| /** |
| * 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.scrunch |
| |
| import org.apache.crunch.test.CrunchTestSupport |
| |
| import org.scalatest.junit.JUnitSuite |
| import _root_.org.junit.Assert._ |
| import _root_.org.junit.Test |
| |
| /** |
| * Test that verifies that a Scala PipelineApp can properly send some side data as part of a |
| * function closure. |
| */ |
| class PipelineClosureAppTest extends CrunchSuite { |
| |
| /** |
| * A simple pipeline application that divides each element of a PCollection of numbers by |
| * 10. The PCollection of numbers used as input is just the number 10 repeated 100 times. |
| * Thus the resulting PCollection should be the number 1 repeated 100 times. |
| */ |
| object Divider extends PipelineApp { |
| |
| /** |
| * Runs the Pipeline for this test and verifies it has the desired effect of transforming a |
| * PCollection of 10s into a PCollection of 1s. |
| */ |
| override def run(args: Array[String]) { |
| val divisor = 10 |
| val tens = read(from.textFile(args(0))) |
| val ones = tens.map { n => Integer.valueOf(n) / divisor } |
| val countOfOnes = ones.count().materializeToMap() |
| assertEquals(100, countOfOnes(1)) |
| } |
| } |
| |
| @Test def run { |
| val args = new Array[String](1) |
| args(0) = tempDir.copyResourceFileName("tens.txt") |
| tempDir.overridePathProperties(Divider.configuration) |
| Divider.main(args) |
| } |
| } |