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kwin/tabbox/tests/test_desktopchain.cpp
Martin Gräßlin 1d959dea64 Move Desktop Chain management from Workspace into own class 
Most recently used virtual desktop chain is only used in the context of
TabBox and therefore moved into this namespace. KWin uses one desktop
chain for each activity. This is mapped by having multiple DesktopChains.
In addition there is a DesktopChainManager which contains all those
chains which are identified by a QString.

The manager gets connected to the signals emitted by VirtualDesktopManager
for changes in virtual desktops and to signals related to Activities
emitted by Workspace. This means the manager is rather generic as it does
not depend on any other components.
2013-01-07 09:47:51 +01:00

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2013 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/>.
*********************************************************************/
// KWin
#include "../desktopchain.h"
#include <QTest>
using namespace KWin::TabBox;
class TestDesktopChain : public QObject
{
Q_OBJECT
private slots:
void chainInit_data();
void chainInit();
void chainAdd_data();
void chainAdd();
void resize_data();
void resize();
void resizeAdd();
void useChain();
};
void TestDesktopChain::chainInit_data()
{
QTest::addColumn<uint>("size");
QTest::addColumn<uint>("next");
QTest::addColumn<uint>("result");
QTest::newRow("0/1") << (uint)0 << (uint)1 << (uint)1;
QTest::newRow("0/5") << (uint)0 << (uint)5 << (uint)1;
QTest::newRow("1/1") << (uint)1 << (uint)1 << (uint)1;
QTest::newRow("1/2") << (uint)1 << (uint)2 << (uint)1;
QTest::newRow("4/1") << (uint)4 << (uint)1 << (uint)2;
QTest::newRow("4/2") << (uint)4 << (uint)2 << (uint)3;
QTest::newRow("4/3") << (uint)4 << (uint)3 << (uint)4;
QTest::newRow("4/4") << (uint)4 << (uint)4 << (uint)1;
QTest::newRow("4/5") << (uint)4 << (uint)5 << (uint)1;
QTest::newRow("4/7") << (uint)4 << (uint)7 << (uint)1;
}
void TestDesktopChain::chainInit()
{
QFETCH(uint, size);
QFETCH(uint, next);
DesktopChain chain(size);
QTEST(chain.next(next), "result");
DesktopChainManager manager(this);
manager.resize(0, size);
QTEST(manager.next(next), "result");
}
void TestDesktopChain::chainAdd_data()
{
QTest::addColumn<uint>("size");
QTest::addColumn<uint>("add");
QTest::addColumn<uint>("next");
QTest::addColumn<uint>("result");
// invalid size, should not crash
QTest::newRow("0/1/1/1") << (uint)0 << (uint)1 << (uint)1 << (uint)1;
// moving first element to the front, shouldn't change the chain
QTest::newRow("4/1/1/2") << (uint)4 << (uint)1 << (uint)1 << (uint)2;
QTest::newRow("4/1/2/3") << (uint)4 << (uint)1 << (uint)2 << (uint)3;
QTest::newRow("4/1/3/4") << (uint)4 << (uint)1 << (uint)3 << (uint)4;
QTest::newRow("4/1/4/1") << (uint)4 << (uint)1 << (uint)4 << (uint)1;
// moving an element from middle to front, should reorder
QTest::newRow("4/3/1/1") << (uint)4 << (uint)3 << (uint)1 << (uint)2;
QTest::newRow("4/3/2/4") << (uint)4 << (uint)3 << (uint)2 << (uint)4;
QTest::newRow("4/3/3/1") << (uint)4 << (uint)3 << (uint)3 << (uint)1;
QTest::newRow("4/3/4/3") << (uint)4 << (uint)3 << (uint)4 << (uint)3;
// adding an element which does not exist - should leave the chain untouched
QTest::newRow("4/5/1/2") << (uint)4 << (uint)5 << (uint)1 << (uint)2;
QTest::newRow("4/5/2/3") << (uint)4 << (uint)5 << (uint)2 << (uint)3;
QTest::newRow("4/5/3/4") << (uint)4 << (uint)5 << (uint)3 << (uint)4;
QTest::newRow("4/5/4/1") << (uint)4 << (uint)5 << (uint)4 << (uint)1;
}
void TestDesktopChain::chainAdd()
{
QFETCH(uint, size);
QFETCH(uint, add);
QFETCH(uint, next);
DesktopChain chain(size);
chain.add(add);
QTEST(chain.next(next), "result");
DesktopChainManager manager(this);
manager.resize(0, size);
manager.addDesktop(0, add);
QTEST(manager.next(next), "result");
}
void TestDesktopChain::resize_data()
{
QTest::addColumn<uint>("size");
QTest::addColumn<uint>("add");
QTest::addColumn<uint>("newSize");
QTest::addColumn<uint>("next");
QTest::addColumn<uint>("result");
// basic test - increment by one
QTest::newRow("1->2/1") << (uint)1 << (uint)1 << (uint)2 << (uint)1 << (uint)2;
QTest::newRow("1->2/2") << (uint)1 << (uint)1 << (uint)2 << (uint)2 << (uint)1;
// more complex test - increment by three, keep chain untouched
QTest::newRow("3->6/1") << (uint)3 << (uint)1 << (uint)6 << (uint)1 << (uint)2;
QTest::newRow("3->6/2") << (uint)3 << (uint)1 << (uint)6 << (uint)2 << (uint)3;
QTest::newRow("3->6/3") << (uint)3 << (uint)1 << (uint)6 << (uint)3 << (uint)4;
QTest::newRow("3->6/4") << (uint)3 << (uint)1 << (uint)6 << (uint)4 << (uint)5;
QTest::newRow("3->6/5") << (uint)3 << (uint)1 << (uint)6 << (uint)5 << (uint)6;
QTest::newRow("3->6/6") << (uint)3 << (uint)1 << (uint)6 << (uint)6 << (uint)1;
// increment by three, but change it before
QTest::newRow("3->6/3/1") << (uint)3 << (uint)3 << (uint)6 << (uint)1 << (uint)2;
QTest::newRow("3->6/3/2") << (uint)3 << (uint)3 << (uint)6 << (uint)2 << (uint)4;
QTest::newRow("3->6/3/3") << (uint)3 << (uint)3 << (uint)6 << (uint)3 << (uint)1;
QTest::newRow("3->6/3/4") << (uint)3 << (uint)3 << (uint)6 << (uint)4 << (uint)5;
QTest::newRow("3->6/3/5") << (uint)3 << (uint)3 << (uint)6 << (uint)5 << (uint)6;
QTest::newRow("3->6/3/6") << (uint)3 << (uint)3 << (uint)6 << (uint)6 << (uint)3;
// basic test - decrement by one
QTest::newRow("2->1/1") << (uint)2 << (uint)1 << (uint)1 << (uint)1 << (uint)1;
QTest::newRow("2->1/2") << (uint)2 << (uint)2 << (uint)1 << (uint)1 << (uint)1;
// more complex test - decrement by three, keep chain untouched
QTest::newRow("6->3/1") << (uint)6 << (uint)1 << (uint)3 << (uint)1 << (uint)2;
QTest::newRow("6->3/2") << (uint)6 << (uint)1 << (uint)3 << (uint)2 << (uint)3;
QTest::newRow("6->3/3") << (uint)6 << (uint)1 << (uint)3 << (uint)3 << (uint)1;
// more complex test - decrement by three, move element to front
QTest::newRow("6->3/6/1") << (uint)6 << (uint)6 << (uint)3 << (uint)1 << (uint)2;
QTest::newRow("6->3/6/2") << (uint)6 << (uint)6 << (uint)3 << (uint)2 << (uint)3;
QTest::newRow("6->3/6/3") << (uint)6 << (uint)6 << (uint)3 << (uint)3 << (uint)1;
}
void TestDesktopChain::resize()
{
QFETCH(uint, size);
DesktopChain chain(size);
QFETCH(uint, add);
chain.add(add);
QFETCH(uint, newSize);
chain.resize(size, newSize);
QFETCH(uint, next);
QTEST(chain.next(next), "result");
DesktopChainManager manager(this);
manager.resize(0, size);
manager.addDesktop(0, add);
manager.resize(size, newSize);
QTEST(manager.next(next), "result");
}
void TestDesktopChain::resizeAdd()
{
// test that verifies that add works after shrinking the chain
DesktopChain chain(6);
DesktopChainManager manager(this);
manager.resize(0, 6);
chain.add(4);
manager.addDesktop(0, 4);
chain.add(5);
manager.addDesktop(4, 5);
chain.add(6);
manager.addDesktop(5, 6);
QCOMPARE(chain.next(6), (uint)5);
QCOMPARE(manager.next(6), (uint)5);
QCOMPARE(chain.next(5), (uint)4);
QCOMPARE(manager.next(5), (uint)4);
QCOMPARE(chain.next(4), (uint)1);
QCOMPARE(manager.next(4), (uint)1);
chain.resize(6, 3);
manager.resize(6, 3);
QCOMPARE(chain.next(3), (uint)3);
QCOMPARE(manager.next(3), (uint)3);
QCOMPARE(chain.next(1), (uint)3);
QCOMPARE(manager.next(1), (uint)3);
QCOMPARE(chain.next(2), (uint)3);
QCOMPARE(manager.next(2), (uint)3);
// add
chain.add(1);
manager.addDesktop(3, 1);
QCOMPARE(chain.next(3), (uint)3);
QCOMPARE(manager.next(3), (uint)3);
QCOMPARE(chain.next(1), (uint)3);
QCOMPARE(manager.next(1), (uint)3);
chain.add(2);
manager.addDesktop(1, 2);
QCOMPARE(chain.next(1), (uint)3);
QCOMPARE(manager.next(1), (uint)3);
QCOMPARE(chain.next(2), (uint)1);
QCOMPARE(manager.next(2), (uint)1);
QCOMPARE(chain.next(3), (uint)2);
QCOMPARE(manager.next(3), (uint)2);
}
void TestDesktopChain::useChain()
{
DesktopChainManager manager(this);
manager.resize(0, 4);
manager.addDesktop(0, 3);
// creating the first chain, should keep it unchanged
manager.useChain("test");
QCOMPARE(manager.next(3), (uint)1);
QCOMPARE(manager.next(1), (uint)2);
QCOMPARE(manager.next(2), (uint)4);
QCOMPARE(manager.next(4), (uint)3);
// but creating a second chain, should create an empty one
manager.useChain("second chain");
QCOMPARE(manager.next(1), (uint)2);
QCOMPARE(manager.next(2), (uint)3);
QCOMPARE(manager.next(3), (uint)4);
QCOMPARE(manager.next(4), (uint)1);
// adding a desktop should only affect the currently used one
manager.addDesktop(3, 2);
QCOMPARE(manager.next(1), (uint)3);
QCOMPARE(manager.next(2), (uint)1);
QCOMPARE(manager.next(3), (uint)4);
QCOMPARE(manager.next(4), (uint)2);
// verify by switching back
manager.useChain("test");
QCOMPARE(manager.next(3), (uint)1);
QCOMPARE(manager.next(1), (uint)2);
QCOMPARE(manager.next(2), (uint)4);
QCOMPARE(manager.next(4), (uint)3);
manager.addDesktop(3, 1);
// use second chain again and put 4th desktop to front
manager.useChain("second chain");
manager.addDesktop(3, 4);
// just for the fun a third chain, and let's shrink it
manager.useChain("third chain");
manager.resize(4, 3);
QCOMPARE(manager.next(1), (uint)2);
QCOMPARE(manager.next(2), (uint)3);
// it must have affected all chains
manager.useChain("test");
QCOMPARE(manager.next(1), (uint)3);
QCOMPARE(manager.next(3), (uint)2);
QCOMPARE(manager.next(2), (uint)1);
manager.useChain("second chain");
QCOMPARE(manager.next(3), (uint)2);
QCOMPARE(manager.next(1), (uint)3);
QCOMPARE(manager.next(2), (uint)1);
}
QTEST_MAIN(TestDesktopChain)
#include "test_desktopchain.moc"
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