/* ***** BEGIN LICENSE BLOCK *****
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* $Id: wavelet_utils_test.cpp,v 1.2 2005/05/05 14:10:08 tjdwave Exp $ $Name: Dirac_0_7_0 $
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#include "core_suite.h"
#include "wavelet_utils_test.h"
#include <libdirac_common/wavelet_utils.h>
#include "arrays_test.h"
#include <memory>

using namespace dirac;

//NOTE: ensure that the suite is added to the default registry in
//cppunit_testsuite.cpp
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION (WaveletTransformTest, coreSuiteName());

void WaveletTransformTest::initPicData( PicArray& pic_data )
{
    for (int j=pic_data.FirstY() ; j<=pic_data.LastY() ; ++j)
    {
       for (int i=pic_data.FirstX() ; i<=pic_data.LastX() ; ++i)
       {
           pic_data[j][i] = (((i-j) % 13)*1024)/13;       
       }// i
    }// j
}


WaveletTransformTest::WaveletTransformTest()
{
}

WaveletTransformTest::~WaveletTransformTest()
{
}

void WaveletTransformTest::setUp()
{
}

void WaveletTransformTest::tearDown()
{
}

void WaveletTransformTest::testConstructor()
{
    // Nothing to test as no public methods/variables affected by the constructor

}

void WaveletTransformTest::testTransformInvertibility()
{
    // Test the transform
    const int depth( 1 );

    // Initialise a picture and a copy
    PicArray pic_data( 512 , 512 );
    initPicData( pic_data );

    PicArray copy_data( pic_data );

    for (int i=0 ; i< NUM_WLT_FILTERS; ++i)
    {
        WaveletTransform wtransform( depth , (WltFilter) i );

        // Go forward and back - we should be back where we started
        wtransform.Transform( FORWARD , pic_data );
        wtransform.Transform( BACKWARD , pic_data );

        bool test_val = equalArrays<ValueType>( pic_data , copy_data );

        CPPUNIT_ASSERT ( test_val == true );
    }// i
}