37f617c405
Change-Id: Ide06f215a888328308a06e7e48edd666f790a5f0 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
149 lines
4.0 KiB
C++
149 lines
4.0 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2016 The Qt Company Ltd.
|
|
** Contact: https://www.qt.io/licensing/
|
|
**
|
|
** This file is part of the test suite of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
|
|
** Commercial License Usage
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
** and conditions see https://www.qt.io/terms-conditions. For further
|
|
** information use the contact form at https://www.qt.io/contact-us.
|
|
**
|
|
** GNU General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
** General Public License version 3 as published by the Free Software
|
|
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
|
|
** included in the packaging of this file. Please review the following
|
|
** information to ensure the GNU General Public License requirements will
|
|
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include <QtCore/QCoreApplication>
|
|
#include <QtCore/qfloat16.h>
|
|
#include <QtTest/QtTest>
|
|
#include <QDebug>
|
|
|
|
class tst_float: public QObject
|
|
{
|
|
Q_OBJECT
|
|
private slots:
|
|
void floatComparisons() const;
|
|
void floatComparisons_data() const;
|
|
void float16Comparisons() const;
|
|
void float16Comparisons_data() const;
|
|
void compareFloatTests() const;
|
|
void compareFloatTests_data() const;
|
|
};
|
|
|
|
void tst_float::floatComparisons() const
|
|
{
|
|
QFETCH(float, operandLeft);
|
|
QFETCH(float, operandRight);
|
|
|
|
QCOMPARE(operandLeft, operandRight);
|
|
}
|
|
|
|
void tst_float::floatComparisons_data() const
|
|
{
|
|
QTest::addColumn<float>("operandLeft");
|
|
QTest::addColumn<float>("operandRight");
|
|
|
|
QTest::newRow("should SUCCEED 1")
|
|
<< float(0)
|
|
<< float(0);
|
|
|
|
QTest::newRow("should FAIL 1")
|
|
<< float(1.00000)
|
|
<< float(3.00000);
|
|
|
|
QTest::newRow("should FAIL 2")
|
|
<< float(1.00000e-7f)
|
|
<< float(3.00000e-7f);
|
|
|
|
// QCOMPARE for floats uses qFuzzyCompare(), which succeeds if the numbers
|
|
// differ by no more than 1/100,000th of the smaller value. Thus
|
|
// QCOMPARE(99998, 99999) should fail, while QCOMPARE(100001, 100002)
|
|
// should pass.
|
|
|
|
QTest::newRow("should FAIL 3")
|
|
<< float(99998)
|
|
<< float(99999);
|
|
|
|
QTest::newRow("should SUCCEED 2")
|
|
<< float(100001)
|
|
<< float(100002);
|
|
}
|
|
|
|
void tst_float::float16Comparisons() const
|
|
{
|
|
QFETCH(qfloat16, operandLeft);
|
|
QFETCH(qfloat16, operandRight);
|
|
|
|
QCOMPARE(operandLeft, operandRight);
|
|
}
|
|
|
|
void tst_float::float16Comparisons_data() const
|
|
{
|
|
QTest::addColumn<qfloat16>("operandLeft");
|
|
QTest::addColumn<qfloat16>("operandRight");
|
|
|
|
QTest::newRow("should SUCCEED 1")
|
|
<< qfloat16(0)
|
|
<< qfloat16(0);
|
|
|
|
QTest::newRow("should FAIL 1")
|
|
<< qfloat16(1.000)
|
|
<< qfloat16(3.000);
|
|
|
|
QTest::newRow("should FAIL 2")
|
|
<< qfloat16(1.000e-4f)
|
|
<< qfloat16(3.000e-4f);
|
|
|
|
// QCOMPARE for qfloat16s uses qFuzzyCompare()
|
|
|
|
QTest::newRow("should FAIL 3")
|
|
<< qfloat16(98)
|
|
<< qfloat16(99);
|
|
|
|
QTest::newRow("should SUCCEED 2")
|
|
<< qfloat16(1001)
|
|
<< qfloat16(1002);
|
|
}
|
|
|
|
void tst_float::compareFloatTests() const
|
|
{
|
|
QFETCH(float, t1);
|
|
|
|
// Create two more values
|
|
// t2 differs from t1 by 1 ppm (part per million)
|
|
// t3 differs from t1 by 200%
|
|
// we should consider that t1 == t2 and t1 != t3
|
|
const float t2 = t1 + (t1 / 1e6);
|
|
const float t3 = 3 * t1;
|
|
|
|
QCOMPARE(t1, t2);
|
|
|
|
/* Should FAIL. */
|
|
QCOMPARE(t1, t3);
|
|
}
|
|
|
|
void tst_float::compareFloatTests_data() const
|
|
{
|
|
QTest::addColumn<float>("t1");
|
|
QTest::newRow("1e0") << 1e0f;
|
|
QTest::newRow("1e-7") << 1e-7f;
|
|
QTest::newRow("1e+7") << 1e+7f;
|
|
}
|
|
|
|
QTEST_MAIN(tst_float)
|
|
|
|
#include "tst_float.moc"
|