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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <qbaselinetest.h>
#include <QtCore/QCoreApplication>
#include <QtCore/QDirIterator>
#include <QtCore/QDebug>
#include <QtCore/QProcess>
#include <QtGui/QImage>
#include <algorithm>
// qmlscenegrabber's default timeout, in ms
#define SCENE_TIMEOUT 6000
class tst_Graphs : public QObject
{
Q_OBJECT
public:
tst_Graphs();
private Q_SLOTS:
void initTestCase();
void cleanup();
void cleanupTestCase();
void testRendering_data();
void testRendering();
private:
void setupTestSuite(const QByteArray& filter = QByteArray());
void runTest(const QStringList& extraArgs = QStringList());
bool renderAndGrab(const QString& qmlFile, const QStringList& extraArgs, QImage *screenshot, QString *errMsg);
quint16 checksumFileOrDir(const QString &path);
QString testSuitePath;
int grabberTimeout;
int consecutiveErrors; // Not test failures (image mismatches), but system failures (so no image at all)
bool aborted; // This run given up because of too many system failures
};
tst_Graphs::tst_Graphs()
: consecutiveErrors(0)
, aborted(false)
{
int sceneTimeout = qEnvironmentVariableIntValue("LANCELOT_SCENE_TIMEOUT");
if (!sceneTimeout)
sceneTimeout = SCENE_TIMEOUT;
grabberTimeout = (sceneTimeout * 4) / 3; // Include some slack
}
void tst_Graphs::initTestCase()
{
QString dataDir = QFINDTESTDATA("../data/.");
if (dataDir.isEmpty())
dataDir = QStringLiteral("data");
QFileInfo fi(dataDir);
if (!fi.exists() || !fi.isDir() || !fi.isReadable())
QSKIP("Test suite data directory missing or unreadable: " + fi.canonicalFilePath().toLatin1());
testSuitePath = fi.canonicalFilePath();
#if defined(Q_OS_WIN)
const char *defaultRhiBackend = "d3d11";
#elif defined(Q_OS_DARWIN)
const char *defaultRhiBackend = "metal";
#else
const char *defaultRhiBackend = "opengl";
#endif
const QString rhiBackend = qEnvironmentVariable("QSG_RHI_BACKEND", QString::fromLatin1(defaultRhiBackend));
const QString stack = QString::fromLatin1("RHI_%1").arg(rhiBackend);
QBaselineTest::addClientProperty(QString::fromLatin1("GraphicsStack"), stack);
QByteArray msg;
if (!QBaselineTest::connectToBaselineServer(&msg))
QSKIP(msg);
}
void tst_Graphs::cleanup()
{
// Allow subsystems time to settle
if (!aborted)
QTest::qWait(grabberTimeout / 100);
}
void tst_Graphs::cleanupTestCase()
{
QBaselineTest::finalizeAndDisconnect();
}
void tst_Graphs::testRendering_data()
{
setupTestSuite();
consecutiveErrors = 0;
aborted = false;
}
void tst_Graphs::testRendering()
{
runTest();
}
void tst_Graphs::setupTestSuite(const QByteArray &filter)
{
QTest::addColumn<QString>("qmlFile");
int numItems = 0;
QStringList ignoreItems;
QFile ignoreFile(testSuitePath + "/Ignore");
if (ignoreFile.open(QIODevice::ReadOnly)) {
while (!ignoreFile.atEnd()) {
QByteArray line = ignoreFile.readLine().trimmed();
if (!line.isEmpty() && !line.startsWith('#'))
ignoreItems += line;
}
}
QStringList itemFiles;
QDirIterator it(testSuitePath, QDirIterator::Subdirectories);
while (it.hasNext()) {
QString fp = it.next();
if (fp.endsWith(".qml")) {
QString itemName = fp.mid(testSuitePath.length() + 1);
if (!ignoreItems.contains(itemName) && (filter.isEmpty() || !itemName.startsWith(filter)))
itemFiles.append(it.filePath());
}
}
std::sort(itemFiles.begin(), itemFiles.end());
for (const QString &filePath : std::as_const(itemFiles)) {
QByteArray itemName = filePath.mid(testSuitePath.length() + 1).toLatin1();
QBaselineTest::newRow(itemName, checksumFileOrDir(filePath)) << filePath;
numItems++;
}
if (!numItems)
QSKIP("No .qml test files found in " + testSuitePath.toLatin1());
}
void tst_Graphs::runTest(const QStringList &extraArgs)
{
// qDebug() << "Rendering" << QTest::currentDataTag();
if (aborted)
QSKIP("System too unstable.");
QFETCH(QString, qmlFile);
QImage screenShot;
QString errorMessage;
if (renderAndGrab(qmlFile, extraArgs, &screenShot, &errorMessage)) {
consecutiveErrors = 0;
}
else {
if (++consecutiveErrors >= 3 && QBaselineTest::shouldAbortIfUnstable())
aborted = true; // Just give up if screen grabbing fails 3 times in a row
QFAIL(qPrintable("QuickView grabbing failed: " + errorMessage));
}
QBASELINE_TEST(screenShot);
}
bool tst_Graphs::renderAndGrab(const QString &qmlFile,
const QStringList &extraArgs,
QImage *screenshot,
QString *errMsg)
{
bool usePipe = true; // Whether to transport the grabbed image using temp. file or pipe. TBD: cmdline option
#if defined(Q_OS_WIN)
usePipe = false;
#endif
QProcess grabber;
grabber.setProcessChannelMode(QProcess::ForwardedErrorChannel);
QString cmd = QCoreApplication::applicationDirPath() + "/qgraphs_qmlscenegrabber";
QStringList args = extraArgs;
#if defined(Q_OS_WIN)
args << "-platform" << "windows:fontengine=freetype";
#elif defined(Q_OS_DARWIN)
args << "-platform" << "cocoa:fontengine=freetype";
#endif
QString tmpfile = usePipe ? QString("-") : QString("%1/qmlscenegrabber-%2-out.ppm")
.arg(QDir::tempPath()).arg(QCoreApplication::applicationPid());
args << qmlFile << "-o" << tmpfile;
grabber.start(cmd, args, QIODevice::ReadOnly);
grabber.waitForFinished(grabberTimeout);
if (grabber.state() != QProcess::NotRunning) {
grabber.terminate();
grabber.waitForFinished(grabberTimeout / 4);
}
QImage img;
bool res = usePipe ? img.load(&grabber, "ppm") : img.load(tmpfile);
if (!res || img.isNull()) {
if (errMsg) {
QString s("Failed to grab screen. qmlscenegrabber exitcode: %1. Process error: %2.");
*errMsg = s.arg(grabber.exitCode()).arg(grabber.errorString());
}
if (!usePipe)
QFile::remove(tmpfile);
return false;
}
if (screenshot)
*screenshot = img;
if (!usePipe)
QFile::remove(tmpfile);
return true;
}
quint16 tst_Graphs::checksumFileOrDir(const QString &path)
{
QFileInfo fi(path);
if (!fi.exists() || !fi.isReadable())
return 0;
if (fi.isFile()) {
QFile f(path);
bool isBinary = path.endsWith(".png") || path.endsWith(".jpg");
if (!f.open(isBinary ? QIODevice::ReadOnly : QIODevice::ReadOnly | QIODevice::Text))
qFatal("Could not open file %s", qPrintable(path));
QByteArray contents = f.readAll();
return qChecksum(contents);
}
if (fi.isDir()) {
static const QStringList nameFilters = QStringList() << "*.qml" << "*.cpp" << "*.png" << "*.jpg";
quint16 cs = 0;
const auto entryList = QDir(fi.filePath()).entryList(nameFilters,
QDir::Dirs | QDir::Files | QDir::NoDotAndDotDot);
for (const QString &item : entryList)
cs ^= checksumFileOrDir(path + QLatin1Char('/') + item);
return cs;
}
return 0;
}
QBASELINETEST_MAIN(tst_Graphs)
#include "tst_baseline_graphs.moc"
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