TestCActionMathInterpolate.java

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/*
 * @cond LICENSE
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 * # LGPL License                                                                       #
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 * # This file is part of the LightJason AgentSpeak(L++)                                #
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 * # GNU Lesser General Public License for more details.                                #
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package org.lightjason.agentspeak.action.builtin;

import org.apache.commons.math3.analysis.interpolation.LinearInterpolator;
import org.apache.commons.math3.analysis.interpolation.NevilleInterpolator;
import org.apache.commons.math3.analysis.polynomials.PolynomialFunctionLagrangeForm;
import org.apache.commons.math3.analysis.polynomials.PolynomialFunctionNewtonForm;
import org.apache.commons.math3.analysis.polynomials.PolynomialSplineFunction;
import org.junit.Assert;
import org.junit.Test;
import org.lightjason.agentspeak.IBaseTest;
import org.lightjason.agentspeak.action.builtin.math.interpolate.CCreate;
import org.lightjason.agentspeak.action.builtin.math.interpolate.CMultipleInterpolate;
import org.lightjason.agentspeak.action.builtin.math.interpolate.CSingleInterpolate;
import org.lightjason.agentspeak.language.CRawTerm;
import org.lightjason.agentspeak.language.ITerm;
import org.lightjason.agentspeak.language.execution.IContext;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import static org.junit.Assert.assertTrue;

public final class TestCActionMathInterpolate extends IBaseTest
{

    @Test
    public final void create()
    {
        final List<ITerm> l_return = new ArrayList<>();

        new CCreate().execute(
            false, IContext.EMPTYPLAN,
            Stream.of( "linear", 2, 3, 8, 11, 13, 20 ).map( CRawTerm::from ).collect( Collectors.toList() ),
            l_return
        );

        new CCreate().execute(
            false, IContext.EMPTYPLAN,
            Stream.of( "divideddifference", 2, 3, 8, 11, 13, 20 ).map( CRawTerm::from ).collect( Collectors.toList() ),
            l_return
        );

        new CCreate().execute(
            false, IContext.EMPTYPLAN,
            Stream.of( "neville", 2, 3, 8, 11, 13, 20 ).map( CRawTerm::from ).collect( Collectors.toList() ),
            l_return
        );

        new CCreate().execute(
            false, IContext.EMPTYPLAN,
            Stream.of( "akima", 42, 65, 78, 87, 100, 150, 41, 63, 82, 98, 110, 200 ).map( CRawTerm::from ).collect( Collectors.toList() ),
            l_return
        );

        new CCreate().execute(
            false, IContext.EMPTYPLAN,
            Stream.of( "loess", 42, 65, 78, 87, 100, 150, 300, 400, 500, 41, 63, 82, 98, 110, 200, 400, 600, 800 ).map( CRawTerm::from ).collect( Collectors.toList() ),
            l_return
        );

        Assert.assertEquals( l_return.size(), 5 );
        assertTrue( l_return.get( 0 ).raw() instanceof PolynomialSplineFunction );
        assertTrue( l_return.get( 1 ).raw() instanceof PolynomialFunctionNewtonForm );
        assertTrue( l_return.get( 2 ).raw() instanceof PolynomialFunctionLagrangeForm );
        assertTrue( l_return.get( 3 ).raw() instanceof PolynomialSplineFunction );
        assertTrue( l_return.get( 4 ).raw() instanceof PolynomialSplineFunction );
    }

    @Test
    public final void singleinterpolate()
    {
        final List<ITerm> l_return = new ArrayList<>();

        new CSingleInterpolate().execute(
            false, IContext.EMPTYPLAN,
            Stream.of(
                    new LinearInterpolator().interpolate( new double[]{3, 6}, new double[]{11, 13} ), 3, 4
                ).map( CRawTerm::from ).collect( Collectors.toList() ),
            l_return
        );
        Assert.assertEquals( l_return.size(), 2 );
        Assert.assertEquals( l_return.get( 0 ).<Number>raw(), 11.0 );
        Assert.assertEquals( l_return.get( 1 ).<Number>raw(), 11.666666666666666 );
    }

    @Test
    public final void multipleinterpolate()
    {
        final List<ITerm> l_return = new ArrayList<>();

        new CMultipleInterpolate().execute(
            false, IContext.EMPTYPLAN,
            Stream.of(
                    5,
                    new LinearInterpolator().interpolate( new double[]{3, 6}, new double[]{11, 13} ),
                    new NevilleInterpolator().interpolate( new double[]{2, 3, 8}, new double[]{11, 13, 20} )
                ).map( CRawTerm::from ).collect( Collectors.toList() ),
            l_return
        );

        Assert.assertEquals( l_return.size(), 2 );
        Assert.assertEquals( l_return.get( 0 ).<Number>raw(), 12.333333333333334 );
        Assert.assertEquals( l_return.get( 1 ).<Number>raw(), 16.400000000000002 );
    }

}