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Test & improve the getCentroid/centroid method of collections

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This commit is contained in:
Marc Jansen
2012-06-22 18:23:40 +02:00
parent abb254a0fb
commit be9448457d
3 changed files with 73 additions and 2 deletions
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33
test/spec/ol/geom/Collection.test.js
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@@ -132,4 +132,37 @@ describe("ol.geom.Collection", function() {
expect( components[1].getX() + ',' + components[1].getY()).toBe( '10,20' );
expect( components[2].getX() + ',' + components[2].getY()).toBe( '30,40' );
});
describe("the getCentroid method is functional", function(){
it("returns an instance of ol.geom.Point", function(){
expect(c.getCentroid()).toBeA(ol.geom.Point);
});
it("does not choke when components returns a null centroid", function(){
var centroid;
expect(
function(){
c.addComponent(new ol.geom.LineString([]));
centroid = c.getCentroid();
}
).not.toThrow();
expect(centroid).toBeA(ol.geom.Point);
});
it("has the expected coordinates", function(){
c = new ol.geom.Collection([
new ol.geom.Point(10,10),
new ol.geom.Point(30,30),
new ol.geom.LineString([
new ol.geom.Point(10,10),
new ol.geom.Point(10,30),
new ol.geom.Point(30,30),
new ol.geom.Point(30,10)
])
]);
var centroid = c.getCentroid();
expect(centroid.getX() + ',' + centroid.getY()).toBe('20,20');
});
});
});