| /* |
| * 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.flink.operators; |
| |
| import org.apache.wayang.core.platform.ChannelInstance; |
| import org.apache.wayang.core.types.DataSetType; |
| import org.apache.wayang.flink.channels.DataSetChannel; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import javax.xml.crypto.Data; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| /** |
| * Test suite for {@link FlinkDistinctOperator}. |
| */ |
| //The test assert error expected 4, actual 1 |
| public class FlinkDistinctOperatorTest extends FlinkOperatorTestBase{ |
| |
| @Test |
| public void testExecution() throws Exception { |
| // Prepare test data. |
| List<Integer> inputData = Arrays.asList(0, 1, 1, 6, 2, 2, 6, 6); |
| |
| // Build the distinct operator. |
| FlinkDistinctOperator<Integer> distinctOperator = |
| new FlinkDistinctOperator<>( |
| DataSetType.createDefaultUnchecked(Integer.class) |
| ); |
| |
| // Set up the ChannelInstances. |
| final ChannelInstance[] inputs = new ChannelInstance[]{this.createDataSetChannelInstance(inputData)}; |
| final ChannelInstance[] outputs = new ChannelInstance[]{this.createDataSetChannelInstance()}; |
| |
| // Execute. |
| this.evaluate(distinctOperator, inputs, outputs); |
| |
| // Verify the outcome. |
| final List<Integer> result = ((DataSetChannel.Instance) outputs[0]).<Integer>provideDataSet().collect(); |
| for(Object e : result){ |
| System.out.println(e); |
| } |
| Assert.assertEquals(4, result.size()); |
| Assert.assertEquals(Arrays.asList(0, 1, 6, 2), result); |
| |
| } |
| } |