ColumnBasedRecordComparatorTest.java

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 * 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
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package com.aliyun.odps.mapred.bridge.type;

import static org.junit.Assert.assertTrue;

import org.junit.Test;

import com.aliyun.odps.Column;
import com.aliyun.odps.OdpsType;
import com.aliyun.odps.io.BooleanWritable;
import com.aliyun.odps.io.DatetimeWritable;
import com.aliyun.odps.io.DoubleWritable;
import com.aliyun.odps.io.LongWritable;
import com.aliyun.odps.io.Text;

public class ColumnBasedRecordComparatorTest {

  @Test
  public void testEmptyColumnlist() {
    Column[] schema = new Column[]{new Column("col1", OdpsType.BIGINT),
                                   new Column("col2", OdpsType.BOOLEAN),
                                   new Column("col3", OdpsType.DOUBLE),
                                   new Column("col4", OdpsType.STRING),
                                   new Column("col5", OdpsType.DATETIME)};

    ColumnBasedRecordComparator comp = new ColumnBasedRecordComparator(new String[0], schema);

    assertTrue(comp.compare(new Object[]{null, null, null, null, null}, new Object[]{
        new LongWritable(0), new BooleanWritable(true), new DoubleWritable(0.0), new Text(""),
        new DatetimeWritable(0)}) == 0);

    assertTrue(comp.compare(new Object[]{new LongWritable(0), new BooleanWritable(true),
                                         new DoubleWritable(0.0), new Text(""),
                                         new DatetimeWritable(0)}, new Object[]{null,
                                                                                null, null, null,
                                                                                null}) == 0);

    assertTrue(comp.compare(new Object[]{null, null, null, null, null}, new Object[]{null,
                                                                                     null, null,
                                                                                     null, null})
               == 0);
  }
}