terriajs/test/Models/UrlTemplateCatalogItemSpec.js

Geospatial data visualization platform.

'use strict';

/*global require,describe,it,expect,beforeEach*/

var Terria = require('../../lib/Models/Terria');
var ImageryLayerCatalogItem = require('../../lib/Models/ImageryLayerCatalogItem');
var NeverTileDiscardPolicy = require('terriajs-cesium/Source/Scene/NeverTileDiscardPolicy');
var UrlTemplateCatalogItem = require('../../lib/Models/UrlTemplateCatalogItem');

var terria;
var urlTemplateCatalogItem;

describe('UrlTemplateCatalogItem', function() {
    beforeEach(function() {
        terria = new Terria({
            baseUrl: './'
        });

        urlTemplateCatalogItem = new UrlTemplateCatalogItem(terria);
    });

    it('has sensible type and typeName', function() {
        expect(urlTemplateCatalogItem.type).toBe('url-template');
        expect(urlTemplateCatalogItem.typeName).toBe('URL Template Map Server');
    });

    it('can be constructed', function() {
        expect(urlTemplateCatalogItem).toBeDefined();
    });

    it('is derived from ImageryLayerCatalogItem', function() {
        expect(urlTemplateCatalogItem instanceof ImageryLayerCatalogItem).toBe(true);
    });

    it('creates Cesium imagery provider correctly', function(done) {
        urlTemplateCatalogItem.url = '{s}.tiles.example.com/mylayer/{z}/{x}/{y}.png';
        urlTemplateCatalogItem.minimumLevel = 1;
        urlTemplateCatalogItem.maximumLevel = 5;
        urlTemplateCatalogItem.attribution = 'Thanks to the awesome data provider!';
        urlTemplateCatalogItem.subdomains = ['a', 'd'];
        urlTemplateCatalogItem.tileDiscardPolicy = new NeverTileDiscardPolicy();

        urlTemplateCatalogItem.load().then(function() {
            var provider = urlTemplateCatalogItem._createImageryProvider();
            expect(provider.url).toBe('{s}.tiles.example.com/mylayer/{z}/{x}/{y}.png');
            expect(provider.minimumLevel).toBe(1);
            expect(provider.maximumLevel).toBe(5);
            expect(provider.credit.html).toBe('Thanks to the awesome data provider!');
            expect(provider._subdomains).toEqual(['a', 'd']);
            expect(provider.tileDiscardPolicy instanceof NeverTileDiscardPolicy).toBe(true);
        }).then(done).otherwise(done.fail);
    });
});