Leaflet/spec/suites/geo/LatLngSpec.js
2011-12-21 13:22:07 +00:00

77 lines
2.0 KiB
JavaScript

describe('LatLng', function() {
describe('constructor', function() {
it("should set lat and lng", function() {
var a = new L.LatLng(25, 74);
expect(a.lat).toEqual(25);
expect(a.lng).toEqual(74);
var a = new L.LatLng(-25, -74);
expect(a.lat).toEqual(-25);
expect(a.lng).toEqual(-74);
});
it("should clamp latitude to lie between -90 and 90", function() {
var a = new L.LatLng(150, 0).lat;
expect(a).toEqual(90);
var b = new L.LatLng(-230, 0).lat;
expect(b).toEqual(-90);
});
it("should clamp longtitude to lie between -180 and 180", function() {
var a = new L.LatLng(0, 190).lng;
expect(a).toEqual(-170);
var b = new L.LatLng(0, 360).lng;
expect(b).toEqual(0);
var c = new L.LatLng(0, 380).lng;
expect(c).toEqual(20);
var d = new L.LatLng(0, -190).lng;
expect(d).toEqual(170);
var e = new L.LatLng(0, -360).lng;
expect(e).toEqual(0);
var f = new L.LatLng(0, -380).lng;
expect(f).toEqual(-20);
var g = new L.LatLng(0, 90).lng;
expect(g).toEqual(90);
var h = new L.LatLng(0, 180).lng;
expect(h).toEqual(180);
});
it("should not clamp latitude and longtitude if unbounded flag set to true", function() {
var a = new L.LatLng(150, 0, true).lat;
expect(a).toEqual(150);
var b = new L.LatLng(-230, 0, true).lat;
expect(b).toEqual(-230);
var c = new L.LatLng(0, 250, true).lng;
expect(c).toEqual(250);
var d = new L.LatLng(0, -190, true).lng;
expect(d).toEqual(-190);
});
});
describe('#equals', function() {
it("should return true if compared objects are equal within a certain margin", function() {
var a = new L.LatLng(10, 20);
var b = new L.LatLng(10 + 1.0E-10, 20 - 1.0E-10);
expect(a.equals(b)).toBe(true);
});
it("should return false if compared objects are not equal within a certain margin", function() {
var a = new L.LatLng(10, 20);
var b = new L.LatLng(10, 23.3);
expect(a.equals(b)).toBe(false);
});
});
});