File indexing completed on 2025-03-23 12:43:50

 /*
     SPDX-FileCopyrightText: 2014 Alex Merry <alex.merry@kdemail.net>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 
 #include <stdio.h>
 
 #include <QBuffer>
 #include <QFile>
 #include <QFileInfo>
 #include <QImage>
 #include <QImageReader>
 #include <QImageWriter>
 #include <QTest>
 #include <QUuid>
 
 Q_DECLARE_METATYPE(QImage::Format)
 
 class PicTests : public QObject
 {
     Q_OBJECT
 
 private:
     void common_data()
     {
         QTest::addColumn<QString>("picfile");
         QTest::addColumn<QString>("pngfile");
         QTest::addColumn<QString>("comment");
         // whether the pic file has/should have an alpha channel
         QTest::addColumn<bool>("alpha");
         // the format to convert the png file to before writing
         // or comparing to the read image; this can be used to
         // induce loss of data (eg: make the image monochrome)
         QTest::addColumn<QImage::Format>("pngformat");
         QTest::addColumn<bool>("compress");
 
         QTest::newRow("4x4 no alpha RLE") << QFINDTESTDATA("pic/4x4-simple-color.pic") << QFINDTESTDATA("pic/4x4-simple-color.png") << QString() << false
                                           << QImage::Format_RGB32 << true;
 
         QTest::newRow("4x4 no alpha raw") << QFINDTESTDATA("pic/4x4-simple-color-uncompressed.pic") << QFINDTESTDATA("pic/4x4-simple-color.png") << QString()
                                           << false << QImage::Format_RGB32 << false;
 
         QTest::newRow("Short comment") << QFINDTESTDATA("pic/short-comment.pic") << QFINDTESTDATA("pic/4x4-simple-color.png")
                                        << QStringLiteral("Test comment value") << false << QImage::Format_RGB32 << true;
 
         QTest::newRow("Long comment") << QFINDTESTDATA("pic/long-comment.pic") << QFINDTESTDATA("pic/4x4-simple-color.png")
                                       << QStringLiteral("Test comment value that goes right up to the end of the comment field and has no") << false
                                       << QImage::Format_RGB32 << true;
 
         QTest::newRow("Long run-lengths") << QFINDTESTDATA("pic/long-runs.pic") << QFINDTESTDATA("pic/long-runs.png") << QString() << false
                                           << QImage::Format_RGB32 << true;
 
         QTest::newRow("4x4 with alpha RLE") << QFINDTESTDATA("pic/4x4-alpha.pic") << QFINDTESTDATA("pic/4x4-alpha.png") << QString() << true
                                             << QImage::Format_ARGB32 << true;
 
         QTest::newRow("4x4 with alpha raw") << QFINDTESTDATA("pic/4x4-alpha-uncompressed.pic") << QFINDTESTDATA("pic/4x4-alpha.png") << QString() << true
                                             << QImage::Format_ARGB32 << false;
     }
 
 private Q_SLOTS:
     void initTestCase()
     {
         QCoreApplication::addLibraryPath(QStringLiteral(PLUGIN_DIR));
     }
 
     void testWrite_data()
     {
         common_data();
 
         // NB: 4x4-simple-color only uses solid red, blue, green and white,
         //     so there is no actual data loss in converting to RGB16.
         //     This just tests that the pic plugin can deal with different
         //     input formats.
         QTest::newRow("altered format") << QFINDTESTDATA("pic/4x4-simple-color.pic") << QFINDTESTDATA("pic/4x4-simple-color.png") << QString() << false
                                         << QImage::Format_RGB16 << true;
     }
 
     void testRead_data()
     {
         common_data();
 
         // TODO: test reading files with unusual channel setups
         //       (eg: one channel for each component)
     }
 
     void testWrite()
     {
         QFETCH(QString, picfile);
         QFETCH(QString, pngfile);
         QFETCH(QString, comment);
         QFETCH(QImage::Format, pngformat);
         QFETCH(bool, compress);
 
         QImageReader pngReader(pngfile, "png");
         QImage pngImage;
         QVERIFY2(pngReader.read(&pngImage), qPrintable(pngReader.errorString()));
         pngImage = pngImage.convertToFormat(pngformat);
 
         QFile expFile(picfile);
         QVERIFY2(expFile.open(QIODevice::ReadOnly), qPrintable(expFile.errorString()));
         QByteArray expData = expFile.readAll();
 
         QByteArray picData;
         QBuffer buffer(&picData);
         QImageWriter imgWriter(&buffer, "pic");
         imgWriter.setText(QStringLiteral("Description"), comment);
         imgWriter.setCompression(compress);
         imgWriter.write(pngImage);
 
         if (expData != picData) {
             QString fileNameBase = QUuid::createUuid().toString().remove(QLatin1Char('{')).remove(QLatin1Char('}'));
             QFile dumpFile(fileNameBase + QStringLiteral(".pic"));
             QVERIFY2(dumpFile.open(QIODevice::WriteOnly), qPrintable(dumpFile.errorString()));
             dumpFile.write(picData);
             QString msg =
                 QStringLiteral("Written data (") + dumpFile.fileName() + QStringLiteral(") differed from expected data (") + picfile + QLatin1Char(')');
             QFAIL(qPrintable(msg));
         }
     }
 
     void testRead()
     {
         QFETCH(QString, picfile);
         QFETCH(QString, pngfile);
         QFETCH(bool, alpha);
         QFETCH(QImage::Format, pngformat);
 
         QImageReader inputReader(picfile, "pic");
         QImageReader expReader(pngfile, "png");
 
         QImage inputImage;
         QImage expImage;
 
         QVERIFY2(expReader.read(&expImage), qPrintable(expReader.errorString()));
         QVERIFY2(inputReader.read(&inputImage), qPrintable(inputReader.errorString()));
 
         QCOMPARE(inputImage.width(), expImage.width());
         QCOMPARE(inputImage.height(), expImage.height());
         QCOMPARE(inputImage.hasAlphaChannel(), alpha);
         QCOMPARE(inputImage.format(), alpha ? QImage::Format_ARGB32 : QImage::Format_RGB32);
 
         expImage = expImage.convertToFormat(pngformat);
         expImage = expImage.convertToFormat(alpha ? QImage::Format_ARGB32 : QImage::Format_RGB32);
         if (inputImage != expImage) {
             QString fileNameBase = QUuid::createUuid().toString().remove(QLatin1Char('{')).remove(QLatin1Char('}'));
             QFile picDumpFile(fileNameBase + QStringLiteral("-expected.data"));
             QVERIFY2(picDumpFile.open(QIODevice::WriteOnly), qPrintable(picDumpFile.errorString()));
             picDumpFile.write(reinterpret_cast<const char *>(inputImage.bits()), inputImage.sizeInBytes());
             QFile pngDumpFile(fileNameBase + QStringLiteral("-actual.data"));
             QVERIFY2(pngDumpFile.open(QIODevice::WriteOnly), qPrintable(pngDumpFile.errorString()));
             pngDumpFile.write(reinterpret_cast<const char *>(expImage.bits()), expImage.sizeInBytes());
             QString msg = QStringLiteral("Read image (") + picDumpFile.fileName() + QStringLiteral(") differed from expected image (") + pngDumpFile.fileName()
                 + QLatin1Char(')');
             QFAIL(qPrintable(msg));
         }
     }
 
     void testPreReadComment_data()
     {
         testRead_data();
     }
 
     void testPreReadComment()
     {
         QFETCH(QString, picfile);
         QFETCH(QString, comment);
 
         QImageReader inputReader(picfile, "pic");
 
         QCOMPARE(inputReader.text(QStringLiteral("Description")), comment);
     }
 
     void testPreReadSize_data()
     {
         testRead_data();
     }
 
     void testPreReadSize()
     {
         QFETCH(QString, picfile);
         QFETCH(QString, pngfile);
 
         QImageReader inputReader(picfile, "pic");
         QImageReader expReader(pngfile, "png");
 
         QCOMPARE(inputReader.size(), expReader.size());
     }
 
     void testPreReadImageFormat_data()
     {
         testRead_data();
     }
 
     void testPreReadImageFormat()
     {
         QFETCH(QString, picfile);
         QFETCH(bool, alpha);
 
         QImageReader inputReader(picfile, "pic");
 
         QCOMPARE(inputReader.imageFormat(), alpha ? QImage::Format_ARGB32 : QImage::Format_RGB32);
     }
 };
 
 QTEST_MAIN(PicTests)
 
 #include "pictest.moc"