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.
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SPDX-FileCopyrightText: 2016 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "kwin_wayland_test.h"
#include "composite.h"
#include "core/output.h"
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#include "core/outputbackend.h"
#include "core/renderbackend.h"
#include "libkwineffects/kwineffects.h"
#include "pointer_input.h"
#include "wayland_server.h"
#include "workspace.h"
#include "x11window.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()
{
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qRegisterMetaType<KWin::Window *>();
QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
QVERIFY(waylandServer()->init(s_socketName));
QMetaObject::invokeMethod(kwinApp()->outputBackend(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(QVector<QRect>, QVector<QRect>() << QRect(0, 0, 1280, 1024) << QRect(1280, 0, 1280, 1024)));
// this test needs to enforce OpenGL compositing to get into the crashy condition
qputenv("KWIN_COMPOSE", QByteArrayLiteral("O2"));
kwinApp()->start();
QVERIFY(applicationStartedSpy.wait());
const auto outputs = workspace()->outputs();
QCOMPARE(outputs.count(), 2);
QCOMPARE(outputs[0]->geometry(), QRect(0, 0, 1280, 1024));
QCOMPARE(outputs[1]->geometry(), QRect(1280, 0, 1280, 1024));
setenv("QT_QPA_PLATFORM", "wayland", true);
QCOMPARE(Compositor::self()->backend()->compositingType(), KWin::OpenGLCompositing);
}
void DontCrashEmptyDecorationTest::init()
{
workspace()->setActiveOutput(QPoint(640, 512));
input()->pointer()->warp(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
Test::XcbConnectionPtr connection = Test::createX11Connection();
auto c = connection.get();
QVERIFY(c);
QVERIFY(!xcb_connection_has_error(c));
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xcb_window_t windowId = xcb_generate_id(c);
xcb_create_window(c, XCB_COPY_FROM_PARENT, windowId, rootWindow(), 0, 0, 10, 10, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCB_COPY_FROM_PARENT, 0, nullptr);
xcb_map_window(c, windowId);
xcb_flush(c);
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// we should get a window for it
QSignalSpy windowCreatedSpy(workspace(), &Workspace::windowAdded);
QVERIFY(windowCreatedSpy.wait());
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X11Window *window = windowCreatedSpy.first().first().value<X11Window *>();
QVERIFY(window);
QCOMPARE(window->window(), windowId);
QVERIFY(window->isDecorated());
// let's set a stupid geometry
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window->moveResize({0, 0, 0, 0});
QCOMPARE(window->frameGeometry(), QRect(0, 0, 0, 0));
// and destroy the window again
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xcb_unmap_window(c, windowId);
xcb_destroy_window(c, windowId);
xcb_flush(c);
QSignalSpy windowClosedSpy(window, &X11Window::closed);
QVERIFY(windowClosedSpy.wait());
}
}
WAYLANDTEST_MAIN(KWin::DontCrashEmptyDecorationTest)
#include "dont_crash_empty_deco.moc"