| /** |
| * 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 com.datatorrent.lib.statistics; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import com.datatorrent.lib.testbench.CollectorTestSink; |
| import com.datatorrent.lib.util.TestUtils; |
| |
| /** |
| * Functional Test for {@link com.datatorrent.lib.statistics.WeightedMeanOperator}. <br> |
| */ |
| public class ModeOperatorTest |
| { |
| @Test |
| public void testWeightedMean() |
| { |
| ModeOperator<Double> oper = new ModeOperator<Double>(); |
| CollectorTestSink<Double> sink = new CollectorTestSink<Double>(); |
| TestUtils.setSink(oper.mode, sink); |
| |
| oper.setup(null); |
| oper.beginWindow(0); |
| oper.data.process(1.0); |
| oper.data.process(7.0); |
| oper.data.process(3.0); |
| oper.data.process(9.0); |
| oper.data.process(7.0); |
| oper.data.process(7.0); |
| oper.endWindow(); |
| |
| Assert.assertEquals("Must be one tuple in sink", sink.collectedTuples.size(), 1); |
| Assert.assertTrue("Median value", sink.collectedTuples.get(0) == 7.0); |
| } |
| } |