141 lines
3.9 KiB
JavaScript
141 lines
3.9 KiB
JavaScript
describe('LatLng', function () {
|
|
describe('constructor', function () {
|
|
it("sets lat and lng", function () {
|
|
var a = new L.LatLng(25, 74);
|
|
expect(a.lat).to.eql(25);
|
|
expect(a.lng).to.eql(74);
|
|
|
|
var b = new L.LatLng(-25, -74);
|
|
expect(b.lat).to.eql(-25);
|
|
expect(b.lng).to.eql(-74);
|
|
});
|
|
|
|
it('throws an error if invalid lat or lng', function () {
|
|
expect(function () {
|
|
var a = new L.LatLng(NaN, NaN);
|
|
}).to.throwError();
|
|
});
|
|
|
|
it('does not set altitude if undefined', function () {
|
|
var a = new L.LatLng(25, 74);
|
|
expect(typeof a.alt).to.eql('undefined');
|
|
});
|
|
|
|
it('sets altitude', function () {
|
|
var a = new L.LatLng(25, 74, 50);
|
|
expect(a.alt).to.eql(50);
|
|
|
|
var b = new L.LatLng(-25, -74, -50);
|
|
expect(b.alt).to.eql(-50);
|
|
});
|
|
|
|
});
|
|
|
|
describe('#equals', function () {
|
|
it("returns 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)).to.eql(true);
|
|
});
|
|
|
|
it("returns 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)).to.eql(false);
|
|
});
|
|
|
|
it('returns false if passed non-valid object', function () {
|
|
var a = new L.LatLng(10, 20);
|
|
expect(a.equals(null)).to.eql(false);
|
|
});
|
|
});
|
|
|
|
describe('#toString', function () {
|
|
it('formats a string', function () {
|
|
var a = new L.LatLng(10.333333333, 20.2222222);
|
|
expect(a.toString(3)).to.eql('LatLng(10.333, 20.222)');
|
|
});
|
|
});
|
|
|
|
describe('#distanceTo', function () {
|
|
it('calculates distance in meters', function () {
|
|
var a = new L.LatLng(50.5, 30.5);
|
|
var b = new L.LatLng(50, 1);
|
|
|
|
expect(Math.abs(Math.round(a.distanceTo(b) / 1000) - 2084) < 5).to.eql(true);
|
|
});
|
|
it('does not return NaN if input points are equal', function () {
|
|
var a = new L.LatLng(50.5, 30.5);
|
|
var b = new L.LatLng(50.5, 30.5);
|
|
|
|
expect(a.distanceTo(b)).to.eql(0);
|
|
});
|
|
});
|
|
|
|
describe('L.latLng factory', function () {
|
|
it('returns LatLng instance as is', function () {
|
|
var a = new L.LatLng(50, 30);
|
|
|
|
expect(L.latLng(a)).to.eql(a);
|
|
});
|
|
|
|
it('accepts an array of coordinates', function () {
|
|
expect(L.latLng([])).to.eql(null);
|
|
expect(L.latLng([50])).to.eql(null);
|
|
expect(L.latLng([50, 30])).to.eql(new L.LatLng(50, 30));
|
|
expect(L.latLng([50, 30, 100])).to.eql(new L.LatLng(50, 30, 100));
|
|
});
|
|
|
|
it('passes null or undefined as is', function () {
|
|
expect(L.latLng(undefined)).to.eql(undefined);
|
|
expect(L.latLng(null)).to.eql(null);
|
|
});
|
|
|
|
it('creates a LatLng object from two coordinates', function () {
|
|
expect(L.latLng(50, 30)).to.eql(new L.LatLng(50, 30));
|
|
});
|
|
|
|
it('accepts an object with lat/lng', function () {
|
|
expect(L.latLng({lat: 50, lng: 30})).to.eql(new L.LatLng(50, 30));
|
|
});
|
|
|
|
it('accepts an object with lat/lon', function () {
|
|
expect(L.latLng({lat: 50, lon: 30})).to.eql(new L.LatLng(50, 30));
|
|
});
|
|
|
|
it('returns null if lng not specified', function () {
|
|
expect(L.latLng(50)).to.be(null);
|
|
});
|
|
|
|
it('accepts altitude as third parameter', function () {
|
|
expect(L.latLng(50, 30, 100)).to.eql(new L.LatLng(50, 30, 100));
|
|
});
|
|
|
|
it('accepts an object with alt', function () {
|
|
expect(L.latLng({lat: 50, lng: 30, alt: 100})).to.eql(new L.LatLng(50, 30, 100));
|
|
expect(L.latLng({lat: 50, lon: 30, alt: 100})).to.eql(new L.LatLng(50, 30, 100));
|
|
});
|
|
});
|
|
|
|
describe('#clone', function () {
|
|
|
|
it('should clone attributes', function () {
|
|
var a = new L.LatLng(50.5, 30.5, 100);
|
|
var b = a.clone();
|
|
|
|
expect(b.lat).to.equal(50.5);
|
|
expect(b.lng).to.equal(30.5);
|
|
expect(b.alt).to.equal(100);
|
|
});
|
|
|
|
it('should create another reference', function () {
|
|
var a = new L.LatLng(50.5, 30.5, 100);
|
|
var b = a.clone();
|
|
|
|
expect(a === b).to.be(false);
|
|
});
|
|
|
|
});
|
|
|
|
});
|