Package org.apache.hadoop.hive.ql.parse

Source Code of org.apache.hadoop.hive.ql.parse.TestSemanticAnalyzer

/**
* 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,
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*/
package org.apache.hadoop.hive.ql.parse;

import static org.junit.Assert.*;

import java.sql.Date;
import java.util.HashMap;
import java.util.Map;

import org.apache.hadoop.hive.serde2.io.DateWritable;
import org.junit.Test;

public class TestSemanticAnalyzer {

  @Test
  public void testNormalizeColSpec() throws Exception {
    // Hive normalizes partition spec for dates to yyyy-mm-dd format. Some versions of Java will
    // accept other formats for Date.valueOf, e.g. yyyy-m-d, and who knows what else in the future;
    // some will not accept other formats, so we cannot test normalization with them - type check
    // will fail before it can ever happen. Thus, test in isolation.
    checkNormalization("date", "2010-01-01", "2010-01-01", Date.valueOf("2010-01-01"));
    checkNormalization("date", "2010-1-01", "2010-01-01", Date.valueOf("2010-01-01"));
    checkNormalization("date", "2010-1-1", "2010-01-01", Date.valueOf("2010-01-01"));
    checkNormalization("string", "2010-1-1", "2010-1-1", "2010-1-1");

    try {
      checkNormalization("date", "foo", "", "foo"); // Bad format.
      fail("should throw");
    } catch (SemanticException ex) {
    }

    try {
      checkNormalization("date", "2010-01-01", "2010-01-01", "2010-01-01"); // Bad value type.
      fail("should throw");
    } catch (SemanticException ex) {
    }
  }


  public void checkNormalization(String colType, String originalColSpec,
      String result, Object colValue) throws SemanticException {
    final String colName = "col";
    Map<String, String> partSpec = new HashMap<String, String>();
    partSpec.put(colName, originalColSpec);
    BaseSemanticAnalyzer.normalizeColSpec(partSpec, colName, colType, originalColSpec, colValue);
    assertEquals(result, partSpec.get(colName));
    if (colValue instanceof Date) {
      DateWritable dw = new DateWritable((Date)colValue);
      BaseSemanticAnalyzer.normalizeColSpec(partSpec, colName, colType, originalColSpec, dw);
      assertEquals(result, partSpec.get(colName));
    }
  }
}
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