openlayers/tests/Format/GeoJSON.html

   1 <html>
   2 <head>
   3     <script src="../../lib/OpenLayers.js"></script>
   4     <script type="text/javascript">
   5
   6     var poly_content = '{"type": "FeatureCollection", "features": [{"geometry": {"type": "Polygon", "coordinates": [[[-131.484375, -5.9765625], [-112.5, -58.0078125], [-32.34375, -50.2734375], [-114.609375, 52.3828125], [-167.34375, -35.5078125], [-146.953125, -57.3046875], [-139.921875, -34.1015625], [-131.484375, -5.9765625]]]}, "type": "Feature", "id": 562, "properties": {"strokeColor": "red", "title": "Feature 2", "author": "Your Name Here"}}]}';
   7     var null_geom_feature = '{"type":"Feature","id":573,"properties":{"strokeColor":"blue","title":"Feature 5","author":"Your Name Here"},"geometry":null}';
   8     var point_feature = '{"geometry": {"type": "Point", "coordinates": [94.21875, 72.94921875]}, "type": "Feature", "id": 573, "properties": {"strokeColor": "blue", "title": "Feature 5", "author": "Your Name Here"}}';
   9     var line_feature = '{"type": "FeatureCollection", "features": [{"geometry": {"type": "LineString", "coordinates": [[-27.0703125, 59.4140625], [-77.6953125, 20.7421875], [30.5859375, -36.2109375], [67.1484375, 34.8046875]]}, "type": "Feature", "id": 559, "properties": {"strokeColor": "red", "title": "Feature 1", "author": "Your Name Here"}}]}';
  10     var multiple_features = '{"type": "FeatureCollection", "features": [{"geometry": {"type": "Point", "coordinates": [-91.0546875, 43.9453125]}, "type": "Feature", "id": 577, "properties": {"strokeColor": "red", "title": "Feature 2", "image": "foo.gif", "author": "Your Name Here"}}, {"geometry": {"type": "LineString", "coordinates": [[91.40625, -1.40625], [116.015625, -42.890625], [153.28125, -28.125], [108.984375, 11.25], [75.234375, 8.4375], [76.640625, 9.140625], [67.5, -36.5625], [67.5, -35.859375]]}, "type": "Feature", "id": 576, "properties": {"strokeColor": "red", "title": "Feature 1", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [139.5703125, 57.48046875]}, "type": "Feature", "id": 575, "properties": {"strokeColor": "blue", "title": "Feature 7", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [107.2265625, 82.44140625]}, "type": "Feature", "id": 574, "properties": {"strokeColor": "blue", "title": "Feature 6", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [94.21875, 72.94921875]}, "type": "Feature", "id": 573, "properties": {"strokeColor": "blue", "title": "Feature 5", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [116.3671875, 61.69921875]}, "type": "Feature", "id": 572, "properties": {"strokeColor": "blue", "title": "Feature 4", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [145.8984375, 73.65234375]}, "type": "Feature", "id": 571, "properties": {"strokeColor": "blue", "title": "Feature 3", "author": "Your Name Here"}}, {"geometry": {"type": "Polygon", "coordinates": [[[32.34375, 52.20703125], [87.1875, 70.13671875], [122.6953125, 37.44140625], [75.234375, 42.36328125], [40.078125, 42.36328125], [28.828125, 48.33984375], [18.6328125, 56.77734375], [23.203125, 65.56640625], [32.34375, 52.20703125]]]}, "type": "Feature", "id": 570, "properties": {"strokeColor": "blue", "title": "Feature 2", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [62.578125, -53.4375]}, "type": "Feature", "id": 569, "properties": {"strokeColor": "red", "title": "Feature 3", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [121.640625, 16.875]}, "type": "Feature", "id": 568, "properties": {"strokeColor": "red", "title": "Feature 6", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [135.703125, 8.4375]}, "type": "Feature", "id": 567, "properties": {"strokeColor": "red", "title": "Feature 4", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [137.109375, 48.515625]}, "type": "Feature", "id": 566, "properties": {"strokeColor": "red", "title": "Feature 274", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [0, 5]}, "type": "Feature", "id": 565, "properties": {}}, {"geometry": {"type": "Point", "coordinates": [0, 5]}, "type": "Feature", "id": 564, "properties": {}}, {"geometry": {"type": "Point", "coordinates": [0, 5]}, "type": "Feature", "id": 563, "properties": {}}, {"geometry": {"type": "Polygon", "coordinates": [[[-131.484375, -5.9765625], [-112.5, -58.0078125], [-32.34375, -50.2734375], [-114.609375, 52.3828125], [-167.34375, -35.5078125], [-146.953125, -57.3046875], [-139.921875, -34.1015625], [-131.484375, -5.9765625]]]}, "type": "Feature", "id": 562, "properties": {"strokeColor": "red", "title": "Feature 2", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [48.8671875, -15.8203125]}, "type": "Feature", "id": 560, "properties": {"strokeColor": "red", "title": "Feature 2", "author": "Your Name Here"}}, {"geometry": {"type": "LineString", "coordinates": [[-27.0703125, 59.4140625], [-77.6953125, 20.7421875], [30.5859375, -36.2109375], [67.1484375, 34.8046875]]}, "type": "Feature", "id": 559, "properties": {"strokeColor": "red", "title": "Feature 1", "author": "Your Name Here"}}, {"geometry": {"type": "Point", "coordinates": [12.65625, 16.5234375]}, "type": "Feature", "id": 558, "properties": {"styleUrl": "#allstyle", "title": "Feature 1", "strokeColor": "red", "author": "Your Name Here"}}]}';
  11     var parser = new OpenLayers.Format.GeoJSON();
  12     var data;
  13
  14     function test_Format_GeoJSON_constructor(t) {
  15         t.plan(4);
  16
  17         var options = {'foo': 'bar'};
  18         var format = new OpenLayers.Format.GeoJSON(options);
  19         t.ok(format instanceof OpenLayers.Format.GeoJSON,
  20              "new OpenLayers.Format.GeoJSON returns object" );
  21         t.eq(format.foo, "bar", "constructor sets options correctly");
  22         t.eq(typeof format.read, "function", "format has a read function");
  23         t.eq(typeof format.write, "function", "format has a write function");
  24     }
  25
  26     function test_Format_GeoJSON_null_geom(t) {
  27         t.plan(2);
  28         var f = new OpenLayers.Format.GeoJSON();
  29         var fs = f.read(null_geom_feature);
  30         t.ok(fs[0].geometry == null, "Reading feature with null geom works okay");
  31         t.eq(f.write(fs[0]), null_geom_feature, "round trip null okay");
  32
  33     }
  34     function test_Format_GeoJSON_valid_type(t) {
  35         t.plan(14);
  36
  37         OpenLayers.Console.error = function(error) { window.global_error = error;};
  38         var types = ["Point", "MultiPoint", "LineString", "MultiLineString", "Polygon", "MultiPolygon", "Box", "GeometryCollection"];
  39         for (var i = 0; i < types.length; i++) {
  40             t.ok(parser.isValidType({'type':types[i]}, "Geometry"), "Geometry with type " + types[i] + " is valid");
  41         }
  42         t.ok(!parser.isValidType({'type':"foo"}, "Geometry"), "Geometry with type foo is not valid");
  43         t.eq(global_error, "Unsupported geometry type: foo", "error message set correctly for 'foo' geom.");
  44         t.ok(parser.isValidType({}, "FeatureCollection"), "Feature collection type is always valid");
  45         t.ok(parser.isValidType({'type':"GeometryCollection"}, "GeometryCollection"), "Geometry Collection type is valid");
  46         t.ok(!parser.isValidType({'type':"GeometryCollection2"}, "GeometryCollection"), "Geometry Collection 2 type is invalid");
  47         t.eq(global_error, "Cannot convert types from GeometryCollection2 to GeometryCollection", "error message set correctly for bad geometrycollection type");
  48     }
  49
  50     function test_Format_GeoJSON_point(t) {
  51         t.plan(3);
  52
  53         data = parser.read(point_feature);
  54         t.eq(data[0].fid, 573, "Fid is correct on point feature");
  55         t.eq(data[0].geometry.x, 94.21875, 'Reading point feature gives correct x');
  56         data = parser.read(point_feature, "Feature");
  57         t.eq(data.fid, 573, 'Reading point feature with type gives feature instead of array of features ');
  58     }
  59
  60     function test_Format_GeoJSON_line(t) {
  61         t.plan(5);
  62
  63         data = parser.read(line_feature);
  64         t.eq(data[0].fid, 559, "Fid is correct on line feature");
  65         t.eq(data[0].geometry.components.length, 4, 'Reading line feature gives correct length');
  66         t.eq(data[0].geometry.CLASS_NAME, 'OpenLayers.Geometry.LineString', 'Reading line feature gives correct class');
  67         t.eq(data[0].geometry.components[0].x, -27.0703125, 'Reading line feature gives correct x');
  68         t.eq(data[0].geometry.components[0].y, 59.4140625, 'Reading line feature gives correct y');
  69     }
  70
  71     function test_Format_GeoJSON_poly(t) {
  72         t.plan(2);
  73
  74         data = parser.read(poly_content);
  75         t.eq(data[0].fid, 562, "poly id is correct");
  76         t.eq(data[0].geometry.components[0].components.length, 8,
  77                 'Reading polygon first ring  on feature from featurecollection gives correct length');
  78     }
  79
  80     function test_Format_GeoJSON_multipoint(t) {
  81         t.plan(5);
  82
  83         var multipoint = {
  84            "type": "MultiPoint",
  85            "coordinates": [
  86                [100.0, 0.0], [101.0, 1.0]
  87            ]
  88         };
  89         data = parser.read(multipoint, "Geometry");
  90         t.eq(data.components.length, 2,
  91             "Right number of components");
  92         t.eq(data.components[0].CLASS_NAME, "OpenLayers.Geometry.Point", "First component is point");
  93         t.eq(data.components[1].CLASS_NAME, "OpenLayers.Geometry.Point", "Second component is point");
  94         t.eq(data.components[1].x, 101, "x of second component is right");
  95         t.eq(data.components[1].y, 1, "y of second component is right");
  96     }
  97
  98     function test_Format_GeoJSON_multiline(t) {
  99         t.plan(3);
 100
 101         var multiline = {
 102            "type": "MultiLineString",
 103            "coordinates": [
 104                [ [100.0, 0.0], [101.0, 1.0] ],
 105                [ [102.0, 2.0], [103.0, 3.0] ]
 106            ]
 107         };
 108         data = parser.read(multiline, "Geometry");
 109         t.eq(data.CLASS_NAME, "OpenLayers.Geometry.MultiLineString", "Correct class retrieved");
 110         t.eq(data.components[0].components[0].CLASS_NAME, "OpenLayers.Geometry.Point", "correct type of components");
 111         t.eq(data.components[0].CLASS_NAME, "OpenLayers.Geometry.LineString", "correct type of components");
 112     }
 113
 114     function test_Format_GeoJSON_multipol(t) {
 115         t.plan(2);
 116
 117         var multipol = {
 118             "type": "MultiPolygon",
 119             "coordinates": [
 120                 [
 121                     [ [102.0, 2.0], [103.0, 2.0], [103.0, 3.0], [102.0, 3.0], [102.0, 2.0] ]
 122                 ],
 123                 [
 124                     [ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0] ],
 125                     [ [100.2, 0.2], [100.8, 0.2], [100.8, 0.8], [100.2, 0.8], [100.2, 0.2] ]
 126                 ]
 127             ]
 128         };
 129         OpenLayers.Console.error = function(error) { window.global_error = error; };
 130         data = parser.read(multipol, "Geometry");
 131         t.eq(data.CLASS_NAME, "OpenLayers.Geometry.MultiPolygon", "Correct class retrieved");
 132         t.eq(data.components[1].components[0].components[0].CLASS_NAME, "OpenLayers.Geometry.Point", "correct type of components");
 133     }
 134
 135     function test_Format_GeoJSON_box(t) {
 136         t.plan(6);
 137
 138         var box = {
 139             "type": "Box",
 140             "coordinates": [[100.0, 0.0], [101.0, 1.0]]
 141         };
 142         var poly = parser.read(box, "Geometry");
 143         t.eq(poly.CLASS_NAME, "OpenLayers.Geometry.Polygon", "Box creates polygon");
 144         t.eq(poly.components[0].components[1].x, 101, "x of lower right is correct");
 145         t.eq(poly.components[0].components[1].y, 0, "y of lower right is correct");
 146         t.eq(poly.components[0].components[3].x, 100, "x of upper left is correct");
 147         t.eq(poly.components[0].components[3].y, 1, "y of upper left is correct");
 148         box = parser.write(poly );
 149         t.ok(box.search("Polygon") != -1 , "Serializes back to polygon");
 150     }
 151
 152     // This test is from the geom_collection example on geojson spec.
 153     function test_Format_GeoJSON_collection(t) {
 154        t.plan(12);
 155
 156        var geomcol = {
 157            "type": "GeometryCollection",
 158            "geometries": [
 159                {
 160                    "type": "Point",
 161                    "coordinates": [100.0, 0.0]
 162                },
 163                {
 164                    "type": "LineString",
 165                    "coordinates": [
 166                        [101.0, 0.0], [102.0, 1.0]
 167                    ]
 168                }
 169            ]
 170         };
 171         data = parser.read(geomcol, "Geometry");
 172         t.eq(data.CLASS_NAME, "OpenLayers.Geometry.Collection",
 173              "GeometryCollection deserialized into geometry.collection");
 174         t.eq(data.components[0].CLASS_NAME, "OpenLayers.Geometry.Point",
 175              "First geom is correct type");
 176         t.eq(data.components[0].x, 100,
 177              "First geom in geom collection has correct x");
 178         t.eq(data.components[0].y, 0,
 179              "First geom in geom collection has correct x");
 180
 181         t.eq(data.components[1].CLASS_NAME, "OpenLayers.Geometry.LineString",
 182              "Second geom in geom collection is point linestring");
 183         t.eq(data.components[1].components.length, 2,
 184              "linestring is correct length");
 185         t.eq(data.components[1].components[1].x, 102,
 186              "linestring is correct x end");
 187         t.eq(data.components[1].components[1].y, 1,
 188              "linestring is correct y end");
 189
 190         data = parser.read(geomcol, "FeatureCollection");
 191         t.eq(data[0].CLASS_NAME, "OpenLayers.Feature.Vector",
 192              "GeometryCollection can be read in as a feature collection");
 193         t.eq(data[0].geometry.CLASS_NAME, "OpenLayers.Geometry.Collection",
 194              "feature contains the correct geometry type");
 195         var feature = {
 196            "type": "Feature",
 197            "geometry": {
 198               "type": "GeometryCollection",
 199               "geometries": [
 200                   {
 201                     "type": "Point",
 202                     "coordinates": [100.0, 0.0]
 203                   },
 204                   {
 205                     "type": "LineString",
 206                     "coordinates": [
 207                         [101.0, 0.0], [102.0, 1.0]
 208                     ]
 209                   }
 210               ]
 211            },
 212            "properties": {
 213                "prop0": "value0",
 214                "prop1": "value1"
 215            }
 216         };
 217         data = parser.read(feature, "Feature");
 218         t.eq(data.geometry.CLASS_NAME, "OpenLayers.Geometry.Collection", "Geometry of feature is a collection");
 219         var l = new OpenLayers.Layer.Vector();
 220         l.addFeatures(data);
 221         t.ok(true, "adding a feature with geomcollection to layer doesn't cause error.");
 222     }
 223
 224     function test_Format_GeoJSON_multipleFeatures(t) {
 225         t.plan(2);
 226
 227         var feats = parser.read(multiple_features);
 228         t.eq(feats.length, 19, "parsing a feature collection returns the correct number of features.");
 229         var types = {'Point':0, 'LineString':0, 'Polygon':0};
 230         for(var i = 0; i < feats.length; i++) {
 231             var type = feats[i].geometry.CLASS_NAME.replace("OpenLayers.Geometry.", "");
 232             types[type]++;
 233         }
 234         t.eq(types, {'Point':15, 'Polygon': 2, 'LineString':2}, "Correct number of each type");
 235     }
 236
 237     function test_Format_GeoJSON_writeWithCRS(t) {
 238         t.plan(2);
 239         var feature = new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(1,2));
 240         feature.fid = 0;
 241         var output = '{"type":"Feature","id":0,"properties":{},"geometry":{"type":"Point","coordinates":[1,2]},"crs":{"type":"OGC","properties":{"urn":"urn:ogc:def:crs:OGC:1.3:CRS84"}}}';
 242         var layer = new OpenLayers.Layer.Vector();
 243         layer.projection = "EPSG:4326";
 244         feature.layer = layer;
 245         var parser = new OpenLayers.Format.GeoJSON();
 246         var test_out = parser.write(feature);
 247         t.eq(test_out, output, "Output is equal for vector with layer in EPSG:4326 ");
 248         feature.layer.projection = "EPSG:2805";
 249         output = '{"type":"Feature","id":0,"properties":{},"geometry":{"type":"Point","coordinates":[1,2]},"crs":{"type":"EPSG","properties":{"code":2805}}}';
 250         test_out = parser.write(feature);
 251         t.eq(test_out, output, "Output is equal for vector with point");
 252     }
 253
 254     function test_Format_GeoJSON_write(t) {
 255         t.plan(10);
 256
 257         var line_object = {
 258             "type": "FeatureCollection",
 259             "features": [
 260                 {
 261                     "geometry": {
 262                         "type": "LineString",
 263                         "coordinates": [
 264                             [-27.0703125, 59.4140625],
 265                             [-77.6953125, 20.7421875],
 266                             [30.5859375, -36.2109375],
 267                             [67.1484375, 34.8046875]
 268                         ]
 269                     },
 270                     "type": "Feature",
 271                     "id": 559,
 272                     "properties": {
 273                         "strokeColor": "red",
 274                         "title": "Feature 1",
 275                         "author": "Your Name Here"
 276                     }
 277                 }
 278             ]
 279         };
 280         data = parser.read(line_object);
 281         out = parser.write(data);
 282         serialized = '{"type":"FeatureCollection","features":[{"type":"Feature","id":559,"properties":{"strokeColor":"red","title":"Feature 1","author":"Your Name Here"},"geometry":{"type":"LineString","coordinates":[[-27.0703125,59.4140625],[-77.6953125,20.7421875],[30.5859375,-36.2109375],[67.1484375,34.8046875]]}}]}';
 283         t.eq(out, serialized, "input and output on line collections are the same");
 284
 285         var serialize_tests = [
 286             [
 287                 new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(1,2)),
 288                 '{"type":"Feature","id":0,"properties":{},"geometry":{"type":"Point","coordinates":[1,2]}}'
 289             ],
 290             [
 291                 new OpenLayers.Geometry.Point(1,2),
 292                 '{"type":"Point","coordinates":[1,2]}'
 293             ],
 294             [
 295                 new OpenLayers.Geometry.MultiPoint([
 296                     new OpenLayers.Geometry.Point(1,2)
 297                 ]),
 298                 '{"type":"MultiPoint","coordinates":[[1,2]]}'
 299             ],
 300             [
 301                 new OpenLayers.Geometry.LineString([
 302                     new OpenLayers.Geometry.Point(1,2),
 303                     new OpenLayers.Geometry.Point(3,4)
 304                 ]),
 305                 '{"type":"LineString","coordinates":[[1,2],[3,4]]}'
 306             ],
 307             [
 308                 new OpenLayers.Geometry.Polygon([
 309                     new OpenLayers.Geometry.LinearRing([
 310                         new OpenLayers.Geometry.Point(1,2),
 311                         new OpenLayers.Geometry.Point(3,4),
 312                         new OpenLayers.Geometry.Point(5,6)
 313                     ])
 314                 ]),
 315                 '{"type":"Polygon","coordinates":[[[1,2],[3,4],[5,6],[1,2]]]}'
 316             ],
 317             [
 318                 new OpenLayers.Geometry.Collection([
 319                     new OpenLayers.Geometry.Polygon([
 320                         new OpenLayers.Geometry.LinearRing([
 321                             new OpenLayers.Geometry.Point(1,2),
 322                             new OpenLayers.Geometry.Point(3,4),
 323                             new OpenLayers.Geometry.Point(5,6)
 324                         ])
 325                     ]),
 326                     new OpenLayers.Geometry.LineString([
 327                         new OpenLayers.Geometry.Point(1,2),
 328                         new OpenLayers.Geometry.Point(3,4)
 329                     ]),
 330                     new OpenLayers.Geometry.Point(1,2)
 331                 ]),
 332                 '{"type":"GeometryCollection","geometries":[{"type":"Polygon","coordinates":[[[1,2],[3,4],[5,6],[1,2]]]},{"type":"LineString","coordinates":[[1,2],[3,4]]},{"type":"Point","coordinates":[1,2]}]}'
 333             ]
 334         ];
 335         serialize_tests[0][0].fid = 0;
 336         multiline = new OpenLayers.Geometry.MultiLineString([serialize_tests[3][0], serialize_tests[3][0]]);
 337         serialize_tests.push([multiline, '{"type":"MultiLineString","coordinates":[[[1,2],[3,4]],[[1,2],[3,4]]]}']);
 338         multipolygon = new OpenLayers.Geometry.MultiPolygon([serialize_tests[4][0],  serialize_tests[4][0]]);
 339         serialize_tests.push([multipolygon, '{"type":"MultiPolygon","coordinates":[[[[1,2],[3,4],[5,6],[1,2]]],[[[1,2],[3,4],[5,6],[1,2]]]]}']);
 340         serialize_tests.push([ [ serialize_tests[0][0] ], '{"type":"FeatureCollection","features":[{"type":"Feature","id":0,"properties":{},"geometry":{"type":"Point","coordinates":[1,2]}}]}' ]);
 341         for (var i = 0; i < serialize_tests.length; i++) {
 342             var input = serialize_tests[i][0];
 343             var output = serialize_tests[i][1];
 344             test_out = parser.write(input);
 345             t.eq(test_out, output, "Serializing " + input.toString() + " saved correctly.");
 346         }
 347     }
 348
 349     function test_Format_GeoJSON_read_object(t) {
 350         t.plan(1);
 351
 352         var line_object = {
 353             "type": "FeatureCollection",
 354             "features": [
 355                 {
 356                     "geometry": {
 357                         "type": "LineString",
 358                         "coordinates": [
 359                             [-27.0703125, 59.4140625],
 360                             [-77.6953125, 20.7421875],
 361                             [30.5859375, -36.2109375],
 362                             [67.1484375, 34.8046875]
 363                         ]
 364                     },
 365                     "type": "Feature",
 366                     "id": 559,
 367                     "properties": {
 368                         "strokeColor": "red",
 369                         "title": "Feature 1",
 370                         "author": "Your Name Here"
 371                     }
 372                 }
 373             ]
 374         };
 375         data = parser.read(line_object);
 376         t.eq(data[0].fid, 559, "Can read data from an object correctly.");
 377     }
 378
 379     function test_Format_GeoJSON_read_attributes(t) {
 380         t.plan(3);
 381
 382         var parser = new OpenLayers.Format.GeoJSON();
 383         data = parser.read(line_feature);
 384         t.eq(data[0].attributes['strokeColor'], 'red', 'read strokeColor attribute properly');
 385         t.eq(data[0].attributes['title'], 'Feature 1', 'read title attribute properly');
 386         t.eq(data[0].attributes['author'], 'Your Name Here', 'read author attribute properly');
 387     }
 388
 389     function test_read_bbox(t) {
 390         t.plan(8);
 391
 392         var f;
 393         parser = new OpenLayers.Format.GeoJSON();
 394
 395         // 4 tests
 396         f = '{"geometry": {"type": "Point", "coordinates": [94.21875, 72.94921875], "bbox": [94.21875, 72.94921875, 94.21875, 72.94921875]}, "type": "Feature", "id": 573, "properties": {}, "bbox": [95.0, 73.0]}';
 397         data = parser.read(f);
 398         t.eq(data[0].bounds.left, 94.21875, "read left bound is correct");
 399         t.eq(data[0].bounds.bottom, 72.94921875, "read bottom left bound is correct");
 400         t.eq(data[0].bounds.right, 94.21875, "read right bound is correct");
 401         t.eq(data[0].bounds.top, 72.94921875, "read top left bound is correct");
 402
 403         // 4 tests
 404         f = '{"geometry": {"type": "Point", "coordinates": [94.21875, 72.94921875]}, "type": "Feature", "id": 573, "properties": {}, "bbox": [95.0, 73.0, 96.0, 74.0]}';
 405         data = parser.read(f);
 406         t.eq(data[0].bounds.left, 95.0, "read left bound is correct");
 407         t.eq(data[0].bounds.bottom, 73.0, "read bottom left bound is correct");
 408         t.eq(data[0].bounds.right, 96.0, "read right bound is correct");
 409         t.eq(data[0].bounds.top, 74.0, "read top left bound is correct");
 410     }
 411
 412     </script>
 413 </head>
 414 <body>
 415 </body>
 416 </html>