Files
carto.js/test/spec/geo/geometry-models/polygon.spec.js
2020-06-13 18:34:34 +08:00

67 lines
1.9 KiB
JavaScript

var Polygon = require('../../../../src/geo/geometry-models/polygon');
describe('src/geo/geometry-models/polygon', function () {
beforeEach(function () {
this.polygon = new Polygon(null, {
latlngs: [
[-1, 1], [1, 2], [3, 4]
]
});
});
describe('.toGeoJSON', function () {
it('should generate the GeoJSON correctly', function () {
expect(this.polygon.toGeoJSON()).toEqual({
type: 'Polygon',
coordinates: [
[ [ 1, -1 ], [ 2, 1 ], [ 4, 3 ], [ 1, -1 ] ]
]
});
});
});
describe('.setCoordinatesFromGeoJSON', function () {
beforeEach(function () {
this.changeCallback = jasmine.createSpy('changeCallback');
this.polygon.on('change', this.changeCallback);
});
describe('when given a GeoJSON with the same coordinates', function () {
beforeEach(function () {
var newAndExpectedGeoJSON = this.polygon.toGeoJSON();
this.polygon.setCoordinatesFromGeoJSON(newAndExpectedGeoJSON);
});
it('should NOT trigger a "change" event', function () {
expect(this.changeCallback).not.toHaveBeenCalled();
});
});
describe('when given a GeoJSON with different coordinates', function () {
beforeEach(function () {
var newAndExpectedGeoJSON = {
type: 'Polygon',
coordinates: [
[ [ 0, 0 ], [ 10, 10 ], [ 20, 20 ], [ 0, 0 ] ]
]
};
this.polygon.setCoordinatesFromGeoJSON(newAndExpectedGeoJSON);
expect(this.polygon.toGeoJSON()).toEqual(newAndExpectedGeoJSON);
});
it('should trigger a "change" event', function () {
expect(this.changeCallback).toHaveBeenCalled();
});
it('should update the coordinates', function () {
expect(this.polygon.toGeoJSON()).toEqual({
type: 'Polygon',
coordinates: [
[ [ 0, 0 ], [ 10, 10 ], [ 20, 20 ], [ 0, 0 ] ]
]
});
});
});
});
});