terriajs/test/ViewModels/updateApplicationOnMessageFromParentWindowSpec.js

Geospatial data visualization platform.

'use strict';

/*global require*/
var CatalogGroup = require('../../lib/Models/CatalogGroup');
var createCatalogMemberFromType = require('../../lib/Models/createCatalogMemberFromType');
var Terria = require('../../lib/Models/Terria');
var updateApplicationOnMessageFromParentWindow = require('../../lib/ViewModels/updateApplicationOnMessageFromParentWindow');

describe('updateApplicationOnMessageFromParentWindow', function() {
    var terria;
    var fakeWindow;

    beforeEach(function() {
        terria = new Terria({
            baseUrl: './'
        });
        createCatalogMemberFromType.register('group', CatalogGroup);

        fakeWindow = jasmine.createSpyObj('window', ['addEventListener']);
        fakeWindow.parent = jasmine.createSpyObj('parentWindow', ['postMessage']);
    });

    it('subscribes to messages', function() {
        updateApplicationOnMessageFromParentWindow(terria, fakeWindow);
        expect(fakeWindow.addEventListener.calls.count()).toBe(1);
        expect(fakeWindow.addEventListener.calls.first().args[0]).toBe('message');
    });

    it('posts a message to its parent when ready', function() {
        updateApplicationOnMessageFromParentWindow(terria, fakeWindow);
        expect(fakeWindow.parent.postMessage.calls.count()).toBe(1);
        expect(fakeWindow.parent.postMessage.calls.first().args).toEqual(['ready', '*']);
    });

    it('updates the model when it receives a message from the parent', function() {
        var messageEventHandler;
        fakeWindow.addEventListener.and.callFake(function(eventName, callback) {
            messageEventHandler = callback;
        });
        updateApplicationOnMessageFromParentWindow(terria, fakeWindow);

        messageEventHandler({
            source: fakeWindow.parent,
            data: {
                initSources: [
                    {
                        catalog: [
                            {
                                name: "Foo",
                                type: "group"
                            }
                        ]
                    }
                ]
            }
        });

        var fooGroup = terria.catalog.group.findFirstItemByName('Foo');
        expect(fooGroup).toBeDefined();
        expect(fooGroup.type).toBe('group');
    });

    it('updates the model when it receives a message from the opener', function() {
        var messageEventHandler;
        fakeWindow.addEventListener.and.callFake(function(eventName, callback) {
            messageEventHandler = callback;
        });
        updateApplicationOnMessageFromParentWindow(terria, fakeWindow);

        messageEventHandler({
            opener: fakeWindow.parent,
            data: {
                initSources: [
                    {
                        catalog: [
                            {
                                name: "Foo",
                                type: "group"
                            }
                        ]
                    }
                ]
            }
        });

        var fooGroup = terria.catalog.group.findFirstItemByName('Foo');
        expect(fooGroup).toBeDefined();
        expect(fooGroup.type).toBe('group');
    });

    it('ignores messages that are not from its parent or opener window', function() {
        var messageEventHandler;
        fakeWindow.addEventListener.and.callFake(function(eventName, callback) {
            messageEventHandler = callback;
        });
        updateApplicationOnMessageFromParentWindow(terria, fakeWindow);

        messageEventHandler({
            source: {},
            data: {
                initSources: [
                    {
                        catalog: [
                            {
                                name: "Foo",
                                type: "group"
                            }
                        ]
                    }
                ]
            }
        });

        expect(terria.catalog.group.findFirstItemByName('Foo')).not.toBeDefined();
    });
});