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 |
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7 | import org.junit.rules.TemporaryFolder;
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8 | import org.junit.rules.TestRule;
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9 | import org.junit.rules.Timeout;
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10 | import org.junit.runner.Description;
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11 | import org.junit.runners.model.InitializationError;
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12 | import org.junit.runners.model.Statement;
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13 | import org.openstreetmap.josm.Main;
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14 | import org.openstreetmap.josm.gui.layer.MainLayerManager;
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15 | import org.openstreetmap.josm.gui.util.GuiHelper;
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16 | import org.openstreetmap.josm.io.OsmApi;
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17 | import org.openstreetmap.josm.io.OsmApiInitializationException;
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18 | import org.openstreetmap.josm.io.OsmTransferCanceledException;
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19 | import org.openstreetmap.josm.tools.I18n;
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20 |
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21 | /**
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22 | * This class runs a test in an environment that resembles the one used by the JOSM main application.
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23 | * <p>
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24 | * 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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25 | * For example, invoking {@link #preferences()} gives you access to the (default) preferences.
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26 | *
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27 | * @author Michael Zangl
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28 | */
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29 | public class JOSMTestRules implements TestRule {
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30 | //We should make this the default when running from ant: Timeout.seconds(10);
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31 | private Timeout timeout = null;
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32 | private TemporaryFolder josmHome;
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33 | private boolean usePreferences = false;
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34 | private APIType useAPI = APIType.NONE;
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35 | private String i18n = null;
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36 | private boolean platform;
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37 |
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38 | /**
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39 | * Disable the default timeout for this test. Use with care.
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40 | * @return this instance, for easy chaining
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41 | */
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42 | public JOSMTestRules noTimeout() {
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43 | timeout = null;
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44 | return this;
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45 | }
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46 |
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47 | /**
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48 | * Set a timeout for all tests in this class. Local method timeouts may only reduce this timeout.
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49 | * @param millis The timeout duration in milliseconds.
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50 | * @return this instance, for easy chaining
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51 | */
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52 | public JOSMTestRules timeout(int millis) {
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53 | timeout = Timeout.millis(millis);
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54 | return this;
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55 | }
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56 |
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57 | /**
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58 | * Enable the use of default preferences.
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59 | * @return this instance, for easy chaining
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60 | */
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61 | public JOSMTestRules preferences() {
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62 | josmHome();
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63 | usePreferences = true;
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64 | return this;
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65 | }
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66 |
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67 | /**
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68 | * Set JOSM home to a valid, empty directory.
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69 | * @return this instance, for easy chaining
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70 | */
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71 | private JOSMTestRules josmHome() {
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72 | josmHome = new TemporaryFolder();
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73 | return this;
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74 | }
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75 |
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76 | /**
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77 | * Enables the i18n module for this test in english.
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78 | * @return this instance, for easy chaining
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79 | */
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80 | public JOSMTestRules i18n() {
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81 | return i18n("en");
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82 | }
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83 |
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84 | /**
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85 | * Enables the i18n module for this test.
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86 | * @param language The language to use.
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87 | * @return this instance, for easy chaining
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88 | */
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89 | public JOSMTestRules i18n(String language) {
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90 | i18n = language;
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91 | return this;
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92 | }
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93 |
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94 | /**
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95 | * Enable {@link Main#platform} global variable.
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96 | * @return this instance, for easy chaining
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97 | */
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98 | public JOSMTestRules platform() {
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99 | platform = true;
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100 | return this;
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101 | }
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102 |
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103 | /**
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104 | * Enable the dev.openstreetmap.org API for this test.
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105 | * @return this instance, for easy chaining
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106 | */
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107 | public JOSMTestRules devAPI() {
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108 | preferences();
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109 | useAPI = APIType.DEV;
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110 | return this;
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111 | }
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112 |
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113 | /**
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114 | * Use the {@link FakeOsmApi} for testing.
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115 | * @return this instance, for easy chaining
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116 | */
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117 | public JOSMTestRules fakeAPI() {
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118 | useAPI = APIType.FAKE;
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119 | return this;
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120 | }
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121 |
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122 | @Override
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123 | public Statement apply(final Statement base, Description description) {
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124 | Statement statement = new Statement() {
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125 | @Override
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126 | public void evaluate() throws Throwable {
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127 | before();
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128 | try {
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129 | base.evaluate();
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130 | } finally {
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131 | after();
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132 | }
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133 | }
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134 | };
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135 | if (timeout != null) {
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136 | statement = timeout.apply(statement, description);
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137 | }
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138 | if (josmHome != null) {
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139 | statement = josmHome.apply(statement, description);
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140 | }
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141 | return statement;
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142 | }
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143 |
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144 | /**
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145 | * Set up before running a test
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146 | * @throws InitializationError If an error occured while creating the required environment.
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147 | */
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148 | protected void before() throws InitializationError {
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149 | // Tests are running headless by default.
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150 | System.setProperty("java.awt.headless", "true");
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151 |
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152 | // Set up i18n
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153 | if (i18n != null) {
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154 | I18n.set(i18n);
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155 | }
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156 |
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157 | // Add JOSM home
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158 | if (josmHome != null) {
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159 | try {
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160 | File home = josmHome.newFolder();
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161 | System.setProperty("josm.home", home.getAbsolutePath());
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162 | } catch (IOException e) {
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163 | throw new InitializationError(e);
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164 | }
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165 | }
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166 |
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167 | // Add preferences
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168 | if (usePreferences) {
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169 | Main.initApplicationPreferences();
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170 | Main.pref.enableSaveOnPut(false);
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171 | // No pref init -> that would only create the preferences file.
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172 | // We force the use of a wrong API server, just in case anyone attempts an upload
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173 | Main.pref.put("osm-server.url", "http://invalid");
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174 | }
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175 |
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176 | // Set API
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177 | if (useAPI == APIType.DEV) {
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178 | Main.pref.put("osm-server.url", "http://api06.dev.openstreetmap.org/api");
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179 | } else if (useAPI == APIType.FAKE) {
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180 | FakeOsmApi api = FakeOsmApi.getInstance();
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181 | Main.pref.put("osm-server.url", api.getServerUrl());
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182 | }
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183 |
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184 | // Initialize API
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185 | if (useAPI != APIType.NONE) {
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186 | try {
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187 | OsmApi.getOsmApi().initialize(null);
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188 | } catch (OsmTransferCanceledException | OsmApiInitializationException e) {
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189 | throw new InitializationError(e);
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190 | }
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191 | }
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192 |
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193 | // Set Platform
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194 | if (platform) {
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195 | Main.determinePlatformHook();
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196 | }
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197 | }
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198 |
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199 | /**
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200 | * Clean up after running a test
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201 | */
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202 | protected void after() {
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203 | // Sync AWT Thread
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204 | GuiHelper.runInEDTAndWait(new Runnable() {
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205 | @Override
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206 | public void run() {
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207 | }
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208 | });
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209 | // Remove all layers
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210 | MainLayerManager lm = Main.getLayerManager();
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211 | while (!lm.getLayers().isEmpty()) {
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212 | lm.removeLayer(lm.getLayers().get(0));
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213 | }
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214 |
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215 | // TODO: Remove global listeners and other global state.
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216 |
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217 | Main.pref = null;
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218 | Main.platform = null;
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219 | // Parts of JOSM uses weak references - destroy them.
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220 | System.gc();
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221 | }
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222 |
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223 | enum APIType {
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224 | NONE, FAKE, DEV
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225 | }
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226 | }
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