describe('Region intersection', function(){ var Region = require('../index') it('should containPoint', function(){ var inner = Region({ left: 97, right: 147, top: 51, bottom: 251 }) var outer = Region({ left: 11, right: 447, top: 51, bottom: 937 }) outer.getIntersection(inner).getArea() .should .equal(inner.getArea()) }) })