1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.testutils;
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3 |
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4 | import java.io.File;
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5 | import java.io.IOException;
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6 | import java.security.GeneralSecurityException;
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7 | import java.text.MessageFormat;
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8 | import java.util.TimeZone;
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9 |
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10 | import org.junit.rules.TemporaryFolder;
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11 | import org.junit.rules.TestRule;
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12 | import org.junit.runner.Description;
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13 | import org.junit.runners.model.InitializationError;
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14 | import org.junit.runners.model.Statement;
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15 | import org.openstreetmap.josm.JOSMFixture;
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16 | import org.openstreetmap.josm.Main;
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17 | import org.openstreetmap.josm.data.projection.Projections;
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18 | import org.openstreetmap.josm.gui.mappaint.MapPaintStyles;
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19 | import org.openstreetmap.josm.gui.util.GuiHelper;
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20 | import org.openstreetmap.josm.io.CertificateAmendment;
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21 | import org.openstreetmap.josm.io.OsmApi;
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22 | import org.openstreetmap.josm.io.OsmApiInitializationException;
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23 | import org.openstreetmap.josm.io.OsmTransferCanceledException;
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24 | import org.openstreetmap.josm.tools.I18n;
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25 | import org.openstreetmap.josm.tools.JosmRuntimeException;
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26 | import org.openstreetmap.josm.tools.Logging;
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27 | import org.openstreetmap.josm.tools.MemoryManagerTest;
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28 | import org.openstreetmap.josm.tools.date.DateUtils;
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29 |
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30 | import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
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31 |
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32 | /**
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33 | * This class runs a test in an environment that resembles the one used by the JOSM main application.
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34 | * <p>
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35 | * The environment is reset before every test. You can specify the components to which you need access using the methods of this class.
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36 | * For example, invoking {@link #preferences()} gives you access to the (default) preferences.
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37 | *
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38 | * @author Michael Zangl
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39 | */
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40 | public class JOSMTestRules implements TestRule {
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41 | private int timeout = isDebugMode() ? -1 : 10 * 1000;
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42 | private TemporaryFolder josmHome;
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43 | private boolean usePreferences = false;
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44 | private APIType useAPI = APIType.NONE;
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45 | private String i18n = null;
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46 | private boolean platform;
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47 | private boolean useProjection;
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48 | private boolean commands;
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49 | private boolean allowMemoryManagerLeaks;
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50 | private boolean useMapStyles;
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51 | private boolean useHttps;
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52 |
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53 | /**
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54 | * Disable the default timeout for this test. Use with care.
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55 | * @return this instance, for easy chaining
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56 | */
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57 | public JOSMTestRules noTimeout() {
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58 | timeout = -1;
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59 | return this;
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60 | }
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61 |
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62 | /**
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63 | * Set a timeout for all tests in this class. Local method timeouts may only reduce this timeout.
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64 | * @param millis The timeout duration in milliseconds.
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65 | * @return this instance, for easy chaining
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66 | */
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67 | public JOSMTestRules timeout(int millis) {
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68 | timeout = isDebugMode() ? -1 : millis;
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69 | return this;
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70 | }
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71 |
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72 | /**
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73 | * Enable the use of default preferences.
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74 | * @return this instance, for easy chaining
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75 | */
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76 | public JOSMTestRules preferences() {
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77 | josmHome();
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78 | usePreferences = true;
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79 | return this;
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80 | }
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81 |
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82 | /**
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83 | * Set JOSM home to a valid, empty directory.
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84 | * @return this instance, for easy chaining
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85 | */
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86 | private JOSMTestRules josmHome() {
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87 | josmHome = new TemporaryFolder();
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88 | return this;
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89 | }
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90 |
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91 | /**
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92 | * Enables the i18n module for this test in english.
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93 | * @return this instance, for easy chaining
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94 | */
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95 | public JOSMTestRules i18n() {
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96 | return i18n("en");
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97 | }
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98 |
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99 | /**
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100 | * Enables the i18n module for this test.
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101 | * @param language The language to use.
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102 | * @return this instance, for easy chaining
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103 | */
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104 | public JOSMTestRules i18n(String language) {
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105 | i18n = language;
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106 | return this;
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107 | }
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108 |
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109 | /**
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110 | * Enable {@link Main#platform} global variable.
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111 | * @return this instance, for easy chaining
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112 | */
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113 | public JOSMTestRules platform() {
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114 | platform = true;
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115 | return this;
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116 | }
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117 |
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118 | /**
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119 | * Enable the dev.openstreetmap.org API for this test.
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120 | * @return this instance, for easy chaining
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121 | */
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122 | public JOSMTestRules devAPI() {
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123 | preferences();
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124 | useAPI = APIType.DEV;
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125 | return this;
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126 | }
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127 |
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128 | /**
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129 | * Use the {@link FakeOsmApi} for testing.
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130 | * @return this instance, for easy chaining
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131 | */
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132 | public JOSMTestRules fakeAPI() {
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133 | useAPI = APIType.FAKE;
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134 | return this;
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135 | }
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136 |
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137 | /**
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138 | * Set up default projection (Mercator)
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139 | * @return this instance, for easy chaining
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140 | */
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141 | public JOSMTestRules projection() {
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142 | useProjection = true;
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143 | return this;
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144 | }
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145 |
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146 | /**
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147 | * Set up HTTPS certificates
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148 | * @return this instance, for easy chaining
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149 | */
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150 | public JOSMTestRules https() {
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151 | useHttps = true;
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152 | return this;
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153 | }
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154 |
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155 | /**
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156 | * Allow the execution of commands using {@link Main#undoRedo}
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157 | * @return this instance, for easy chaining
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158 | */
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159 | public JOSMTestRules commands() {
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160 | commands = true;
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161 | return this;
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162 | }
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163 |
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164 | /**
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165 | * Allow the memory manager to contain items after execution of the test cases.
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166 | * @return this instance, for easy chaining
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167 | */
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168 | public JOSMTestRules memoryManagerLeaks() {
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169 | allowMemoryManagerLeaks = true;
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170 | return this;
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171 | }
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172 |
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173 | /**
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174 | * Use map styles in this test.
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175 | * @return this instance, for easy chaining
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176 | * @since 11777
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177 | */
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178 | public JOSMTestRules mapStyles() {
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179 | preferences();
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180 | useMapStyles = true;
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181 | return this;
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182 | }
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183 |
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184 | @Override
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185 | public Statement apply(Statement base, Description description) {
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186 | Statement statement = base;
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187 | if (timeout > 0) {
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188 | // TODO: new DisableOnDebug(timeout)
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189 | statement = new FailOnTimeoutStatement(statement, timeout);
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190 | }
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191 | statement = new CreateJosmEnvironment(statement);
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192 | if (josmHome != null) {
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193 | statement = josmHome.apply(statement, description);
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194 | }
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195 | return statement;
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196 | }
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197 |
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198 | /**
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199 | * Set up before running a test
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200 | * @throws InitializationError If an error occured while creating the required environment.
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201 | */
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202 | protected void before() throws InitializationError {
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203 | // Tests are running headless by default.
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204 | System.setProperty("java.awt.headless", "true");
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205 |
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206 | cleanUpFromJosmFixture();
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207 |
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208 | // All tests use the same timezone.
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209 | TimeZone.setDefault(DateUtils.UTC);
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210 | // Set log level to info
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211 | Logging.setLogLevel(Logging.LEVEL_INFO);
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212 |
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213 | // Set up i18n
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214 | if (i18n != null) {
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215 | I18n.set(i18n);
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216 | }
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217 |
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218 | // Add JOSM home
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219 | if (josmHome != null) {
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220 | try {
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221 | File home = josmHome.newFolder();
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222 | System.setProperty("josm.home", home.getAbsolutePath());
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223 | } catch (IOException e) {
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224 | throw new InitializationError(e);
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225 | }
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226 | }
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227 |
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228 | // Add preferences
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229 | if (usePreferences) {
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230 | Main.pref.resetToInitialState();
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231 | Main.pref.enableSaveOnPut(false);
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232 | // No pref init -> that would only create the preferences file.
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233 | // We force the use of a wrong API server, just in case anyone attempts an upload
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234 | Main.pref.put("osm-server.url", "http://invalid");
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235 | }
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236 |
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237 | // Set Platform
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238 | if (platform) {
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239 | Main.determinePlatformHook();
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240 | }
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241 |
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242 | if (useHttps) {
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243 | try {
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244 | CertificateAmendment.addMissingCertificates();
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245 | } catch (IOException | GeneralSecurityException ex) {
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246 | throw new JosmRuntimeException(ex);
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247 | }
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248 | }
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249 |
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250 | if (useProjection) {
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251 | Main.setProjection(Projections.getProjectionByCode("EPSG:3857")); // Mercator
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252 | }
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253 |
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254 | // Set API
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255 | if (useAPI == APIType.DEV) {
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256 | Main.pref.put("osm-server.url", "http://api06.dev.openstreetmap.org/api");
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257 | } else if (useAPI == APIType.FAKE) {
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258 | FakeOsmApi api = FakeOsmApi.getInstance();
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259 | Main.pref.put("osm-server.url", api.getServerUrl());
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260 | }
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261 |
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262 | // Initialize API
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263 | if (useAPI != APIType.NONE) {
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264 | try {
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265 | OsmApi.getOsmApi().initialize(null);
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266 | } catch (OsmTransferCanceledException | OsmApiInitializationException e) {
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267 | throw new InitializationError(e);
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268 | }
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269 | }
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270 |
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271 | if (useMapStyles) {
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272 | // Reset the map paint styles.
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273 | MapPaintStyles.readFromPreferences();
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274 | }
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275 |
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276 | if (commands) {
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277 | // TODO: Implement a more selective version of this once Main is restructured.
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278 | JOSMFixture.createUnitTestFixture().init(true);
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279 | }
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280 | }
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281 |
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282 | /**
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283 | * Clean up what test not using these test rules may have broken.
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284 | */
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285 | @SuppressFBWarnings("DM_GC")
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286 | private void cleanUpFromJosmFixture() {
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287 | MemoryManagerTest.resetState(true);
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288 | Main.getLayerManager().resetState();
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289 | Main.pref.resetToInitialState();
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290 | Main.platform = null;
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291 | System.gc();
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292 | }
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293 |
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294 | /**
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295 | * Clean up after running a test
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296 | */
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297 | @SuppressFBWarnings("DM_GC")
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298 | protected void after() {
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299 | // Sync AWT Thread
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300 | GuiHelper.runInEDTAndWait(new Runnable() {
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301 | @Override
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302 | public void run() {
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303 | }
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304 | });
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305 | // Remove all layers
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306 | Main.getLayerManager().resetState();
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307 | MemoryManagerTest.resetState(allowMemoryManagerLeaks);
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308 |
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309 | // TODO: Remove global listeners and other global state.
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310 | Main.pref.resetToInitialState();
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311 | Main.platform = null;
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312 | // Parts of JOSM uses weak references - destroy them.
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313 | System.gc();
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314 | }
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315 |
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316 | private final class CreateJosmEnvironment extends Statement {
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317 | private final Statement base;
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318 |
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319 | private CreateJosmEnvironment(Statement base) {
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320 | this.base = base;
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321 | }
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322 |
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323 | @Override
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324 | public void evaluate() throws Throwable {
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325 | before();
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326 | try {
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327 | base.evaluate();
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328 | } finally {
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329 | after();
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330 | }
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331 | }
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332 | }
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333 |
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334 | enum APIType {
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335 | NONE, FAKE, DEV
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336 | }
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337 |
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338 | /**
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339 | * The junit timeout statement has problems when switchting timezones. This one does not.
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340 | * @author Michael Zangl
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341 | */
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342 | private static class FailOnTimeoutStatement extends Statement {
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343 |
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344 | private int timeout;
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345 | private Statement original;
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346 |
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347 | FailOnTimeoutStatement(Statement original, int timeout) {
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348 | this.original = original;
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349 | this.timeout = timeout;
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350 | }
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351 |
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352 | @Override
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353 | public void evaluate() throws Throwable {
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354 | TimeoutThread thread = new TimeoutThread(original);
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355 | thread.setDaemon(true);
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356 | thread.start();
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357 | thread.join(timeout);
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358 | thread.interrupt();
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359 | if (!thread.isDone) {
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360 | Throwable exception = thread.getExecutionException();
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361 | if (exception != null) {
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362 | throw exception;
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363 | } else {
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364 | throw new Exception(MessageFormat.format("Test timed out after {0}ms", timeout));
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365 | }
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366 | }
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367 | }
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368 | }
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369 |
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370 | private static final class TimeoutThread extends Thread {
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371 | public boolean isDone;
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372 | private Statement original;
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373 | private Throwable exceptionCaught;
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374 |
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375 | private TimeoutThread(Statement original) {
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376 | super("Timeout runner");
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377 | this.original = original;
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378 | }
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379 |
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380 | public Throwable getExecutionException() {
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381 | return exceptionCaught;
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382 | }
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383 |
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384 | @Override
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385 | public void run() {
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386 | try {
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387 | original.evaluate();
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388 | isDone = true;
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389 | } catch (Throwable e) {
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390 | exceptionCaught = e;
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391 | }
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392 | }
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393 | }
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394 |
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395 | private boolean isDebugMode() {
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396 | return java.lang.management.ManagementFactory.getRuntimeMXBean().
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397 | getInputArguments().toString().indexOf("-agentlib:jdwp") > 0;
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398 | }
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399 | }
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