TestDataConverterDriver.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 com.cloudera.knittingboar.conf.cmdline;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;

import org.apache.commons.io.FileUtils;

import junit.framework.TestCase;

import com.cloudera.knittingboar.utils.DataUtils;

public class TestDataConverterDriver extends TestCase {

  public void testBasics() throws Exception {
    File twentyNewsGroupDataDir = DataUtils.getTwentyNewsGroupDir();   
    File inputDir = new File(twentyNewsGroupDataDir, "20news-bydate-train");
    File outputDir = new File(twentyNewsGroupDataDir, "20news-bydate-converted");
    FileUtils.deleteQuietly(outputDir);
    if(!(outputDir.isDirectory() || outputDir.mkdir())) {
      throw new IOException("Could not mkdir " + outputDir);
    }
    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw, true);
    String[] params = new String[]{
        "--input", inputDir.getAbsolutePath() + "/",
        "--output", outputDir.getAbsolutePath() + "/",
        "--recordsPerBlock", "2000"
    };    
    DataConverterCmdLineDriver.mainToOutput(params, pw);
    String trainOut = sw.toString();
    assertTrue(trainOut.contains("Total Records Converted: 11314"));
    File[] files = outputDir.listFiles();
    for (int x = 0; x < files.length; x++ ) {
      System.out.println(files[x].toString());
    }
    assertEquals( 6, files.length );
  }
}