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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
// Generalization dimensions TBD:
// ImageFormat: Rendering to different bit formats
// Engine: Rendering with different engines
// Painter renderhints? (set in qps itself)
#include <QtTest/QtTest>
#include <paintcommands.h>
#include <QPainter>
#include <QLibraryInfo>
#include <baselineprotocol.h>
#ifndef SRCDIR
#define SRCDIR "."
#endif
static const QLatin1String scriptsDir(SRCDIR "/scripts/");
class tst_Lancelot : public QObject
{
Q_OBJECT
public:
tst_Lancelot();
private:
QImage getBaseline(const QString &fileName, bool *created);
QImage render(const QString &fileName);
QStringList loadScriptFile(const QString &filePath);
QString errorMsg;
BaselineProtocol proto;
private slots:
void initTestCase();
void cleanupTestCase() {}
void testRendering_data();
void testRendering();
};
tst_Lancelot::tst_Lancelot()
{
}
void tst_Lancelot::initTestCase()
{
#if !defined(Q_OS_LINUX)
QSKIP("For the moment, this test is only supported on Linux.", SkipAll);
#endif
// Check the environment here, so that we can just skip on trouble!
if (!proto.connect()) {
QWARN(qPrintable(proto.errorMessage()));
QSKIP("Communication with baseline image server failed.", SkipAll);
}
// TBD: preload scripts, to confirm reading and generate checksums
}
void tst_Lancelot::testRendering_data()
{
// search the data directory for qps files and make a row for each.
// filter out those marked as blacklisted (in the file itself?)
// Rather do the above in initTestCase. Can load & split them all also.
// And baselines too?
QTest::addColumn<QString>("fileName");
// ### no, don't do it like this, we want opt-in, not opt-out, for stability
QDir qpsDir(scriptsDir);
QStringList files = qpsDir.entryList(QStringList() << QLatin1String("*.qps"), QDir::Files | QDir::Readable);
files.removeOne(QLatin1String("porter_duff.qps"));
files.removeOne(QLatin1String("porter_duff2.qps"));
files.removeOne(QLatin1String("images.qps"));
files.removeOne(QLatin1String("sizes.qps"));
if (files.isEmpty()) {
QWARN("No qps files found in " + qpsDir.path().toLatin1());
QSKIP("Aborted due to errors.", SkipAll);
}
foreach(QString fileName, files) {
QString baseName = fileName.section('.', 0, -2);
QTest::newRow(baseName.toLatin1()) << fileName;
}
}
// We treat failures because of test environment
// (e.g. script files not found) as just warnings, and not
// QFAILs, to avoid false negatives caused by environment
// or server instability
void tst_Lancelot::testRendering()
{
errorMsg.clear();
QFETCH(QString, fileName);
bool newBaselineCreated = false;
QImage baseline = getBaseline(fileName, &newBaselineCreated);
if (newBaselineCreated)
QSKIP("Baseline not found; new baseline created.", SkipSingle);
if (!errorMsg.isNull() || baseline.isNull()) {
QWARN("Error: Failed to get baseline image. " + errorMsg.toLatin1());
QSKIP("Aborted due to errors.", SkipSingle);
}
QImage rendered = render(fileName);
if (!errorMsg.isNull() || rendered.isNull()) {
// Indicates that it's an error in the test environment, not Qt
QWARN("Error: Failed to render image. " + errorMsg.toLatin1());
QSKIP("Aborted due to errors.", SkipSingle);
}
if (rendered.format() != baseline.format())
baseline = baseline.convertToFormat(rendered.format());
// The actual check:
if (rendered != baseline) {
QByteArray failMsg;
proto.submitMismatch(fileName, rendered, &failMsg);
#if 1
// Also generate & submit the diff image
QImage diff(rendered.size(), QImage::Format_RGB32);
diff.fill(0);
QPainter p(&diff);
p.drawImage(0, 0, rendered);
p.setCompositionMode(QPainter::RasterOp_SourceXorDestination);
p.drawImage(0, 0, baseline);
p.end();
proto.submitMismatch(fileName + QLatin1String("_diff"), diff, 0);
#endif
failMsg.prepend("Rendered image differs from baseline. ");
QFAIL(failMsg.constData());
}
}
QImage tst_Lancelot::getBaseline(const QString &fileName, bool *created)
{
QImage baseline;
BaselineProtocol::Command response;
if (!proto.requestBaseline(fileName, &response, &baseline)) {
errorMsg = QLatin1String("Error downloading baseline from server. ") + proto.errorMessage();
return QImage();
}
if (response == BaselineProtocol::BaselineNotPresent) {
// Here: Create new baseline!
baseline = render(fileName);
if (!errorMsg.isNull() || baseline.isNull()) {
errorMsg.prepend(QLatin1String("Failed to render new baseline. "));
return QImage();
}
if (!proto.submitNewBaseline(fileName, baseline)) {
errorMsg = QLatin1String("Failed to submit new baseline to server. ") + proto.errorMessage();
return QImage();
}
if (created)
*created = true;
}
else if (response == BaselineProtocol::IgnoreCase) {
// Blacklisted or similar, signal back that this item should be skipped
// Will effectively happen with this:
errorMsg = QLatin1String("Baseline server says skip this");
return QImage();
}
else if (response != BaselineProtocol::AcceptBaseline) {
errorMsg = QLatin1String("Unknown response from baseline server. ");
return QImage();
}
return baseline;
}
QImage tst_Lancelot::render(const QString &fileName)
{
QString filePath = scriptsDir + fileName;
QStringList script = loadScriptFile(filePath);
if (script.isEmpty())
return QImage();
QImage img(800, 800, QImage::Format_ARGB32_Premultiplied);
QPainter p(&img);
PaintCommands pcmd(script, 800, 800);
pcmd.setPainter(&p);
pcmd.setFilePath(QFileInfo(filePath).absoluteFilePath()); // eh yuck
pcmd.runCommands();
p.end();
return img;
}
QStringList tst_Lancelot::loadScriptFile(const QString &filePath)
{
QFile file(filePath);
if (!file.open(QFile::ReadOnly)) {
errorMsg = QLatin1String("Failed to open script file ") + filePath;
return QStringList();
}
//# use the new readscript function instead?
QTextStream stream(&file);
return stream.readAll().split(QLatin1Char('\n'), QString::SkipEmptyParts);
}
QTEST_MAIN(tst_Lancelot)
#include "tst_lancelot.moc"
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