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/*
File : NSLMathTest.cpp
Project : LabPlot
Description : NSL tests for math functions
--------------------------------------------------------------------
SPDX-FileCopyrightText: 2024 Stefan Gerlach <stefan.gerlach@uni.kn>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "NSLMathTest.h"
extern "C" {
#include "backend/nsl/nsl_math.h"
}
void NSLMathTest::mathMultiple() {
// (2.5, 2.) -> 2.,2.,4.,2.
double value = 2.5, multiple = 2.;
QCOMPARE(nsl_math_round_multiple(value, multiple), 2.);
QCOMPARE(nsl_math_floor_multiple(value, multiple), 2.);
QCOMPARE(nsl_math_ceil_multiple(value, multiple), 4.);
QCOMPARE(nsl_math_trunc_multiple(value, multiple), 2.);
// (4.5, 3) -> 6.,3.,6.,3.
value = 4.5, multiple = 3.;
QCOMPARE(nsl_math_round_multiple(value, multiple), 6.);
QCOMPARE(nsl_math_floor_multiple(value, multiple), 3.);
QCOMPARE(nsl_math_ceil_multiple(value, multiple), 6.);
QCOMPARE(nsl_math_trunc_multiple(value, multiple), 3.);
// (-0.25, 1) -> 0.,0.,-1.,0.
value = -0.25, multiple = 1.;
QCOMPARE(nsl_math_round_multiple(value, multiple), 0.);
QCOMPARE(nsl_math_floor_multiple(value, multiple), -1.);
QCOMPARE(nsl_math_ceil_multiple(value, multiple), 0.);
QCOMPARE(nsl_math_trunc_multiple(value, multiple), 0.);
}
// ##############################################################################
// ################# performance
// ##############################################################################
QTEST_MAIN(NSLMathTest)
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