| /* |
| * 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 org.junit.Test; |
| import org.apache.wayang.core.function.TransformationDescriptor; |
| import org.apache.wayang.core.platform.ChannelInstance; |
| import org.apache.wayang.spark.channels.RddChannel; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.Arrays; |
| |
| /** |
| * Test suite for {@link SparkTextFileSink}. |
| */ |
| public class SparkTextFileSinkTest extends SparkOperatorTestBase { |
| |
| @Test |
| public void testWritingDoesNotFail() throws IOException { |
| // Prepare the sink. |
| Path tempDir = Files.createTempDirectory("wayang-spark"); |
| tempDir.toFile().deleteOnExit(); |
| Path targetFile = tempDir.resolve("testWritingDoesNotFail"); |
| RddChannel.Instance input = this.createRddChannelInstance(Arrays.asList(1.123f, -0.1f, 3f)); |
| final SparkTextFileSink<Float> sink = new SparkTextFileSink<>( |
| targetFile.toUri().toString(), |
| new TransformationDescriptor<>( |
| f -> String.format("%.2f", f), |
| Float.class, String.class |
| ) |
| ); |
| |
| // Set up the ChannelInstances. |
| final ChannelInstance[] inputs = new ChannelInstance[]{input}; |
| final ChannelInstance[] outputs = new ChannelInstance[]{}; |
| |
| // Execute. |
| this.evaluate(sink, inputs, outputs); |
| } |
| |
| } |