader::setDevice(QIODevice *)
QFile *var1 = new QFile;
obj1.setDevice(var1);
//A bit strange but that's the only way to compile under windows.
QCOMPARE((QIODevice *) var1, obj1.device());
obj1.setDevice((QIODevice *)0);
QCOMPARE((QIODevice *) 0,
obj1.device());
delete var1;
}
tst_QImageReader::tst_QImageReader() :
m_temporaryDir(QStringLiteral("tst_qimagereaderXXXXXX"))
{
m_temporaryDir.setAutoRemove(true);
}
tst_QImageReader::~tst_QImageReader()
{
}
void tst_QImageReader::initTestCase()
{
prefix = QFINDTESTDATA("images/");
if (prefix.isEmpty())
QFAIL("Can't find images directory!");
QVERIFY(m_temporaryDir.isValid());
}
void tst_QImageReader::cleanupTestCase()
{
}
void tst_QImageReader::readImage_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<bool>("success");
QTest::addColumn<QByteArray>("format");
QTest::newRow("empty") << QString() << false << QByteArray();
QTest::newRow("BMP: colorful") << QString("colorful.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: test32bfv4") << QString("test32bfv4.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: test32v5") << QString("test32v5.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: font") << QString("font.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: signed char") << QString("crash-signed-char.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: 4bpp RLE") << QString("4bpp-rle.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: 4bpp uncompressed") << QString("tst7.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: 16bpp") << QString("16bpp.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: negative height") << QString("negativeheight.bmp") << true << QByteArray("bmp");
QTest::newRow("BMP: high mask bit set") << QString("rgb32bf.bmp") << true << QByteArray("bmp");
QTest::newRow("XPM: marble") << QString("marble.xpm") << true << QByteArray("xpm");
QTest::newRow("PNG: kollada") << QString("kollada.png") << true << QByteArray("png");
QTest::newRow("PPM: teapot") << QString("teapot.ppm") << true << QByteArray("ppm");
QTest::newRow("PPM: runners") << QString("runners.ppm") << true << QByteArray("ppm");
QTest::newRow("PPM: test") << QString("test.ppm") << true << QByteArray("ppm");
QTest::newRow("XBM: gnus") << QString("gnus.xbm") << true << QByteArray("xbm");
QTest::newRow("JPEG: beavis") << QString("beavis.jpg") << true << QByteArray("jpeg");
QTest::newRow("JPEG: qtbug13653") << QString("qtbug13653-no_eoi.jpg") << true << QByteArray("jpeg");
QTest::newRow("GIF: earth") << QString("earth.gif") << true << QByteArray("gif");
QTest::newRow("GIF: trolltech") << QString("trolltech.gif") << true << QByteArray("gif");
QTest::newRow("SVG: rect") << QString("rect.svg") << true << QByteArray("svg");
QTest::newRow("SVGZ: rect") << QString("rect.svgz") << true << QByteArray("svgz");
}
void tst_QImageReader::readImage()
{
QFETCH(QString, fileName);
QFETCH(bool, success);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
for (int i = 0; i < 2; ++i) {
QImageReader io(prefix + fileName, i ? QByteArray() : format);
if (success) {
if (!io.supportsAnimation())
QVERIFY(io.imageCount() > 0);
} else {
QCOMPARE(io.imageCount(), -1);
}
QImage image = io.read();
if (!success) {
QVERIFY(image.isNull());
return;
}
QVERIFY2(!image.isNull(), io.errorString().toLatin1().constData());
// No format
QImageReader io2(prefix + fileName);
QVERIFY2(!io2.read().isNull(), io.errorString().toLatin1().constData());
// No extension, no format
QImageReader io3(prefix + fileName.left(fileName.lastIndexOf(QLatin1Char('.'))));
QVERIFY2(!io3.read().isNull(), io.errorString().toLatin1().constData());
// Read into \a image2
QImage image2;
QImageReader image2Reader(prefix + fileName, i ? QByteArray() : format);
QCOMPARE(image2Reader.format(), format);
QVERIFY(image2Reader.read(&image2));
if (image2Reader.canRead()) {
if (i)
QVERIFY(!image2Reader.format().isEmpty());
else
QCOMPARE(image2Reader.format(), format);
} else {
if (i)
QVERIFY(image2Reader.format().isEmpty());
else
QVERIFY(!image2Reader.format().isEmpty());
}
QCOMPARE(image, image2);
do {
QVERIFY2(!image.isNull(), io.errorString().toLatin1().constData());
} while (!(image = io.read()).isNull());
}
}
void tst_QImageReader::jpegRgbCmyk()
{
QImage image1(prefix + QLatin1String("YCbCr_cmyk.jpg"));
QImage image2(prefix + QLatin1String("YCbCr_cmyk.png"));
if (image1 != image2) {
// first, do some obvious tests
QCOMPARE(image1.height(), image2.height());
QCOMPARE(image1.width(), image2.width());
QCOMPARE(image1.format(), image2.format());
QCOMPARE(image1.format(), QImage::Format_RGB32);
// compare all the pixels with a slack of 3. This ignores rounding errors
// in libjpeg/libpng, where some versions sacrifice accuracy for speed.
for (int h = 0; h < image1.height(); ++h) {
const uchar *s1 = image1.constScanLine(h);
const uchar *s2 = image2.constScanLine(h);
for (int w = 0; w < image1.width() * 4; ++w) {
if (*s1 != *s2) {
QVERIFY2(qAbs(*s1 - *s2) <= 3, qPrintable(QString("images differ in line %1, col %2 (image1: %3, image2: %4)").arg(h).arg(w).arg(*s1, 0, 16).arg(*s2, 0, 16)));
}
s1++;
s2++;
}
}
}
}
void tst_QImageReader::setScaledSize_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QSize>("newSize");
QTest::addColumn<QByteArray>("format");
QTest::newRow("BMP: colorful") << "colorful" << QSize(200, 200) << QByteArray("bmp");
QTest::newRow("BMP: font") << "font" << QSize(200, 200) << QByteArray("bmp");
QTest::newRow("XPM: marble") << "marble" << QSize(200, 200) << QByteArray("xpm");
QTest::newRow("PNG: kollada") << "kollada" << QSize(200, 200) << QByteArray("png");
QTest::newRow("PPM: teapot") << "teapot" << QSize(200, 200) << QByteArray("ppm");
QTest::newRow("PPM: runners") << "runners.ppm" << QSize(400, 400) << QByteArray("ppm");
QTest::newRow("PPM: test") << "test.ppm" << QSize(10, 10) << QByteArray("ppm");
QTest::newRow("XBM: gnus") << "gnus" << QSize(200, 200) << QByteArray("xbm");
QTest::newRow("JPEG: beavis A") << "beavis" << QSize(200, 200) << QByteArray("jpeg");
QTest::newRow("JPEG: beavis B") << "beavis" << QSize(175, 175) << QByteArray("jpeg");
QTest::newRow("JPEG: beavis C") << "beavis" << QSize(100, 100) << QByteArray("jpeg");
QTest::newRow("JPEG: beavis D") << "beavis" << QSize(100, 200) << QByteArray("jpeg");
QTest::newRow("JPEG: beavis E") << "beavis" << QSize(200, 100) << QByteArray("jpeg");
QTest::newRow("JPEG: beavis F") << "beavis" << QSize(87, 87) << QByteArray("jpeg");
QTest::newRow("JPEG: beavis G") << "beavis" << QSize(50, 45) << QByteArray("jpeg");
QTest::newRow("JPEG: beavis H") << "beavis" << QSize(43, 43) << QByteArray("jpeg");
QTest::newRow("JPEG: beavis I") << "beavis" << QSize(25, 25) << QByteArray("jpeg");
QTest::newRow("GIF: earth") << "earth" << QSize(200, 200) << QByteArray("gif");
QTest::newRow("GIF: trolltech") << "trolltech" << QSize(200, 200) << QByteArray("gif");
QTest::newRow("SVG: rect") << "rect" << QSize(200, 200) << QByteArray("svg");
QTest::newRow("SVGZ: rect") << "rect" << QSize(200, 200) << QByteArray("svgz");
}
void tst_QImageReader::setScaledSize()
{
QFETCH(QString, fileName);
QFETCH(QSize, newSize);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
QImageReader reader(prefix + fileName);
reader.setScaledSize(newSize);
QImage image = reader.read();
QVERIFY(!image.isNull());
QCOMPARE(image.size(), newSize);
}
void tst_QImageReader::task255627_setNullScaledSize_data()
{
setScaledSize_data();
}
void tst_QImageReader::task255627_setNullScaledSize()
{
QFETCH(QString, fileName);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
QImageReader reader(prefix + fileName);
// set a null size
reader.setScaledSize(QSize(0, 0));
reader.setQuality(0);
QImage image = reader.read();
QVERIFY(image.isNull());
QCOMPARE(image.size(), QSize(0, 0));
}
void tst_QImageReader::setClipRect_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QRect>("newRect");
QTest::addColumn<QByteArray>("format");
QTest::newRow("BMP: colorful") << "colorful" << QRect(0, 0, 50, 50) << QByteArray("bmp");
QTest::newRow("BMP: test32bfv4") << "test32bfv4" << QRect(0, 0, 50, 50) << QByteArray("bmp");
QTest::newRow("BMP: test32v5") << "test32v5" << QRect(0, 0, 50, 50) << QByteArray("bmp");
QTest::newRow("BMP: font") << "font" << QRect(0, 0, 50, 50) << QByteArray("bmp");
QTest::newRow("BMP: 4bpp uncompressed") << "tst7.bmp" << QRect(0, 0, 31, 31) << QByteArray("bmp");
QTest::newRow("XPM: marble") << "marble" << QRect(0, 0, 50, 50) << QByteArray("xpm");
QTest::newRow("PNG: kollada") << "kollada" << QRect(0, 0, 50, 50) << QByteArray("png");
QTest::newRow("PPM: teapot") << "teapot" << QRect(0, 0, 50, 50) << QByteArray("ppm");
QTest::newRow("PPM: runners") << "runners.ppm" << QRect(0, 0, 50, 50) << QByteArray("ppm");
QTest::newRow("PPM: test") << "test.ppm" << QRect(0, 0, 50, 50) << QByteArray("ppm");
QTest::newRow("XBM: gnus") << "gnus" << QRect(0, 0, 50, 50) << QByteArray("xbm");
QTest::newRow("JPEG: beavis") << "beavis" << QRect(0, 0, 50, 50) << QByteArray("jpeg");
QTest::newRow("GIF: earth") << "earth" << QRect(0, 0, 50, 50) << QByteArray("gif");
QTest::newRow("GIF: trolltech") << "trolltech" << QRect(0, 0, 50, 50) << QByteArray("gif");
QTest::newRow("SVG: rect") << "rect" << QRect(0, 0, 50, 50) << QByteArray("svg");
QTest::newRow("SVGZ: rect") << "rect" << QRect(0, 0, 50, 50) << QByteArray("svgz");
}
void tst_QImageReader::setClipRect()
{
QFETCH(QString, fileName);
QFETCH(QRect, newRect);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
QImageReader reader(prefix + fileName);
reader.setClipRect(newRect);
QImage image = reader.read();
QVERIFY(!image.isNull());
QCOMPARE(image.rect(), newRect);
QImageReader originalReader(prefix + fileName);
QImage originalImage = originalReader.read();
QCOMPARE(originalImage.copy(newRect), image);
}
void tst_QImageReader::setScaledClipRect_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QRect>("newRect");
QTest::addColumn<QByteArray>("format");
QTest::newRow("BMP: colorful") << "colorful" << QRect(0, 0, 50, 50) << QByteArray("bmp");
QTest::newRow("BMP: test32bfv4") << "test32bfv4" << QRect(0, 0, 50, 50) << QByteArray("bmp");
QTest::newRow("BMP: test32v5") << "test32v5" << QRect(0, 0, 50, 50) << QByteArray("bmp");
QTest::newRow("BMP: font") << "font" << QRect(0, 0, 50, 50) << QByteArray("bmp");
QTest::newRow("XPM: marble") << "marble" << QRect(0, 0, 50, 50) << QByteArray("xpm");
QTest::newRow("PNG: kollada") << "kollada" << QRect(0, 0, 50, 50) << QByteArray("png");
QTest::newRow("PPM: teapot") << "teapot" << QRect(0, 0, 50, 50) << QByteArray("ppm");
QTest::newRow("PPM: runners") << "runners.ppm" << QRect(0, 0, 50, 50) << QByteArray("ppm");
QTest::newRow("PPM: test") << "test.ppm" << QRect(0, 0, 50, 50) << QByteArray("ppm");
QTest::newRow("XBM: gnus") << "gnus" << QRect(0, 0, 50, 50) << QByteArray("xbm");
QTest::newRow("JPEG: beavis") << "beavis" << QRect(0, 0, 50, 50) << QByteArray("jpeg");
QTest::newRow("GIF: earth") << "earth" << QRect(0, 0, 50, 50) << QByteArray("gif");
QTest::newRow("GIF: trolltech") << "trolltech" << QRect(0, 0, 50, 50) << QByteArray("gif");
QTest::newRow("SVG: rect") << "rect" << QRect(0, 0, 50, 50) << QByteArray("svg");
QTest::newRow("SVGZ: rect") << "rect" << QRect(0, 0, 50, 50) << QByteArray("svgz");
}
void tst_QImageReader::setScaledClipRect()
{
QFETCH(QString, fileName);
QFETCH(QRect, newRect);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
QImageReader reader(prefix + fileName);
reader.setScaledSize(QSize(300, 300));
reader.setScaledClipRect(newRect);
QImage image = reader.read();
QVERIFY(!image.isNull());
QCOMPARE(image.rect(), newRect);
QImageReader originalReader(prefix + fileName);
originalReader.setScaledSize(QSize(300, 300));
QImage originalImage = originalReader.read();
QCOMPARE(originalImage.copy(newRect), image);
}
void tst_QImageReader::imageFormat_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QByteArray>("format");
QTest::addColumn<QImage::Format>("imageFormat");
QTest::newRow("pbm") << QString("image.pbm") << QByteArray("pbm") << QImage::Format_Mono;
QTest::newRow("pgm") << QString("image.pgm") << QByteArray("pgm") << QImage::Format_Indexed8;
QTest::newRow("ppm-1") << QString("image.ppm") << QByteArray("ppm") << QImage::Format_RGB32;
QTest::newRow("ppm-2") << QString("teapot.ppm") << QByteArray("ppm") << QImage::Format_RGB32;
QTest::newRow("ppm-3") << QString("runners.ppm") << QByteArray("ppm") << QImage::Format_RGB32;
QTest::newRow("ppm-4") << QString("test.ppm") << QByteArray("ppm") << QImage::Format_RGB32;
QTest::newRow("jpeg-1") << QString("beavis.jpg") << QByteArray("jpeg") << QImage::Format_Indexed8;
QTest::newRow("jpeg-2") << QString("YCbCr_cmyk.jpg") << QByteArray("jpeg") << QImage::Format_RGB32;
QTest::newRow("jpeg-3") << QString("YCbCr_rgb.jpg") << QByteArray("jpeg") << QImage::Format_RGB32;
QTest::newRow("gif-1") << QString("earth.gif") << QByteArray("gif") << QImage::Format_Invalid;
QTest::newRow("gif-2") << QString("trolltech.gif") << QByteArray("gif") << QImage::Format_Invalid;
QTest::newRow("xbm") << QString("gnus.xbm") << QByteArray("xbm") << QImage::Format_MonoLSB;
QTest::newRow("xpm") << QString("marble.xpm") << QByteArray("xpm") << QImage::Format_Indexed8;
QTest::newRow("bmp-1") << QString("colorful.bmp") << QByteArray("bmp") << QImage::Format_Indexed8;
QTest::newRow("bmp-2") << QString("font.bmp") << QByteArray("bmp") << QImage::Format_Indexed8;
QTest::newRow("bmp-3") << QString("test32bfv4.bmp") << QByteArray("bmp") << QImage::Format_RGB32;
QTest::newRow("bmp-4") << QString("test32v5.bmp") << QByteArray("bmp") << QImage::Format_RGB32;
QTest::newRow("png") << QString("kollada.png") << QByteArray("png") << QImage::Format_ARGB32;
QTest::newRow("png-2") << QString("YCbCr_cmyk.png") << QByteArray("png") << QImage::Format_RGB32;
QTest::newRow("svg") << QString("rect.svg") << QByteArray("svg") << QImage::Format_ARGB32_Premultiplied;
QTest::newRow("svgz") << QString("rect.svgz") << QByteArray("svgz") << QImage::Format_ARGB32_Premultiplied;
}
void tst_QImageReader::imageFormat()
{
QFETCH(QString, fileName);
QFETCH(QByteArray, format);
QFETCH(QImage::Format, imageFormat);
SKIP_IF_UNSUPPORTED(format);
QCOMPARE(QImageReader::imageFormat(prefix + fileName), format);
QImageReader reader(prefix + fileName);
QCOMPARE(reader.imageFormat(), imageFormat);
}
void tst_QImageReader::blackXPM()
{
QImage image(prefix + QLatin1String("black.xpm"));
QImage image2(prefix + QLatin1String("black.png"));
QCOMPARE(image.pixel(25, 25), qRgb(190, 190, 190));
QCOMPARE(image.pixel(25, 25), image2.pixel(25, 25));
}
void tst_QImageReader::transparentXPM()
{
QImage image(prefix + QLatin1String("nontransparent.xpm"));
QImage image2(prefix + QLatin1String("transparent.xpm"));
QCOMPARE(image.format(), QImage::Format_RGB32);
QCOMPARE(image2.format(), QImage::Format_ARGB32);
}
void tst_QImageReader::multiWordNamedColorXPM()
{
QImage image(prefix + QLatin1String("namedcolors.xpm"));
QCOMPARE(image.pixel(0, 0), qRgb(102, 139, 139)); // pale turquoise 4
QCOMPARE(image.pixel(0, 1), qRgb(250, 250, 210)); // light golden rod yellow
QCOMPARE(image.pixel(0, 2), qRgb(255, 250, 205)); // lemon chiffon
}
void tst_QImageReader::supportedFormats()
{
QList<QByteArray> formats = QImageReader::supportedImageFormats();
QList<QByteArray> sortedFormats = formats;
qSort(sortedFormats);
// check that the list is sorted
QCOMPARE(formats, sortedFormats);
QSet<QByteArray> formatSet;
foreach (QByteArray format, formats)
formatSet << format;
// check that the list does not contain duplicates
QCOMPARE(formatSet.size(), formats.size());
}
void tst_QImageReader::supportedMimeTypes()
{
QList<QByteArray> mimeTypes = QImageReader::supportedMimeTypes();
QList<QByteArray> sortedMimeTypes = mimeTypes;
qSort(sortedMimeTypes);
// check that the list is sorted
QCOMPARE(mimeTypes, sortedMimeTypes);
QSet<QByteArray> mimeTypeSet;
foreach (QByteArray mimeType, mimeTypes)
mimeTypeSet << mimeType;
// check the list as a minimum contains image/bmp
QVERIFY(mimeTypeSet.contains("image/bmp"));
// check that the list does not contain duplicates
QCOMPARE(mimeTypeSet.size(), mimeTypes.size());
}
void tst_QImageReader::setBackgroundColor_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QColor>("color");
QTest::newRow("BMP: colorful") << QString("colorful.bmp") << QColor(Qt::white);
QTest::newRow("BMP: font") << QString("font.bmp") << QColor(Qt::black);
QTest::newRow("BMP: signed char") << QString("crash-signed-char.bmp") << QColor(Qt::red);
QTest::newRow("XPM: marble") << QString("marble.xpm") << QColor(Qt::darkRed);
QTest::newRow("PNG: kollada") << QString("kollada.png") << QColor(Qt::green);
QTest::newRow("PPM: teapot") << QString("teapot.ppm") << QColor(Qt::darkGreen);
QTest::newRow("PPM: runners") << QString("runners.ppm") << QColor(Qt::red);
QTest::newRow("PPM: test") << QString("test.ppm") << QColor(Qt::white);
QTest::newRow("XBM: gnus") << QString("gnus.xbm") << QColor(Qt::blue);
QTest::newRow("JPEG: beavis") << QString("beavis.jpg") << QColor(Qt::darkBlue);
QTest::newRow("GIF: earth") << QString("earth.gif") << QColor(Qt::cyan);
QTest::newRow("GIF: trolltech") << QString("trolltech.gif") << QColor(Qt::magenta);
QTest::newRow("SVG: rect") << QString("rect.svg") << QColor(Qt::darkGreen);
QTest::newRow("SVGZ: rect") << QString("rect.svgz") << QColor(Qt::darkGreen);
}
void tst_QImageReader::setBackgroundColor()
{
QFETCH(QString, fileName);
QFETCH(QColor, color);
QImageReader io("images/" + fileName);
io.setBackgroundColor(color);
if (io.backgroundColor().isValid())
QCOMPARE(io.backgroundColor(), color);
}
void tst_QImageReader::supportsAnimation_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<bool>("success");
QTest::newRow("BMP: colorful") << QString("colorful.bmp") << false;
QTest::newRow("BMP: font") << QString("font.bmp") << false;
QTest::newRow("BMP: signed char") << QString("crash-signed-char.bmp") << false;
QTest::newRow("BMP: test32bfv4") << QString("test32bfv4.bmp") << false;;
QTest::newRow("BMP: test32v5") << QString("test32v5.bmp") << false;
QTest::newRow("XPM: marble") << QString("marble.xpm") << false;
QTest::newRow("PNG: kollada") << QString("kollada.png") << false;
QTest::newRow("PPM: teapot") << QString("teapot.ppm") << false;
QTest::newRow("PPM: runners") << QString("runners.ppm") << false;
QTest::newRow("XBM: gnus") << QString("gnus.xbm") << false;
QTest::newRow("JPEG: beavis") << QString("beavis.jpg") << false;
QTest::newRow("GIF: earth") << QString("earth.gif") << true;
QTest::newRow("GIF: trolltech") << QString("trolltech.gif") << true;
QTest::newRow("SVG: rect") << QString("rect.svg") << false;
QTest::newRow("SVGZ: rect") << QString("rect.svgz") << false;
}
void tst_QImageReader::supportsAnimation()
{
QFETCH(QString, fileName);
QFETCH(bool, success);
QImageReader io(prefix + fileName);
QCOMPARE(io.supportsAnimation(), success);
}
void tst_QImageReader::sizeBeforeRead_data()
{
imageFormat_data();
}
void tst_QImageReader::sizeBeforeRead()
{
QFETCH(QString, fileName);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
QImageReader reader(prefix + fileName);
QVERIFY(reader.canRead());
QSize size = reader.size();
QVERIFY(reader.canRead());
QImage image = reader.read();
QVERIFY(!image.isNull());
QCOMPARE(size, image.size());
}
void tst_QImageReader::sizeBeforeFormat_data()
{
imageFormat_data();
}
void tst_QImageReader::sizeBeforeFormat()
{
QFETCH(QString, fileName);
QByteArray formatA, formatB;
{
QImageReader reader(prefix + fileName);
formatA = reader.format();
}
{
QImageReader reader(prefix + fileName);
reader.size();
formatB = reader.format();
}
QCOMPARE(formatA, formatB);
}
void tst_QImageReader::imageFormatBeforeRead_data()
{
imageFormat_data();
}
void tst_QImageReader::imageFormatBeforeRead()
{
QFETCH(QString, fileName);
QFETCH(QByteArray, format);
QFETCH(QImage::Format, imageFormat);
SKIP_IF_UNSUPPORTED(format);
QImageReader reader(fileName);
if (reader.supportsOption(QImageIOHandler::ImageFormat)) {
QImage::Format fileFormat = reader.imageFormat();
QCOMPARE(fileFormat, imageFormat);
QSize size = reader.size();
QImage image(size, fileFormat);
QVERIFY(reader.read(&image));
QCOMPARE(image.format(), fileFormat);
}
}
void tst_QImageReader::gifHandlerBugs()
{
SKIP_IF_UNSUPPORTED("gif");
{
QImageReader io(prefix + "trolltech.gif");
QVERIFY(io.loopCount() != 1);
int count=0;
for (; io.canRead(); io.read(), ++count) ;
QVERIFY(count == 34);
}
// Task 95166
{
QImageReader io1(prefix + "bat1.gif");
QImageReader io2(prefix + "bat2.gif");
QVERIFY(io1.canRead());
QVERIFY(io2.canRead());
QImage im1 = io1.read();
QImage im2 = io2.read();
QVERIFY(!im1.isNull());
QVERIFY(!im2.isNull());
QCOMPARE(im1, im2);
}
// Task 9994
{
QImageReader io1(prefix + "noclearcode.gif");
QImageReader io2(prefix + "noclearcode.bmp");
QVERIFY(io1.canRead()); QVERIFY(io2.canRead());
QImage im1 = io1.read(); QImage im2 = io2.read();
QVERIFY(!im1.isNull()); QVERIFY(!im2.isNull());
QCOMPARE(im1.convertToFormat(QImage::Format_ARGB32), im2.convertToFormat(QImage::Format_ARGB32));
}
// Check the undocumented feature.
{
QImageReader io(prefix + "endless-anim.gif");
QVERIFY(io.canRead());
QCOMPARE(io.loopCount(), -1);
}
// Check that pixels with the transparent color are transparent but not zeroed
{
QImageReader io(prefix + "trans.gif");
QVERIFY(io.canRead());
QImage im = io.read();
QCOMPARE(im.pixel(0,0), qRgba(0x3f, 0xff, 0x7f, 0x00));
QCOMPARE(im.pixel(10,10), qRgba(0x3f, 0xff, 0x7f, 0x00));
}
}
void tst_QImageReader::animatedGif()
{
SKIP_IF_UNSUPPORTED("gif");
QImageReader io(":images/qt.gif");
QImage image = io.read();
QVERIFY(!image.isNull());
int i = 0;
while(!image.isNull()){
QString frameName = QString(":images/qt%1.gif").arg(++i);
QCOMPARE(image, QImage(frameName));
image = io.read();
}
}
// http://bugreports.qt-project.org/browse/QTBUG-6696
// Check the count of images in various call orders...
void tst_QImageReader::gifImageCount()
{
SKIP_IF_UNSUPPORTED("gif");
// just read every frame... and see how much we got..
{
QImageReader io(":images/four-frames.gif");
QVERIFY(io.canRead());
QImage blackFrame = io.read();
QVERIFY(io.canRead());
QImage whiteFrame = io.read();
QVERIFY(io.canRead());
QImage greenFrame = io.read();
QVERIFY(io.imageCount() == 4);
QVERIFY(io.canRead());
QImage blueFrame = io.read();
QVERIFY(!io.canRead());
QImage emptyFrame = io.read();
QVERIFY(!io.canRead());
QCOMPARE(blackFrame.pixel(0,0), qRgb(0, 0, 0));
QCOMPARE(blackFrame.size(), QSize(64,64));
QCOMPARE(whiteFrame.pixel(0,0), qRgb(0xff, 0xff, 0xff));
QCOMPARE(whiteFrame.size(), QSize(64,64));
QCOMPARE(greenFrame.pixel(0,0), qRgb(0x0, 0xff, 0x0));
QCOMPARE(greenFrame.size(), QSize(64,64));
QCOMPARE(blueFrame.pixel(0,0), qRgb(0x0, 0x0, 0xff));
QCOMPARE(blueFrame.size(), QSize(64,64));
QVERIFY(emptyFrame.isNull());
}
// Read and get the size
{
QImageReader io(":images/four-frames.gif");
QVERIFY(io.canRead());
QCOMPARE(io.size(), QSize(64,64));
QVERIFY(io.canRead());
QCOMPARE(io.size(), QSize(64,64));
QCOMPARE(io.size(), QSize(64,64));
QVERIFY(io.canRead());
QImage blackFrame = io.read();
QVERIFY(io.canRead());
QCOMPARE(io.size(), QSize(64,64));
QCOMPARE(io.size(), QSize(64,64));
QVERIFY(io.canRead());
QImage whiteFrame = io.read();
QVERIFY(io.canRead());
QCOMPARE(io.size(), QSize(64,64));
QCOMPARE(io.size(), QSize(64,64));
QVERIFY(io.canRead());
QImage greenFrame = io.read();
QVERIFY(io.canRead());
QCOMPARE(io.size(), QSize(64,64));
QCOMPARE(io.size(), QSize(64,64));
QVERIFY(io.canRead());
QImage blueFrame = io.read();
QVERIFY(!io.canRead());
QCOMPARE(io.size(), QSize());
QCOMPARE(io.size(), QSize());
QVERIFY(!io.canRead());
QImage emptyFrame = io.read();
QVERIFY(!io.canRead());
QCOMPARE(blackFrame.pixel(0,0), qRgb(0, 0, 0));
QCOMPARE(blackFrame.size(), QSize(64,64));
QCOMPARE(whiteFrame.pixel(0,0), qRgb(0xff, 0xff, 0xff));
QCOMPARE(whiteFrame.size(), QSize(64,64));
QCOMPARE(greenFrame.pixel(0,0), qRgb(0x0, 0xff, 0x0));
QCOMPARE(greenFrame.size(), QSize(64,64));
QCOMPARE(blueFrame.pixel(0,0), qRgb(0x0, 0x0, 0xff));
QCOMPARE(blueFrame.size(), QSize(64,64));
QVERIFY(emptyFrame.isNull());
}
// Do a Size query as substitute for canRead
{
QImageReader io(":images/four-frames.gif");
QCOMPARE(io.size(), QSize(64,64));
QCOMPARE(io.size(), QSize(64,64));
QImage blackFrame = io.read();
QCOMPARE(io.size(), QSize(64,64));
QCOMPARE(io.size(), QSize(64,64));
QImage whiteFrame = io.read();
QCOMPARE(io.size(), QSize(64,64));
QCOMPARE(io.size(), QSize(64,64));
QImage greenFrame = io.read();
QCOMPARE(io.size(), QSize(64,64));
QCOMPARE(io.size(), QSize(64,64));
QImage blueFrame = io.read();
QCOMPARE(io.size(), QSize());
QVERIFY(!io.canRead());
QImage emptyFrame = io.read();
QVERIFY(!io.canRead());
QCOMPARE(blackFrame.pixel(0,0), qRgb(0, 0, 0));
QCOMPARE(blackFrame.size(), QSize(64,64));
QCOMPARE(whiteFrame.pixel(0,0), qRgb(0xff, 0xff, 0xff));
QCOMPARE(whiteFrame.size(), QSize(64,64));
QCOMPARE(greenFrame.pixel(0,0), qRgb(0x0, 0xff, 0x0));
QCOMPARE(greenFrame.size(), QSize(64,64));
QCOMPARE(blueFrame.pixel(0,0), qRgb(0x0, 0x0, 0xff));
QCOMPARE(blueFrame.size(), QSize(64,64));
QVERIFY(emptyFrame.isNull());
}
{
QImageReader io(":images/trolltech.gif");
QVERIFY(io.imageCount() == 34);
QVERIFY(io.size() == QSize(128,64));
}
}
void tst_QImageReader::gifLoopCount()
{
SKIP_IF_UNSUPPORTED("gif");
{
QImageReader io(":images/qt-gif-anim.gif");
QCOMPARE(io.loopCount(), -1); // infinite loop
}
{
QImageReader io(":images/qt-gif-noanim.gif");
QCOMPARE(io.loopCount(), 0); // no loop
}
}
class Server : public QObject
{
Q_OBJECT
public:
Server(const QByteArray &data) :serverSocket(0)
{
connect(&server, SIGNAL(newConnection()), this, SLOT(acceptNewConnection()));
server.listen();
this->data = data;
}
public slots:
void runTest()
{
connect(&clientSocket, SIGNAL(connected()), this, SLOT(connected()));
clientSocket.connectToHost(QHostAddress::LocalHost, server.serverPort());
}
public:
inline QTcpSocket *socket() const { return serverSocket; }
signals:
void ready();
private slots:
void acceptNewConnection()
{
serverSocket = server.nextPendingConnection();
connect(serverSocket, SIGNAL(error(QAbstractSocket::SocketError)),
this, SLOT(remoteHostClosed()));
}
void connected()
{
clientSocket.write(data);
clientSocket.disconnectFromHost();
}
void remoteHostClosed()
{
emit ready();
}
private:
QTcpServer server;
QTcpSocket clientSocket;
QTcpSocket *serverSocket;
QByteArray data;
};
void tst_QImageReader::readFromDevice_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QByteArray>("format");
QTest::newRow("pbm") << QString("image.pbm") << QByteArray("pbm");
QTest::newRow("pgm") << QString("image.pgm") << QByteArray("pgm");
QTest::newRow("ppm-1") << QString("image.ppm") << QByteArray("ppm");
QTest::newRow("ppm-2") << QString("teapot.ppm") << QByteArray("ppm");
QTest::newRow("ppm-3") << QString("teapot.ppm") << QByteArray("ppm");
QTest::newRow("ppm-4") << QString("runners.ppm") << QByteArray("ppm");
QTest::newRow("jpeg-1") << QString("beavis.jpg") << QByteArray("jpeg");
QTest::newRow("jpeg-2") << QString("YCbCr_cmyk.jpg") << QByteArray("jpeg");
QTest::newRow("jpeg-3") << QString("YCbCr_rgb.jpg") << QByteArray("jpeg");
QTest::newRow("jpeg-4") << QString("qtbug13653-no_eoi.jpg") << QByteArray("jpeg");
QTest::newRow("gif-1") << QString("earth.gif") << QByteArray("gif");
QTest::newRow("gif-2") << QString("trolltech.gif") << QByteArray("gif");
QTest::newRow("xbm") << QString("gnus.xbm") << QByteArray("xbm");
QTest::newRow("xpm") << QString("marble.xpm") << QByteArray("xpm");
QTest::newRow("bmp-1") << QString("colorful.bmp") << QByteArray("bmp");
QTest::newRow("bmp-2") << QString("font.bmp") << QByteArray("bmp");
QTest::newRow("bmp-3") << QString("test32bfv4.bmp") << QByteArray("bmp");
QTest::newRow("bmp-4") << QString("test32v5.bmp") << QByteArray("bmp");
QTest::newRow("png") << QString("kollada.png") << QByteArray("png");
QTest::newRow("svg") << QString("rect.svg") << QByteArray("svg");
QTest::newRow("svgz") << QString("rect.svgz") << QByteArray("svgz");
#if defined QTEST_HAVE_TGA
QTest::newRow("tga") << QString("test-flag.tga") << QByteArray("tga");
#endif
}
static QByteArray msgReadFromDeviceFail(const QString &sourceFileName,
const QByteArray &detectedFormat)
{
QByteArray result = "Failure for '";
result += sourceFileName.toLocal8Bit();
result += "', detected as: '";
result += detectedFormat;
result += '\'';
return result;
}
void tst_QImageReader::readFromDevice()
{
QFETCH(QString, fileName);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
const QString imageFileName = prefix + fileName;
QImage expectedImage(imageFileName, format);
QFile file(imageFileName);
QVERIFY(file.open(QFile::ReadOnly));
QByteArray imageData = file.readAll();
QVERIFY(!imageData.isEmpty());
{
QBuffer buffer;
buffer.setData(imageData);
QVERIFY(buffer.open(QBuffer::ReadOnly));
QImageReader reader(&buffer);
QVERIFY(reader.canRead());
QImage imageReaderImage = reader.read();
QVERIFY2(!imageReaderImage.isNull(), msgReadFromDeviceFail(imageFileName, reader.format()).constData());
QCOMPARE(imageReaderImage, expectedImage);
buffer.seek(0);
QImage image1;
QVERIFY(image1.loadFromData((const uchar *)buffer.data().data(),
buffer.data().size(), format.data()));
QCOMPARE(image1, expectedImage);
QByteArray throughBase64 = QByteArray::fromBase64(imageData.toBase64());
QVERIFY(image1.loadFromData((const uchar *)throughBase64.data(),
throughBase64.size(), format.data()));
QCOMPARE(image1, expectedImage);
}
Server server(imageData);
QEventLoop loop;
connect(&server, SIGNAL(ready()), &loop, SLOT(quit()));
QTimer::singleShot(0, &server, SLOT(runTest()));
QTimer::singleShot(5000, &loop, SLOT(quit()));
loop.exec();
QImageReader reader(server.socket(), format == "xbm" ? "xbm" : "");
if (format == "xbm")
QVERIFY(!reader.canRead());
else
QVERIFY(reader.canRead());
QImage imageReaderImage = reader.read();
QCOMPARE(imageReaderImage, expectedImage);
}
void tst_QImageReader::readFromFileAfterJunk_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QByteArray>("format");
QTest::newRow("pbm") << QString("image.pbm") << QByteArray("pbm");
QTest::newRow("pgm") << QString("image.pgm") << QByteArray("pgm");
QTest::newRow("ppm-1") << QString("image.ppm") << QByteArray("ppm");
QTest::newRow("ppm-2") << QString("teapot.ppm") << QByteArray("ppm");
QTest::newRow("ppm-3") << QString("teapot.ppm") << QByteArray("ppm");
QTest::newRow("ppm-4") << QString("runners.ppm") << QByteArray("ppm");
QTest::newRow("jpeg-1") << QString("beavis.jpg") << QByteArray("jpeg");
QTest::newRow("jpeg-2") << QString("YCbCr_cmyk.jpg") << QByteArray("jpeg");
QTest::newRow("jpeg-3") << QString("YCbCr_rgb.jpg") << QByteArray("jpeg");
QTest::newRow("xbm") << QString("gnus.xbm") << QByteArray("xbm");
QTest::newRow("xpm") << QString("marble.xpm") << QByteArray("xpm");
QTest::newRow("bmp-1") << QString("colorful.bmp") << QByteArray("bmp");
QTest::newRow("bmp-2") << QString("font.bmp") << QByteArray("bmp");
QTest::newRow("bmp-3") << QString("test32bfv4.bmp") << QByteArray("bmp");
QTest::newRow("bmp-4") << QString("test32v5.bmp") << QByteArray("bmp");
QTest::newRow("png") << QString("kollada.png") << QByteArray("png");
QTest::newRow("svg") << QString("rect.svg") << QByteArray("svg");
QTest::newRow("svgz") << QString("rect.svgz") << QByteArray("svgz");
}
void tst_QImageReader::readFromFileAfterJunk()
{
QFETCH(QString, fileName);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
QFile::remove("junk");
QFile junkFile("junk");
QVERIFY(junkFile.open(QFile::WriteOnly));
QFile imageFile(prefix + fileName);
QVERIFY(imageFile.open(QFile::ReadOnly));
QByteArray imageData = imageFile.readAll();
QVERIFY(!imageData.isNull());
int iterations = 3;
if (format == "ppm" || format == "pbm" || format == "pgm" || format == "svg" || format == "svgz")
iterations = 1;
if (!QImageWriter::supportedImageFormats().contains(format)) {
for (int i = 0; i < iterations; ++i) {
junkFile.write("deadbeef", 9);
QCOMPARE(junkFile.write(imageData), qint64(imageData.size()));
}
} else {
for (int i = 0; i < iterations; ++i) {
QImageWriter writer(&junkFile, format);
junkFile.write("deadbeef", 9);
QVERIFY(writer.write(QImage(prefix + fileName)));
}
}
junkFile.close();
junkFile.open(QFile::ReadOnly);
for (int i = 0; i < iterations; ++i) {
QByteArray ole = junkFile.read(9);
junkFile.ungetChar(ole[ole.size() - 1]);
char c;
junkFile.getChar(&c);
QImageReader reader(&junkFile);
QVERIFY(reader.canRead());
QVERIFY(!reader.read().isNull());
}
}
void tst_QImageReader::devicePosition_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QByteArray>("format");
QTest::newRow("pbm") << QString("image.pbm") << QByteArray("pbm");
QTest::newRow("pgm") << QString("image.pgm") << QByteArray("pgm");
QTest::newRow("ppm-1") << QString("image.ppm") << QByteArray("ppm");
QTest::newRow("jpeg-1") << QString("beavis.jpg") << QByteArray("jpeg");
QTest::newRow("jpeg-2") << QString("YCbCr_cmyk.jpg") << QByteArray("jpeg");
QTest::newRow("jpeg-3") << QString("YCbCr_rgb.jpg") << QByteArray("jpeg");
QTest::newRow("gif-1") << QString("earth.gif") << QByteArray("gif");
QTest::newRow("xbm") << QString("gnus.xbm") << QByteArray("xbm");
QTest::newRow("xpm") << QString("marble.xpm") << QByteArray("xpm");
QTest::newRow("bmp-1") << QString("colorful.bmp") << QByteArray("bmp");
QTest::newRow("bmp-2") << QString("font.bmp") << QByteArray("bmp");
QTest::newRow("bmp-3") << QString("test32bfv4.bmp") << QByteArray("bmp");
QTest::newRow("bmp-4") << QString("test32v5.bmp") << QByteArray("bmp");
QTest::newRow("png") << QString("kollada.png") << QByteArray("png");
QTest::newRow("svg") << QString("rect.svg") << QByteArray("svg");
QTest::newRow("svgz") << QString("rect.svgz") << QByteArray("svgz");
}
void tst_QImageReader::devicePosition()
{
QFETCH(QString, fileName);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
QImage expected(prefix + fileName);
QVERIFY(!expected.isNull());
QFile imageFile(prefix + fileName);
QVERIFY(imageFile.open(QFile::ReadOnly));
QByteArray imageData = imageFile.readAll();
QVERIFY(!imageData.isNull());
int imageDataSize = imageData.size();
const char *preStr = "prebeef\n";
int preLen = qstrlen(preStr);
imageData.prepend(preStr);
if (format != "svg" && format != "svgz") // Doesn't handle trailing data
imageData.append("\npostbeef");
QBuffer buf(&imageData);
buf.open(QIODevice::ReadOnly);
buf.seek(preLen);
QImageReader reader(&buf, format);
QCOMPARE(expected, reader.read());
if (format != "ppm" &&
format != "pgm" &&
format != "pbm" &&
format != "gif") // Known not to work
QCOMPARE(buf.pos(), qint64(preLen+imageDataSize));
}
void tst_QImageReader::readFromResources_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QByteArray>("format");
QTest::addColumn<QSize>("size");
QTest::addColumn<QString>("message");
QTest::newRow("corrupt.bmp") << QString("corrupt.bmp")
<< QByteArray("bmp") << QSize(0, 0)
<< QString("");
QTest::newRow("negativeheight.bmp") << QString("negativeheight.bmp")
<< QByteArray("bmp") << QSize(127, 64)
<< QString("");
QTest::newRow("font.bmp") << QString("font.bmp")
<< QByteArray("bmp") << QSize(240, 8)
<< QString("");
QTest::newRow("noclearcode.bmp") << QString("noclearcode.bmp")
<< QByteArray("bmp") << QSize(29, 18)
<< QString("");
QTest::newRow("colorful.bmp") << QString("colorful.bmp")
<< QByteArray("bmp") << QSize(320, 200)
<< QString("");
QTest::newRow("16bpp.bmp") << QString("16bpp.bmp")
<< QByteArray("bmp") << QSize(320, 240)
<< QString("");
QTest::newRow("crash-signed-char.bmp") << QString("crash-signed-char.bmp")
<< QByteArray("bmp") << QSize(360, 280)
<< QString("");
QTest::newRow("4bpp-rle.bmp") << QString("4bpp-rle.bmp")
<< QByteArray("bmp") << QSize(640, 480)
<< QString("");
QTest::newRow("test32bfv4.bmp") << QString("test32bfv4.bmp")
<< QByteArray("bmp") << QSize(373, 156)
<< QString("");
QTest::newRow("test32v5.bmp") << QString("test32v5.bmp")
<< QByteArray("bmp") << QSize(373, 156)
<< QString("");
QTest::newRow("corrupt.gif") << QString("corrupt.gif")
<< QByteArray("gif") << QSize(0, 0)
<< QString("");
QTest::newRow("trolltech.gif") << QString("trolltech.gif")
<< QByteArray("gif") << QSize(128, 64)
<< QString("");
QTest::newRow("noclearcode.gif") << QString("noclearcode.gif")
<< QByteArray("gif") << QSize(29, 18)
<< QString("");
QTest::newRow("earth.gif") << QString("earth.gif")
<< QByteArray("gif") << QSize(320, 200)
<< QString("");
QTest::newRow("bat1.gif") << QString("bat1.gif")
<< QByteArray("gif") << QSize(32, 32)
<< QString("");
QTest::newRow("bat2.gif") << QString("bat2.gif")
<< QByteArray("gif") << QSize(32, 32)
<< QString("");
QTest::newRow("corrupt.jpg") << QString("corrupt.jpg")
<< QByteArray("jpg") << QSize(0, 0)
<< QString("JPEG datastream contains no image");
QTest::newRow("beavis.jpg") << QString("beavis.jpg")
<< QByteArray("jpg") << QSize(350, 350)
<< QString("");
QTest::newRow("YCbCr_cmyk.jpg") << QString("YCbCr_cmyk.jpg")
<< QByteArray("jpg") << QSize(75, 50)
<< QString("");
QTest::newRow("YCbCr_rgb.jpg") << QString("YCbCr_rgb.jpg")
<< QByteArray("jpg") << QSize(75, 50)
<< QString("");
QTest::newRow("qtbug13653-no_eoi.jpg") << QString("qtbug13653-no_eoi.jpg")
<< QByteArray("jpg") << QSize(240, 180)
<< QString("");
QTest::newRow("rect.svg") << QString("rect.svg")
<< QByteArray("svg") << QSize(105, 137)
<< QString("");
QTest::newRow("rect.svgz") << QString("rect.svgz")
<< QByteArray("svgz") << QSize(105, 137)
<< QString("");
QTest::newRow("corrupt.svg") << QString("corrupt.svg")
<< QByteArray("svg") << QSize(0, 0)
<< QString("");
QTest::newRow("corrupt.svgz") << QString("corrupt.svgz")
<< QByteArray("svgz") << QSize(0, 0)
<< QString("");
QTest::newRow("image.pbm") << QString("image.pbm")
<< QByteArray("pbm") << QSize(16, 6)
<< QString("");
QTest::newRow("image.pgm") << QString("image.pgm")
<< QByteArray("pgm") << QSize(24, 7)
<< QString("");
QTest::newRow("corrupt.png") << QString("corrupt.png")
<< QByteArray("png") << QSize(0, 0)
<< QString("");
QTest::newRow("away.png") << QString("away.png")
<< QByteArray("png") << QSize(16, 16)
<< QString("");
QTest::newRow("image.png") << QString("image.png")
<< QByteArray("png") << QSize(22, 22)
<< QString("");
QTest::newRow("kollada.png") << QString("kollada.png")
<< QByteArray("png") << QSize(436, 160)
<< QString("");
QTest::newRow("black.png") << QString("black.png")
<< QByteArray("png") << QSize(48, 48)
<< QString("");
QTest::newRow("YCbCr_cmyk.png") << QString("YCbCr_cmyk.png")
<< QByteArray("png") << QSize(75, 50)
<< QString("");
QTest::newRow("teapot.ppm") << QString("teapot.ppm")
<< QByteArray("ppm") << QSize(256, 256)
<< QString("");
QTest::newRow("image.ppm") << QString("image.ppm")
<< QByteArray("ppm") << QSize(4, 4)
<< QString("");
QTest::newRow("runners.ppm") << QString("runners.ppm")
<< QByteArray("ppm") << QSize(400, 400)
<< QString("");
QTest::newRow("test.ppm") << QString("test.ppm")
<< QByteArray("ppm") << QSize(10, 10)
<< QString("");
QTest::newRow("gnus.xbm") << QString("gnus.xbm")
<< QByteArray("xbm") << QSize(271, 273)
<< QString("");
QTest::newRow("corrupt-colors.xpm") << QString("corrupt-colors.xpm")
<< QByteArray("xpm") << QSize(0, 0)
<< QString("QImage: XPM color specification is missing: bla9an.n#x");
QTest::newRow("corrupt-pixels.xpm") << QString("corrupt-pixels.xpm")
<< QByteArray("xpm") << QSize(0, 0)
<< QString("QImage: XPM pixels missing on image line 3");
QTest::newRow("corrupt-pixel-count.xpm") << QString("corrupt-pixel-count.xpm")
<< QByteArray("xpm") << QSize(0, 0)
<< QString("");
QTest::newRow("marble.xpm") << QString("marble.xpm")
<< QByteArray("xpm") << QSize(240, 240)
<< QString("");
QTest::newRow("test.xpm") << QString("test.xpm")
<< QByteArray("xpm") << QSize(256, 256)
<< QString("");
QTest::newRow("black.xpm") << QString("black.xpm")
<< QByteArray("xpm") << QSize(48, 48)
<< QString("");
QTest::newRow("namedcolors.xpm") << QString("namedcolors.xpm")
<< QByteArray("xpm") << QSize(8, 8)
<< QString("");
QTest::newRow("nontransparent.xpm") << QString("nontransparent.xpm")
<< QByteArray("xpm") << QSize(8, 8)
<< QString("");
QTest::newRow("transparent.xpm") << QString("transparent.xpm")
<< QByteArray("xpm") << QSize(8, 8)
<< QString("");
}
void tst_QImageReader::readFromResources()
{
QFETCH(QString, fileName);
QFETCH(QByteArray, format);
QFETCH(QSize, size);
QFETCH(QString, message);
SKIP_IF_UNSUPPORTED(format);
for (int i = 0; i < 2; ++i) {
QString file = i ? QString(QStringLiteral(":/images/") + fileName) : QString(prefix + fileName);
{
// suppress warnings if we expect them
if (!message.isEmpty()) {
for (int j = 0; j < 5; ++j)
QTest::ignoreMessage(QtWarningMsg, message.toLatin1());
}
// 1) full filename, no format
QImageReader reader(file);
QImage image = reader.read();
if (size.isNull())
QVERIFY(image.isNull());
else
QVERIFY(!image.isNull());
QCOMPARE(image.size(), size);
}
{
// 2) full filename, with format
QImageReader reader(file, format);
QImage image = reader.read();
if (size.isNull())
QVERIFY(image.isNull());
else
QVERIFY(!image.isNull());
QCOMPARE(image.size(), size);
}
{
// 3) full filename, with uppercase format
QImageReader reader(file, format.toUpper());
QImage image = reader.read();
if (size.isNull())
QVERIFY(image.isNull());
else
QVERIFY(!image.isNull());
QCOMPARE(image.size(), size);
}
{
// 4) chopped filename, with format
QImageReader reader(file.left(file.lastIndexOf(QLatin1Char('.'))), format);
QImage image = reader.read();
if (size.isNull())
QVERIFY(image.isNull());
else
QVERIFY(!image.isNull());
QCOMPARE(image.size(), size);
}
{
// 5) chopped filename, with uppercase format
QImageReader reader(file.left(file.lastIndexOf(QLatin1Char('.'))), format.toUpper());
QImage image = reader.read();
if (size.isNull())
QVERIFY(image.isNull());
else
QVERIFY(!image.isNull());
QCOMPARE(image.size(), size);
}
}
// Check that the results are identical
if (!message.isEmpty()) {
QTest::ignoreMessage(QtWarningMsg, message.toLatin1());
QTest::ignoreMessage(QtWarningMsg, message.toLatin1());
}
QCOMPARE(QImageReader(prefix + fileName).read(), QImageReader(":/images/" + fileName).read());
}
void tst_QImageReader::readCorruptImage_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<bool>("shouldFail");
QTest::addColumn<QString>("message");
QTest::addColumn<QByteArray>("format");
QTest::newRow("corrupt jpeg") << QString("corrupt.jpg") << true
<< QString("JPEG datastream contains no image")
<< QByteArray("jpeg");
QTest::newRow("corrupt gif") << QString("corrupt.gif") << true << QString("") << QByteArray("gif");
QTest::newRow("corrupt png") << QString("corrupt.png") << true << QString("") << QByteArray("png");
QTest::newRow("corrupt bmp") << QString("corrupt.bmp") << true << QString("") << QByteArray("bmp");
QTest::newRow("corrupt xpm (colors)") << QString("corrupt-colors.xpm") << true
<< QString("QImage: XPM color specification is missing: bla9an.n#x")
<< QByteArray("xpm");
QTest::newRow("corrupt xpm (pixels)") << QString("corrupt-pixels.xpm") << true
<< QString("QImage: XPM pixels missing on image line 3")
<< QByteArray("xpm");
QTest::newRow("corrupt xbm") << QString("corrupt.xbm") << false << QString("") << QByteArray("xbm");
QTest::newRow("corrupt svg") << QString("corrupt.svg") << true << QString("") << QByteArray("svg");
QTest::newRow("corrupt svgz") << QString("corrupt.svgz") << true << QString("") << QByteArray("svgz");
}
void tst_QImageReader::readCorruptImage()
{
QFETCH(QString, fileName);
QFETCH(bool, shouldFail);
QFETCH(QString, message);
QFETCH(QByteArray, format);
SKIP_IF_UNSUPPORTED(format);
if (!message.isEmpty())
QTest::ignoreMessage(QtWarningMsg, message.toLatin1());
QImageReader reader(prefix + fileName);
QVERIFY(reader.canRead());
QCOMPARE(reader.read().isNull(), shouldFail);
}
void tst_QImageReader::readCorruptBmp()
{
QCOMPARE(QImage(prefix + "tst7.bmp").convertToFormat(QImage::Format_ARGB32_Premultiplied), QImage(prefix + "tst7.png").convertToFormat(QImage::Format_ARGB32_Premultiplied));
}
void tst_QImageReader::supportsOption_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QIntList>("options");
QTest::newRow("png") << QString("black.png")
<< (QIntList() << QImageIOHandler::Gamma
<< QImageIOHandler::Description
<< QImageIOHandler::Quality
<< QImageIOHandler::Size
<< QImageIOHandler::ScaledSize);
}
void tst_QImageReader::supportsOption()
{
QFETCH(QString, fileName);
QFETCH(QIntList, options);
QSet<QImageIOHandler::ImageOption> allOptions;
allOptions << QImageIOHandler::Size
<< QImageIOHandler::ClipRect
<< QImageIOHandler::Description
<< QImageIOHandler::ScaledClipRect
<< QImageIOHandler::ScaledSize
<< QImageIOHandler::CompressionRatio
<< QImageIOHandler::Gamma
<< QImageIOHandler::Quality
<< QImageIOHandler::Name
<< QImageIOHandler::SubType
<< QImageIOHandler::IncrementalReading
<< QImageIOHandler::Endianness
<< QImageIOHandler::Animation
<< QImageIOHandler::BackgroundColor;
QImageReader reader(prefix + fileName);
for (int i = 0; i < options.size(); ++i) {
QVERIFY(reader.supportsOption(QImageIOHandler::ImageOption(options.at(i))));
allOptions.remove(QImageIOHandler::ImageOption(options.at(i)));
}
foreach (QImageIOHandler::ImageOption option, allOptions)
QVERIFY(!reader.supportsOption(option));
}
void tst_QImageReader::autoDetectImageFormat()
{
// Assume PNG is supported :-)
{
// Disables file name extension probing
QImageReader reader(prefix + "kollada");
reader.setAutoDetectImageFormat(false);
QVERIFY(!reader.canRead());
QVERIFY(reader.read().isNull());
reader.setAutoDetectImageFormat(true);
QVERIFY(reader.canRead());
QVERIFY(!reader.read().isNull());
}
{
// Disables detection based on suffix
QImageReader reader(prefix + "kollada.png");
reader.setAutoDetectImageFormat(false);
QVERIFY(!reader.canRead());
QVERIFY(reader.read().isNull());
reader.setAutoDetectImageFormat(true);
QVERIFY(reader.canRead());
QVERIFY(!reader.read().isNull());
}
{
// Disables detection based on content
QImageReader reader(prefix + "kollada-noext");
reader.setAutoDetectImageFormat(false);
QVERIFY(!reader.canRead());
QVERIFY(reader.read().isNull());
reader.setAutoDetectImageFormat(true);
QVERIFY(reader.canRead());
QVERIFY(!reader.read().isNull());
}
if (QImageReader::supportedImageFormats().contains("jpeg")) {
QImageReader io(prefix + "YCbCr_rgb.jpg");
io.setAutoDetectImageFormat(false);
// This should fail since no format string is given
QImage image;
QVERIFY(!io.read(&image));
}
if (QImageReader::supportedImageFormats().contains("jpeg")) {
QImageReader io(prefix + "YCbCr_rgb.jpg", "jpg");
io.setAutoDetectImageFormat(false);
QImage image;
QVERIFY(io.read(&image));
}
{
QImageReader io(prefix + "tst7.png");
io.setAutoDetectImageFormat(false);
// This should fail since no format string is given
QImage image;
QVERIFY(!io.read(&image));
}
{
QImageReader io(prefix + "tst7.png", "png");
io.setAutoDetectImageFormat(false);
QImage image;
QVERIFY(io.read(&image));
}
}
void tst_QImageReader::fileNameProbing()
{
QString name("doesnotexist.png");
QImageReader r;
r.setFileName(name); // non-existing / non-readable file
QCOMPARE(r.fileName(), name);
r.size();
QCOMPARE(r.fileName(), name);
r.read();
QCOMPARE(r.fileName(), name);
}
void tst_QImageReader::pixelCompareWithBaseline_data()
{
QTest::addColumn<QString>("fileName");
QTest::newRow("floppy (16px,32px - 16 colors)") << "35floppy.ico";
QTest::newRow("semitransparent") << "semitransparent.ico";
QTest::newRow("slightlybrokenBMPHeader") << "kde_favicon.ico";
QTest::newRow("sightlybrokenIconHeader") << "connect.ico";
}
void tst_QImageReader::pixelCompareWithBaseline()
{
QFETCH(QString, fileName);
static int enteredCount = 0; // Used for better error diagnostics if something fails. We
static int loadFailCount = 0; // don't know if the reason load() fails is that the plugin
// does not exist or because of a bug in the plugin. But if at
// least one file succeeded we know that the plugin was built.
// The other failures are then real failures.
QImage icoImg;
const QString inputFileName(QString::fromLatin1("images/%1").arg(fileName));
QFileInfo fi(inputFileName);
++enteredCount;
// might fail if the plugin does not exist, which is ok.
if (icoImg.load(inputFileName)) {
icoImg = icoImg.convertToFormat(QImage::Format_ARGB32_Premultiplied);
const QString baselineFileName(QString::fromLatin1("baseline/%1.png").arg(fi.baseName()));
#if 0
icoImg.save(baselineFileName);
#else
QImage baseImg;
QVERIFY(baseImg.load(baselineFileName));
baseImg = baseImg.convertToFormat(QImage::Format_ARGB32_Premultiplied);
QCOMPARE(int(baseImg.format()), int(icoImg.format()));
QCOMPARE(baseImg, icoImg);
#endif
} else {
++loadFailCount;
if (enteredCount != loadFailCount) {
QFAIL("Plugin is built, but some did not load properly");
} else {
qWarning("loading failed, check if ico plugin is built");
}
}
}
void tst_QImageReader::testIgnoresFormatAndExtension_data()
{
QTest::addColumn<QString>("name");
QTest::addColumn<QString>("extension");
QTest::addColumn<QString>("expected");
QTest::newRow("black.png") << "black" << "png" << "png";
QTest::newRow("black.xpm") << "black" << "xpm" << "xpm";
QTest::newRow("colorful.bmp") << "colorful" << "bmp" << "bmp";
QTest::newRow("image.ppm") << "image" << "ppm" << "ppm";
QTest::newRow("image.pbm") << "image" << "pbm" << "pbm";
QTest::newRow("image.pgm") << "image" << "pgm" << "pgm";
QTest::newRow("bat1.gif") << "bat1" << "gif" << "gif";
QTest::newRow("beavis.jpg") << "beavis" << "jpg" << "jpeg";
QTest::newRow("rect.svg") << "rect" << "svg" << "svg";
QTest::newRow("rect.svgz") << "rect" << "svgz" << "svgz";
}
static QByteArray msgIgnoreFormatAndExtensionFail(const QString &sourceFileName,
const QString &targetFileName,
const QString &detectedFormat)
{
QByteArray result = "Failure for '";
result += sourceFileName.toLocal8Bit();
result += "' as '";
result += targetFileName;
result += "', detected as: '";
result += detectedFormat.toLocal8Bit();
result += '\'';
return result;
}
void tst_QImageReader::testIgnoresFormatAndExtension()
{
QFETCH(QString, name);
QFETCH(QString, extension);
QFETCH(QString, expected);
SKIP_IF_UNSUPPORTED(expected.toLatin1());
QList<QByteArray> formats = QImageReader::supportedImageFormats();
QString fileNameBase = prefix + name + QLatin1Char('.');
QString tempPath = m_temporaryDir.path();
if (!tempPath.endsWith(QLatin1Char('/')))
tempPath += QLatin1Char('/');
foreach (const QByteArray &f, formats) {
if (f == extension)
continue;
QFile tmp(tempPath + name + QLatin1Char('_') + expected + QLatin1Char('.') + f);
const QString sourceFileName = fileNameBase + extension;
const QString tempFileName = QFileInfo(tmp).absoluteFilePath();
QVERIFY(QFile::copy(sourceFileName, tempFileName));
QString format;
QImage image;
{
// image reader needs to be scoped for the remove() to work..
QImageReader r;
r.setFileName(tempFileName);
r.setDecideFormatFromContent(true);
format = r.format();
r.read(&image);
}
tmp.remove();
QVERIFY2(!image.isNull(), msgIgnoreFormatAndExtensionFail(sourceFileName, tempFileName, format).constData());
QCOMPARE(format, expected);
}
}
void tst_QImageReader::saveFormat_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::newRow("Format_Mono") << QImage::Format_Mono;
QTest::newRow("Format_MonoLSB") << QImage::Format_MonoLSB;
QTest::newRow("Format_Indexed8") << QImage::Format_Indexed8;
QTest::newRow("Format_RGB32") << QImage::Format_RGB32;
QTest::newRow("Format_ARGB32") << QImage::Format_ARGB32;
QTest::newRow("Format_ARGB32_Premultiplied") << QImage::Format_ARGB32_Premultiplied;
QTest::newRow("Format_RGB16") << QImage::Format_RGB16;
QTest::newRow("Format_ARGB8565_Premultiplied") << QImage::Format_ARGB8565_Premultiplied;
QTest::newRow("Format_RGB666") << QImage::Format_RGB666;
QTest::newRow("Format_ARGB6666_Premultiplied") << QImage::Format_ARGB6666_Premultiplied;
QTest::newRow("Format_RGB555") << QImage::Format_RGB555;
QTest::newRow("Format_ARGB8555_Premultiplied") << QImage::Format_ARGB8555_Premultiplied;
QTest::newRow("Format_RGB888") << QImage::Format_RGB888;
QTest::newRow("Format_RGB444") << QImage::Format_RGB444;
QTest::newRow("Format_ARGB4444_Premultiplied") << QImage::Format_ARGB4444_Premultiplied;
}
void tst_QImageReader::saveFormat()
{
QFETCH(QImage::Format, format);
QImage orig(":/images/kollada.png");
QImage converted = orig.convertToFormat(format);
QBuffer buf;
buf.open(QIODevice::WriteOnly);
QVERIFY(converted.save(&buf, "png"));
buf.close();
QImage stored = QImage::fromData(buf.buffer(), "png");
stored = stored.convertToFormat(QImage::Format_ARGB32);
converted = converted.convertToFormat(QImage::Format_ARGB32);
QCOMPARE(stored, converted);
}
void tst_QImageReader::readText_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QString>("key");
QTest::addColumn<QString>("text");
QTest::newRow("png, tEXt before img") << "txts.png" << "Title" << "PNG";
QTest::newRow("png, zTXt before img") << "txts.png" << "Comment" << "Some compressed text.";
QTest::newRow("png, tEXt after img") << "txts.png" << "Disclaimer" << "For testing only.";
QTest::newRow("png, zTXt after img") << "txts.png" << "Description" << "Rendered by Persistence of Vision (tm) Ray Tracer";
QTest::newRow("jpg, JPEG_COM Title") << "txts.jpg" << "Title" << "JPG";
QTest::newRow("jpg, JPEG_COM Comment") << "txts.jpg" << "Comment" << "Some non-compressed text.";
QTest::newRow("jpg, JPEG_COM Disclaimer") << "txts.jpg" << "Disclaimer" << "For testing only.";
QTest::newRow("jpg, JPEG_COM Description") << "txts.jpg" << "Description" << "Rendered by Persistence of Vision (tm) Ray Tracer";
}
void tst_QImageReader::readText()
{
QFETCH(QString, fileName);
QFETCH(QString, key);
QFETCH(QString, text);
QImage img(prefix + fileName);
QVERIFY(img.textKeys().contains(key));
QCOMPARE(img.text(key), text);
}
void tst_QImageReader::preserveTexts_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<QString>("text");
QString latin1set;
for (int c = 0x20; c <= 0x7e; c++)
latin1set.append(QLatin1Char(c));
for (int c = 0xa0; c <= 0xff; c++)
latin1set.append(QLatin1Char(c));
QStringList fileNames;
fileNames << QLatin1String(":/images/kollada.png")
<< QLatin1String(":/images/txts.jpg");
foreach (const QString &fileName, fileNames) {
QTest::newRow("Simple") << fileName << "simpletext";
QTest::newRow("Whitespace") << fileName << " A text with whitespace ";
QTest::newRow("Newline") << fileName << "A text\nwith newlines\n";
QTest::newRow("Double newlines") << fileName << "A text\n\nwith double newlines\n\n";
QTest::newRow("Long") << fileName << QString("A rather long text, at least after many repetitions. ").repeated(100);
QTest::newRow("All Latin1 chars") << fileName << latin1set;
#if 0
// Depends on iTXt support in libpng
QTest::newRow("Multibyte string") << fileName << QString::fromUtf8("\341\233\222\341\233\226\341\232\251\341\232\271\341\232\242\341\233\232\341\232\240");
#endif
}
}
void tst_QImageReader::preserveTexts()
{
QFETCH(QString, fileName);
QByteArray format = fileName.right(3).toLatin1();
QFETCH(QString, text);
QString key("testkey");
QString key2("testkey2");
QString text2("Some other text.");
QString key3("testkey3");
QString text3("Some more other text.");
QImage img(fileName);
img.setText(key, text);
img.setText(key2, text2);
QBuffer buf;
buf.open(QIODevice::WriteOnly);
QVERIFY(img.save(&buf, format.constData()));
buf.close();
QImage stored = QImage::fromData(buf.buffer(), format.constData());
QCOMPARE(stored.text(key), text);
QCOMPARE(stored.text(key2), text2);
QImage img2(fileName);
img2.setText(key3, text3);
QBuffer buf2;
QImageWriter w(&buf2, format);
w.setText(key, text);
w.setText(key2, text2);
QVERIFY(w.write(img2));
buf2.close();
QImageReader r(&buf2, format);
QCOMPARE(r.text(key), text.simplified());
QCOMPARE(r.text(key2), text2.simplified());
QCOMPARE(r.text(key3), text3.simplified());
}
QTEST_MAIN(tst_QImageReader)
#include "tst_qimagereader.moc"