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 * 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
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 * KIND, either express or implied.  See the License for the
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package org.apache.iotdb.hive;

import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector;
import org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo;
import org.apache.hadoop.hive.serde2.typeinfo.TypeInfo;
import org.apache.hadoop.io.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import static org.junit.Assert.*;

public class TsFileDeserializerTest {

  private TsFileDeserializer tsFileDeserializer;
  private List<String> columnNames;
  private List<TypeInfo> columnTypes;

  public void setUp() {
    tsFileDeserializer = new TsFileDeserializer();
    columnNames = Arrays.asList("time_stamp", "sensor_1");
    columnTypes = new ArrayList<>();
    PrimitiveTypeInfo typeInfo1 = new PrimitiveTypeInfo();
    PrimitiveTypeInfo typeInfo2 = new PrimitiveTypeInfo();

  public void tearDown() {
    tsFileDeserializer = null;
    columnNames = null;
    columnTypes = null;

  public void testDeserialize() {
    tsFileDeserializer = new TsFileDeserializer();
    assertEquals(PrimitiveObjectInspector.PrimitiveCategory.LONG, ((PrimitiveTypeInfo)columnTypes.get(0)).getPrimitiveCategory());

    Writable worryWritable1 = new Text();
    try {
      tsFileDeserializer.deserialize(columnNames, columnTypes, worryWritable1, "device_1");
      fail("Expect a TsFileSerDeException to be thrown!");
    } catch (TsFileSerDeException e) {
      assertEquals("Expecting a MapWritable", e.getMessage());

    MapWritable worryWritable2 = new MapWritable();
    worryWritable2.put(new Text("device_id"), new Text("device_2"));
    worryWritable2.put(new Text("time_stamp"), new LongWritable(1L));
    worryWritable2.put(new Text("sensor_1"), new LongWritable(1L));
    try {
      assertNull(tsFileDeserializer.deserialize(columnNames, columnTypes, worryWritable2, "device_1"));
    } catch (TsFileSerDeException e) {
      fail("Don't expect a TsFileSerDeException to be Thrown!");

    MapWritable worryWritable3 = new MapWritable();
    worryWritable3.put(new Text("device_id"), new Text("device_1"));
    worryWritable3.put(new Text("time_stamp"), new LongWritable(1L));
    worryWritable3.put(new Text("sensor_1"), new IntWritable(1));
    try {
      tsFileDeserializer.deserialize(columnNames, columnTypes, worryWritable3, "device_1");
      fail("Expect a TsFileSerDeException to be thrown!");
    } catch (TsFileSerDeException e) {
      assertEquals("Unexpected data type: "
                      + worryWritable3.get(new Text("sensor_1")).getClass().getName()
                      + " for Date TypeInfo: "
                      + PrimitiveObjectInspector.PrimitiveCategory.LONG,

    MapWritable writable = new MapWritable();
    writable.put(new Text("device_id"), new Text("device_1"));
    writable.put(new Text("time_stamp"), new LongWritable(1L));
    writable.put(new Text("sensor_1"), new LongWritable(1000000L));
    try {
      Object result = tsFileDeserializer.deserialize(columnNames, columnTypes, writable, "device_1");
      assertTrue(result instanceof List);
      List<Object> row = (List<Object>) result;
      assertEquals(columnNames.size(), row.size());
      assertEquals(1L, row.get(0));
      assertEquals(1000000L, row.get(1));
    } catch (TsFileSerDeException e) {
      fail("Don't expect a TsFileSerDeException to be Thrown!");