TestInt16_MissingCodec.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 UnitTest.h
///
/// @author Piotr Kuchta, ECMWF, Jan 2010
 
#include "eckit/log/Timer.h"
#include "odc/core/MetaData.h"
#include "odc/Reader.h"
 
#include "odc/Writer.h"
#include "MockReader.h"
#include "TestCase.h"
 
using namespace std;
using namespace eckit;
using namespace odc;
 
 
class MockReaderIterator3 
{
public:
    MockReaderIterator3()
    : noMore_(false), refCount_(0), columns_(1), nRows_(0), min_(23), data_(0)
    {
        core::Column* col = columns_[0] = new core::Column(columns_);
        ASSERT(col);
 
        col->name("column_name"); 
        col->type<core::SameByteOrder>(odc::api::INTEGER);
        col->hasMissing(true);
        next();
    }
 
    core::MetaData& columns() { return columns_; }
 
    bool isNewDataset() { return false; } 
    double* data() { return &data_; }
    double& data(size_t) { return data_; }
 
    //MockReaderIterator3& operator++() { next(); return *this; }
 
    const MockReaderIterator3& end() { return *reinterpret_cast<MockReaderIterator3*>(0); }
 
    bool next()
    {
        if (noMore_) return noMore_;
        switch (nRows_++)
        {
            case 0:
                data_ = min_ + 0;
                break;
            case 1:
                data_ = min_ + (0xffff - 1) / 2;
                break;
            case 2:
                data_ = min_ + (0xffff - 1);
                break;
            case 3:
                data_ = columns_[0]->coder().missingValue();
                break;
            default:
                return !(noMore_ = true);
                break;
        }
        return true;
    }
    
    bool noMore_;
    int refCount_;
 
private:
    core::MetaData columns_;
    unsigned int nRows_;
    double min_;
    double data_;
};
 
static void setUp()
{
    Timer t("Writing test_int16_missing.odb");
    odc::Writer<> oda("test_int16_missing.odb");
 
    typedef tool::MockReader<MockReaderIterator3> M;
    M reader;
    M::iterator b = reader.begin();
    const M::iterator e = reader.end();
 
    odc::Writer<>::iterator outit = oda.begin();
    outit->pass1(b, e);
}
 
static void test()
{
    odc::Reader oda("test_int16_missing.odb");
    odc::Reader::iterator it = oda.begin();
    odc::Reader::iterator end = oda.end();
 
    typedef tool::MockReader<MockReaderIterator3> M;
    M reader;
    M::iterator originalIt = reader.begin();
    const M::iterator originalItEnd = reader.end();
 
    Log::info() << it->columns() << std::endl;
    
    for ( ; it != end; ++it, ++originalIt)
    {
        Log::info() << "it[0] = " << (*it)[0] << ", originalIt.data()[0]=" << (*originalIt)[0] << std::endl;
        ASSERT((*it)[0] == (*originalIt)[0]);
    }
 
    core::Codec& coder ( it->columns()[0]->coder() );
 
    string name = coder.name();
 
    Log::debug() << "test: codec name is '" << name << "'" << std::endl;
 
    ASSERT(name == "int16_missing");
 
    Log::debug() << "test: OK" << std::endl;
}
 
 
static void tearDown(){}
 
SIMPLE_TEST(Int16_MissingCodec)