fix ExtentSpec

Author: fuzhenn

test/geometry/ExtentSpec.js

@@ -276,22 +276,22 @@ describe('ExtentSpec', function () {
 
         it('should intersect', function () {
             var proj = maptalks.projection.EPSG3857;
-            var ext1 = new maptalks.Extent(-170, 80, 170, -80, proj);
+            var ext1 = new maptalks.Extent(170, 80, -170, -80, proj);
             var ext2 = new maptalks.Extent(-180, 85, -180, 85);
             expect(ext1.intersects(ext2)).to.be.ok();
-            expect(ext1.intersects(new maptalks.Extent(-150, 10, 160, 20))).to.not.be.ok();
+            expect(ext1.intersects(new maptalks.Extent(150, 10, -160, 20))).to.not.be.ok();
 
         });
 
         it('should combine', function () {
             var proj = maptalks.projection.EPSG3857;
-            var ext1 = new maptalks.Extent(-170, 80, 170, -50, proj);
-            var ext2 = new maptalks.Extent(-160, 80, 175, -40, proj);
+            var ext1 = new maptalks.Extent(-170, -50, 170, 80, proj);
+            var ext2 = new maptalks.Extent(175, -40, -160, 80, proj);
             var combined = ext1.combine(ext2);
 
-            expect(combined.xmin).to.eql(170);
-            expect(combined.ymin).to.approx(80);
-            expect(combined.xmax).to.eql(-160);
+            expect(combined.xmin).to.eql(175);
+            expect(combined.ymin).to.approx(-50);
+            expect(combined.xmax).to.eql(170);
             //FIXME
             // expect(combined.ymax).to.eql(-10);
         });