MeasurementRoundingTest.java
/*
* Copyright (c) 2024, RTE (http://www.rte-france.com)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package com.powsybl.openrao.commons;
import org.junit.jupiter.api.Test;
import java.math.BigDecimal;
import java.math.RoundingMode;
import static com.powsybl.openrao.commons.MeasurementRounding.roundValueBasedOnMargin;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* @author Thomas Bouquet {@literal <thomas.bouquet at rte-france.com>}
*/
class MeasurementRoundingTest {
@Test
void testRoundValueBasedOnMargin() {
// light negative constraints (-1 <= constraint < 0)
assertEquals(BigDecimal.valueOf(40.0001), roundValueBasedOnMargin(40.0001, -0.0001, 2));
assertEquals(4, roundValueBasedOnMargin(40.0001, -0.0001, 2).scale());
assertEquals(BigDecimal.valueOf(40.0002), roundValueBasedOnMargin(40.0002, -0.0002, 2));
assertEquals(4, roundValueBasedOnMargin(40.0002, -0.0002, 2).scale());
// strong negative constraints (constraint < -1)
assertEquals(BigDecimal.valueOf(50.000).setScale(3, RoundingMode.HALF_UP), roundValueBasedOnMargin(50.0001, -10.0001, 3));
assertEquals(3, roundValueBasedOnMargin(50.0001, -10.0001, 3).scale());
assertEquals(BigDecimal.valueOf(50.0), roundValueBasedOnMargin(50.00345, -10.00345, 1));
assertEquals(1, roundValueBasedOnMargin(50.00345, -10.0001, 1).scale());
// positive constraints
assertEquals(BigDecimal.valueOf(40.0).setScale(2, RoundingMode.HALF_UP), roundValueBasedOnMargin(39.9999, 0.0001, 2));
assertEquals(2, roundValueBasedOnMargin(39.9999, 0.0001, 2).scale());
assertEquals(BigDecimal.valueOf(30.000).setScale(3, RoundingMode.HALF_UP), roundValueBasedOnMargin(29.9999, -10.0001, 3));
assertEquals(3, roundValueBasedOnMargin(29.9999, -10.0001, 3).scale());
assertEquals(BigDecimal.valueOf(30.00).setScale(2, RoundingMode.HALF_UP), roundValueBasedOnMargin(30.0, 0.0, 2));
assertEquals(2, roundValueBasedOnMargin(30.0, 0.0, 2).scale());
}
}