| /** |
| * 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.crunch.lambda; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.apache.crunch.Pair; |
| import org.apache.crunch.impl.mem.MemPipeline; |
| import org.junit.Test; |
| |
| import static org.apache.crunch.lambda.TestCommon.assertCollectionOf; |
| import static org.apache.crunch.types.avro.Avros.*; |
| |
| |
| public class LTableTest { |
| |
| private LTable<String, Integer> lt1 = Lambda.wrap(MemPipeline.typedTableOf(tableOf(strings(), ints()), |
| "a", 2, |
| "a", 3, |
| "b", 5, |
| "c", 7, |
| "c", 11, |
| "c", 13, |
| "c", 13)); |
| |
| private LTable<String, Long> lt2 = Lambda.wrap(MemPipeline.typedTableOf(tableOf(strings(), longs()), |
| "a", 101L, |
| "b", 102L, |
| "c", 103L |
| )); |
| |
| @Test |
| public void testKeys() throws Exception { |
| assertCollectionOf(lt1.keys(), "a", "a", "b", "c", "c", "c", "c"); |
| } |
| |
| @Test |
| public void testValues() throws Exception { |
| assertCollectionOf(lt2.values(), 101L, 102L, 103L); |
| } |
| |
| @Test |
| public void testMapKeys() throws Exception { |
| assertCollectionOf(lt2.mapKeys(String::toUpperCase, strings()), |
| Pair.of("A", 101L), |
| Pair.of("B", 102L), |
| Pair.of("C", 103L) |
| ); |
| } |
| |
| @Test |
| public void testMapValues() throws Exception { |
| assertCollectionOf(lt2.mapValues(v -> v * 2, longs()), |
| Pair.of("a", 202L), |
| Pair.of("b", 204L), |
| Pair.of("c", 206L) |
| ); |
| } |
| |
| @Test |
| public void testJoin() throws Exception { |
| assertCollectionOf(lt1.join(lt2).values(), |
| Pair.of(2, 101L), |
| Pair.of(3, 101L), |
| Pair.of(5, 102L), |
| Pair.of(7, 103L), |
| Pair.of(11, 103L), |
| Pair.of(13, 103L), |
| Pair.of(13, 103L)); |
| } |
| |
| @Test |
| public void testCogroup() throws Exception { |
| assertCollectionOf(lt1.cogroup(lt2).values(), |
| Pair.of(ImmutableList.of(2, 3), ImmutableList.of(101L)), |
| Pair.of(ImmutableList.of(5), ImmutableList.of(102L)), |
| Pair.of(ImmutableList.of(7, 11, 13, 13), ImmutableList.of(103L)) |
| ); |
| } |
| } |