| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * |
| * 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.test.internal.performance.eval; |
| |
| import org.eclipse.test.internal.performance.PerformanceTestPlugin; |
| import org.eclipse.test.internal.performance.data.Dim; |
| |
| /** |
| * @since 3.1 |
| */ |
| public class RelativeBandChecker extends AssertChecker { |
| |
| private final double fLowerBand; |
| private final double fUpperBand; |
| |
| public RelativeBandChecker(Dim dimension, double lowerBand, double upperBand) { |
| super(dimension); |
| fLowerBand = lowerBand; |
| fUpperBand = upperBand; |
| } |
| |
| @Override |
| public boolean test(StatisticsSession reference, StatisticsSession measured, StringBuffer message) { |
| Dim dimension = getDimension(); |
| |
| if (!measured.contains(dimension)) { |
| PerformanceTestPlugin.logWarning("collected data provides no dimension '" + dimension.getName() + '\''); //$NON-NLS-1$ |
| return true; |
| } |
| if (!reference.contains(dimension)) { |
| PerformanceTestPlugin.logWarning("reference data provides no dimension '" + dimension.getName() + '\''); //$NON-NLS-1$ |
| return true; |
| } |
| |
| double actual = measured.getAverage(dimension); |
| double test = reference.getAverage(dimension); |
| |
| if (test < 0.001 && test > -0.001) { |
| // we don't fail for reference value of zero |
| PerformanceTestPlugin.logWarning("ref value for '" + dimension.getName() + "' is too small"); //$NON-NLS-1$ //$NON-NLS-2$ |
| return true; |
| } |
| if (actual < 0) { |
| // we don't fail for negative values |
| PerformanceTestPlugin.logWarning("actual value for '" + dimension.getName() + "' is negative"); //$NON-NLS-1$ //$NON-NLS-2$ |
| return true; |
| } |
| |
| if (actual > fUpperBand * test || actual < fLowerBand * test) { |
| message.append('\n' |
| + dimension.getName() |
| + ": " + dimension.getDisplayValue(actual) + " is not within [" + Math.round(fLowerBand * 100) + "%, " + Math.round(fUpperBand * 100) + "%] of " + dimension.getDisplayValue(test)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ |
| return false; |
| } |
| return true; |
| } |
| } |