org.apache.hadoop.hive.llap.TestRow.java Source code

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/*
 * 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.hadoop.hive.llap;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import org.apache.commons.lang.RandomStringUtils;

import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory;

import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import static org.junit.Assert.*;

public class TestRow {

    @Test
    public void testUsage() {
        Schema schema = createTestSchema();
        Row row = new Row(schema);

        Random rand = new Random();
        int iterations = 100;
        for (int idx = 0; idx < iterations; ++idx) {
            // Set the row values
            boolean isNullCol0 = (rand.nextDouble() <= 0.25);
            String col0 = RandomStringUtils.random(10);
            row.setValue(0, isNullCol0 ? null : col0);

            boolean isNullCol1 = (rand.nextDouble() <= 0.25);
            Integer col1 = Integer.valueOf(rand.nextInt());
            row.setValue(1, isNullCol1 ? null : col1);

            // Validate the row values
            if (isNullCol0) {
                assertTrue(row.getValue(0) == null);
                assertTrue(row.getValue("col0") == null);
            } else {
                assertTrue(row.getValue(0) != null);
                assertEquals(col0, row.getValue(0));
                assertEquals(col0, row.getValue("col0"));
            }

            if (isNullCol1) {
                assertTrue(row.getValue(1) == null);
                assertTrue(row.getValue("col1") == null);
            } else {
                assertTrue(row.getValue(1) != null);
                assertEquals(col1, row.getValue(1));
                assertEquals(col1, row.getValue("col1"));
            }
        }
    }

    private Schema createTestSchema() {
        List<FieldDesc> colDescs = new ArrayList<FieldDesc>();

        colDescs.add(new FieldDesc("col0", TypeInfoFactory.stringTypeInfo));

        colDescs.add(new FieldDesc("col1", TypeInfoFactory.intTypeInfo));

        Schema schema = new Schema(colDescs);
        return schema;
    }
}