| /******************************************************************************* |
| * Copyright (c) 2017 École Polytechnique de Montréal |
| * |
| * All rights reserved. This program and the accompanying materials are |
| * made available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.tmf.chart.ui.tests.data; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| |
| import java.math.BigDecimal; |
| |
| import org.eclipse.jdt.annotation.NonNull; |
| import org.eclipse.tracecompass.internal.tmf.chart.ui.data.ChartRange; |
| import org.junit.Test; |
| |
| /** |
| * Test the {@link ChartRange} class |
| * |
| * @author Geneviève Bastien |
| */ |
| public class ChartRangeTest { |
| |
| private static final @NonNull BigDecimal ZERO = BigDecimal.ZERO; |
| private static final @NonNull BigDecimal ONE = BigDecimal.ONE; |
| private static final @NonNull BigDecimal TEN = BigDecimal.TEN; |
| |
| /** |
| * Test the default constructor |
| */ |
| @Test |
| public void testDefaultConstructor() { |
| ChartRange cr = new ChartRange(); |
| assertEquals(BigDecimal.ZERO, cr.getMinimum()); |
| assertEquals(BigDecimal.ONE, cr.getMaximum()); |
| assertEquals(BigDecimal.ONE, cr.getDelta()); |
| } |
| |
| /** |
| * Test the constructor with parameters |
| */ |
| @Test |
| public void testConstructor() { |
| // Test the constructor with 2 different values |
| ChartRange cr = new ChartRange(ONE, TEN); |
| assertEquals(ONE, cr.getMinimum()); |
| assertEquals(TEN, cr.getMaximum()); |
| assertEquals(new BigDecimal(9), cr.getDelta()); |
| |
| // Test the constructor with 2 identical values |
| cr = new ChartRange(ONE, ONE); |
| assertEquals(BigDecimal.ONE, cr.getMinimum()); |
| assertEquals(new BigDecimal(2), cr.getMaximum()); |
| assertEquals(BigDecimal.ONE, cr.getDelta()); |
| } |
| |
| /** |
| * Test the constructor when the maximum is lower than the minimum |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInvalidConstructor() { |
| ChartRange cr = new ChartRange(ONE, ZERO); |
| assertNotNull(cr); |
| } |
| |
| /** |
| * Test the {@link ChartRange#clamp()} method |
| */ |
| @Test |
| public void testClamp() { |
| BigDecimal minusTwo = new BigDecimal(-2); |
| |
| // Test a range that starts in the positive, that should be clamped to |
| // zero |
| ChartRange cr = new ChartRange(ONE, TEN); |
| assertEquals(ONE, cr.getMinimum()); |
| assertEquals(TEN, cr.getMaximum()); |
| assertEquals(new BigDecimal(9), cr.getDelta()); |
| cr.clamp(); |
| assertEquals(ZERO, cr.getMinimum()); |
| assertEquals(TEN, cr.getMaximum()); |
| assertEquals(TEN, cr.getDelta()); |
| |
| // Test a range in the negative, that should not be affected by the |
| // clamp |
| cr = new ChartRange(minusTwo, ONE); |
| assertEquals(minusTwo, cr.getMinimum()); |
| assertEquals(ONE, cr.getMaximum()); |
| assertEquals(new BigDecimal(3), cr.getDelta()); |
| cr.clamp(); |
| assertEquals(minusTwo, cr.getMinimum()); |
| assertEquals(ONE, cr.getMaximum()); |
| assertEquals(new BigDecimal(3), cr.getDelta()); |
| } |
| } |