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/*
* Copyright (c) 2012 Dmitry Kazakov <dimula73@gmail.com>
*
* 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 "kis_fixed_point_maths_test.h"
#include <qtest_kde.h>
#include "kis_fixed_point_maths.h"
void KisFixedPointMathsTest::testOperators()
{
KisFixedPoint fp1(1);
KisFixedPoint fp2(2);
KisFixedPoint fp3(qreal(2.5));
KisFixedPoint fp4(qreal(2.0));
QVERIFY(fp1 < fp2);
QVERIFY(fp2 < fp3);
QVERIFY(fp2 > fp1);
QVERIFY(fp3 > fp2);
QVERIFY(fp1 != fp2);
QVERIFY(fp2 == fp4);
QCOMPARE(fp1 + fp2, KisFixedPoint(3));
QCOMPARE(fp1 - fp2, KisFixedPoint(-1));
QCOMPARE(fp1 * fp2, KisFixedPoint(2));
QCOMPARE(fp2 * fp3, KisFixedPoint(5));
QCOMPARE(fp1 / fp2, KisFixedPoint(qreal(0.5)));
QCOMPARE(fp1 / fp3, KisFixedPoint(qreal(0.4)));
QCOMPARE(fp2 / fp3, KisFixedPoint(qreal(0.8)));
}
void KisFixedPointMathsTest::testOperatorsNegative()
{
KisFixedPoint fp1(qreal(-2.5));
KisFixedPoint fp2(2);
KisFixedPoint fp3(-3);
QCOMPARE(fp1 + fp2, KisFixedPoint(qreal(-0.5)));
QCOMPARE(fp1 - fp2, KisFixedPoint(qreal(-4.5)));
QCOMPARE(fp1 * fp2, KisFixedPoint(-5));
QCOMPARE(fp1 * fp3, KisFixedPoint(qreal(7.5)));
QCOMPARE(fp2 / fp1, KisFixedPoint(qreal(-0.8)));
QCOMPARE(fp1 / fp2, KisFixedPoint(qreal(-1.25)));
QCOMPARE(fp3 / fp1, KisFixedPoint(qreal(1.2)));
}
void KisFixedPointMathsTest::testConversions()
{
KisFixedPoint fp1(qreal(2.5));
KisFixedPoint fp2(qreal(2.73));
KisFixedPoint fp3(qreal(2.34));
QCOMPARE(fp1.toInt(), 2);
QCOMPARE(fp1.toIntRound(), 3);
QCOMPARE(fp1.toIntFloor(), 2);
QCOMPARE(fp1.toIntCeil(), 3);
QCOMPARE(fp1.toFloat(), qreal(2.5));
QCOMPARE(fp2.toInt(), 2);
QCOMPARE(fp2.toIntRound(), 3);
QCOMPARE(fp2.toIntFloor(), 2);
QCOMPARE(fp2.toIntCeil(), 3);
QCOMPARE(fp2.toFloat(), qreal(698.0/256.0));
QCOMPARE(fp3.toInt(), 2);
QCOMPARE(fp3.toIntRound(), 2);
QCOMPARE(fp3.toIntFloor(), 2);
QCOMPARE(fp3.toIntCeil(), 3);
QCOMPARE(fp3.toFloat(), qreal(599.0/256.0));
}
void KisFixedPointMathsTest::testConversionsNegative()
{
KisFixedPoint fp1(qreal(-2.5));
KisFixedPoint fp2(qreal(-2.73));
KisFixedPoint fp3(qreal(-2.34));
QCOMPARE(fp1.toInt(), -2);
QCOMPARE(fp1.toIntRound(), -3);
QCOMPARE(fp1.toIntFloor(), -3);
QCOMPARE(fp1.toIntCeil(), -2);
QCOMPARE(fp2.toInt(), -2);
QCOMPARE(fp2.toIntRound(), -3);
QCOMPARE(fp2.toIntFloor(), -3);
QCOMPARE(fp2.toIntCeil(), -2);
QCOMPARE(fp3.toInt(), -2);
QCOMPARE(fp3.toIntRound(), -2);
QCOMPARE(fp3.toIntFloor(), -3);
QCOMPARE(fp3.toIntCeil(), -2);
}
QTEST_KDEMAIN(KisFixedPointMathsTest, GUI)
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