kwin/autotests/integration/dont_crash_empty_deco.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2016 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "kwin_wayland_test.h"
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#include "platform.h"
#include "x11client.h"
#include "composite.h"
#include "cursor.h"
#include "scene.h"
#include "screenedge.h"
#include "screens.h"
#include "wayland_server.h"
#include "workspace.h"
#include <kwineffects.h>
#include <KDecoration2/Decoration>
#include <linux/input.h>
namespace KWin
{
static const QString s_socketName = QStringLiteral("wayland_test_kwin_dont_crash_empty_decoration-0");
class DontCrashEmptyDecorationTest : public QObject
{
Q_OBJECT
private Q_SLOTS:
void initTestCase();
void init();
void testBug361551();
};
void DontCrashEmptyDecorationTest::initTestCase()
{
qRegisterMetaType<KWin::AbstractClient*>();
QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
QVERIFY(applicationStartedSpy.isValid());
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kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
QVERIFY(waylandServer()->init(s_socketName.toLocal8Bit()));
QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
// this test needs to enforce OpenGL compositing to get into the crashy condition
qputenv("KWIN_COMPOSE", QByteArrayLiteral("O2"));
kwinApp()->start();
QVERIFY(applicationStartedSpy.wait());
QCOMPARE(screens()->count(), 2);
QCOMPARE(screens()->geometry(0), QRect(0, 0, 1280, 1024));
QCOMPARE(screens()->geometry(1), QRect(1280, 0, 1280, 1024));
setenv("QT_QPA_PLATFORM", "wayland", true);
waylandServer()->initWorkspace();
auto scene = KWin::Compositor::self()->scene();
QVERIFY(scene);
QCOMPARE(scene->compositingType(), KWin::OpenGL2Compositing);
}
void DontCrashEmptyDecorationTest::init()
{
screens()->setCurrent(0);
Cursors::self()->mouse()->setPos(QPoint(640, 512));
}
void DontCrashEmptyDecorationTest::testBug361551()
{
// this test verifies that resizing an X11 window to an invalid size does not result in crash on unmap
// when the DecorationRenderer gets copied to the Deleted
// there a repaint is scheduled and the resulting texture is invalid if the window size is invalid
// create an xcb window
xcb_connection_t *c = xcb_connect(nullptr, nullptr);
QVERIFY(!xcb_connection_has_error(c));
xcb_window_t w = xcb_generate_id(c);
xcb_create_window(c, XCB_COPY_FROM_PARENT, w, rootWindow(), 0, 0, 10, 10, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCB_COPY_FROM_PARENT, 0, nullptr);
xcb_map_window(c, w);
xcb_flush(c);
// we should get a client for it
QSignalSpy windowCreatedSpy(workspace(), &Workspace::clientAdded);
QVERIFY(windowCreatedSpy.isValid());
QVERIFY(windowCreatedSpy.wait());
X11Client *client = windowCreatedSpy.first().first().value<X11Client *>();
QVERIFY(client);
QCOMPARE(client->window(), w);
QVERIFY(client->isDecorated());
// let's set a stupid geometry
client->setFrameGeometry({0, 0, 0, 0});
QCOMPARE(client->frameGeometry(), QRect(0, 0, 0, 0));
// and destroy the window again
xcb_unmap_window(c, w);
xcb_destroy_window(c, w);
xcb_flush(c);
xcb_disconnect(c);
QSignalSpy windowClosedSpy(client, &X11Client::windowClosed);
QVERIFY(windowClosedSpy.isValid());
QVERIFY(windowClosedSpy.wait());
}
}
WAYLANDTEST_MAIN(KWin::DontCrashEmptyDecorationTest)
#include "dont_crash_empty_deco.moc"