TestMissingValue.cc

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/*
 * (C) Copyright 1996-2012 ECMWF.
 * 
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. 
 * In applying this licence, ECMWF does not waive the privileges and immunities 
 * granted to it by virtue of its status as an intergovernmental organisation nor
 * does it submit to any jurisdiction.
 */
 
/// \file TestMissingValue.h
///
/// @author Piotr Kuchta, ECMWF, Feb 2009
 
#include "eckit/sql/SQLTypedefs.h"
 
#include "odc/Comparator.h"
#include "odc/Select.h"
#include "odc/Reader.h"
 
#include "odc/utility/Tracer.h"
#include "odc/Writer.h"
#include "TestCase.h"
 
using namespace std;
using namespace eckit;
using namespace odc;
using namespace odc::utility;
using namespace odc::core;
 
static void setUp()
{
    Tracer t(Log::debug(), "setUp");
 
    odc::Writer<> f("TestMissingValue.odb");
    odc::Writer<>::iterator it = f.begin();
 
    it->setNumberOfColumns(2);
 
    it->setColumn(0, "lat@hdr", odc::api::REAL);
    it->missingValue(0, 1);
 
    eckit::sql::BitfieldDef bfDef;
    bfDef.first.push_back("x");
    bfDef.second.push_back(1);
    bfDef.first.push_back("y");
    bfDef.second.push_back(2);
 
    it->setBitfieldColumn(1, "bf", odc::api::BITFIELD, bfDef);
 
    it->writeHeader();
 
    for (size_t i = 0; i <= 2; i++)
    {
        (*it)[0] = i;
        (*it)[1] = i;
        ++it;
    }
}
 
static void selectIntoSecondFile()
{
    Tracer t(Log::debug(), "selectIntoSecondFile");
 
    const string fileName = "TestMissingValue.odb";
    string sql = "select lat,bf into \"TestMissingValue2.odb\"";
    sql += " from \"" + fileName + "\" ;";
 
    odc::Select f(sql); //, fileName);
    odc::Select::iterator it = f.begin();
 
    ++it; // this is needed to push the second row to the INTO file
    ++it; // this is needed to push the third row to the INTO file
}
 
 
static void test()
{
    selectIntoSecondFile();
 
    odc::Comparator().compare("TestMissingValue.odb", "TestMissingValue2.odb");
 
    {
        odc::Reader f("TestMissingValue.odb");
        odc::Reader::iterator fbegin(f.begin());
        odc::Reader::iterator fend(f.end());
 
        odc::Select s("select * from \"TestMissingValue2.odb\";");
        odc::Select::iterator sbegin(s.begin());
        odc::Select::iterator send(s.end());
 
        odc::Comparator().compare(fbegin, fend, sbegin, send, "TestMissingValue.odb", "SELECT TestMissingValue2.odb");
    }
 
    {
        odc::Reader f("TestMissingValue2.odb");
        odc::Reader::iterator it = f.begin();
        odc::Reader::iterator end = f.end();
 
        Column& column = *it->columns()[0];
        Codec& codec = column.coder();
 
        Log::info() << "test: codec: " << codec << std::endl;   
 
        ASSERT(codec.hasMissing());
        ASSERT(codec.missingValue() == 1);
 
 
        for (; it != end; ++it)
        {
            ASSERT( (*it).missingValue(0) == 1 );
 
            if ( (*it)[0] == 1 )
                ASSERT( (*it).isMissing(0) );
            else
                ASSERT( ! (*it).isMissing(0) );
        }
    }
 
    {
        // Check the isMissing and missingValue API of SelectIterator
        odc::Select s("select * from \"TestMissingValue2.odb\";"); //, fileName);
        odc::Select::iterator i = s.begin();
        odc::Select::iterator e = s.end();
        for (; i != e; ++i)
        {
            ASSERT( (*i).missingValue(0) == 1 );
            ASSERT( (*i).missingValue(1) == 0 );
 
            if ( (*i)[0] == 1 )
                ASSERT( (*i).isMissing(0) );
            else
                ASSERT( ! (*i).isMissing(0) );
 
            // For Bitfields missing value by default equals 0
            if ( (*i)[1] == 0 )
                ASSERT( (*i).isMissing(1) );
            else
                ASSERT( ! (*i).isMissing(1) );
        }
    }
 
}
 
 
static void tearDown() { }
 
 
 
SIMPLE_TEST(MissingValue)