1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.osm;
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3 |
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4 | import static org.junit.Assert.assertEquals;
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5 | import static org.junit.Assert.assertFalse;
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6 | import static org.junit.Assert.assertNotNull;
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7 | import static org.junit.Assert.assertTrue;
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8 |
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9 | import java.util.Arrays;
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10 | import java.util.Collection;
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11 | import java.util.Collections;
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12 | import java.util.concurrent.CountDownLatch;
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13 | import java.util.concurrent.TimeUnit;
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14 |
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15 | import org.junit.After;
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16 | import org.junit.Before;
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17 | import org.junit.Rule;
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18 | import org.junit.Test;
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19 | import org.openstreetmap.josm.data.UserIdentityManager;
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20 | import org.openstreetmap.josm.testutils.JOSMTestRules;
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21 | import org.openstreetmap.josm.tools.Logging;
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22 |
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23 | import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
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24 |
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25 | /**
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26 | * Unit test of {@link ChangesetCache}
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27 | */
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28 | public class ChangesetCacheTest {
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29 |
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30 | /**
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31 | * Setup test.
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32 | */
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33 | @Rule
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34 | @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
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35 | public JOSMTestRules test = new JOSMTestRules();
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36 |
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37 | private static final ChangesetCache cache = ChangesetCache.getInstance();
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38 |
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39 | /**
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40 | * Clears cache before/after each unit test.
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41 | */
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42 | @After
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43 | @Before
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44 | public void clearCache() {
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45 | cache.listeners.clear();
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46 | cache.clear();
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47 | }
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48 |
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49 | abstract class TestListener implements ChangesetCacheListener {
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50 |
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51 | protected final CountDownLatch latch = new CountDownLatch(1);
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52 | protected ChangesetCacheEvent event;
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53 |
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54 | @Override
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55 | public void changesetCacheUpdated(ChangesetCacheEvent event) {
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56 | this.event = event;
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57 | latch.countDown();
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58 | }
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59 |
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60 | protected final void await() {
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61 | try {
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62 | latch.await(2, TimeUnit.SECONDS);
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63 | } catch (InterruptedException e) {
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64 | Logging.error(e);
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65 | }
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66 | }
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67 |
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68 | abstract void test();
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69 | }
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70 |
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71 | /**
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72 | * Unit test of {@link ChangesetCache#ChangesetCache}
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73 | */
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74 | @Test
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75 | public void testConstructor() {
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76 | assertNotNull(ChangesetCache.getInstance());
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77 | }
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78 |
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79 | @Test
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80 | public void testAddAndRemoveListeners() {
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81 | // should work
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82 | cache.addChangesetCacheListener(null);
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83 |
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84 | // should work
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85 | ChangesetCacheListener listener = new ChangesetCacheListener() {
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86 | @Override
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87 | public void changesetCacheUpdated(ChangesetCacheEvent event) {}
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88 | };
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89 | cache.addChangesetCacheListener(listener);
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90 | // adding a second time - should work too
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91 | cache.addChangesetCacheListener(listener);
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92 | assertEquals(1, cache.listeners.size()); // ... but only added once
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93 |
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94 | cache.removeChangesetCacheListener(null);
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95 |
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96 | cache.removeChangesetCacheListener(listener);
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97 | assertTrue(cache.listeners.isEmpty());
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98 | }
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99 |
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100 | @Test
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101 | public void testUpdateGetRemoveCycle() {
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102 | cache.update(new Changeset(1));
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103 | assertEquals(1, cache.size());
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104 | assertNotNull(cache.get(1));
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105 | assertEquals(1, cache.get(1).getId());
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106 | cache.remove(1);
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107 | assertEquals(0, cache.size());
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108 | }
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109 |
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110 | @Test
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111 | public void testUpdateTwice() {
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112 | Changeset cs = new Changeset(1);
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113 | cs.setIncomplete(false);
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114 | cs.put("key1", "value1");
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115 | cs.setOpen(true);
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116 | cache.update(cs);
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117 |
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118 | Changeset cs2 = new Changeset(cs);
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119 | assertNotNull(cs2);
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120 | cs2.put("key2", "value2");
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121 | cs2.setOpen(false);
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122 | cache.update(cs2);
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123 |
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124 | assertEquals(1, cache.size());
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125 | assertNotNull(cache.get(1));
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126 |
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127 | cs = cache.get(1);
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128 | assertEquals("value1", cs.get("key1"));
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129 | assertEquals("value2", cs.get("key2"));
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130 | assertFalse(cs.isOpen());
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131 | }
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132 |
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133 | @Test
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134 | public void testContains() {
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135 | Changeset cs = new Changeset(1);
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136 | cache.update(cs);
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137 |
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138 | assertTrue(cache.contains(1));
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139 | assertTrue(cache.contains(cs));
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140 | assertTrue(cache.contains(new Changeset(cs)));
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141 |
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142 | assertFalse(cache.contains(2));
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143 | assertFalse(cache.contains(new Changeset(2)));
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144 | assertFalse(cache.contains(null));
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145 | }
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146 |
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147 | @Test
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148 | public void testFireingEventsAddAChangeset() {
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149 | TestListener listener = new TestListener() {
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150 | @Override
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151 | public void test() {
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152 | await();
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153 | assertNotNull(event);
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154 | assertEquals(1, event.getAddedChangesets().size());
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155 | assertTrue(event.getRemovedChangesets().isEmpty());
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156 | assertTrue(event.getUpdatedChangesets().isEmpty());
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157 | assertEquals(cache, event.getSource());
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158 | }
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159 | };
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160 | cache.addChangesetCacheListener(listener);
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161 | cache.update(new Changeset(1));
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162 | listener.test();
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163 | cache.removeChangesetCacheListener(listener);
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164 | }
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165 |
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166 | @Test
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167 | public void testFireingEventsUpdateChangeset() {
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168 | // Waiter listener to ensure the second listener does not receive the first event
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169 | TestListener waiter = new TestListener() {
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170 | @Override
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171 | void test() {
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172 | await();
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173 | }
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174 | };
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175 | cache.addChangesetCacheListener(waiter);
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176 | Changeset cs = new Changeset(1);
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177 | cache.update(cs);
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178 | waiter.test();
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179 | cache.removeChangesetCacheListener(waiter);
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180 |
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181 | TestListener listener = new TestListener() {
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182 | @Override
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183 | void test() {
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184 | await();
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185 | assertNotNull(event);
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186 | assertTrue(event.getAddedChangesets().isEmpty());
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187 | assertTrue(event.getRemovedChangesets().isEmpty());
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188 | assertEquals(1, event.getUpdatedChangesets().size());
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189 | assertEquals(cache, event.getSource());
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190 | }
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191 | };
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192 | cache.addChangesetCacheListener(listener);
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193 | cache.update(cs);
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194 | listener.test();
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195 | cache.removeChangesetCacheListener(listener);
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196 | }
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197 |
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198 | @Test
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199 | public void testFireingEventsRemoveChangeset() {
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200 | // Waiter listener to ensure the second listener does not receive the first event
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201 | TestListener waiter = new TestListener() {
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202 | @Override
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203 | void test() {
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204 | await();
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205 | }
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206 | };
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207 | cache.addChangesetCacheListener(waiter);
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208 | cache.update(new Changeset(1));
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209 | waiter.test();
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210 | cache.removeChangesetCacheListener(waiter);
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211 |
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212 | TestListener listener = new TestListener() {
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213 | @Override
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214 | void test() {
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215 | await();
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216 | assertNotNull(event);
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217 | assertTrue(event.getAddedChangesets().isEmpty());
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218 | assertEquals(1, event.getRemovedChangesets().size());
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219 | assertTrue(event.getUpdatedChangesets().isEmpty());
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220 | assertEquals(cache, event.getSource());
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221 | }
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222 | };
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223 | cache.addChangesetCacheListener(listener);
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224 | cache.remove(1);
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225 | listener.test();
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226 | cache.removeChangesetCacheListener(listener);
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227 | }
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228 |
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229 | /**
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230 | * Unit test of methods {@link ChangesetCache#getOpenChangesets} / {@link ChangesetCache#getChangesets}.
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231 | */
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232 | @Test
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233 | public void testGetOpenChangesets() {
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234 | // empty cache => empty list
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235 | assertTrue(
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236 | "Empty cache should produce an empty list.",
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237 | cache.getOpenChangesets().isEmpty()
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238 | );
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239 | assertTrue(
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240 | "Empty cache should produce an empty list.",
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241 | cache.getChangesets().isEmpty()
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242 | );
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243 |
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244 | // cache with only closed changesets => empty list
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245 | Changeset closedCs = new Changeset(1);
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246 | closedCs.setOpen(false);
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247 | cache.update(closedCs);
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248 | assertTrue(
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249 | "Cache with only closed changesets should produce an empty list.",
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250 | cache.getOpenChangesets().isEmpty()
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251 | );
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252 | assertEquals(1, cache.getChangesets().size());
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253 |
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254 | // cache with open and closed changesets => list with only the open ones
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255 | Changeset openCs = new Changeset(2);
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256 | openCs.setOpen(true);
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257 | cache.update(openCs);
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258 | assertEquals(
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259 | Collections.singletonList(openCs),
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260 | cache.getOpenChangesets()
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261 | );
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262 | assertEquals(2, cache.getChangesets().size());
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263 | }
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264 |
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265 | /**
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266 | * Unit test of method {@link ChangesetCache#getOpenChangesetsForCurrentUser}.
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267 | */
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268 | @Test
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269 | public void testGetOpenChangesetsForCurrentUser() {
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270 | // empty cache => empty list
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271 | assertTrue(
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272 | "Empty cache should produce an empty list.",
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273 | cache.getOpenChangesetsForCurrentUser().isEmpty()
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274 | );
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275 |
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276 | Changeset openCs1 = new Changeset(1);
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277 | openCs1.setOpen(true);
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278 | openCs1.setUser(User.getAnonymous());
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279 | cache.update(openCs1);
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280 |
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281 | Changeset openCs2 = new Changeset(2);
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282 | openCs2.setOpen(true);
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283 | openCs2.setUser(User.createLocalUser("foo"));
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284 | cache.update(openCs2);
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285 |
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286 | Changeset closedCs = new Changeset(3);
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287 | closedCs.setOpen(false);
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288 | cache.update(closedCs);
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289 |
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290 | assertEquals(3, cache.getChangesets().size());
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291 |
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292 | UserIdentityManager.getInstance().setAnonymous();
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293 | assertEquals(2, cache.getOpenChangesetsForCurrentUser().size());
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294 |
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295 | UserIdentityManager.getInstance().setPartiallyIdentified("foo");
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296 | assertEquals(1, cache.getOpenChangesetsForCurrentUser().size());
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297 | }
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298 |
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299 | /**
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300 | * Unit test of methods {@link ChangesetCache#remove}.
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301 | */
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302 | @Test
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303 | public void testRemove() {
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304 | Changeset cs1 = new Changeset(1);
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305 | cache.update(cs1);
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306 | assertEquals(1, cache.getChangesets().size());
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307 |
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308 | cache.remove((Changeset) null);
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309 | cache.remove(cs1);
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310 | assertTrue(cache.getChangesets().isEmpty());
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311 |
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312 | Changeset cs2 = new Changeset(2);
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313 | cache.update((Collection<Changeset>) null);
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314 | cache.update(Arrays.asList(cs1, cs2));
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315 | assertEquals(2, cache.getChangesets().size());
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316 |
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317 | cache.remove((Collection<Changeset>) null);
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318 | cache.remove(Arrays.asList(cs1, cs2));
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319 | assertTrue(cache.getChangesets().isEmpty());
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320 | }
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321 | }
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