| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.ambari.metrics.adservice.seriesgenerator; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class MetricSeriesGeneratorTest { |
| |
| @Test |
| public void testUniformSeries() { |
| |
| UniformMetricSeries metricSeries = new UniformMetricSeries(5, 0.2, 0, 0, 0, true); |
| Assert.assertTrue(metricSeries.nextValue() <= 6 && metricSeries.nextValue() >= 4); |
| |
| double[] uniformSeries = MetricSeriesGeneratorFactory.createUniformSeries(50, 10, 0.2, 0.1, 0.4, 0.5, true); |
| Assert.assertTrue(uniformSeries.length == 50); |
| |
| for (int i = 0; i < uniformSeries.length; i++) { |
| double value = uniformSeries[i]; |
| |
| if (value > 10 * 1.2) { |
| Assert.assertTrue(value >= 10 * 1.4 && value <= 10 * 1.6); |
| } else { |
| Assert.assertTrue(value >= 10 * 0.8 && value <= 10 * 1.2); |
| } |
| } |
| } |
| |
| @Test |
| public void testNormalSeries() { |
| NormalMetricSeries metricSeries = new NormalMetricSeries(0, 1, 0, 0, 0, true); |
| Assert.assertTrue(metricSeries.nextValue() <= 3 && metricSeries.nextValue() >= -3); |
| } |
| |
| @Test |
| public void testMonotonicSeries() { |
| |
| MonotonicMetricSeries metricSeries = new MonotonicMetricSeries(0, 0.5, 0, 0, 0, 0, true); |
| Assert.assertTrue(metricSeries.nextValue() == 0); |
| Assert.assertTrue(metricSeries.nextValue() == 0.5); |
| |
| double[] incSeries = MetricSeriesGeneratorFactory.createMonotonicSeries(20, 0, 0.5, 0, 0, 0, 0, true); |
| Assert.assertTrue(incSeries.length == 20); |
| for (int i = 0; i < incSeries.length; i++) { |
| Assert.assertTrue(incSeries[i] == i * 0.5); |
| } |
| } |
| |
| @Test |
| public void testDualBandSeries() { |
| double[] dualBandSeries = MetricSeriesGeneratorFactory.getDualBandSeries(30, 5, 0.2, 5, 15, 0.3, 4); |
| Assert.assertTrue(dualBandSeries[0] >= 4 && dualBandSeries[0] <= 6); |
| Assert.assertTrue(dualBandSeries[4] >= 4 && dualBandSeries[4] <= 6); |
| Assert.assertTrue(dualBandSeries[5] >= 10.5 && dualBandSeries[5] <= 19.5); |
| Assert.assertTrue(dualBandSeries[8] >= 10.5 && dualBandSeries[8] <= 19.5); |
| Assert.assertTrue(dualBandSeries[9] >= 4 && dualBandSeries[9] <= 6); |
| } |
| |
| @Test |
| public void testStepSeries() { |
| double[] stepSeries = MetricSeriesGeneratorFactory.getStepFunctionSeries(30, 10, 0, 0, 5, 5, 0.5, true); |
| |
| Assert.assertTrue(stepSeries[0] == 10); |
| Assert.assertTrue(stepSeries[4] == 10); |
| |
| Assert.assertTrue(stepSeries[5] == 10*1.5); |
| Assert.assertTrue(stepSeries[9] == 10*1.5); |
| |
| Assert.assertTrue(stepSeries[10] == 10*1.5*1.5); |
| Assert.assertTrue(stepSeries[14] == 10*1.5*1.5); |
| } |
| |
| @Test |
| public void testSteadySeriesWithTurbulence() { |
| double[] steadySeriesWithTurbulence = MetricSeriesGeneratorFactory.getSteadySeriesWithTurbulentPeriod(30, 5, 0, 1, 1, 5, 1); |
| |
| int count = 0; |
| for (int i = 0; i < steadySeriesWithTurbulence.length; i++) { |
| if (steadySeriesWithTurbulence[i] == 10) { |
| count++; |
| } |
| } |
| Assert.assertTrue(count == 5); |
| } |
| } |