kwin/autotests/test_screens.cpp
Martin Gräßlin 4eadc9daef [auto-tests] Add an initial test for Screens
This is a very interesting auto test as Screens uses both Workspace
and Client. Thus it operates in the "impossible to mock" area.

The solution is to provide mock includes in autotests and ensure that
when building the auto-test the mock header includes will be picked
first. There is now a mock class for Workspace and Client providing
just the API pieces used inside Screens.

As Screens is abstract and we cannot properly interact with
QDesktopWidget there is also a MockScreens class inheriting from Screens
and mocking the required functionality (by just operating on a list of
QRects).

The auto-test itself is only performing checks on the abstract class.
The mock class is indirectly tested by Screens calling into the virtual
methods. The test case is not yet complete, but looking quite good
already.
2014-09-17 10:29:03 +02:00

231 lines
7.9 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2014 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 "mock_workspace.h"
#include "../cursor.h"
#include "mock_screens.h"
#include "mock_client.h"
// Qt
#include <QtTest/QtTest>
// Mock
namespace KWin
{
QPoint Cursor::pos()
{
return QPoint();
}
}
class TestScreens : public QObject
{
Q_OBJECT
private Q_SLOTS:
void testCurrentFollowsMouse();
void testSize_data();
void testSize();
void testCount();
void testIntersecting_data();
void testIntersecting();
void testCurrent_data();
void testCurrent();
void testCurrentClient();
};
void TestScreens::testCurrentFollowsMouse()
{
KWin::MockWorkspace ws;
KWin::Screens *screens = KWin::Screens::create(&ws);
QVERIFY(!screens->isCurrentFollowsMouse());
screens->setCurrentFollowsMouse(true);
QVERIFY(screens->isCurrentFollowsMouse());
screens->setCurrentFollowsMouse(false);
QVERIFY(!screens->isCurrentFollowsMouse());
}
void TestScreens::testSize_data()
{
QTest::addColumn< QList<QRect> >("geometries");
QTest::addColumn<QSize>("expectedSize");
QTest::newRow("empty") << QList<QRect>{{QRect()}} << QSize(0, 0);
QTest::newRow("cloned") << QList<QRect>{{QRect{0, 0, 200, 100}, QRect{0, 0, 200, 100}}} << QSize(200, 100);
QTest::newRow("adjacent") << QList<QRect>{{QRect{0, 0, 200, 100}, QRect{200, 100, 400, 300}}} << QSize(600, 400);
QTest::newRow("overlapping") << QList<QRect>{{QRect{-10, -20, 50, 100}, QRect{0, 0, 100, 200}}} << QSize(110, 220);
QTest::newRow("gap") << QList<QRect>{{QRect{0, 0, 10, 20}, QRect{20, 40, 10, 20}}} << QSize(30, 60);
}
void TestScreens::testSize()
{
using namespace KWin;
MockWorkspace ws;
MockScreens *mockScreens = static_cast<MockScreens*>(Screens::create(&ws));
QSignalSpy sizeChangedSpy(screens(), SIGNAL(sizeChanged()));
QVERIFY(sizeChangedSpy.isValid());
QCOMPARE(screens()->size(), QSize(100, 100));
QFETCH(QList<QRect>, geometries);
QVERIFY(!screens()->isChanging());
mockScreens->setGeometries(geometries);
QVERIFY(screens()->isChanging());
QVERIFY(sizeChangedSpy.wait());
QVERIFY(!screens()->isChanging());
QTEST(screens()->size(), "expectedSize");
}
void TestScreens::testCount()
{
using namespace KWin;
MockWorkspace ws;
MockScreens *mockScreens = static_cast<MockScreens*>(Screens::create(&ws));
QSignalSpy countChangedSpy(screens(), SIGNAL(countChanged(int,int)));
QVERIFY(countChangedSpy.isValid());
QCOMPARE(screens()->count(), 1);
// change to two screens
QList<QRect> geometries{{QRect{0, 0, 100, 200}, QRect{100, 0, 100, 200}}};
mockScreens->setGeometries(geometries);
QVERIFY(countChangedSpy.wait());
QCOMPARE(countChangedSpy.count(), 1);
QCOMPARE(countChangedSpy.first().first().toInt(), 1);
QCOMPARE(countChangedSpy.first().last().toInt(), 2);
QCOMPARE(screens()->count(), 2);
// go back to one screen
geometries.takeLast();
mockScreens->setGeometries(geometries);
QVERIFY(countChangedSpy.wait());
QCOMPARE(countChangedSpy.count(), 2);
QCOMPARE(countChangedSpy.last().first().toInt(), 2);
QCOMPARE(countChangedSpy.last().last().toInt(), 1);
QCOMPARE(screens()->count(), 1);
// setting the same geometries shouldn't emit the signal, but we should get a changed signal
QSignalSpy changedSpy(screens(), SIGNAL(changed()));
QVERIFY(changedSpy.isValid());
mockScreens->setGeometries(geometries);
QVERIFY(changedSpy.wait());
QCOMPARE(countChangedSpy.count(), 2);
}
void TestScreens::testIntersecting_data()
{
QTest::addColumn<QList<QRect>>("geometries");
QTest::addColumn<QRect>("testGeometry");
QTest::addColumn<int>("expectedCount");
QTest::newRow("null-rect") << QList<QRect>{{QRect{0, 0, 100, 100}}} << QRect() << 0;
QTest::newRow("non-overlapping") << QList<QRect>{{QRect{0, 0, 100, 100}}} << QRect(100, 0, 100, 100) << 0;
QTest::newRow("in-between") << QList<QRect>{{QRect{0, 0, 10, 20}, QRect{20, 40, 10, 20}}} << QRect(15, 0, 2, 2) << 0;
QTest::newRow("gap-overlapping") << QList<QRect>{{QRect{0, 0, 10, 20}, QRect{20, 40, 10, 20}}} << QRect(9, 10, 200, 200) << 2;
QTest::newRow("larger") << QList<QRect>{{QRect{0, 0, 100, 100}}} << QRect(-10, -10, 200, 200) << 1;
QTest::newRow("several") << QList<QRect>{{QRect{0, 0, 100, 100}, QRect{100, 0, 100, 100}, QRect{200, 100, 100, 100}, QRect{300, 100, 100, 100}}} << QRect(0, 0, 300, 300) << 3;
}
void TestScreens::testIntersecting()
{
using namespace KWin;
MockWorkspace ws;
MockScreens *mockScreens = static_cast<MockScreens*>(Screens::create(&ws));
QSignalSpy changedSpy(screens(), SIGNAL(changed()));
QVERIFY(changedSpy.isValid());
QFETCH(QList<QRect>, geometries);
mockScreens->setGeometries(geometries);
// first is before it's updated
QVERIFY(changedSpy.wait());
// second is after it's updated
QVERIFY(changedSpy.wait());
QFETCH(QRect, testGeometry);
QCOMPARE(screens()->count(), geometries.count());
QTEST(screens()->intersecting(testGeometry), "expectedCount");
}
void TestScreens::testCurrent_data()
{
QTest::addColumn<int>("current");
QTest::addColumn<bool>("signal");
QTest::newRow("unchanged") << 0 << false;
QTest::newRow("changed") << 1 << true;
}
void TestScreens::testCurrent()
{
using namespace KWin;
MockWorkspace ws;
Screens::create(&ws);
QSignalSpy currentChangedSpy(screens(), SIGNAL(currentChanged()));
QVERIFY(currentChangedSpy.isValid());
QFETCH(int, current);
screens()->setCurrent(current);
QCOMPARE(screens()->current(), current);
QTEST(!currentChangedSpy.isEmpty(), "signal");
}
void TestScreens::testCurrentClient()
{
using namespace KWin;
MockWorkspace ws;
MockScreens *mockScreens = static_cast<MockScreens*>(Screens::create(&ws));
QSignalSpy changedSpy(screens(), SIGNAL(changed()));
QVERIFY(changedSpy.isValid());
mockScreens->setGeometries(QList<QRect>{{QRect{0, 0, 100, 100}, QRect{100, 0, 100, 100}}});
// first is before it's updated
QVERIFY(changedSpy.wait());
// second is after it's updated
QVERIFY(changedSpy.wait());
QSignalSpy currentChangedSpy(screens(), SIGNAL(currentChanged()));
QVERIFY(currentChangedSpy.isValid());
// create a mock client
Client *client = new Client(&ws);
client->setScreen(1);
// it's not the active client, so changing won't work
screens()->setCurrent(client);
QVERIFY(currentChangedSpy.isEmpty());
QCOMPARE(screens()->current(), 0);
// making the client active should affect things
client->setActive(true);
ws.setActiveClient(client);
// first of all current should be changed just by the fact that there is an active client
QCOMPARE(screens()->current(), 1);
// but also calling setCurrent should emit the changed signal
screens()->setCurrent(client);
QCOMPARE(currentChangedSpy.count(), 1);
QCOMPARE(screens()->current(), 1);
// and it should even still be on screen 1 if we make the client non-current again
ws.setActiveClient(nullptr);
client->setActive(false);
QCOMPARE(screens()->current(), 1);
}
QTEST_MAIN(TestScreens)
#include "test_screens.moc"