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/*
 *  Copyright (C) 2011 Andriy Rysin (rysin@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, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include <QtGui/QApplication>
#include <QtTest/QtTest>

#include "../layout_memory_persister.h"
#include "../layout_memory.h"
#include "../keyboard_config.h"


class TestLayoutMemory: public LayoutMemory {
public:
	TestLayoutMemory(const KeyboardConfig& keyboardConfig):
		LayoutMemory(keyboardConfig) {}
	QMap<QString, LayoutSet>& getLayoutMap() { return layoutMap; }
};

class LayoutMemoryPersisterTest : public QObject
{
    Q_OBJECT

    QString path;
	KeyboardConfig keyboardConfig;
    TestLayoutMemory* layoutMemory;
	LayoutMemoryPersister* layoutMemoryPersister;

	const LayoutUnit layoutUnit1;
	const LayoutUnit layoutUnit2;
	const LayoutUnit layoutUnit3;


public:
		LayoutMemoryPersisterTest():
			layoutUnit1("xx"),
			layoutUnit2("yy", "var1"),
			layoutUnit3("zz", "var2")
		{}

private Q_SLOTS:
    void initTestCase() {
    	path = "keyboard_memory_test.xml";
    	QFile(path).remove();

    	layoutMemory = new TestLayoutMemory(keyboardConfig);
    	layoutMemoryPersister = new LayoutMemoryPersister(*layoutMemory);

//    	QFile(path).remove();
    }

    void cleanupTestCase() {
    	delete layoutMemoryPersister;
    	delete layoutMemory;
    }

    void testSaveNA() {
    	QFile file(path);

    	keyboardConfig.switchingPolicy = KeyboardConfig::SWITCH_POLICY_WINDOW;
        QVERIFY( ! layoutMemoryPersister->saveToFile(file) );
        QVERIFY(QFile(path).size() == 0);

        QVERIFY( ! layoutMemoryPersister->restoreFromFile(file) );
    }

    void testSaveGlobal() {
    	QFile file(path);

    	keyboardConfig.switchingPolicy = KeyboardConfig::SWITCH_POLICY_GLOBAL;
    	layoutMemoryPersister->setGlobalLayout(layoutUnit1);
        QVERIFY( layoutMemoryPersister->saveToFile(file) );
        QVERIFY(QFile(path).size() > 0);
//        file.close();

    	keyboardConfig.layouts.clear();

        QVERIFY( layoutMemoryPersister->restoreFromFile(file) );
        QVERIFY( !layoutMemoryPersister->getGlobalLayout().isValid() );

//        file.close();
    	keyboardConfig.layouts << layoutUnit1;
        QVERIFY( layoutMemoryPersister->restoreFromFile(file) );
        QVERIFY( layoutUnit1.isValid() );
        QVERIFY( layoutMemoryPersister->getGlobalLayout().isValid() );
        QCOMPARE( layoutMemoryPersister->getGlobalLayout(), layoutUnit1);
    }

    void testSaveByApp() {
    	QFile file(path);

    	keyboardConfig.switchingPolicy = KeyboardConfig::SWITCH_POLICY_APPLICATION;

    	layoutMemoryPersister->setGlobalLayout(LayoutUnit());
    	layoutMemory->getLayoutMap().clear();

    	keyboardConfig.layouts.clear();
    	keyboardConfig.layouts << layoutUnit1 << layoutUnit2;

    	LayoutSet layoutSet1;
    	layoutSet1.layouts << layoutUnit1 << layoutUnit2;
    	layoutSet1.currentLayout = layoutUnit1;
    	layoutMemory->getLayoutMap().insert(QString("app1"), layoutSet1);

    	LayoutSet layoutSet2;
    	layoutSet2.layouts << layoutUnit2 << layoutUnit1 << layoutUnit3;
    	layoutSet2.currentLayout = layoutUnit2;
    	layoutMemory->getLayoutMap().insert(QString("app2"), layoutSet2);

        QVERIFY( layoutMemoryPersister->saveToFile(file) );
        QVERIFY(QFile(path).size() > 0);
        file.close();

        layoutMemory->getLayoutMap().clear();
        QVERIFY( ! layoutMemory->getLayoutMap().value("app1").isValid() );
        QVERIFY( ! layoutMemory->getLayoutMap().value("app2").isValid() );

        QVERIFY( layoutMemoryPersister->restoreFromFile(file) );
        QVERIFY( ! layoutMemoryPersister->getGlobalLayout().isValid() );
        QCOMPARE( layoutMemory->getLayoutMap().value("app1"), layoutSet1 );
        QVERIFY( ! layoutMemory->getLayoutMap().value("app2").isValid() );

    	keyboardConfig.layouts << layoutUnit3;

        file.close();
    	QVERIFY( layoutMemoryPersister->restoreFromFile(file) );
        QVERIFY( ! layoutMemoryPersister->getGlobalLayout().isValid() );
        QCOMPARE( layoutMemory->getLayoutMap().value("app1"), layoutSet1 );
        QCOMPARE( layoutMemory->getLayoutMap().value("app2"), layoutSet2 );
    }

//    void layoutMemroyPersisterBenchmark() {
//    	QBENCHMARK {
//    		//TODO: generate big map
//    		layoutMemoryPersister->save();
//    		layoutMemoryPersister->restore();
//    	}
//    }

};

QTEST_MAIN(LayoutMemoryPersisterTest)

#include "layout_memory_persister_test.moc"