| /* |
| * 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.wayang.spark.operators; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.LinkedList; |
| import java.util.List; |
| import org.apache.wayang.core.function.MapPartitionsDescriptor; |
| import org.apache.wayang.core.platform.ChannelInstance; |
| import org.apache.wayang.spark.channels.RddChannel; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| /** |
| * Test suite for {@link SparkFilterOperator}. |
| */ |
| public class SparkMapPartitionsOperatorTest extends SparkOperatorTestBase { |
| |
| @Test |
| public void testExecution() { |
| // Prepare test data. |
| RddChannel.Instance input = this.createRddChannelInstance(Arrays.asList(0, 1, 1, 2, 6)); |
| RddChannel.Instance output = this.createRddChannelInstance(); |
| |
| // Create the mapPartitions operator. |
| SparkMapPartitionsOperator<Integer, Integer> mapPartitionsOperator = |
| new SparkMapPartitionsOperator<>( |
| new MapPartitionsDescriptor<>(items -> { |
| Collection<Integer> result = new LinkedList<>(); |
| for (Integer item : items) { |
| result.add(item + 1); |
| } |
| return result; |
| }, Integer.class, Integer.class) |
| ); |
| |
| // Set up the ChannelInstances. |
| ChannelInstance[] inputs = new ChannelInstance[]{input}; |
| ChannelInstance[] outputs = new ChannelInstance[]{output}; |
| |
| // Execute. |
| this.evaluate(mapPartitionsOperator, inputs, outputs); |
| |
| // Verify the outcome. |
| final List<Integer> result = output.<Integer>provideRdd().collect(); |
| Assert.assertEquals(5, result.size()); |
| Assert.assertEquals(Arrays.asList(1, 2, 2, 3, 7), result); |
| |
| } |
| |
| } |