1 | package geniusweb.bidspace;
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2 |
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3 | import static org.junit.Assert.assertEquals;
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4 | import static org.junit.Assert.assertFalse;
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5 | import static org.junit.Assert.assertTrue;
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6 |
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7 | import java.math.BigDecimal;
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8 | import java.util.Arrays;
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9 | import java.util.List;
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10 |
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11 | import org.junit.Test;
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12 |
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13 | import tudelft.utilities.junit.GeneralTests;
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14 |
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15 | public class IntervalTest extends GeneralTests<Interval> {
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16 |
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17 | private static final BigDecimal ZERO = BigDecimal.ZERO;
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18 | private static final BigDecimal ONE = BigDecimal.ONE;
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19 | private static final BigDecimal TWO = BigDecimal.valueOf(2);
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20 | private static final BigDecimal THREE = BigDecimal.valueOf(3);
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21 | private static final BigDecimal TEN = BigDecimal.TEN;
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22 | private static final Interval int1 = new Interval(ZERO, ONE);
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23 | private static final Interval int1a = new Interval(ZERO, ONE);
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24 | private static final Interval int2 = new Interval(ONE, TEN);
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25 | private static final Interval int3 = new Interval(TWO, TEN);
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26 |
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27 | @Override
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28 | public List<List<Interval>> getGeneralTestData() {
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29 | return Arrays.asList(Arrays.asList(int1, int1a), Arrays.asList(int2),
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30 | Arrays.asList(int3));
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31 | }
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32 |
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33 | @Override
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34 | public List<String> getGeneralTestStrings() {
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35 | return Arrays.asList("Interval\\[0,1\\]", "Interval\\[1,10\\]",
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36 | "Interval\\[2,10\\]");
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37 | }
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38 |
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39 | @Test
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40 | public void smokeTest() {
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41 | new Interval(BigDecimal.ZERO, BigDecimal.ONE);
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42 | }
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43 |
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44 | @Test
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45 | public void smokeTestBad() {
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46 | Interval i = new Interval(BigDecimal.TEN, BigDecimal.ONE);
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47 | assertTrue(i.isEmpty());
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48 | }
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49 |
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50 | @Test(expected = NullPointerException.class)
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51 | public void smokeNull1() {
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52 | new Interval(null, BigDecimal.ZERO);
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53 | }
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54 |
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55 | @Test(expected = NullPointerException.class)
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56 | public void smokeNull2() {
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57 | new Interval(BigDecimal.ZERO, null);
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58 | }
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59 |
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60 | @Test
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61 | public void testMin() {
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62 | assertEquals(BigDecimal.ZERO, int1.getMin());
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63 | assertEquals(BigDecimal.ONE, int2.getMin());
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64 | }
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65 |
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66 | @Test
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67 | public void testMax() {
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68 | assertEquals(BigDecimal.ONE, int1.getMax());
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69 | assertEquals(BigDecimal.TEN, int2.getMax());
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70 | }
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71 |
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72 | @Test
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73 | public void containsTest() {
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74 | assertTrue(int1.contains(BigDecimal.valueOf(0.3)));
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75 | assertFalse(int1.contains(BigDecimal.valueOf(-0.3)));
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76 | assertFalse(int1.contains(BigDecimal.valueOf(1.3)));
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77 |
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78 | assertFalse(int3.contains(ZERO));
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79 | assertFalse(int3.contains(ONE));
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80 | assertTrue(int3.contains(TWO));
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81 | assertTrue(int3.contains(THREE));
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82 | assertTrue(int3.contains(TEN));
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83 | assertFalse(int3.contains(BigDecimal.valueOf(10.3)));
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84 |
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85 | }
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86 |
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87 | @Test
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88 | public void testIntersect() {
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89 | assertEquals(int1, int1.intersect(int1));
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90 | assertEquals(new Interval(ONE, ONE), int1.intersect(int2));
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91 | assertTrue(int1.intersect(int3).isEmpty());
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92 | assertEquals(new Interval(ONE, TWO),
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93 | new Interval(ZERO, TEN).intersect(new Interval(ONE, TWO)));
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94 | assertEquals(new Interval(ONE, TWO),
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95 | new Interval(ONE, TWO).intersect(new Interval(ZERO, TEN)));
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96 | assertEquals(new Interval(ONE, TWO),
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97 | new Interval(ZERO, TWO).intersect(new Interval(ONE, TEN)));
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98 | assertEquals(new Interval(ONE, TWO),
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99 | new Interval(ONE, TEN).intersect(new Interval(ZERO, TWO)));
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100 | }
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101 |
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102 | @Test
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103 | public void subtractTest() {
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104 | assertEquals(new Interval(BigDecimal.valueOf(-1), ZERO),
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105 | int1.subtract(ONE));
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106 | }
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107 |
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108 | @Test
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109 | public void invertTest() {
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110 | assertEquals(new Interval(BigDecimal.valueOf(-10), ZERO),
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111 | int1.invert(int2));
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112 | assertEquals(new Interval(ZERO, TEN), int2.invert(int1));
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113 | assertEquals(
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114 | new Interval(BigDecimal.valueOf(-9), BigDecimal.valueOf(8)),
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115 | int2.invert(int3));
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116 | }
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117 |
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118 | }
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