extlib/leaflet/spec/suites/geo/LatLngSpec.js

   1 describe('LatLng', function() {
   2         describe('constructor', function() {
   3                 it("should set lat and lng", function() {
   4                         var a = new L.LatLng(25, 74);
   5                         expect(a.lat).toEqual(25);
   6                         expect(a.lng).toEqual(74);
   7
   8                         var a = new L.LatLng(-25, -74);
   9                         expect(a.lat).toEqual(-25);
  10                         expect(a.lng).toEqual(-74);
  11                 });
  12
  13                 it("should clamp latitude to lie between -90 and 90", function() {
  14                         var a = new L.LatLng(150, 0).lat;
  15                         expect(a).toEqual(90);
  16
  17                         var b = new L.LatLng(-230, 0).lat;
  18                         expect(b).toEqual(-90);
  19                 });
  20
  21                 it("should clamp longtitude to lie between -180 and 180", function() {
  22                         var a = new L.LatLng(0, 190).lng;
  23                         expect(a).toEqual(-170);
  24
  25                         var b = new L.LatLng(0, 360).lng;
  26                         expect(b).toEqual(0);
  27
  28                         var c = new L.LatLng(0, 380).lng;
  29                         expect(c).toEqual(20);
  30
  31                         var d = new L.LatLng(0, -190).lng;
  32                         expect(d).toEqual(170);
  33
  34                         var e = new L.LatLng(0, -360).lng;
  35                         expect(e).toEqual(0);
  36
  37                         var f = new L.LatLng(0, -380).lng;
  38                         expect(f).toEqual(-20);
  39                 });
  40
  41                 it("should not clamp latitude and longtitude if unbounded flag set to true", function() {
  42                         var a = new L.LatLng(150, 0, true).lat;
  43                         expect(a).toEqual(150);
  44
  45                         var b = new L.LatLng(-230, 0, true).lat;
  46                         expect(b).toEqual(-230);
  47
  48                         var c = new L.LatLng(0, 250, true).lng;
  49                         expect(c).toEqual(250);
  50
  51                         var d = new L.LatLng(0, -190, true).lng;
  52                         expect(d).toEqual(-190);
  53                 });
  54         });
  55
  56         describe('#equals', function() {
  57                 it("should return true if compared objects are equal within a certain margin", function() {
  58                         var a = new L.LatLng(10, 20);
  59                         var b = new L.LatLng(10 + 1.0E-10, 20 - 1.0E-10);
  60                         expect(a.equals(b)).toBe(true);
  61                 });
  62
  63                 it("should return false if compared objects are not equal within a certain margin", function() {
  64                         var a = new L.LatLng(10, 20);
  65                         var b = new L.LatLng(10, 23.3);
  66                         expect(a.equals(b)).toBe(false);
  67                 });
  68         });
  69 });
  70