source: profile/src/test/java/geniusweb/profile/utilityspace/NumberValueSetUtilTest.java@ 52

package geniusweb.profile.utilityspace;

import static org.junit.Assert.assertEquals;

import java.io.IOException;
import java.math.BigDecimal;
import java.util.Arrays;
import java.util.List;

import org.junit.Test;

import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import geniusweb.issuevalue.DiscreteValue;
import geniusweb.issuevalue.DiscreteValueSet;
import geniusweb.issuevalue.NumberValue;
import geniusweb.issuevalue.NumberValueSet;
import geniusweb.issuevalue.ValueSet;
import tudelft.utilities.immutablelist.Range;
import tudelft.utilities.junit.GeneralTests;

public class NumberValueSetUtilTest
                extends GeneralTests<NumberValueSetUtilities> {

        private static final BigDecimal lowval1 = new BigDecimal("12.5");
        private static final BigDecimal low1util = new BigDecimal("0.5");
        private static final BigDecimal low1utilb = new BigDecimal("0.6");
        private static final BigDecimal highval = new BigDecimal("18.5");
        private static final BigDecimal highvalb = new BigDecimal("18.4");
        private static final BigDecimal highutil = new BigDecimal("0.9");
        private static final NumberValueSetUtilities valueset1 = new NumberValueSetUtilities(
                        lowval1, low1util, highval, highutil);
        private static final NumberValueSetUtilities valueset1b = new NumberValueSetUtilities(
                        lowval1, low1util, highval, highutil);
        private static final NumberValueSetUtilities valueset2 = new NumberValueSetUtilities(
                        lowval1, low1utilb, highval, highutil);
        private static final NumberValueSetUtilities valueset3 = new NumberValueSetUtilities(
                        lowval1, low1util, highvalb, highutil);
        private static final BigDecimal ZERO_1 = new BigDecimal("0.1");
        private final String utilstring = "{\"NumberValueSetUtilities\":{\"lowValue\":12.5,\"lowUtility\":0.5,\"highValue\":18.5,\"highUtility\":0.9}}";

        private static final ObjectMapper jackson = new ObjectMapper();

        @Override
        public List<List<NumberValueSetUtilities>> getGeneralTestData() {
                return Arrays.asList(Arrays.asList(valueset1, valueset1b),
                                Arrays.asList(valueset2), Arrays.asList(valueset3));
        }

        @Override
        public List<String> getGeneralTestStrings() {
                return Arrays.asList("NumberValueSetUtilities\\(12.5->0.5,18.5->0.9\\)",
                                "NumberValueSetUtilities\\(12.5->0.6,18.5->0.9\\)",
                                "NumberValueSetUtilities\\(12.5->0.5,18.4->0.9\\)");
        }

        @Test
        public void smoketest() {
                NumberValueSetUtilities utils = valueset1;
        }

        @Test
        public void utilAscentingTest() {
                NumberValueSetUtilities utils = valueset1;
                assertEquals(0,
                                low1util.compareTo(utils.getUtility(new NumberValue(lowval1))));
        }

        @Test
        public void utilDescendingTest() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(lowval1,
                                highutil, highval, low1util);
                assertEquals(0,
                                highutil.compareTo(utils.getUtility(new NumberValue(lowval1))));
        }

        @Test(expected = IllegalArgumentException.class)
        public void reverserangetest() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(highval,
                                low1util, highval, highutil);
        }

        @Test(expected = NullPointerException.class)
        public void testNullHigh() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(lowval1,
                                low1util, null, highutil);
        }

        @Test(expected = NullPointerException.class)
        public void testNullHighUtil() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(lowval1,
                                low1util, highval, null);
        }

        @Test(expected = NullPointerException.class)
        public void testNullLow() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(null,
                                low1util, highval, highutil);
        }

        @Test(expected = NullPointerException.class)
        public void testNullLowUtil() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(lowval1,
                                null, highval, highutil);
        }

        @Test(expected = IllegalArgumentException.class)
        public void testLowUtilNegative() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(lowval1,
                                new BigDecimal("-0.2"), highval, highutil);
        }

        @Test(expected = IllegalArgumentException.class)
        public void testHighUtilNegative() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(lowval1,
                                low1util, highval, new BigDecimal("-0.000003"));
        }

        @Test
        public void getUtilTest() {
                NumberValueSetUtilities utils = new NumberValueSetUtilities(lowval1,
                                low1util, highval, highutil);
                assertEquals(0,
                                highutil.compareTo(utils.getUtility(new NumberValue(highval))));
                assertEquals(0,
                                low1util.compareTo(utils.getUtility(new NumberValue(lowval1))));
                // linear interpolated , check center
                BigDecimal middleutil = low1util.add(highutil)
                                .divide(new BigDecimal("2"));
                NumberValue middleval = new NumberValue(
                                lowval1.add(highval).divide(new BigDecimal("2")));
                assertEquals(0, middleutil.compareTo(utils.getUtility(middleval)));

        }

        @Test
        public void testIsNotFittingRange() {
                ValueSet valueset = new NumberValueSet(
                                new Range(low1util, highutil, new BigDecimal("0.02")));
                ValueSetUtilities utilset = new NumberValueSetUtilities(lowval1,
                                low1util, highval, highutil);
                assertEquals(
                                "the utilities are specified down to 12.5 but the valueset starts at 0.5",
                                utilset.isFitting(valueset));
        }

        @Test
        public void testTopOfRangeTooLarge() {
                ValueSet valueset = new NumberValueSet(
                                new Range(lowval1, highval.subtract(ZERO_1), ZERO_1));
                ValueSetUtilities utilset = new NumberValueSetUtilities(lowval1,
                                low1util, highval, highutil);
                assertEquals(
                                "the utilities are specified up to 18.5 but the valueset ends at 18.4",
                                utilset.isFitting(valueset));
        }

        @Test
        public void testIsFitting() {
                ValueSet valueset = new NumberValueSet(
                                new Range(lowval1, highval, BigDecimal.ONE));
                ValueSetUtilities utilset = new NumberValueSetUtilities(lowval1,
                                low1util, highval, highutil);
                assertEquals(null, utilset.isFitting(valueset));
        }

        @Test
        public void testIsFittingWrongType() {
                DiscreteValue vala = new DiscreteValue("a");
                DiscreteValue valb = new DiscreteValue("b");
                ValueSet valueset = new DiscreteValueSet(Arrays.asList(vala, valb));

                NumberValueSetUtilities utilset = new NumberValueSetUtilities(lowval1,
                                low1util, highval, highutil);
                assertEquals(
                                "The utilities are for a number valueset but the given values are DiscreteValueSet[\"a\", \"b\"]",
                                utilset.isFitting(valueset));

        }

        @Test
        public void testSerialize() throws JsonProcessingException {

                String json = jackson.writeValueAsString(valueset1);
                System.out.println(json);
                assertEquals(utilstring, json);
        }

        @Test
        public void testDeserialize()
                        throws JsonParseException, JsonMappingException, IOException {
                ValueSetUtilities valueutils = jackson.readValue(utilstring,
                                ValueSetUtilities.class);
                assertEquals(valueset1, valueutils);

        }

}