<commit_before>package io.spark.ddf.etl;


import com.google.common.collect.Lists;
import io.ddf.DDF;
import io.ddf.DDFManager;
import io.ddf.analytics.Summary;
import io.ddf.content.Schema;
import io.ddf.content.Schema.ColumnType;
import io.ddf.etl.TransformationHandler;
import io.ddf.exception.DDFException;
import io.spark.ddf.BaseTest;
import org.junit.*;
import java.util.List;

public class TransformationHandlerTest extends BaseTest {
  private DDF ddf;


  @Before
  public void setUp() throws Exception {
    createTableAirline();
    ddf = manager.sql2ddf("select year, month, dayofweek, deptime, arrtime, distance, arrdelay, depdelay from airline");
  }

  @Test
  public void testTransformNativeRserve() throws DDFException {
    DDF newddf = ddf.Transform.transformNativeRserve("newcol = deptime / arrtime");
    System.out.println("name " + ddf.getName());
    System.out.println("newname " + newddf.getName());
    List<String> res = ddf.VIEWS.head(10);

    //Assert.assertFalse(ddf.getName().equals(newddf.getName()));
    Assert.assertNotNull(newddf);
    Assert.assertEquals("newcol", newddf.getColumnName(8));
    Assert.assertEquals(10, res.size());
  }

  @Test
  public void testTransformScaleMinMax() throws DDFException {
    DDF newddf0 = ddf.Transform.transformScaleMinMax();
    Summary[] summaryArr = newddf0.getSummary();
    Assert.assertTrue(summaryArr[0].min() < 1);
    Assert.assertTrue(summaryArr[0].max() == 1);

  }

  @Test
  public void testTransformScaleStandard() throws DDFException {
    DDF newddf1 = ddf.Transform.transformScaleStandard();
    Assert.assertEquals(31, newddf1.getNumRows());
    Assert.assertEquals(8, newddf1.getSummary().length);
  }

  @Test
  public void testTransformMapReduceNative() throws DDFException {
    // aggregate sum of month group by year

    String mapFuncDef = "function(part) { keyval(key=part$year, val=part$month) }";
    String reduceFuncDef = "function(key, vv) { keyval.row(key=key, val=sum(vv)) }";
    DDF newddf = ddf.Transform.transformMapReduceNative(mapFuncDef, reduceFuncDef);
    System.out.println("name " + ddf.getName());
    System.out.println("newname " + newddf.getName());
    Assert.assertNotNull(newddf);
    Assert.assertTrue(newddf.getColumnName(0).equals("key"));
    Assert.assertTrue(newddf.getColumnName(1).equals("val"));

    Assert.assertTrue(newddf.getSchemaHandler().getColumns().get(0).getType() == ColumnType.STRING);
    Assert.assertTrue(newddf.getSchemaHandler().getColumns().get(1).getType() == ColumnType.INT);
  }

  @Test<commit_msg>ignore testTransformMapReduceNative<commit_after>package io.spark.ddf.etl;


import com.google.common.collect.Lists;
import io.ddf.DDF;
import io.ddf.DDFManager;
import io.ddf.analytics.Summary;
import io.ddf.content.Schema;
import io.ddf.content.Schema.ColumnType;
import io.ddf.etl.TransformationHandler;
import io.ddf.exception.DDFException;
import io.spark.ddf.BaseTest;
import org.junit.*;
import java.util.List;

public class TransformationHandlerTest extends BaseTest {
  private DDF ddf;


  @Before
  public void setUp() throws Exception {
    createTableAirline();
    ddf = manager.sql2ddf("select year, month, dayofweek, deptime, arrtime, distance, arrdelay, depdelay from airline");
  }

  @Test
  public void testTransformNativeRserve() throws DDFException {
    DDF newddf = ddf.Transform.transformNativeRserve("newcol = deptime / arrtime");
    System.out.println("name " + ddf.getName());
    System.out.println("newname " + newddf.getName());
    List<String> res = ddf.VIEWS.head(10);

    //Assert.assertFalse(ddf.getName().equals(newddf.getName()));
    Assert.assertNotNull(newddf);
    Assert.assertEquals("newcol", newddf.getColumnName(8));
    Assert.assertEquals(10, res.size());
  }

  @Test
  public void testTransformScaleMinMax() throws DDFException {
    DDF newddf0 = ddf.Transform.transformScaleMinMax();
    Summary[] summaryArr = newddf0.getSummary();
    Assert.assertTrue(summaryArr[0].min() < 1);
    Assert.assertTrue(summaryArr[0].max() == 1);

  }

  @Test
  public void testTransformScaleStandard() throws DDFException {
    DDF newddf1 = ddf.Transform.transformScaleStandard();
    Assert.assertEquals(31, newddf1.getNumRows());
    Assert.assertEquals(8, newddf1.getSummary().length);
  }

  @Ignore
  public void testTransformMapReduceNative() throws DDFException {
    // aggregate sum of month group by year

    String mapFuncDef = "function(part) { keyval(key=part$year, val=part$month) }";
    String reduceFuncDef = "function(key, vv) { keyval.row(key=key, val=sum(vv)) }";
    DDF newddf = ddf.Transform.transformMapReduceNative(mapFuncDef, reduceFuncDef);
    System.out.println("name " + ddf.getName());
    System.out.println("newname " + newddf.getName());
    Assert.assertNotNull(newddf);
    Assert.assertTrue(newddf.getColumnName(0).equals("key"));
    Assert.assertTrue(newddf.getColumnName(1).equals("val"));

    Assert.assertTrue(newddf.getSchemaHandler().getColumns().get(0).getType() == ColumnType.STRING);
    Assert.assertTrue(newddf.getSchemaHandler().getColumns().get(1).getType() == ColumnType.INT);
  }

  @Test
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