| 1 | /** |
| 2 | * |
| 3 | */ |
| 4 | package de.uka.ipd.sdq.probfunction.math.test; |
| 5 | |
| 6 | import java.util.ArrayList; |
| 7 | import java.util.List; |
| 8 | |
| 9 | import junit.framework.Assert; |
| 10 | import junit.framework.JUnit4TestAdapter; |
| 11 | |
| 12 | import org.junit.Before; |
| 13 | import org.junit.Ignore; |
| 14 | import org.junit.Test; |
| 15 | |
| 16 | import de.uka.ipd.sdq.probfunction.math.IBoxedPDF; |
| 17 | import de.uka.ipd.sdq.probfunction.math.IContinuousSample; |
| 18 | import de.uka.ipd.sdq.probfunction.math.IProbabilityDensityFunction; |
| 19 | import de.uka.ipd.sdq.probfunction.math.IProbabilityFunctionFactory; |
| 20 | import de.uka.ipd.sdq.probfunction.math.ISamplePDF; |
| 21 | import de.uka.ipd.sdq.probfunction.math.exception.DomainNotNumbersException; |
| 22 | import de.uka.ipd.sdq.probfunction.math.exception.DoubleSampleException; |
| 23 | import de.uka.ipd.sdq.probfunction.math.exception.FunctionNotInTimeDomainException; |
| 24 | import de.uka.ipd.sdq.probfunction.math.exception.FunctionsInDifferenDomainsException; |
| 25 | import de.uka.ipd.sdq.probfunction.math.exception.IncompatibleUnitsException; |
| 26 | import de.uka.ipd.sdq.probfunction.math.exception.InvalidSampleValueException; |
| 27 | import de.uka.ipd.sdq.probfunction.math.exception.NegativeDistanceException; |
| 28 | import de.uka.ipd.sdq.probfunction.math.exception.ProbabilitySumNotOneException; |
| 29 | import de.uka.ipd.sdq.probfunction.math.exception.UnitNameNotSetException; |
| 30 | import de.uka.ipd.sdq.probfunction.math.exception.UnitNotSetException; |
| 31 | import de.uka.ipd.sdq.probfunction.math.exception.UnknownPDFTypeException; |
| 32 | import de.uka.ipd.sdq.probfunction.math.exception.UnorderedDomainException; |
| 33 | |
| 34 | /** |
| 35 | * @author Ihssane |
| 36 | * |
| 37 | */ |
| 38 | public class BoxedPDFTest{ |
| 39 | private IBoxedPDF df1, df2; |
| 40 | private IProbabilityFunctionFactory dfFactory = IProbabilityFunctionFactory.eINSTANCE; |
| 41 | |
| 42 | private IBoxedPDF createBoxedPDF(Double[] samples) |
| 43 | throws DoubleSampleException { |
| 44 | List<IContinuousSample> sList = new ArrayList<IContinuousSample>(); |
| 45 | for (int i = 0; i < samples.length; i += 2) { |
| 46 | IContinuousSample s = dfFactory.createContinuousSample(samples[i], |
| 47 | samples[i + 1]); |
| 48 | sList.add(s); |
| 49 | } |
| 50 | return dfFactory.createBoxedPDF(sList, dfFactory.createDefaultUnit()); |
| 51 | } |
| 52 | |
| 53 | @Before |
| 54 | public void setUp() throws DoubleSampleException { |
| 55 | df1 = createBoxedPDF(new Double[]{3.0, 0.1, 2.1, 0.2, 4.3, 0.4, 1.5, 0.3}); |
| 56 | df2 = createBoxedPDF(new Double[]{3.0, 0.0, 2.1, 0.2, 2.2, 0.1, 2.5, |
| 57 | 0.2, 4.3, 0.3}); |
| 58 | |
| 59 | } |
| 60 | |
| 61 | @Test |
| 62 | public void arithmeticMean() throws DomainNotNumbersException, FunctionNotInTimeDomainException{ |
| 63 | |
| 64 | double meanDf1 = 0.75 * 0.3 + 1.8 * 0.2 + 2.55 * 0.1 + 3.65 * 0.4; |
| 65 | System.out.println(df1); |
| 66 | |
| 67 | Assert.assertEquals(meanDf1, df1.getArithmeticMeanValue()); |
| 68 | //Assert.assertEquals(2.43, df1.getArithmeticMeanValue()); |
| 69 | } |
| 70 | |
| 71 | @Test |
| 72 | public void timeDomain() throws FunctionNotInTimeDomainException { |
| 73 | Assert.assertTrue(df1.isInTimeDomain()); |
| 74 | Assert.assertTrue(df2.isInTimeDomain()); |
| 75 | Assert.assertFalse(df1.isInFrequencyDomain()); |
| 76 | IProbabilityDensityFunction pdf = df1.getFourierTransform(); |
| 77 | Assert.assertFalse(pdf.isInTimeDomain()); |
| 78 | Assert.assertTrue(pdf.isInFrequencyDomain()); |
| 79 | } |
| 80 | |
| 81 | @Test |
| 82 | public void equals() throws DoubleSampleException { |
| 83 | Assert.assertTrue(df1.equals(df1)); |
| 84 | |
| 85 | IBoxedPDF df1copy = createBoxedPDF(new Double[]{3.0, 0.1, 2.1, 0.2, |
| 86 | 4.3, 0.4, 1.5, 0.3}); |
| 87 | Assert.assertTrue(df1.equals(df1copy)); |
| 88 | |
| 89 | Assert.assertFalse(df2.equals(df1)); |
| 90 | IBoxedPDF df1WrongCopy = createBoxedPDF(new Double[]{2.1, 0.2, 3.0, |
| 91 | 0.1, 4.3, 0.4, 1.5, 0.3}); |
| 92 | Assert.assertTrue(df1.equals(df1WrongCopy)); |
| 93 | } |
| 94 | |
| 95 | @Test |
| 96 | public void scale() throws DoubleSampleException { |
| 97 | IProbabilityDensityFunction df1scale = df1.scale(0.1); |
| 98 | IBoxedPDF spdf = createBoxedPDF(new Double[]{3.0, 0.01, 2.1, 0.02, 4.3, |
| 99 | 0.04, 1.5, 0.03}); |
| 100 | Assert.assertEquals(spdf, df1scale); |
| 101 | } |
| 102 | |
| 103 | @Test |
| 104 | public void add() throws DoubleSampleException, |
| 105 | FunctionsInDifferenDomainsException, UnknownPDFTypeException, |
| 106 | IncompatibleUnitsException { |
| 107 | IProbabilityDensityFunction sum = df1.add(df1); |
| 108 | IBoxedPDF sumExpected = createBoxedPDF(new Double[]{3.0, 0.2, 2.1, 0.4, |
| 109 | 4.3, 0.8, 1.5, 0.6}); |
| 110 | Assert.assertEquals(dfFactory.transformToSamplePDF(sumExpected), |
| 111 | (ISamplePDF) sum); |
| 112 | |
| 113 | } |
| 114 | |
| 115 | @Test |
| 116 | @Ignore |
| 117 | public void mult() throws FunctionsInDifferenDomainsException, |
| 118 | UnknownPDFTypeException, IncompatibleUnitsException, |
| 119 | DoubleSampleException { |
| 120 | // IProbabilityDensityFunction prod = df1.mult(df1); |
| 121 | ISamplePDF df11 = dfFactory.transformToSamplePDF(df1); |
| 122 | IProbabilityDensityFunction prod = df11.mult(df11); |
| 123 | System.out.println(prod); |
| 124 | IBoxedPDF expected = createBoxedPDF(new Double[]{3.0, 0.01, 2.1, 0.04, |
| 125 | 4.3, 0.16, 1.5, 0.09}); |
| 126 | ISamplePDF sExpexted = dfFactory.transformToSamplePDF(expected); |
| 127 | System.out.println(sExpexted); |
| 128 | Assert.assertEquals(sExpexted, (ISamplePDF) prod); |
| 129 | } |
| 130 | |
| 131 | @Test |
| 132 | public void percentile() throws IndexOutOfBoundsException, |
| 133 | UnorderedDomainException { |
| 134 | Assert.assertEquals(0.3, df1.getPercentile(10)); |
| 135 | Assert.assertEquals(0.2, df1.getPercentile(40)); |
| 136 | Assert.assertEquals(0.1, df1.getPercentile(50)); |
| 137 | Assert.assertEquals(0.4, df1.getPercentile(99)); |
| 138 | } |
| 139 | |
| 140 | @Test |
| 141 | public void getMedian() throws UnorderedDomainException, |
| 142 | DoubleSampleException { |
| 143 | Assert.assertEquals(2.55, df1.getMedian()); |
| 144 | IBoxedPDF df = createBoxedPDF(new Double[]{3.0, 0.1, 2.1, 0.2, 4.3, |
| 145 | 0.4, 1.5, 0.1, 1.4, 0.2}); |
| 146 | Assert.assertEquals(2.1, df.getMedian()); |
| 147 | } |
| 148 | |
| 149 | @Test |
| 150 | public void checkConstraints() throws NegativeDistanceException, |
| 151 | ProbabilitySumNotOneException, FunctionNotInTimeDomainException, |
| 152 | UnitNotSetException, UnitNameNotSetException, |
| 153 | InvalidSampleValueException { |
| 154 | df1.checkConstrains(); |
| 155 | } |
| 156 | |
| 157 | @Test(expected = InvalidSampleValueException.class) |
| 158 | public void checkConstraints1() throws DoubleSampleException, |
| 159 | NegativeDistanceException, ProbabilitySumNotOneException, |
| 160 | FunctionNotInTimeDomainException, UnitNotSetException, |
| 161 | UnitNameNotSetException, InvalidSampleValueException { |
| 162 | IBoxedPDF b = createBoxedPDF(new Double[]{3.0, 0.1, 2.1, 0.4, 4.3, 0.3, |
| 163 | -1.5, 0.2}); |
| 164 | b.checkConstrains(); |
| 165 | } |
| 166 | |
| 167 | @Test(expected = ProbabilitySumNotOneException.class) |
| 168 | public void checkConstraints2() throws DoubleSampleException, |
| 169 | NegativeDistanceException, ProbabilitySumNotOneException, |
| 170 | FunctionNotInTimeDomainException, UnitNotSetException, |
| 171 | UnitNameNotSetException, InvalidSampleValueException { |
| 172 | IBoxedPDF b = createBoxedPDF(new Double[]{3.0, 0.1, 2.1, 0.4, 4.3, 0.3, |
| 173 | 1.5, 0.3}); |
| 174 | b.checkConstrains(); |
| 175 | } |
| 176 | |
| 177 | //TODO uncomment after refactoring in BoxedPDFImpl.checkConstrains() |
| 178 | // @Test(expected = UnitNotSetException.class) |
| 179 | // public void checkConstraints3() throws DoubleSampleException, |
| 180 | // NegativeDistanceException, ProbabilitySumNotOneException, |
| 181 | // FunctionNotInTimeDomainException, UnitNotSetException, |
| 182 | // UnitNameNotSetException, InvalidSampleValueException { |
| 183 | // List<IContinuousSample> samples = new ArrayList<IContinuousSample>(); |
| 184 | // Collections.addAll(samples, dfFactory.createContinuousSample(3.0, 0.1), |
| 185 | // dfFactory.createContinuousSample(2.1, 0.4), dfFactory |
| 186 | // .createContinuousSample(4.3, 0.5)); |
| 187 | // |
| 188 | // IBoxedPDF b = dfFactory.createBoxedPDF(samples, null); |
| 189 | // b.checkConstrains(); |
| 190 | // } |
| 191 | |
| 192 | public static junit.framework.Test suite() { |
| 193 | return new JUnit4TestAdapter(BoxedPDFTest.class); |
| 194 | } |
| 195 | } |