brisket/brisket

"use strict";

describe("App starts client", function() {
    var App = require("../../../lib/application/App");
    var ClientInitializer = require("../../../lib/client/ClientInitializer");
    var SetupLinksAndPushState = require("../../../lib/client/SetupLinksAndPushState");
    var Browser = require("../../../lib/client/Browser");

    var startConfig;
    var serverRendererStartScript;

    beforeEach(function() {
        serverRendererStartScript = {
            startConfig: {
                environmentConfig: {
                    appRoot: "root"
                }
            }
        };

        startConfig = serverRendererStartScript.startConfig;

        spyOn(ClientInitializer, "forApp");
        spyOn(SetupLinksAndPushState, "start");
    });

    afterEach(function() {
        App.reset();
        window.Brisket = undefined;
    });

    describe("when server renderer start script is available already", function() {

        beforeEach(function() {
            whenAppStartsSync();
        });

        it("initializes app on client", function() {
            expect(ClientInitializer.forApp).toHaveBeenCalledWith(startConfig);
        });

        it("initializes setup links and push state", function() {
            expect(SetupLinksAndPushState.start).toHaveBeenCalled();
        });

    });

    describe("when server renderer start script is NOT available already", function() {

        beforeEach(function() {
            whenAppStartsAsync();
        });

        it("initializes app on client", function() {
            expect(ClientInitializer.forApp).toHaveBeenCalledWith(startConfig);
        });

        it("initializes setup links and push state", function() {
            expect(SetupLinksAndPushState.start).toHaveBeenCalled();
        });

    });

    describe("setting up links and push state", function() {

        it("sets up links with push state when push state is available", function() {
            spyOn(Browser, "hasPushState").and.returnValue(true);

            whenAppStartsSync();

            expect(SetupLinksAndPushState.start).toHaveBeenCalledWith({
                root: "root",
                browserSupportsPushState: true
            });
        });

        it("sets up links without push state when push state is NOT available", function() {
            spyOn(Browser, "hasPushState").and.returnValue(false);

            whenAppStartsSync();

            expect(SetupLinksAndPushState.start).toHaveBeenCalledWith({
                root: "root",
                browserSupportsPushState: false
            });
        });

        it("sets up links with appRoot when appRoot is passed in", function() {
            spyOn(Browser, "hasPushState").and.returnValue(false);

            whenAppStartsSync();

            expect(SetupLinksAndPushState.start).toHaveBeenCalledWith({
                root: "root",
                browserSupportsPushState: false
            });
        });

        it("sets up links without appRoot when appRoot is NOT passed in", function() {
            startConfig.environmentConfig.appRoot = undefined;
            spyOn(Browser, "hasPushState").and.returnValue(false);

            whenAppStartsSync();

            expect(SetupLinksAndPushState.start).toHaveBeenCalledWith({
                root: "",
                browserSupportsPushState: false
            });
        });

    });

    function whenAppStartsSync() {
        window.Brisket = serverRendererStartScript;
        App.start();
    }

    function whenAppStartsAsync() {
        App.start();
        window.Brisket.startConfig = startConfig;
    }

});