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/*
SPDX-FileCopyrightText: 2008 Andreas Pakulat <apaku@gmx.de>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include "testcore.h"
#include <shell/uicontroller.h>
#include <shell/sessioncontroller.h>
#include <shell/languagecontroller.h>
#include <shell/runcontroller.h>
#include <shell/documentcontroller.h>
#include <shell/plugincontroller.h>
#include <shell/partcontroller.h>
#include <shell/projectcontroller.h>
#include <language/backgroundparser/backgroundparser.h>
#include <interfaces/isession.h>
#include "../shell/core_p.h"
#include <QCoreApplication>
#include <QTest>
#include <KParts/MainWindow>
namespace KDevelop {
TestCore::TestCore()
: Core(new CorePrivate(this))
{
Core::m_self = this;
}
TestCore* TestCore::initialize(Core::Setup mode, const QString& session)
{
qRegisterMetaType<QList<QUrl>>("QList<QUrl>");
KLocalizedString::setApplicationDomain(QByteArrayLiteral("kdevelop"));
if (!Core::m_self) {
new TestCore;
}
auto* core = qobject_cast<TestCore*>(Core::m_self);
Q_ASSERT(core);
core->initializeNonStatic(mode, session);
if (mode == Default) {
// we don't want the window to be visible, hide it
// the unit tests should work anyways
core->uiController()->activeMainWindow()->hide();
}
// resume the background parser when a unit test replaces the project controller
QObject::connect(core->d->projectController.data(), &ProjectController::destroyed,
core, [core]() {
core->d->languageController->backgroundParser()->resume();
});
return core;
}
void TestCore::initializeNonStatic(Core::Setup mode, const QString& _session)
{
QString session = _session;
if (_session.isEmpty()) {
// use a distinct session name for unit test sessions
// they are temporary (see below) but still - we want to make sure
session = QLatin1String("test-") + QCoreApplication::applicationName();
}
d->initialize(mode, session);
if (_session.isEmpty()) {
activeSession()->setTemporary(true);
}
}
void TestCore::shutdown()
{
if (self()) {
// trigger eventloop to handle Queued connections
// before entering cleanup
// this can fix random crashes under certain conditions
// TODO: see to gain full control over execution flow instead of random waiting
QTest::qWait(1);
// The event processing by above's QTest::qWait can potentially
// also result in the destruction of the Core instance.
// So we need to recheck once more next if the instance still exists.
//
// This can happen due to calling Core::shutdown(), e.g. via the
// KDevelop::MainWindow destructor, which in turn could be invoked by
// calling close() on the window instance. QWidget::close() invokes
// deleteLater(), creating a QDeferredDeleteEvent for itself.
// Core::shutdown() also calls deleteLater() on itself, which results
// in a QDeferredDeleteEvent for the Core instance.
// Now with QTest::qWait (as of Qt 6.7) the 1 ms time window passed as
// argument (the minimal value possible) for its event processing is
// mapped onto a single 10 ms time slot. There first
// QCoreApplication::processEvents(QEventLoop::AllEvents, ...) and then
// QCoreApplication::sendPostedEvents(nullptr, QEvent::DeferredDelete)
// is invoked, before the qWait method returns.
// The processEvents() method would process the QDeferredDeleteEvent for
// the KDevelop::MainWindow, and with the glib event dispatcher
// actually trigger posting the event to the handlers. So the destructor
// is invoked, which again yields in the end the QDeferredDeleteEvent for
// the Core, added to the current event queue.
// So sendPostedEvents() then picks up that new event as well for
// delivering it to the handlers, and thus the destructor of the Core
// instance is invoked in the same qWait time slot.
if (self()) {
self()->shutdown();
// wait until Core is deleted via event loop
QTest::qWait(1);
}
}
}
void TestCore::setShuttingDown(bool shuttingDown)
{
d->m_shuttingDown = shuttingDown;
}
void TestCore::setSessionController(SessionController* ctrl)
{
d->sessionController = ctrl;
}
void TestCore::setPluginController(PluginController* ctrl)
{
d->pluginController = ctrl;
}
void TestCore::setRunController(RunController* ctrl)
{
d->runController = ctrl;
}
void TestCore::setDocumentController(DocumentController* ctrl)
{
d->documentController = ctrl;
}
void TestCore::setPartController(PartController* ctrl)
{
d->partController = ctrl;
}
void TestCore::setProjectController(ProjectController* ctrl)
{
d->projectController = ctrl;
}
void TestCore::setLanguageController(LanguageController* ctrl)
{
d->languageController = ctrl;
}
void TestCore::setUiController(UiController* ctrl)
{
d->uiController = ctrl;
}
}
#include "moc_testcore.cpp"
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