1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.actions;
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3 |
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4 | import static org.junit.jupiter.api.Assertions.assertEquals;
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5 | import static org.junit.jupiter.api.Assertions.assertNotNull;
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6 | import static org.junit.jupiter.api.Assertions.assertNull;
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7 | import static org.junit.jupiter.api.Assertions.assertThrows;
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8 |
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9 | import org.junit.jupiter.api.BeforeEach;
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10 | import org.junit.jupiter.api.Test;
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11 | import org.junit.jupiter.api.extension.RegisterExtension;
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12 | import org.openstreetmap.josm.actions.AlignInLineAction.InvalidSelection;
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13 | import org.openstreetmap.josm.actions.AlignInLineAction.Line;
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14 | import org.openstreetmap.josm.data.coor.EastNorth;
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15 | import org.openstreetmap.josm.data.coor.LatLon;
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16 | import org.openstreetmap.josm.data.osm.DataSet;
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17 | import org.openstreetmap.josm.data.osm.Node;
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18 | import org.openstreetmap.josm.data.osm.Way;
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19 | import org.openstreetmap.josm.gui.MainApplication;
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20 | import org.openstreetmap.josm.testutils.JOSMTestRules;
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21 |
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22 | import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
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23 |
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24 | /**
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25 | * Unit tests for class {@link AlignInLineAction}.
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26 | */
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27 | final class AlignInLineActionTest {
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28 |
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29 | /**
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30 | * Setup test.
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31 | */
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32 | @RegisterExtension
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33 | @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
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34 | public JOSMTestRules test = new JOSMTestRules().main().projection();
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35 |
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36 | /** Class under test. */
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37 | private static AlignInLineAction action;
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38 |
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39 | /**
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40 | * Setup test.
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41 | */
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42 | @BeforeEach
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43 | public void setUp() {
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44 | // Enable "Align in line" feature.
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45 | action = MainApplication.getMenu().alignInLine;
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46 | action.setEnabled(true);
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47 | }
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48 |
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49 | /**
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50 | * Test case: only nodes selected, part of an open way: align these nodes on the line passing through the extremity
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51 | * nodes (the most distant in the way sequence, not the most euclidean-distant). See
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52 | * https://josm.openstreetmap.de/ticket/9605#comment:3. Note that in this test, after alignment, way is overlapping
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53 | * itself.
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54 | * @throws InvalidSelection never
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55 | */
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56 | @Test
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57 | void testNodesOpenWay() throws InvalidSelection {
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58 | DataSet dataSet = new DataSet();
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59 |
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60 | // Create test points, lower left is (0,0).
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61 | //
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62 | // 1 - - -
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63 | // - 3 - 2
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64 | // - - - -
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65 | Node point1 = new Node(new EastNorth(0, 2));
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66 | Node point2 = new Node(new EastNorth(3, 1));
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67 | Node point3 = new Node(new EastNorth(1, 1));
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68 |
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69 | // Create an open way.
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70 | createWay(dataSet, point1, point2, point3);
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71 |
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72 | // Select nodes to align.
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73 | dataSet.addSelected(point1, point2, point3);
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74 |
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75 | action.buildCommand(dataSet).executeCommand();
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76 |
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77 | // Points 1 and 3 are the extremities and must not have moved. Only point 2 must have moved.
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78 | assertCoordEq(point1, 0, 2);
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79 | assertCoordEq(point2, 2, 0);
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80 | assertCoordEq(point3, 1, 1);
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81 | }
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82 |
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83 | /**
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84 | * Test case: only nodes selected, part of a closed way: align these nodes on the line passing through the most
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85 | * distant nodes.
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86 | * @throws InvalidSelection never
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87 | */
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88 | @Test
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89 | void testNodesClosedWay() throws InvalidSelection {
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90 | DataSet dataSet = new DataSet();
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91 |
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92 | // Create test points, lower left is (0,0).
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93 | //
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94 | // 4 - 3
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95 | // - - -
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96 | // 1 - 2
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97 | Node point1 = new Node(new EastNorth(0, 0));
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98 | Node point2 = new Node(new EastNorth(2, 0));
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99 | Node point3 = new Node(new EastNorth(2, 2));
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100 | Node point4 = new Node(new EastNorth(0, 2));
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101 |
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102 | // Create a closed way.
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103 | createWay(dataSet, point1, point2, point3, point4, point1);
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104 | // Select nodes to align (point1 must be in the second position to exhibit the bug).
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105 | dataSet.addSelected(point4, point1, point2);
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106 |
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107 | action.buildCommand(dataSet).executeCommand();
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108 |
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109 | // Only point 1 must have moved.
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110 | assertCoordEq(point1, 1, 1);
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111 | assertCoordEq(point2, 2, 0);
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112 | assertCoordEq(point3, 2, 2);
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113 | assertCoordEq(point4, 0, 2);
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114 | }
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115 |
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116 | /**
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117 | * Test case: only nodes selected, part of multiple ways: align these nodes on the line passing through the most
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118 | * distant nodes.
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119 | * @throws InvalidSelection never
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120 | */
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121 | @Test
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122 | void testNodesOpenWays() throws InvalidSelection {
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123 | DataSet dataSet = new DataSet();
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124 |
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125 | // Create test points, lower left is (0,0).
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126 | //
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127 | // 1 - -
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128 | // 3 - 2
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129 | // - - 4
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130 | Node point1 = new Node(new EastNorth(0, 2));
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131 | Node point2 = new Node(new EastNorth(2, 1));
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132 | Node point3 = new Node(new EastNorth(0, 1));
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133 | Node point4 = new Node(new EastNorth(2, 0));
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134 |
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135 | // Create 2 ways.
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136 | createWay(dataSet, point1, point2);
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137 | createWay(dataSet, point3, point4);
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138 |
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139 | // Select nodes to align.
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140 | dataSet.addSelected(point1, point2, point3, point4);
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141 |
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142 | // Points must align between points 1 and 4.
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143 | action.buildCommand(dataSet).executeCommand();
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144 |
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145 | assertCoordEq(point1, 0, 2);
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146 | assertCoordEq(point2, 1.5, 0.5);
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147 | assertCoordEq(point3, 0.5, 1.5);
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148 | assertCoordEq(point4, 2, 0);
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149 | }
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150 |
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151 | /**
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152 | * Test case: only a two-nodes way selected.
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153 | * @throws InvalidSelection never
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154 | */
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155 | @Test
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156 | void testSimpleWay() throws InvalidSelection {
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157 | DataSet dataSet = new DataSet();
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158 |
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159 | // Create test points, lower left is (0,0).
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160 | //
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161 | // 1 - -
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162 | // - - 2
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163 | Node point1 = new Node(new EastNorth(0, 2));
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164 | Node point2 = new Node(new EastNorth(2, 1));
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165 |
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166 | // Creates and select a single way.
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167 | dataSet.addSelected(createWay(dataSet, point1, point2));
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168 |
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169 | // No command must be created (nothing to do)
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170 | assertNull(action.buildCommand(dataSet));
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171 | }
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172 |
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173 | /**
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174 | * Create a way made of the provided nodes and select nodes.
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175 | *
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176 | * @param dataSet Dataset in which adding nodes.
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177 | * @param nodes List of nodes to add to dataset.
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178 | * @return created way
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179 | */
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180 | private Way createWay(DataSet dataSet, Node... nodes) {
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181 | Way way = new Way();
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182 | dataSet.addPrimitive(way);
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183 |
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184 | for (Node node : nodes) {
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185 | // Add primitive to dataset only if not already included.
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186 | if (dataSet.getPrimitiveById(node) == null)
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187 | dataSet.addPrimitive(node);
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188 |
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189 | way.addNode(node);
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190 | }
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191 | return way;
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192 | }
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193 |
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194 | /**
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195 | * Assert that the provided node has the specified coordinates. If not fail the test.
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196 | *
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197 | * @param node Node to test.
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198 | * @param x X coordinate.
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199 | * @param y Y coordinate.
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200 | */
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201 | private void assertCoordEq(Node node, double x, double y) {
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202 | EastNorth coordinate = node.getEastNorth();
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203 | assertEquals(x, coordinate.getX(), LatLon.MAX_SERVER_PRECISION, "Wrong x coordinate.");
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204 | assertEquals(y, coordinate.getY(), LatLon.MAX_SERVER_PRECISION, "Wrong y coordinate.");
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205 | }
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206 |
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207 | /**
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208 | * Test that a {@link Line} can be constructed with nodes of different coordinates.
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209 | * @throws InvalidSelection never
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210 | */
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211 | @Test
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212 | void testLineDifferentCoordinates() throws InvalidSelection {
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213 | assertNotNull(new Line(new Node(new EastNorth(0, 1)),
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214 | new Node(new EastNorth(0, 2))));
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215 | assertNotNull(new Line(new Node(new EastNorth(0, 1)),
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216 | new Node(new EastNorth(1, 1))));
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217 | assertNotNull(new Line(new Node(new EastNorth(0, 1)),
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218 | new Node(new EastNorth(0+1e-150, 1+1e-150))));
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219 | }
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220 |
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221 | /**
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222 | * Test that a {@link Line} cannot be constructed with nodes of same coordinates.
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223 | * @throws InvalidSelection always
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224 | */
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225 | @Test
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226 | void testLineSameCoordinates1() throws InvalidSelection {
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227 | assertThrows(InvalidSelection.class, () -> new Line(new Node(new EastNorth(0, 1)),
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228 | new Node(new EastNorth(0, 1))));
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229 | }
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230 |
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231 | /**
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232 | * Test that a {@link Line} cannot be constructed with nodes of same coordinates.
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233 | * @throws InvalidSelection always
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234 | */
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235 | @Test
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236 | void testLineSameCoordinates2() throws InvalidSelection {
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237 | assertThrows(InvalidSelection.class, () -> new Line(new Node(new EastNorth(0, 1)),
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238 | new Node(new EastNorth(0+1e-175, 1+1e-175))));
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239 | }
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240 | }
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