Files
openlayers/tests/Geometry.html

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<html>
<head>
<script src="../lib/OpenLayers.js"></script>
<script src="data/geos_wkt_intersects.js"></script>
<script type="text/javascript">
var map;
function test_Geometry_constructor (t) {
t.plan( 2 );
var g = new OpenLayers.Geometry();
t.eq(g.CLASS_NAME, "OpenLayers.Geometry", "correct CLASS_NAME")
t.ok(OpenLayers.String.startsWith(g.id, "OpenLayers.Geometry_"),
"id correctly set");
}
function test_Geometry_clone(t) {
t.plan(2);
var geometry = new OpenLayers.Geometry();
var clone = geometry.clone();
t.eq(clone.CLASS_NAME, "OpenLayers.Geometry", "correct CLASS_NAME")
t.ok(OpenLayers.String.startsWith(clone.id, "OpenLayers.Geometry_"),
"id correctly set");
}
function test_Geometry_setBounds(t) {
t.plan( 2 );
var g = new OpenLayers.Geometry();
//null object
g.setBounds(null);
t.ok(g.bounds == null, "setbounds with null value does not crash or set bounds");
//no classname object
g_clone = {};
var object = {
'clone': function() { return g_clone; }
};
g.setBounds(object);
t.ok(g.bounds == g_clone, "setbounds with valid object sets bounds, calls clone");
}
function test_Geometry_extendBounds(t) {
t.plan(9);
OpenLayers.Bounds.prototype._extend =
OpenLayers.Bounds.prototype.extend;
OpenLayers.Bounds.prototype.extend = function(b) {
g_extendBounds = b;
};
var g = new OpenLayers.Geometry();
//this.bounds null (calculateBounds(), setBounds() called)
g.setBounds = function(b) { g_setBounds = b; };
g.calculateBounds = function() { g_calculateBounds = {}; };
var object = {};
g_setBounds = null;
g_calculateBounds = null;
g_extendBounds = null;
g.extendBounds(object);
t.ok(g_calculateBounds != null, "calculateBounds() called when this.bounds is null");
t.ok(g_setBounds == object, "setBounds() called when this.bounds is null and calculateBounds() is null too");
t.ok(g_extendBounds != object, "this.bounds.extend() not called when this.bounds is null and calculateBounds() is null too");
//this.bounds null (calculateBounds() sets this.bounds:
// - setBounds() not called
// - this.bounds.extend() called
g_calcBounds = new OpenLayers.Bounds(1,2,3,4);
g.calculateBounds = function() {
g_calculateBounds = {};
this.bounds = g_calcBounds;
};
var object = {};
g_setBounds = null;
g_calculateBounds = null;
g_extendBounds = null;
g.extendBounds(object);
t.ok(g_calculateBounds != null, "calculateBounds() called when this.bounds is null");
t.ok(g_setBounds == null, "setBounds() not called when this.bounds is null and calculateBounds() sets this.bounds");
t.ok(g_extendBounds == object, "this.bounds.extend() called when this.bounds is null and calculateBounds() sets this.bounds");
//this.bounds non-null thus extend()
// - setBounds() not called
// - this.bounds.extend() called
g_setBounds = null;
g_calculateBounds = null;
g_extendBounds = null;
g.extendBounds(object);
t.ok(g_calculateBounds == null, "calculateBounds() not called when this.bounds is non null");
t.ok(g_setBounds == null, "setBounds() not called when this.bounds is nonnull");
t.ok(g_extendBounds == object, "this.bounds.extend() called when this.bounds is non-null");
OpenLayers.Bounds.prototype.extend =
OpenLayers.Bounds.prototype._extend;
}
function test_Geometry_getBounds(t) {
t.plan(1);
var g = new OpenLayers.Geometry();
var testBounds = new OpenLayers.Bounds(1,2,3,4);
g.bounds = testBounds.clone();
t.ok(g.getBounds().equals(testBounds), "getBounds works");
}
function test_Geometry_atPoint(t) {
t.plan(6);
var g = new OpenLayers.Geometry();
var lonlat = null;
var lon = 5;
var lat = 10;
//null lonlat
g.bounds = new OpenLayers.Bounds();
var atPoint = g.atPoint(lonlat, lon, lat);
t.ok(!atPoint, "null lonlat")
//null this.bounds
g.bounds = null;
lonlat = new OpenLayers.LonLat(1,2);
atPoint = g.atPoint(lonlat, lon, lat);
t.ok(!atPoint, "null this.bounds")
//toleranceLon/toleranceLat
//default toleranceLon/toleranceLat
OpenLayers.Bounds.prototype._containsLonLat = OpenLayers.Bounds.prototype.containsLonLat;
g_Return = {};
OpenLayers.Bounds.prototype.containsLonLat = function(ll) {
g_bounds = this;
return g_Return;
}
var testBounds = new OpenLayers.Bounds(10,20,30,40);
g.bounds = testBounds.clone();
lonlat = new OpenLayers.LonLat(20,30);
g_bounds = null;
atPoint = g.atPoint(lonlat);
t.ok(g_bounds.equals(testBounds), "default toleranceLon/Lat are 0");
t.ok(atPoint == g_Return, "default toleranceLon/Lat returns correctly");
//real toleranceLon/toleranceLat
var testBounds = new OpenLayers.Bounds(10,20,30,40);
g.bounds = testBounds.clone();
lonlat = new OpenLayers.LonLat(20,30);
g_bounds = null;
atPoint = g.atPoint(lonlat, lon, lat);
testBounds.left -= lon;
testBounds.bottom -= lat;
testBounds.right += lon;
testBounds.top += lat;
t.ok(g_bounds.equals(testBounds), "real toleranceLon/Lat are 0");
t.ok(atPoint == g_Return, "real toleranceLon/Lat returns correctly");
OpenLayers.Bounds.prototype.containsLonLat = OpenLayers.Bounds.prototype._containsLonLat;
}
function test_Geometry_getLength(t) {
t.plan(1);
var g = new OpenLayers.Geometry();
t.eq(g.getLength(), 0, "getLength is 0");
}
function test_Geometry_getArea(t) {
t.plan(1);
var g = new OpenLayers.Geometry();
t.eq(g.getArea(), 0, "getArea is 0");
}
function test_Geometry_clearBounds(t) {
t.plan(2);
var g = new OpenLayers.Geometry();
g.parent = new OpenLayers.Geometry();
g.bounds = "foo";
g.parent.bounds = "bar";
g.clearBounds();
t.ok(g.bounds == null, "bounds is correctly cleared");
t.ok(g.parent.bounds == null, "parent geometry bounds is correctly cleared");
}
function test_Geometry_destroy(t) {
t.plan( 2 );
var g = new OpenLayers.Geometry();
g.bounds = new OpenLayers.Bounds();
g_style_destroy = null;
g.destroy();
t.eq(g.id, null, "id nullified");
t.eq(g.bounds, null, "bounds nullified");
}
function test_Geometry_intersects_geos_wkt(t) {
var wkt = new OpenLayers.Format.WKT();
var failures = [];
var intersect12, intersect21, msg;
for (var i = 0; i < geos_test_data.length; i++) {
var testcase = geos_test_data[i];
f1 = wkt.read(testcase['wkt1']);
f2 = wkt.read(testcase['wkt2']);
intersect12 = f1.geometry.intersects(f2.geometry);
intersect21 = f2.geometry.intersects(f1.geometry);
if(intersect12 != testcase.result) {
msg = "f1 should " + (testcase.result ? "" : "not ") +
"intersect f2: f1 = '" + testcase['wkt1'] + "' " +
"f2 = '" + testcase['wkt2'] + "'";
failures.push(msg);
}
if(intersect21 != testcase.result) {
msg = "f2 should " + (testcase.result ? "" : "not ") +
"intersect f1: f1 = '" + testcase['wkt1'] + "' " +
"f2 = '" + testcase['wkt2'] + "'";
failures.push(msg);
}
}
if(failures.length == 0) {
t.plan(1);
t.ok(true, "all " + geos_test_data.length + " geos tests pass");
} else {
t.plan(failures.length);
for(var f=0; f<failures.length; ++f) {
t.fail(failures[f]);
}
}
}
function test_distanceToSegment(t) {
var dist = OpenLayers.Geometry.distanceToSegment;
var cases = [{
got: dist({x: 0, y: 0}, {x1: 0, y1: 1, x2: 1, y2: 1}),
expected: {distance: 1, x: 0, y: 1}
}, {
got: dist({x: 0, y: 0}, {x1: -1, y1: -1, x2: 0, y2: -1}),
expected: {distance: 1, x: 0, y: -1}
}, {
got: dist({x: 0, y: 0}, {x1: -1, y1: -1, x2: 1, y2: 1}),
expected: {distance: 0, x: 0, y: 0}
}, {
got: dist({x: 1, y: 1}, {x1: 2, y1: 0, x2: 2, y2: 3}),
expected: {distance: 1, x: 2, y: 1}
}, {
got: dist({x: -1, y: -1}, {x1: -2, y1: -2, x2: -1, y2: -3}),
expected: {distance: Math.sqrt(2), x: -2, y: -2}
}, {
got: dist({x: -1, y: 1}, {x1: -3, y1: 1, x2: -1, y2: 3}),
expected: {distance: Math.sqrt(2), x: -2, y: 2}
}];
t.plan(cases.length);
for(var i=0; i<cases.length; ++i) {
t.eq(cases[i].got, cases[i].expected, "case " + i);
}
}
function test_fromWKT(t) {
var cases = [{
wkt: "POINT(1 2)",
geom: new OpenLayers.Geometry.Point(1, 2)
}, {
wkt: "MULTIPOINT(3.5 5.6,4.8 10.5)",
geom: new OpenLayers.Geometry.MultiPoint([
new OpenLayers.Geometry.Point(3.5, 5.6),
new OpenLayers.Geometry.Point(4.8, 10.5)
])
}, {
wkt: "LINESTRING(1 2, 3 4)",
geom: new OpenLayers.Geometry.LineString([
new OpenLayers.Geometry.Point(1, 2),
new OpenLayers.Geometry.Point(3, 4)
])
}, {
wkt: "POLYGON((0 0, 0 4, 4 4, 4 0, 0 0),(1 1, 1 3, 3 3, 3 1, 1 1))",
geom: new OpenLayers.Geometry.Polygon([
new OpenLayers.Geometry.LinearRing([
new OpenLayers.Geometry.Point(0, 0),
new OpenLayers.Geometry.Point(0, 4),
new OpenLayers.Geometry.Point(4, 4),
new OpenLayers.Geometry.Point(4, 0),
new OpenLayers.Geometry.Point(0, 0)
]),
new OpenLayers.Geometry.LinearRing([
new OpenLayers.Geometry.Point(1, 1),
new OpenLayers.Geometry.Point(1, 3),
new OpenLayers.Geometry.Point(3, 3),
new OpenLayers.Geometry.Point(3, 1),
new OpenLayers.Geometry.Point(1, 1)
])
])
}, {
wkt: "GEOMETRYCOLLECTION(POINT(4 6),LINESTRING(4 6,7 10))",
geom: new OpenLayers.Geometry.Collection([
new OpenLayers.Geometry.Point(4, 6),
new OpenLayers.Geometry.LineString([
new OpenLayers.Geometry.Point(4, 6),
new OpenLayers.Geometry.Point(7, 10)
])
])
}];
t.plan(cases.length);
var wkt = OpenLayers.Geometry.fromWKT;
for(var i=0; i<cases.length; ++i) {
t.geom_eq(wkt(cases[i].wkt), cases[i].geom, "case " + i);
}
}
</script>
</head>
<body>
<div id="map" style="width: 1024px; height: 512px;"/>
</body>
</html>