wangxianghu commented on a change in pull request #2161: URL: https://github.com/apache/hudi/pull/2161#discussion_r502731487
########## File path: hudi-client/hudi-flink-client/src/test/java/org/apache/hudi/client/common/TestHoodieFlinkEngineContext.java ########## @@ -0,0 +1,115 @@ +/* + * 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.hudi.client.common; + +import org.apache.hudi.common.util.Option; +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Test; +import scala.Tuple2; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collection; +import java.util.List; +import java.util.Map; +import java.util.function.Supplier; + +/** + * Unit test against HoodieFlinkEngineContext. + */ +public class TestHoodieFlinkEngineContext { + private HoodieFlinkEngineContext context; + + @BeforeEach + public void init() { + context = new HoodieFlinkEngineContext(new DummyTaskContextSupplier()); + } + + @Test + public void testMap() { + List<Integer> mapList = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); + List<Integer> result = context.map(mapList, x -> x + 1, 2); + result.removeAll(mapList); + + Assertions.assertEquals(1, result.size()); + Assertions.assertEquals(11, result.get(0)); + } + + @Test + public void testFlatMap() { + List<String> list1 = Arrays.asList("a", "b", "c"); + List<String> list2 = Arrays.asList("d", "e", "f"); + List<String> list3 = Arrays.asList("g", "h", "i"); + + List<List<String>> inputList = new ArrayList<>(); + inputList.add(list1); + inputList.add(list2); + inputList.add(list3); + + List<String> result = context.flatMap(inputList, Collection::stream, 2); + + Assertions.assertEquals(9, result.size()); + } + + @Test + public void testForeach() { + List<Integer> mapList = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); + List<Integer> result = new ArrayList<>(10); + context.foreach(mapList, result::add, 2); + + Assertions.assertEquals(result.size(), mapList.size()); + Assertions.assertTrue(result.containsAll(mapList)); + } + + @Test + public void testMapToPair() { + List<String> mapList = Arrays.asList("hudi_flink", "hudi_spark"); + + Map<String, String> resultMap = context.mapToPair(mapList, x -> { + String[] splits = x.split("_"); + return Tuple2.apply(splits[0], splits[1]); + }, 2); + + Assertions.assertEquals("spark", resultMap.get("hudi")); Review comment: > here would always get `spark` instead of `flink`? It should be. List is ordered. `Assertions.assertNotNull(resultMap.get("hudi"))` should be better understood ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
