flink-tests/src/test/java/org/apache/flink/test/example/scala/WordCountITCase.java

/*
 * 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.flink.test.example.scala;

import org.apache.flink.examples.scala.wordcount.WordCount;
import org.apache.flink.test.testdata.WordCountData;
import org.apache.flink.test.util.JavaProgramTestBase;

/** Test {@link WordCount}. */
public class WordCountITCase extends JavaProgramTestBase {

    protected String textPath;
    protected String resultPath;

    @Override
    protected void preSubmit() throws Exception {
        textPath = createTempFile("text.txt", WordCountData.TEXT);
        resultPath = getTempDirPath("result");
    }

    @Override
    protected void postSubmit() throws Exception {
        compareResultsByLinesInMemory(WordCountData.COUNTS, resultPath);
    }

    @Override
    protected void testProgram() throws Exception {
        WordCount.main(
                new String[] {
                    "--input", textPath,
                    "--output", resultPath
                });
    }
}